• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    filter with a replaceable filter insert. the present invention relates to a filter (1) for a fluid medium, with a filter box (2) and a cover (21) that can be removably connected to it, with a filter insert (3) replaceable, which consists of a body of hollow cylindrical filter material (30) and two front discs (31, 32) that grip it from the front side, and the filter insert (3) can be fitted over a central vertical tube (4) that forms a part of the filter box (2), and on the vertical tube (4) a locking ring (5) is guided in an axially displaceable way, the locking ring ( 5) it is preloaded with a force that acts in the direction of pushing outwards, pointing towards the free end of the vertical tube (4), and the locking ring (5), in a pushed-out position, is located if blocked by means of a locking device (40) against an inward movement, provided that unlocking means (33) are provided g used from the filter insert (3), which, when the filter insert (3) is pushed onto the vertical tube (4), activate the locking device (40) in the unlock direction and release a pushing the locking ring (5) and the filter insert (3) inwards, and, in the installed state of the filter insert (3) in the locking box (5), in cooperation with a sealing surface (26) of the filter box (2), separates a rough side (10) and a clean side (11) of the filter (1) from each other. the filter (1) according to the invention is characterized by the fact that when the locking ring (5) is in the pushed-out position and when the filter insert (3) is axially leaning against the locking ring (5 ), the seal (36) will be kept away from the corresponding sealing surface (26) of the filter housing (2). the invention also relates to a filter insert (3) to be used in a filter (1) of the type mentioned above.
    公开号:BR112013011011B1
    申请号:R112013011011-2
    申请日:2011-10-31
    公开日:2020-09-15
    发明作者:Wilhelm Ardes
    申请人:Hengst Gmbh & Co. Kg；
    IPC主号:
    专利说明:

    The present invention relates to a filter for a fluid medium, especially oil filter, water filter, fuel filter or air filter of an internal combustion engine, with a filter box and a cover that can be connected to it removably, with a built-in replaceable filter piece, which consists of a body of hollow cylindrical filter material and two front discs that grip the front side, one of which front discs has a central gap, and the built-in filter part with the front disc with a gap can be fitted first on a central vertical tube that forms a part of the filter box, and on the vertical tube an axially displaceable locking ring is guided, and the locking ring is preloaded with a force that acts in the direction of pushing outwards towards the free end of the vertical tube, and the locking ring, in a pushed out position, finds it is blocked by means of a locking device against an inward movement, and guided release means are provided from the filter insert, which, when the filter insert is pushed out onto the tube vertical, activate the locking device in the unlocking direction and release a push of the locking ring and the filter insert inward, and, in the installed state of the filter insert in the filter box, a seal provided on the disc front or in the locking ring, in cooperation with a sealing surface of the filter housing, separates a rough side and a clean side of the filter from each other. In addition, the invention relates to a filter insert to be used in the filter mentioned above.
    Increasing demands are placed on filters, especially oil filters, water filters, fuel filters or air filters for an internal combustion engine, especially with regard to the fineness of the filter and the service life of replaceable filter insert parts. . These high requirements can only be met if suitable, high-quality filter insert parts are installed in the filters.
    A filter in which the installation of an inappropriate foreign filter insert is prevented in the context of filter maintenance by changing the filter insert is known from EP 1 235 624 B1. This document describes a filter with the characteristics mentioned above. The locking ring driven on the vertical pipe is, at the same time, a valve sleeve, which is axially displaceable over the vertical pipe and is preloaded with a force acting in the direction of closing the valve. In the closed position of the valve, the locking ring engages with the vertical tube by means of locking noses pointed inwards on locking tabs. By inserting a built-in filter piece with suitable unlocking means, the engagement of the locking ring, respectively of the valve sleeve, with the vertical tube is released, as the locking tabs are pivoted radially outwards. The locking ring will then be moved through the filter insert to the opening position of the valve and will be retained there. A strange and unsuitable filter insert does not release the locking ring engagement on the vertical tube and the filter insert cannot be fully fitted over the vertical tube. Therefore, due to the valve body in the closed position, it is not possible to operate the filter; the same applies to the absence of the filter insert. The locking ring is sealed in relation to the vertical tube by means of a sealing ring. The front disc of the filter insert, which cooperates with the locking ring, is sealed in relation to the locking ring by means of another sealing ring on the front disc.
    This known filter actually meets the requirement to prevent the installation of a strange and inappropriate filter insert, although a filter insert with a front disc with relatively expensive designed release means is required for this and there are two sealing points, each with a sealing ring, which disadvantageously entails a greater expenditure on parts and assembly.
    For this reason, the objective of the present invention is to create a filter of the type mentioned at the beginning, which prevents the use of inappropriate filter insert parts and the operation of the filter without filter insert and, in this case, presents a construction simple with a small number of individual parts and, thus, with a high functional reliability.
    The solution of the part of this objective that refers to the filter occurs, according to the invention, with a filter of the type mentioned at the beginning, which is characterized by the fact that, in the case of the locking ring located in the pushed-out position and of an embedded filter piece located in axial contact with the locking ring, the seal is kept away from the corresponding sealing surface of the filter box.
    Advantageously simple construction is achieved with the invention, because in the filter only a seal is required between the filter insert and the filter box; no other seals are required. Even with the only seal, the desired function is obtained, that is, to prevent the filter from working with a strange and inadequate filter insert that does not have the necessary unlocking means. This is achieved in a particularly simple way due to the fact that if a built-in filter part is used that does not have the necessary unlocking means, the seal between it and the filter box will not reach a sealing position; instead, according to the invention, in that case the seal will be kept at a distance from the corresponding seal seat. At the same time, the filter insert cannot be taken to its installation position, which prevents the filter box from being closed with the corresponding box cover. In this way, with technically simple means, the desired function is obtained with high reliability and with favorable manufacturing and assembly costs.
    Preferably, in another configuration it is provided that the filter box has a bottom with a hollow cylindrical bottom central part and that the sealing surface on the side of the filter box is arranged on an internal circumferential surface or external circumferential surface or surface front of the hollow cylindrical bottom part. In the case of this form of implementation, a sealing with a relatively small diameter is advantageous, which contributes to favorable manufacturing costs. The seal can be designed to seal radially or to seal axially, and a seal that seals radially is preferable because it is easier to compensate for measurement tolerances.
    In the sense of a compact construction, it is proposed that the hollow cylindrical bottom part and a lower part of the vertical tube delimit an annular slot, which houses the locking ring in its pushed position, at least by a part of your Height.
    In addition, it is envisaged that the front disc of the built-in filter that has the breach, on its face facing the body of the filter material, has a central annular extension, which surrounds the breach and sustains the seal. Due to the fact that the seal is associated with the filter insert, each time the filter insert is replaced in maintenance, the seal is renewed, which contributes to reliable operation.
    A related form of development proposes that in the condition of the filter insert installed in the filter box, the extension with the seal grips the annular slot. In this form of execution, a favorable arrangement and housing of the fence is possible.
    In the filter according to the invention, the unlocking means are arranged or molded in the filter insert or in a separate locking means body that can be plugged onto the vertical tube before the filter insert. In the first alternative, particularly few individual parts are required. In the second alternative, due to the separate release means body, there is, in fact, one more component, although this allows greater freedom in the connection of embedded filter parts, as they do not need to present the means of unlocking, unless that only guide and position only the body of release means when installing the filter insert in the filter box.
    Preferably, however, it is provided that the unlocking means are arranged or molded on the front disc of the filter insert that has a gap or on a support body that forms a part of the filter insert and that is arranged in the inside the filter material body between the front discs. In this case, in addition, the existing parts of the built-in filter part are used for the arrangement of the unlocking means, which is favorable from the point of view of the manufacturing technique. The support body can be a hollow cylindrical support grid, for example.
    The filter locking device mentioned above can be designed differently. A first form of correlated execution provides that the locking device is formed by locking tongues projected in one piece with the vertical tube or connected to it firmly and movable in the radial direction, each with a locking surface pointing in the axial direction ; that the locking tabs are preloaded with a force acting in the locking direction and that, with their locking surfaces, lock the locking ring in its pushed-out position against an inward push axially with respect to the vertical tube, and that by means of the unlocking means, when the insert of the filter insert fits over the vertical tube, the locking tabs become mobile directly in the radial direction to their unlocking position. Due to the fact that the locking tabs that form the locking device form a single piece with the locking ring or are firmly connected with it, then these parts form a unit that can be connected together with the vertical tube. In this case, an unlocking of the locking ring in a desirable mode can only occur when, when installing the filter insert, the unlocking means necessary to unlock the locking tabs, in this form of execution and suitable arrangement, are carried out. an unlocking coupling with the locking tabs. Due to the direct action of the release means on the locking tabs, particularly reliable operation is achieved.
    In this case, the locking tabs preferably extend in an axial direction. Thus, the locking tabs can be designed, without problems, with a sufficiently long length, which enables the necessary radial mobility without special joints. For this, at least the locking tabs are made of a flexible material.
    In addition, the locking tabs are preferably provided with a malleable material. In this form of execution, the force that preloads the locking tabs in the locking direction can be generated by the material itself, which makes separate springs or similar parts unnecessary.
    Another configuration provides for the locking ring to be hollow cylindrical and to be seated outside on the vertical tube and for the locking tabs to be provided on the vertical tube and to have a respective locking nose directed radially outwards, with the locking noses they can be made to engage and disengage with a front face of the locking ring. In this form of execution, an easy and satisfactory conduction of the locking ring over the vertical pipe is obtained. At the same time, the locking tabs are protected by the locking ring against harmful external effects, which benefits reliable, long-lasting operation.
    In the sense of a simple construction, with high functional reliability, it is preferable that the locking tabs have a respective eccentric that protrudes radially from the locking direction and that, when fitting the filter insert on the vertical tube, the unlocking means engage with the cams and pivot the locking tabs radially in the unlocking direction.
    In order to avoid that by chance or through conscious manipulation, the locking tabs are arched or even broken in the locking direction, it is proposed that each locking tongue be associated with a stop that limits its movement in the locking direction.
    In order to obtain a construction that is as simple and reliable as possible also in relation to the unlocking means, the unlocking means are preferably formed by ribs protruding radially in the direction of unlocking the locking tabs. When inserting the filter insert into the filter box, these ribs are responsible for pivoting the locking tabs, in order to release a displacement of the locking ring inward on the vertical tube and, thus, introduce the filter insert completely in the filter housing and can cause the seal and the corresponding sealing surface to hold on to each other.
    An alternative configuration of the filter according to the invention with regard to the locking device proposes that the locking device is formed by guide means arranged on the outer circumference of the vertical tube and on the inner circumference of the locking ring, which together form a locking step and an axial or inclined guide that follows it displaced in the peripheral direction; that the guide means, by means of the locking step, lock the locking ring in its pushed-out position against an axial inward displacement with respect to the vertical tube, and that when inserting the filter insert over the vertical tube , the locking ring can rotate to an unlock position in the circumferential direction by means of the unlocking means and can then be pushed inward along the axial or inclined guide. Also in this form of execution of the locking device, its elements are designed integrally with the vertical tube and with the locking ring, in such a way that in this case also separate parts are not necessary for this. In this case too, a locking ring can only be desirably released if, when installing the filter insert, the unlocking means necessary for unlocking the locking device are present in the appropriate design and arrangement.
    In a concrete form of development, it is preferable that, in the inner circumference of the filter insert and in the outer circumference of the locking ring, one or more cooperating inclined planes are arranged in such a way that when an axial displacement occurs of the filter insert, the locking ring is placed in a limited rotation. The cooperative inclined planes provided here are a simple and reliable means for generating the desired limited rotary movement of the locking ring, for the purpose of unlocking.
    In order to obtain a favorable arrangement constructively, the inclined planes on the side of the filter insert are preferably arranged on the inner circumference of the central gap in the front disc.
    In order to obtain a simple and, at the same time, functionally favorable arrangement for the guiding means cooperating in the vertical tube and in the locking ring, it is proposed that the guiding means arranged on the outer circumference of the vertical tube be formed by at least at least one protruding bar that forms a guide profile, and that the guide means disposed on the inner circumference of the locking ring are formed by at least one guide nose projecting into the guide profile. In this way, the guide nose can then move within the guide profile, but cannot be moved beyond the guide profile formed by the protruding bar. Both the guide profile formed by the protruding bar and the guide nose can be advantageously designed, forming a single piece with the corresponding corresponding component.
    To ensure that, when removing the filter insert from the filter box, the locking ring safely assumes a locking position, it is proposed that the guide means arranged on the outer circumference of the vertical tube have a guide chamfer that forcibly drives the locking ring to its locking position during its push-out movement.
    For all forms of filter execution described above, the external circumference of the vertical tube is preferably provided with positioning guide means that cooperate with the unlocking means or with guide means additionally arranged on the inner circumference of the filter insert , positioning guide means which, when fitting the filter insert, forcibly guide the release means in the circumferential direction to a position suitable for engagement with the vertical tube locking tabs or the inclined planes of the ring and then lock the filter insert against twisting in the circumferential direction. With this, even without special attention from the user and without the need for an exact manual positioning of the filter insert and the locking ring in relation to each other, the correct installation position for the mentioned parts is produced. With this, in the case of the form of execution of the filter with unlocking to be performed through a limited twisting of the locking ring, the user does not need to pay attention that the embedded filter part, when inserted in the filter box, does not execute it rotation in the circumferential direction itself.
    Another contribution to the economical manufacture of the filter is that, preferably, the force that preloads the locking ring in the direction of pushing out is generated by at least one pressure spring, which is disposed externally on the vertical tube. and which is supported, on the one hand, on the vertical tube or filter box and, on the other hand, on the locking ring. In the simplest case, the pressure spring can be a helical spring that surrounds the vertical tube.
    The invention also generates the possibility that, for the formation of a coded key-lock system, differently designed locking devices and differently designed unlocking means are provided, and a certain form of execution of the locking device can only be unlocked by means of a certain appropriate form of execution of the unlocking means. This can help to prevent the installation of inappropriate filter insert parts in the filter housing.
    Many filters have a filter bypass valve, which allows liquid to flow directly from the raw side to the clean side of the filter, bypassing the filter material body when the filter material body is clogged due to dirt particles. A particularly favorable integration of a filter bypass valve of this type in the filter according to the invention is achieved when in a form of development according to the invention it is proposed that, for the formation of a filter bypass valve, a disc front of the filter insert has a valve seat for a valve body on the side of the filter box, preloaded with a force acting in the valve closing direction. Advantageously, in this case, for the implementation of the filter bypass valve, no additional valve seat component is necessary, because the valve seat is provided on the front disc of the filter insert.
    In many cases, during filtering it is desirable that, as part of filter maintenance, it is possible to empty the filter box before the filter insert is removed from the filter box. For this purpose, in the filter insert according to the invention, it is provided that the filter box, at its bottom, has an eccentrically disposed emptying channel; that the filter insert, on the face facing the filter material body, of the front disc facing the bottom, has an eccentric closing mandrel, protruding axially, for the emptying channel, and that in the internal circumference of the part built-in filter and on the external circumference of the vertical tube, cooperative positioning guide means are provided, which, when fitting the filter insert on the vertical tube, forcibly guide the filter insert in the circumferential direction to a mandrel position closure suitable for coupling to the emptying channel. In this form of filter execution, on the one hand, when inserting the filter insert, the emptying channel at the bottom of the filter box is closed securely because it is ensured that the closing chuck is positioned properly in relation to the channel emptying. In this case, the positioning guide means mentioned for the closing mandrel can be separate means or also, preferably, they can be formed by the positioning guide means already provided for the positioning, suitable for engagement, of the unlocking means in relation to to the locking device. When the cover of the filter box is removed during maintenance and the filter insert is moved enough to remove the closing mandrel out of the drain channel, then the liquid located in the filter box and in the embedded filter part will flow through the drain channel. As a result, a filter insert that is largely free of liquid can be removed from the filter housing. In this case, as is already known in itself, the filter insert may be engaged with the cover, so that, when removing the filter box cover, an axial pulling force is transmitted to the filter insert, force it moves the filter insert together with the cover in the direction of removal.
    The filter described above can either be a standing filter, 10 in which the filter insert can be removed from above, or a suspended filter, in which the filter insert can be removed from below.
    In addition to the locking ring described above, as well as the corresponding locking device and the corresponding unlocking means 15, the filter according to the invention may have yet another locking device to increase security against the use of foreign filter insert and unsuitable, with this other locking device having an end piece moved displacably on the vertical tube and locking tabs that form part of the vertical tube or end piece and which are movable in the radial direction, each with a surface locking point pointed in the axial direction, the locking tabs being pre-loaded by a force acting in the locking direction and, with their respective locking surfaces, lock the end piece in its pushed-out position against axial displacement inward in relation to the vertical tube, and using the unlocking means, the lock are movable directly in the radial direction in its unlocked position. In this way, double safety is achieved when particularly high demands are placed on safety against the installation of inappropriate filter insert parts in the filter box.
    Finally, the invention also relates to a filter insert for use in a filter according to one of claims 1 to 24, the filter insert being made up of a cylindrical filter material body hollow and by two frontal discs that grab this by the front face, one of which frontal discs has a central gap, and the filter insert with the front disc with a gap in front is fitted over a central vertical tube that forms a part of the filter box, and provided that unlocking means are provided with the filter insert, which, when the filter insert fits over the vertical tube, activates a locking device in the unlocking direction and releases a lock complete of the filter insert. The filter insert is characterized by the fact that the unlocking means are arranged or molded in the filter insert. As a result, it is possible to install only one specific filter insert in a given filter, and separate unlocking means are not required.
    Advantageous configurations and forms of development of the filter insert can be deduced from claims 26 to 32.
    In the following, examples of carrying out the invention will be explained in detail based on a drawing. The figures in the drawing show:
    Figure 1: a filter in a first form of execution, with an open filter box and without embedded filter part, in longitudinal section;
    Figure 2: the filter of figure 2 with a partially inserted filter insert and with a cover, in longitudinal section;
    Figure 3: the filter of figures 1 and 2, with the filter insert more inserted, in longitudinal section;
    Figure 4: the filter of figures 1-3 with the filter insert fully inserted and with the lid placed, in longitudinal section;
    Figure 5: a vertical filter tube according to figures 1 to 4, as an individual piece, in perspective;
    Figure 6: a filter locking ring according to figures 1 to 4 as an individual piece, in perspective;
    Figure 7: a built-in filter piece of the filter according to figures 1 to 4 as an individual piece, in perspective;
    Figure 8: a filter in a second form of execution, in a longitudinal section through the lower region of the filter, without a built-in filter;
    Figure 9: the filter of figure 8 with a built-in filter piece, in a first longitudinal section;
    Figure 10: the filter of Figure 9 in a second longitudinal section;
    Figure 11: the filter of figures 8 to 10, with an improper filter insert, in longitudinal section;
    Figure 12: the bottom of a vertical filter tube in figures 8 to 11, as an individual piece in perspective;
    Figure 13: a lockable ring that can be moved with the vertical tube of Figure 12, as an individual piece and in perspective;
    Figure 14: the bottom part of an embedded filter piece with integrated unlocking means, in perspective;
    Figure 15: the filter in a third form of execution, in a longitudinal section through the lower region of the filter, with a filter insert partially inserted, in longitudinal section;
    Figure 16: the filter of figure 15 with a filter insert even more inserted, in longitudinal section;
    Figure 17: the filter of figures 15 and 16 with a filter insert even more inserted, in longitudinal section;
    Figure 18: the filter of figures 15 to 17, with a built-in filter piece again further inserted, in longitudinal section;
    Figure 19: the filter of figures 15 to 18 with a built-in filter piece again further inserted, in longitudinal section;
    Figure 20: the filter of figures 15 to 19, with a filter insert fully inserted, in a first longitudinal section;
    Figure 21: the filter of figure 20 in a second longitudinal section;
    Figure 22: the filter of figures 20 and 21 in a third longitudinal section;
    Figure 23: the filter of figures 15 to 22, with a strange and inappropriate filter insert, in longitudinal section;
    Figure 24: a built-in filter piece suitable for the filter of figures 15 to 22, in perspective from below obliquely.
    Figure 1 shows a filter 1 in a first embodiment, with a filter box 2 open and without a filter insert, in the longitudinal section. The filter box 2 is cup-shaped with a bottom 25, in the center of which is a hollow cylindrical bottom piece 25 'which continues downwards. The inner circumference of that bottom part 25 'forms a sealing surface 26 for a seal 36 of a filter insert 3 which, in this case, is not yet installed. At its upper end, box 2 has a thread 22 for screwing with a cap 21 which in this case has been removed. Centrally, inside the filter box 2, a vertical tube 4 is arranged, which, at its lower end, is connected with the filter box 2 and extends upwards to about half the height of the filter box. filter 2.
    On the vertical tube 4, a locking ring 5 is guided in a limited displaceable manner in the axial direction. In the direction of pushing outwards pointed upwards, the locking ring 5 is preloaded by the force of a spring 44, which, by its lower end, is supported by a spring support 44 'in the bottom part hollow cylindrical 24 'and, at its end, is supported by a spring support 54 in the locking ring 5. With this, in figure 1, the locking ring 5 is in its pushed out position due to the action of the spring 44. In this pushed-out position, an upper edge 51 of the locking ring 5 abuts a stop formed in the vertical tube 4, which stop here is in the form of an eccentric 43.
    The vertical tube 4 has a locking device 40, by means of which the locking ring 5 can be locked in its pushed out position. The locking device 40 here comprises two malleable locking tabs 41, which extend in an axial direction and are designed to form a single piece with the vertical tube 4. Respectively close to the lower end of each locking tab 41, it presents respectively, on its external face, a locking surface 41 'pointing upwards in the axial direction, which is located directly below a lower edge 51' of the locking ring 5. With this, the locking ring 5 is prevented from being inserted for low.
    Figure 2 shows the filter 1 of figure 1 with a filter insert 3 partially inserted and with a cap 21, in longitudinal section. The filter insert 3 consists of a body of hollow cylindrical filter material 30, such as, for example, a zigzag folded filter paper, which is gripped frontally by a lower front disc 31 and a front disc top 32. Inside the filter material body 30, a hollow cylindrical support grid 30 'is arranged to support it against collapse during operation. The lower front disc 31 is projected slotted in its center and is fitted over the vertical tube 4. From the bottom face, starting from the lower front disc 31, an annular extension 35 extends downwards, on whose lower end is installed a seal 36, which here is a radial seal ring. In order to be able to install the filter insert 3, it has an unlocking means, not visible here, by means of which the locking device 40 can be unlocked. In order to move the unlocking means to a position suitable for engaging the locking tabs 41, on the outer circumference of the vertical tube 4 and on the inner circumference of the lower front disc 31, cooperating positioning guide means 48 and 38 are arranged. guide the filter insert 3 in the circumferential direction to a position, in which the unlocking means are positioned in relation to the locking tabs 41. The unlocking means then cooperate with cam 43 on the locking tabs 41 to pivot the locking tabs 41 inwardly in the radial direction and thereby unlocking the locking device 40.
    In the upper part of figure 2 it is also possible to identify the cover 21 of the filter box 2, which cover, on its lower edge, also has a thread 22 for screwing with the filter box 2. By means of a seal 23, the filter box 2 and the lid 21 are then sealed against each other against liquids.
    Figure 3 shows the filter 1 of figures 1 and 2, with the filter insert 3 more inserted, again in longitudinal section. Radially from the inside, in the lower front disc 31 of the filter insert 3, the unlocking means 33 in the form of ribs can be identified here, which, in the state shown in figure 3, cooperate with the cam of the locking tabs 41 for unlocking. The locking tab 41 is then in its released position, pivoted radially inwards, in which the locking surfaces 41 'are located radially from the inside in relation to the lower edge 51' of the locking ring 5. With this releases a downward movement of the locking ring 5 against the force of the spring 44.
    Figure 4 shows the filter 1 of figures 1 to 3, with the filter insert 3 fully inserted and with the cover 21 placed, again in longitudinal section. The unlocking means 33 are then moved downwards beyond the locking tabs 41, which causes the malleable locking tabs 41 to be returned to their initial position. The lower front disc 31 of the filter insert 3 is then located a short distance above the bottom 25 of the filter housing 2. The hollow cylindrical bottom part 25 'and the bottom of the vertical tube 4 form a annular slot 28, into which the locking ring 5 is pushed and which, below the locking ring 5, also houses the spring 44. In addition, the annular extension 35, which departs from the lower face of the lower front disc 31 and which supports the seal 46, protrudes above the locking ring 5 into the annular slot 28, causing the seal 36 to then be placed in a sealing contact next to the seal surface 26. Thus, a face crude 10 of filter 1 is separated from a clean face 11 by sealing it with liquids and the filter is ready to work. During operation, a fluid to be filtered flows through an inlet, not shown, to the gross face 10 of the filter 1; travels through the filter material body 30 in the radial direction from the outside to the inside and then leaves the filter 1 through a fluid flow channel 42 formed in the hollow interior of the vertical tube 4. The support grid 30 'thus protects , the filter material body 30 against a collapse in the radial inward direction.
    At the very top of figure 4, it can be seen that the filter insert 3, on the upper face of its upper front disk 32, has protruding latches 34, which are engaged with latches 24, properly arranged, on the bottom face of the lid 21. Through this engagement, an axial pulling force can be exerted by the lid 21 for the filter insert 3, when the lid 21 is unscrewed from the filter housing 2. Thus, the lid 21 drag the filter insert 3 with it.
    Figure 5 of the drawing shows a vertical tube 4 of filter 1 according to figures 1 to 4, as an individual piece in perspective. The vertical tube 4 has a basic hollow cylindrical shape. By means of its lower end 46, the vertical tube 4 can be connected with the filter box 2, such as, for example, screwed or engaged. In its upper part, the vertical tube 4 has two locking tabs 41, opposite each other, with their respective locking surfaces 41 'for the formation of the locking device 40.
    On the outer circumference of the vertical tube 4, guide profiles 45 are formed, which serve to bring the unlocking means 33 provided for in the filter insert 3 to a torque position suitable for engaging the locking tabs 41 and their cams 43. At the same time, the guide profiles 45, at the bottom, serve to protect against twisting of the locking ring 5. Through the interior of the vertical tube 4, the liquid flow channel 42 extends. Finally, at the very bottom in the vertical tube 4 a spring support 44 'for the spring 44 is still visible.
    Figure 6 shows the locking ring 5 of the filter 1 according to figures 1 to 4 as an individual piece, in perspective. The locking ring 5 has a surrounding upper edge 51 and a surrounding lower edge 51 ', as well as several radially internal guide noses 55, which cooperate with the aforementioned guide profile 45, in the vertical tube 4, when the ring block 5 is seated on the vertical tube 4.
    Figure 7 shows an embedded filter part 3 of filter 1 according to figures 1 to 4 as an individual part, in perspective. Below and above the two front discs 31 and 32 are visible, between which the filter material body 30 is disposed. The lower front disc 31 has a gap 31 'centrally, through which it can be fitted over the tube vertical 4. From the lower front disc 31, the annular extension 35 surrounding the breach 31 'extends downwards, which, at its lower end, supports the seal 36 pointed radially outwards. In the inner circumference of the ring extension 35, the unlocking means 33 are visible, which serve to release the locking device 40, specifically to pivot the locking tabs 41 in the direction of release radially inward, when the filter insert 3 is fitted over the vertical tube 4.
    In the execution example described above, the locking device 40 comprises several malleable locking tabs 41. In the following, implementation examples will be described, where the locking device 40 is realized differently.
    Figure 8 shows a filter 1 in a second embodiment, in a longitudinal section through the lower region of filter 1, which still has no filter insert. From the outside, a pate of the filter box 2 with the bottom 25 can be identified. In the center of the bottom 25 is the hollow cylindrical bottom piece 25 ', whose inner circumference forms the sealing surface 26.
    The vertical tube 4 is arranged in the center of the box 2. On the vertical tube 4, the locking ring 5 is arranged in an axial direction. In addition, in this case, the locking ring 5 can be rotated to a limited extent also in the circumferential direction in relation to the vertical tube 4. Also here, the locking ring 5 is preloaded with a force acting in its direction of pushing towards outside, that is, upwards, according to figure 8, this force is also generated here by a helical spring 44. Since in figure 8 no embedded filter part is inserted in box 2, then the spring 44 ensures that the ring locking position 5 assume its pushed out position. Furthermore, in that position pushed out of the locking ring 5, it is locked against an inward push in the axial direction, that is, downwards, according to figure 8. This is achieved through a guide profile 45 that forms a part of the locking device 40 on the outer circumference of the vertical tube. The guide profile 45 has a locking step 45 'directed upwards, which, in the state according to figure 8, is located, in the axial direction, exactly below a guide nose 55 on the inner circumference of the locking ring 5. When a force acting from top to bottom only in the axial direction is exerted on the locking ring 5, the guide nose 55 of this will reach the locking step 45 ', preventing another axial displacement.
    In order to release the locking device 40, the locking ring 5 must also perform a rotating movement, in addition to its axial downward movement, so that the guide nose 55 can be moved past the locking step 45 '. For this purpose, on the outer circumference of the locking ring 5, several inclined planes 59 are molded, one of which is visible in figure 8. The inclined planes 59 cooperate with inclined planes 39 in the filter insert 3 (compare with figure 14) , when the filter insert 3 is seated on the vertical tube 4, and ensure that the axial movement of the filter insert 3 generates a limited rotation movement of the locking ring 5 in the unlocking direction. The guide nose 55 then reaches, within the guide profile 45, to a position in which it is displaced in the circumferential direction in relation to the locking step 45 ', and after that another movement of the locking ring 5 is released in the axial direction down.
    Figure 9 shows the filter 1 of figure 8 with a filter insert 3 fully installed, in a first longitudinal cut, which is located before the central axis of the filter box 2. The locking ring 5 is then in its the inserted position and the guide nose 55 of the locking ring 5 are then in an axially position below the locking step 45 ', as well as being displaced in the circumferential direction in relation to the locking step 45'. The spring 44 is then compressed and is maintained in this state through the locking ring 5 by means of the filter insert 3. An upward movement of the filter insert 3 is prevented by a cover 21, not shown here, sitting on box 2.
    The annular extension 35 on the lower face of the lower front disc 31, together with the seal 36 carried by it, projects into the hollow cylindrical bottom piece 25 'of the bottom 25 of the filter box 2 and the seal 36 then contacts the sealing surface 26 in the form of a sealed contact.
    Figure 10 shows the filter 1 of figure 9 in a second longitudinal section, which extends through the central axis of the filter box 2. Here, too, it can be seen that now the locking ring 5 and the spring 44, under these are located in the annular slot 28 between the hollow cylindrical bottom part 24 'and the bottom of the vertical tube 4. Also here it is possible to observe that the annular extension 35 of the lower front disc 31 with the seal 36 engages in the annular slot 28 , making the seal 36 in sealed contact with the sealing surface 26.
    Radially inside the locking ring 5, its guide noses 55 are visible, which are guided in the guide profile 45 on the outer circumference of the vertical tube 4.
    Figure 11 shows the filter 1 of figures 8 to 10 with an improper filter insert 3 ', in longitudinal section. The strange filter insert 3 'differs from the filter insert 3 in that it does not have the unlocking means 33 necessary for the release of the locking device 40. This means that when inserting the filter insert 3 'in the filter housing 2, the lower front disc 31 can only move the locking ring 5 in a merely axial way downwards, until the guide nose 55 of the locking ring 5 reaches the locking step 45' of the guide profile 45 on the outer circumference of the vertical tube 4. It will no longer be possible, then, to insert the filter insert 3 'further into the filter box 2. A liquid-sealed separation will not be obtained on a rough side and a clean side of the filter box 2. It is also excluded to place the cover 21 in the filter box 2, because the filter insert 3 ', on the top side, protrudes too far out of the filter box 2.
    Figure 12 shows, in an enlarged scale, the lower part of the vertical tube 4 of the filter 1 of figures 8 to 11, as an individual piece in perspective. Through the hollow interior of the vertical tube 4, the liquid flow channel 42 extends. On the outer circumference of the vertical tube 4, two guide profiles 45 are arranged opposite each other as part of a device locking means 40 and, on the other hand, the positioning guide means 48, between them in the circumferential direction, also in pair and opposite to each other, here molded in one piece. As already explained above, the guide profile 45 comprises the locking step 45 'and also the guide chamfer 45 ", which serves to bring the locking ring 5 back to its locking position on its return to the direction of pushing out, position in which its guide nose 55 is located axially just above the locking step 45 '. The lower end 46 of the vertical tube 4 serves for connection to the filter box 2.
    Figure 13 shows a locking ring 5 which can be moved with the vertical tube 4 of Figure 12, as an individual piece in perspective. The locking ring 5 has the basic shape of a low hollow cylinder and has, radially outwardly, the protruding spring support 54, on which the bottom 44 is supported by the spring 44 in the assembled state of the filter 1.
    Facing the observer, in figure 13 is the upper edge surrounding 51 of the locking ring 5, on which are formed several inclined planes 59, which here are four in total. These inclined planes 59 serve to cooperate with the inclined planes 39, mentioned above, in the filter insert 3. In the inner circumference of the locking ring 5 are molded, protruding radially inward, the two guide noses 55 opposite each other , which serve for cooperation with the guide profile 45 on the vertical tube 4.
    Figure 14 shows the bottom part of a filter insert 3 in perspective tilted from below. The lower front disc 31 closes the filter material body 30 on its lower front face. In the center of the front disc 31 is located the gap 31 ', which is surrounded by the annular extension 35. At its lower axial end, the extension 35 supports the seal 36 pointed radially outwards.
    In the inner circumference of the extension 35, on the one hand, the positioning guide means 38 are used for cooperation with the positioning guide means 48 on the vertical tube 4 and, on the other hand, the inclined planes 39 which serve for cooperation with the inclined planes 59 on the locking ring 5.
    Figures 15 to 24 show the filter 1 in a third embodiment, for which it is characteristic that the filter box 2 additionally has an emptying channel 27, which is arranged in an eccentric position on the bottom 25 of the housing 2. The emptying channel 27 serves to clear a path for emptying the filter housing 2 from the fluid when removing the filter insert 3, so that it is possible to remove from the filter housing 2 a built-in filter part 3 that is as fluid-free as possible. In this case, it is necessary that during the operation of the filter 1, the drainage channel 27 is closed.
    Figure 15 shows the filter 1 in a third embodiment, in a longitudinal section through the lower region of the filter 1, with a filter insert 3 still partially inserted, in longitudinal section. The external limitation of the filter insert 1 forms, once again, the cup-shaped filter box 2 with the bottom 25 and its hollow cylindrical bottom part 25 '. Centrally on the filter box 2, the vertical tube 4 is again arranged, which at its lower end 46 is connected with the filter box 2.
    Once again on the lower part of the vertical tube 4, the locking ring 5, which, as well as the corresponding locking device 40, corresponds to the execution example described above. Under the locking ring 5 there is again the spring 44, which in this case is also designed as a helical pressure spring.
    In the upper part of figure 15, the lower part of the filter insert 3 is visible at the beginning of its introduction in the filter box 2. Also in this case, the filter insert 3 has a filter material body 30, whose front face the lower one is covered by the front disc 31. From the front disc 31 the annular extension 35 extends concentrically with the seal 36 pointed radially outwards.
    The positioning guide 48 extends over the outer circumference of the vertical tube 4, in the form of a spiral that initially extends in an inclined way, looking from top to bottom, which then continues further down in an axial path. The positioning guide 38 on the filter insert 3 cooperates as positioning guide 48, as the positioning guide 38 slides longitudinally over the positioning guide 48. Due to the spiral shape from the upper part of the positioning guide 48, the filter insert 3 is rotated at the same time in the circumferential direction in its downward movement, which serves to bring the filter insert 3 to a desired twisted position in relation to the filter box 2 and in relation to the drain channel 27, before the filter insert 3 reaches its final installation position.
    Figure 16 shows the filter 1 of figure 15 with the filter insert 3 more inserted, in another longitudinal section rotated in relation to figure 15. The section then extends so that the positioning guide means 48, arranged on the outer circumference of the vertical tube 4, face the observer. Between the positioning guide means 48 is the positioning guide means 38 of the filter insert 3. As before, the locking ring 5 is in its pushed-out position, as the lower front disc 31 of the filter insert 3 still has a distance from the locking ring 5. On the outer circumference of the locking ring 5, one of its inclined planes 59 is visible, which, when inserting the filter insert 3 further into the below, cooperate with the inclined planes 39 not visible here, on the internal circumference of the frontal disc 31.
    Figure 17 shows the filter 1 of figures 15 and 16, with the filter insert 3 even more inserted, again in longitudinal section, with the cutting plane parallel to the cutting plane of figure 16. The filter insert 3, with its lower front disc 31, is then found immediately before a contact with the locking ring 5, which is still in its pushed-out position. The positioning guide 38 in the filter insert 3 is located between the axially running sections of the positioning guide means 48, which, further down, decrease its distance to produce the final positioning of the filter insert 3.
    Figure 18 shows, again in longitudinal section, the filter of figures 15 to 17 with the filter insert 3 even more inserted, and the cut was made in such a way that the guide profile 45 on the outer circumference of the vertical tube 4 faces the viewer and that the cut extends through the emptying channel 27.
    The filter insert 3 is then moved downwards over the vertical tube 4 in such a way that the lower front disc 31 is engaged with the locking ring 5. Due to the inclined planes 39 and 59 cooperating, not visible in figure 18, the locking device 40 is unlocked by a certain twist of the locking ring 5 in relation to the vertical tube 4. In this unlocked state, the guide nose 55 of the locking ring 5 is displaced in the circumferential direction in in relation to the locking step 45 'of the guide profile 45. With this, the locking is suspended and the filter insert 3, together with the locking ring 5 against it, can be moved lower against the force of the spring 44, this downward movement also preferably taking place by screwing a cap 21 onto the filter housing 2.
    On the right in figure 18, on the lower face of the front disk 31, the closing mandrel 37 is visible, which forms a single piece with it and which has now reached its position suitable for engagement with the emptying channel 27 due to conduction by means of positioning guide means 38 and 48. Now, twisting the filter insert 3 with the closing mandrel 37 in relation to the drain channel 27 is no longer possible due to the conduction of the filter insert 3 by means of positioning guide means 38 and 48, which are not visible in figure 18.
    Figure 19 shows the filter 1 of figures 15 to 18 with the filter insert 3 even more inserted, in a longitudinal section that was made in such a way that, now, again, the positioning guide means 48 on the circumference vertical tube 4 face the viewer. Due to the continued axial displacement of the filter insert 3 downwards, its positioning half-guide 38 then reached that region of the positioning half-guides 48 in which they extend in axial direction with a smaller distance, looking in the circumferential direction. In this case, the distance between the positioning guide means 48 is so small that the positioning guide means 38 of the filter insert 3 conducted there still has sufficient movement clearance. At the same time, the locking ring 5 is moved further downward against the force of the spring 44, through the filter insert 3, moved further down, over the vertical tube 4.
    Figure 20 shows the filter 1 of figures 15 to 19 with the filter insert 3 fully inserted, in another longitudinal section located in the cutting plane of figure 19. The locking ring 5 then engages the bottom part hollow cylindrical 24 ', as well as the annular extension 35 with the sealing ring 36. The positioning guide half 38 of the filter insert 3 is then located at the lower end of the positioning guide half 48. With this , after fitting the cap 21, the filter 1 is ready to start operation.
    Figure 21 shows the filter 1 of figure 20 in a second longitudinal section, rotated by 90 °. In this case, the eye falls again on the region of the outer circumference of the vertical tube 4 with the locking device 40 and as a corresponding guide profile 45. The guide nose 55 of the locking ring 5 is then moved in the direction circumferential and in the axial direction in relation to the locking step 45 ', which has the same importance as the unlocking position of the locking device 40. The locking mandrel 37 is then located hermetically in the upper terminal region of the lock channel. emptying 27, making it so that no more fluid can flow out of the interior of the filter box 2 into the channel and emptying 27.
    In figure 22, the filter 1 of figures 20 and 21 is shown in a third longitudinal section moved forward parallel to the previous longitudinal section, such that the cutting plane now runs through each of the inclined planes 39 and 59 in the filter insert 3 and the locking ring 5. The inclined planes 39 and 59 are then fully engaged with each other, which means that the filter insert 3, now fully inserted into the box 2, due to its axial movement, rotated the locking ring 5 in the circumferential direction, at a certain angle that is sufficient for the release of the locking device 40. The emptying channel 27, with the closing mandrel 37 located there hermetically, it is then located on the right and bottom in figure 22, behind the cutting plane.
    Figure 23 shows the filter 1 of figures 15 to 22, with a strange filter insert 3 'not suitable, in a longitudinal section that is designed in such a way that the outer circumference of the vertical tube 4 with the locking device 40 face the observer. The strange filter insert 3 ', by means of its lower front disc 31, presses the locking ring 5 through its upper edge 51 in the downward axial direction, although another downward movement is blocked, because after a short section of movement the guide nose 55 of the locking ring 5 reaches the locking step 45 'of the guide profile 45, since the strange filter insert 3' shown here does not have the necessary means to unlock the device locking 40, especially not the necessary inclined planes 39. Thus, in this case, no force pointed in the circumferential direction acts on the inclined planes 59 of the locking ring 5, which causes the locking ring 5 to retain its locking position. Since the foreign filter insert 3 'cannot be fully inserted into box 2, then no separation between the raw side and the clean side is achieved, and the cover of box 2 cannot be fitted. Finally, the closing mandrel for the emptying channel 37 is also missing in the case of the foreign filter insert 3 ', so that filter 1 cannot be placed ready for operation.
    Finally, figure 24 shows a filter insert 3 suitable for filter 1 in figures 15 to 22, in a slanted perspective below, in which case only the bottom part of filter insert 3 is shown. it can be seen that the filter material body 30 is covered below by the lower front disc 31, which, in addition, is identical to the front disc 31 of figure 14. Additionally, the front disc 31 of figure 24 has the closing mandrel 37 eccentrically arranged, which, in this case, is designed to form a single piece with the front disc 31. The sealing effect can be optimized through a sealing ring apart from an elastomer or rubber, seated on the closing mandrel 37 List of Reference Numbers 1 filter 10 raw side 11 clean side 2 filter box 21 cover 22 screw 23 seal on 22 24 latches on 21 25 bottom of 2 25 'hollow cylindrical bottom piece 26 sealing surface on 25' 27 emptying channel 28 fe ring nda 29 filter insert 30 strange filter insert 31 filter material body 30 'support grid at 30 32 first front disc (bottom) 31' gap at 31 33 second front disc (top) 33 unlocking means ( ribs) 34 engagement tabs in 32 35 annular extension 31 36 seal in 35 37 closing mandrel for 27 38 half positioning guide in 3 39 inclined planes in 31 4 vertical tube 40 locking device 41 locking tabs 41 ' lock 42 fluid flow channel in 4 43 eccentric in 41 44 spring 44 'spring support 45 guide profile for 5 45' locking step 45 "guide bevel 46 lower end of 4 48 positioning half-guide in 4 5 locking ring 51 upper edge 51 'lower edge 54 spring support 55 guide nose in 5 59 inclined planes in 5
    权利要求:
    Claims (31)
    [0001]
    1. Filter (1) for a fluid medium, especially oil filter, water filter, fuel filter or air filter of an internal combustion engine, with a filter box (2) and a cover (21) that can be connected to it removably, with a replaceable filter insert (3), which consists of a hollow cylindrical filter material body (30) and two front discs (31, 32) that grip this side front, one of which front discs (31) has a central gap (31 '), and the filter insert (3) with the front disc (31) with a gap can be fitted first over a central vertical tube (4) that forms a part of the filter box (2), with a locking ring (5) on the vertical tube (4) axially displaceable, the locking ring (5) being pre -loaded with a force that acts in the direction of pushing outwards towards the free end of the vertical tube (4), the locking ring being (5), in a pushed-out position, it is blocked by means of a locking device (40) against an inward displacement, and unlocking means (33) are provided guided from the embedded part of filter (3), which, when the filter insert (3) is pushed out onto the vertical tube (4), activate the locking device (40) in the unlocking direction and release a push of the locking ring (5) and the filter insert (3) inward, and in the installed state of the filter insert (3) in the filter housing (2), a seal (36) provided on the front disc (31) or in the locking ring (5), in cooperation with a sealing surface (26) of the filter housing (2), separates a rough side (10) and a clean side (11) of the filter (1) from each other, characterized by the fact that when the locking ring (5) is in the pushed out position and when the filter insert (3) is axially abutted in ring d and lock (5), the seal (36), provided on the front disc (31) of the filter insert (3) or on the locking ring (5), will be kept axially away, in the direction pushed out, from the corresponding surface seal (26) of the filter box (2) and will be held by the locking device (40) in the non-sealing position away from the sealing surface (26), and with the filter insert (3) or the lock (5) in the pushed-in position, with the locking device (40) unlocked, the sealing surface (26) and the seal (36) cooperate in a sealing manner.
    [0002]
    2. Filter according to claim 1, characterized by the fact that the filter box (2) has a bottom (25) with a hollow cylindrical central bottom piece (25 '), and that the sealing surface (26) on the side of the filter box it is arranged on an internal circumferential surface or on an external circumferential surface or a front surface of the hollow cylindrical bottom part (25 ').
    [0003]
    3. Filter according to claim 2, characterized in that the hollow cylindrical bottom part (25 ') and a lower part of the vertical tube (4) delimit an annular slot (28), which houses the locking ring (5) less by a part of its height, in its position pushed inwards.
    [0004]
    4. Filter according to claim 2 or 3, characterized by the fact that the front disc (31), showing the breach (31 '), of the built-in filter part (3), on its back side towards the body of filter material (30), has a central annular extension (35), which surrounds the breach (31 ') and supports the seal (36).
    [0005]
    5. Filter according to claims 3 and 4, characterized by the fact that in the condition of the filter insert (3) installed in the filter box (2), the extension (35) with the seal (36) engages in the slot ring (28).
    [0006]
    6. Filter according to one of claims 1 to 5, characterized in that the unlocking means (33) are arranged or molded in the filter insert (3) or in an unlocking medium body to the part that can be fitted over the vertical tube (4).
    [0007]
    7. Filter according to claim 6, characterized by the fact that the unlocking means (33) are arranged or molded on the front disc (31), which presents the breach (31 '), of the filter insert (3) or in a support body (30 ') which is disposed within the filter material body (30) between the front discs (31, 32) and which forms a part of the filter insert (3).
    [0008]
    8. Filter according to one of claims 1 to 7, characterized by the fact that the locking device (40) is formed by locking latches (41) movable in the radial direction, firmly connected with the vertical tube ( 4) or forming a single piece with it, each with a locking surface (41 ') pointing in the axial direction; that the locking tabs (41) are preloaded with a force acting in the locking direction and, with their respective locking surfaces (41 '), lock the locking ring (5) in its pushed-out position against sliding -in axial inward, and that, by means of the unlocking means (33), the locking tabs (40), when fitting the filter insert (3) on the vertical tube (4), are mobile directly in the direction radial, in its unlocked position.
    [0009]
    9. Filter according to claim 8, characterized in that the locking tabs (4) run in an axial direction.
    [0010]
    10. Filter according to claim 8 or 9, characterized in that the locking tabs (40) are made of a malleable material.
    [0011]
    11. Filter according to one of claims 8 to 10, characterized by the fact that the locking ring (5) is hollow cylindrical and is externally seated on the vertical tube (4), and that the locking tabs queue (40) are provided on the vertical tube (4) and have, respectively, a blocking nose (41) directed radially outward, and the blocking noses (41) can be made to engage and disengage with a front face the locking ring (5).
    [0012]
    12. Filter according to one of claims 8 to 11, characterized by the fact that the locking tabs (40) have, respectively, an eccentric (42) protruding radially in the locking direction, and that, when if the filter insert (3) fits over the vertical tube (4), the unlocking means (33) engage with the cams (43) and pivot the locking tabs (40) radially in the direction of unlocking.
    [0013]
    13. Fluid filter according to one of claims 8 to 12, characterized in that a stop (40 ') is attached to each locking tongue (40) which limits its movement in the locking direction .
    [0014]
    Filter according to one of claims 8 to 13, characterized by the fact that the unlocking means (33) are formed by ribs protruding radially in the direction of unlocking of the locking tabs (40).
    [0015]
    15. Filter according to one of claims 1 to 7, characterized by the fact that the locking device (40) is formed by guide means (45 and 55) arranged on the outer circumference of the vertical tube (4) and the inner circumference of the locking ring (5), which together form a locking step (45 ') and a subsequent axial or inclined guide which is displaced in a circumferential direction therewith; that the guide means (45 and 55), by means of the locking step (45 '), lock the locking ring (5) in its pushed-out position against an axial inward displacement with respect to the vertical tube (4) , and that, when fitting the filter insert (3) on the vertical tube (4), the locking ring (5) can be rotated by the unlocking means (22) in the circumferential direction to an unlocking position and, then, it can be moved inward along the axial or inclined guide.
    [0016]
    16. Filter according to claim 15, characterized by the fact that the inner circumference of the filter insert (3) and the outer circumference of the locking ring (5) are arranged respectively with one or more cooperating inclined planes (39) , 59), in such a way that, when an axial displacement of the filter insert (3) occurs, the locking ring (5) is placed in a limited rotation.
    [0017]
    17. Filter according to claim 16, characterized by the fact that the inclined planes (39) on the side of the filter insert are arranged in the inner circumference of the central gap (31 ') of the front disc (31).
    [0018]
    18. Filter according to one of claims 15 to 17, characterized in that the guide means (45) arranged on the outer circumference of the vertical tube (4) are formed by at least one protruding bar that forms a guide profile , and that the guide means (55) disposed on the inner circumference of the locking ring (5) are formed by at least one guide nose projecting into the guide profile.
    [0019]
    19. Filter according to claim 18, characterized in that the guide means (45) arranged on the outer circumference of the vertical tube (4) have a guide chamfer (45 ") that forcibly conducts the locking ring (5) to its locked position in its outward movement.
    [0020]
    20. Filter according to one of claims 1 to 19, characterized by the fact that in the outer circumference of the vertical tube (4), cooperating with the unlocking means (33) or with guide means (38) additionally arranged on the internal circumference of the filter insert (3), positioning guide means (48) are provided, which, when fitting the filter insert (3), forcibly guide the unlocking means (33) in the circumferential direction to a position suitable for engagement with the locking tabs (40) of the vertical tube (4) or the inclined planes (59) of the locking ring (5), and then block the filter insert (3 ) against twisting in the circumferential direction.
    [0021]
    21. Filter according to one of claims 1 to 20, characterized by the fact that the force that preloads the locking ring in the direction of pushing it out is generated by at least one pressure spring (44), which is arranged externally on the vertical tube (4) and which, on the one hand, is supported on the vertical tube (4) or on the filter box (2) and, on the other hand, on the locking ring (5).
    [0022]
    22. Filter according to one of claims 1 to 21, characterized by the fact that for the formation of a coded key-lock system, differently designed locking devices (40) and unlocking means (33) are provided. ) designed differently, and a certain way of executing the locking device (40) can only be unlocked by means of a certain way of implementing the unlocking means (33).
    [0023]
    23. Filter according to one of claims 1 to 22, characterized by the fact that for the formation of a filter bypass valve (6), a front disc (31) of the filter insert (3) has a valve seat (63) for a valve body, on the side of the filter box, preloaded with a force acting in the valve closing direction.
    [0024]
    24. Filter according to one of claims 1 to 23, characterized by the fact that the filter box (2), at its bottom (25), has an emptying channel (27) arranged eccentrically; that the filter insert (3) on the face, with its back to the filter material body (30), of the front disc (31) facing the bottom (25) has an eccentric closing mandrel (37) protruding axially for the emptying channel (27), and that in the inner circumference of the filter insert (3) and in the outer circumference of the vertical tube (4) cooperating positioning guide means (38, 48) are provided, which , when fitting the filter insert (3) on the vertical tube (4), they force the filter insert (3) in the circumferential direction to a suitable position of the closing mandrel (37) to the coupling for the emptying channel (27).
    [0025]
    25. Filter insert (3) for use in a filter (1) for a fluid medium, especially oil filter, water filter, fuel filter or air filter of an internal combustion engine, with a filter box (2) and a cover (21) that can be removably connected to it, the filter insert (3) being replaceable with the filter, the filter insert (3) being made up of a body of hollow cylindrical filter material (30) and two front discs (31, 32) that grip the front side, of which a front disc (31) has a central gap (31 '), with the filter insert (3) with the front disc (31) with a gap it can be fitted first on a central vertical tube (4) that forms a part of the filter box (2), and on the vertical tube (4) is guided a ring of lock (5) in an axially displaceable way, the locking ring (5) being preloaded with a force acting in the direction of pushing towards outside pointed at the free end of the vertical tube (4), and the locking ring (5), in a position pushed outwards, is blocked by means of a locking device (40) against an inward displacement, being that release means (33) are provided, guided from the filter insert (3), which, when the filter insert (3) is mounted on the vertical tube (4), activate the locking device (40) in the direction of unlocking and release a complete assembly of the filter insert (3), the unlocking means (33) being arranged or molded in the filter insert (3), and in the installed state of the insert filter (3) in the filter housing (2), a seal (36) provided on the front disc (31) or on the locking ring (5), in cooperation with a sealing surface (26) of the filter housing (2 ), separates a rough side (10) and a clean side (11) of the filter (1) from each other, and when the locking ring (5) is iver in the in-out position and when the filter insert (3) is axially abutted on the locking ring (5), the seal (36), provided on the front disc (31) of the filter insert (3) or in the locking ring (5), it will be kept axially away, in the pushed out direction, from the corresponding sealing surface (26) of the filter box (2) and will be kept by the locking device (40) in the non-sealing position away the sealing surface (26), and with the filter insert (3) and the locking ring (5) in the pushed-in position, with the locking device (40) unlocked, the sealing surface (26) and the seal (36) cooperate in a sealing manner, characterized by the fact that guide means (38) additionally arranged in the filter insert (3) are provided for cooperation with positioning guide means (48) arranged in the ex-ternal circumference of the vertical tube (4), and when fitting the filter insert (3 ) on the vertical tube (4), by means of the positioning guide means (48) the unlocking means (33) are forcibly guided in the circumferential direction to a position suitable for the engagement to release the locking device (40) and then the filter insert (3) is lockable in the circumferential direction against torsion but is additionally pushable in the axial direction, with one or more in the inner circumference of the filter insert (3) inclined planes (39), whereby, when the filter insert (3) is arranged on the vertical tube (4), when the filter insert (3) is pushed further in the axial direction, the the lock is placed in a limited rotation in the unlocking direction, in which at the bottom of the lower front disc (31) in the mounting position of the filter insert (3), an annular extension (35) extends downwards, in whose internal circumference is arranged to seal o (36), and in the internal circumference of the extension (35) of the front disc the positioning guide (38) and the inclined planes (39) are arranged.
    [0026]
    26. Built-in filter part according to claim 25, characterized in that the seal (36) is a radial seal.
    [0027]
    27. Filter insert according to claim 25 or 26, characterized by the fact that the unlocking means (33) are arranged or molded on the front disc (31), presenting the gap (31 '), of the filter insert filter (3) or in a support body (30 ') which is arranged inside the filter material body (30) between the front discs (31, 32) and which forms a part of the filter insert (3) .
    [0028]
    28. Filter insert according to any one of claims 25 to 27, characterized in that for the formation of a filter bypass valve (6), a front disc (31) of the filter insert (3) it has a valve seat (63) for a valve body, on the side of the filter box, preloaded with a force acting in the closing direction of the valve.
    [0029]
    29. Filter insert according to any one of claims 25 to 28, characterized in that the filter insert (3), on the face facing the filter material body (30) of one of its discs front end (31) has an eccentric closing mandrel (37) protruding axially into an emptying channel (27) arranged eccentrically at the bottom (25) of a corresponding filter box (2), and that on the inner circumference of the filter insert (3) the positioning guide means (38) are arranged for cooperation with the positioning guide means (48) provided on the outer circumference of the vertical tube (4), in such a way that, when fitting the embedded part filter (3) on the vertical tube (4), filter insert (3) is forced in the circumferential direction to a position of the closing mandrel (37) that is suitable for engaging the emptying channel (27 ).
    [0030]
    30. Filter insert according to any one of claims 25 to 29, for use in a filter (1), in which the locking device (40) is formed by movable locking tabs in the radial direction (41) connected rigidly or formed in one piece with the vertical tube (4), each with a locking surface (41 ') pointing in the axial direction, and the locking tabs (41) are loaded with a force acting in the locking direction and, respectively, through their locking surface (41 '), lock the locking ring (5) in the pushed out position against an axial inward displacement in relation to the vertical tube (4), characterized by the fact that, through the unlocking means (33) arranged or molded on the filter insert (3), the locking tabs (41) can be displaced directly in the radial direction to their inwardly pushed position when the filter insert (3) is fitted on the vertical tube (4).
    [0031]
    31. Filter insert according to claim 30, characterized in that the unlocking means (33) arranged or formed in the filter insert (3) are formed by ribs protruding radially in the direction of the release of the tongues locking elements (41), which, when inserting the filter insert (3) in the filter housing (2), are responsible for pivoting the locking tabs (41), to release a displacement into the lock (5) on the vertical tube (4).
    类似技术:
    公开号 | 公开日 | 专利标题
    BR112013011011B1|2020-09-15|FILTER FOR A FLUID MEDIA AND FILTER BUILT-IN PIECE
    JP2014502326A5|2016-03-17|
    EP3034147B1|2019-06-19|Oil filter assembly having rotation type drain pin
    JP5603596B2|2014-10-08|tank
    US10456719B2|2019-10-29|Fluid filter with replaceable filter insert
    US8858793B2|2014-10-14|Filter, filter element, fastening housing part of a filter housing and telescopic switching element of a switching device of a releasable detent connection
    US7887701B2|2011-02-15|Fluid filter
    JP6505707B2|2019-04-24|Filter group
    RU2532177C2|2014-10-27|Valve actuation device, liquid tank of liquid treatment device, liquid treatment device and use of liquid treatment device
    JP2006513834A|2006-04-27|Oil filter device
    ES2621832T3|2017-07-05|Liquid filter with an eccentric liquid discharge channel
    BRPI0901923A2|2010-04-13|filter element and filter assembly including locking mechanism
    CN104540569B|2016-05-04|With the liquid filter of central passing away with for the filter core of liquid filter
    JP2011506843A|2011-03-03|Liquid filter, especially oil filter
    US20190262751A1|2019-08-29|Filter System and Filter Element
    JP2006082010A|2006-03-30|Fluid filter
    RU2014136108A|2016-03-27|WASHING PRESSURE DIFFERENCE VALVE
    US20200179844A1|2020-06-11|Liquid filter assembly
    ES2341479T3|2010-06-21|FILTRATION DEVICE.
    US9884274B2|2018-02-06|Filter apparatus
    BR112019018568A2|2020-04-14|filter and removable cartridge that includes a bypass valve
    CN110418675A|2019-11-05|System, fluid filter element including the connector for being connected to fluid filter element and the method for producing the fluid filter element
    CN203770769U|2014-08-13|Safety valve
    BR112014006507B1|2020-11-10|liquid filter
    CN210278479U|2020-04-10|Filter core base and water purification unit
    同族专利:
    公开号 | 公开日
    CN103298536B|2015-11-25|
    EP2635360B1|2018-05-23|
    KR20130112904A|2013-10-14|
    ES2682471T3|2018-09-20|
    DE102010043836A8|2012-07-26|
    BR112013011011A2|2016-08-23|
    CN103298536A|2013-09-11|
    US9044698B2|2015-06-02|
    JP2014502326A|2014-01-30|
    JP5933572B2|2016-06-15|
    EP2635360A1|2013-09-11|
    EP3329979A1|2018-06-06|
    KR101902593B1|2018-09-28|
    WO2012059474A1|2012-05-10|
    DE102010043836A1|2012-05-10|
    US20140366494A1|2014-12-18|
    PL2635360T3|2018-10-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3767054A|1970-06-15|1973-10-23|W R Balston Ltd|A filter tube containing a self-sealing filter tube|
    US4871455A|1986-06-03|1989-10-03|Facet Enterprises, Inc.|Filter assembly with lockable lug means|
    US5203994A|1991-08-16|1993-04-20|Stanadyne Automotive Corp.|Fuel filter retention system|
    DE19700564A1|1997-01-10|1998-07-16|Mann & Hummel Filter|Filters, in particular for the lubricating oil of an internal combustion engine|
    DE29915843U1|1999-09-09|2001-01-25|Hengst Walter Gmbh & Co Kg|Filters with an immediate drain dome|
    DE19951085A1|1999-10-23|2001-04-26|Mahle Filtersysteme Gmbh|Lubricating oil cleaning filter, with ramp on floor of receiving cavity|
    JP4644409B2|1999-12-03|2011-03-02|パーカー−ハニフイン・コーポレーシヨン|Key latch valve for fuel filter|
    JP4141226B2|2002-10-17|2008-08-27|和興フィルタテクノロジー株式会社|Filter device|
    DE202007008483U1|2006-08-25|2008-01-03|Mann+Hummel Gmbh|Functional element for actuating a valve|
    DE102006050946B3|2006-10-28|2007-12-06|Tuchenhagen Dairy Systems Gmbh|Corner tube filter for producing e.g. germ-free consumption milk, has closing unit connected with remote controlled drive by valve rod that is placed through cover, and bellows surrounding valve rod and connected with closing unit|
    DE202006019003U1|2006-12-14|2008-05-21|Mann + Hummel Gmbh|Liquid separators, in particular oil separators for compressed air systems|
    JP5193286B2|2007-04-27|2013-05-08|ドナルドソンカンパニー，インコーポレイティド|Liquid filtration assembly, system, and filtration method|
    US8404029B2|2007-06-14|2013-03-26|Donaldson Company, Inc.|Crankcase ventilation filter arrangments; components; and, methods|
    BRPI0924850B1|2009-04-20|2019-04-30|Parker Hannifin Manufacturing Netherlands B.V.|FILTER ASSEMBLY, FILTER ELEMENT, AND METHODS FOR REMOVING A FILTER ELEMENT FROM A FILTER ASSEMBLY, AND FOR REPLACING THE FILTER ELEMENT|
    DE112012002708T5|2011-06-30|2014-04-03|Donaldson Company, Inc.|Filter systems of a crankcase ventilation; components; Characteristics; and methods of assembly and use|DE102012015616A1|2012-08-07|2014-02-13|Daimler Ag|filter device|
    DE102013010652A1|2013-06-26|2014-12-31|Daimler Ag|Filter device for filtering a medium, in particular a liquid, as well as filter insert part for such a filter device|
    ES2658137T3|2013-10-08|2018-03-08|Parker-Hannifin Corp|Filter element with undulating seal|
    DE102014201680A1|2014-01-30|2015-07-30|Mahle International Gmbh|filtering device|
    DE202014104029U1|2014-08-28|2014-10-20|Hengst Se & Co. Kg|Filter attachable to a connection flange and filter element|
    DE102015207565B4|2015-04-24|2020-06-18|Robert Bosch Gmbh|Filter element, liquid filter and arrangement|
    EP3117886B1|2015-06-25|2022-03-02|Donaldson Company, Inc.|Air cleaner assembly|
    CN105126490B|2015-08-28|2017-01-25|南京国电环保科技有限公司|High-temperature-resistant filter|
    CN108136289A|2015-09-23|2018-06-08|沃尔沃卡车集团|Filter insert and filter apparatus|
    US10596509B2|2016-07-22|2020-03-24|Mann+Hummel Gmbh|Ring filter element, in particular for oil separation of a crankcase, and filter device|
    CN106334363B|2016-10-21|2018-08-14|莱芜钢铁集团有限公司|Oil lubricating system and its prevent oil spilling filter core with electromagnet|
    CN106402634B|2016-10-21|2018-02-09|莱芜钢铁集团有限公司|Oil lubricating system and its prevent oil spilling filter core|
    CN106322094B|2016-10-21|2018-03-09|莱芜钢铁集团有限公司|Oil lubricating system and its pressurisable prevent oil spilling filter core|
    CN106402633B|2016-10-21|2018-03-09|莱芜钢铁集团有限公司|Oil lubricating system and its prevent oil spilling filter core, draining bar|
    DE102016124587A1|2016-12-16|2018-06-21|Hengst Se|Positioning device with a positioning guide for positioning a first component relative to a second component to be connected in the circumferential direction thereof|
    EP3570955B1|2017-01-23|2020-12-09|Parker Hannifin ManufacturingLimited|A filter assembly|
    GB201701107D0|2017-01-23|2017-03-08|Parker Hannifin MfgLtd|A filter assembly|
    CN110214045A|2017-04-28|2019-09-06|莱宝有限公司|Filter system|
    CN107175248B|2017-06-14|2019-01-22|深圳市华明博机电设备工程有限公司|A kind of emission-control equipment|
    DE102017214718A1|2017-08-23|2019-02-28|Mahle International Gmbh|filtering device|
    DE102017009255A1|2017-10-05|2019-04-11|Mann+Hummel Gmbh|Filter element with ventilation function for hanging connection to a filter head and filter system|
    DE102017012018A1|2017-12-22|2019-06-27|Mann+Hummel Gmbh|Filter system with check valve and filter element|
    DE112018006809T5|2018-01-10|2020-09-24|Kyosan Denki Co., Ltd.|Filter element and filter device|
    IT201800001629A1|2018-01-22|2019-07-22|Ufi Filters Spa|FILTER GROUP|
    DE102019107978A1|2018-03-29|2019-10-02|Mann+Hummel Gmbh|Filter element and filter assembly|
    BE1026438B1|2018-06-26|2020-02-04|Atlas Copco Airpower Nv|Filtering device and method for switching off and / or switching on such a filtering device|
    EP3608009A1|2018-08-10|2020-02-12|Mann+Hummel GmbH|Filter system and filter element with improved positioning means|
    DE102019108955A1|2019-04-05|2020-10-08|Hengst Se|Filter with a filter housing made up of two filter housing parts and with an exchangeable filter insert and filter insert for the filter that are arranged in the filter housing|
    法律状态:
    2018-04-03| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-05-28| B06T| Formal requirements before examination [chapter 6.20 patent gazette]|
    2020-04-07| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2020-09-15| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 31/10/2011, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    DE102010043433|2010-11-04|
    DE102010043433.7|2010-11-04|
    DE102010043836.7|2010-11-12|
    DE102010043836A|DE102010043836A1|2010-11-04|2010-11-12|Filter with a replaceable filter cartridge|
    PCT/EP2011/069146|WO2012059474A1|2010-11-04|2011-10-31|Filter with a replaceable filter insert|
    [返回顶部]