巴西专利BR102014017123B1 FILTER ELEMENT, FILTER HOUSING AND FLUID FILTER

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专利摘要:
filter element with at least one conductive thread, filter with a filter element and filter housing of a filter. a filter (13) for fluid, especially an air filter, especially of a combustion engine, especially a motor vehicle, a filter housing (11) and a filter element (10) are described. the filter housing (11) has an inlet (15) and an outlet (17) for the fluid. the filter element (10), especially a flat filter element, comprises an open filter bellows (16), consisting of a filter medium (18) which has an inflow side (28) and an outflow side (30) for the fluid to be filtered. the filter element (10) is so arranged inside the filter housing (11) that at an inlet (15) it is separated from an outlet (17). the element axis (14) of the filter element (10) and a housing axis (25) of the filter housing (11) can be aligned, for the purpose of mounting the filter element (10), parallel or axially to with a mounting direction (12) on the filter housing (11).
公开号:BR102014017123B1
申请号:R102014017123-1
申请日:2014-07-11
公开日:2021-09-08
发明作者:Robert Hasenfratz；Pascal Neef；Christian Thalmann；Nadine Sorger；Mario Rieger；Werner Blossey；Fabian Wagner；André Rösgen；Frank Pflüger；Andreas Weber
申请人:Mann+Hummel Gmbh；
IPC主号:

专利说明:

Technical Field
[0001] The invention relates to a filter element, especially a flat filter element, to be mounted in a housing for a filter for fluid, especially an air filter, especially of a combustion engine, especially of a motor vehicle , with an open filter bellows of a filter media that has an inflow side and a flow side for the fluid to be filtered and with an element shaft that can be aligned parallel or axial to a mounting direction for the purpose. the integration of the filter element into the filter housing.
[0002] Furthermore, the invention encompasses a filter for a fluid, especially an air filter, especially a combustion engine, especially a motor vehicle with a filter housing that has at least one inlet and at least one fluid outlet and with at least one filter element, especially a flat filter element, especially a filter element according to the invention, with an open filter bellows consisting of a filter medium having an inflow side and an inflow side. flow for the fluid to be filtered, the filter element being so integrated in the filter housing that it separates at least one inlet from at least one outlet and one axis of the filter element and one axis of the filter housing can be aligned for filter mounting purposes, either parallel or axial to a mounting direction on the filter housing.
[0003] Furthermore, the invention encompasses a fluid filter housing of a fluid filter, especially a filter according to the invention, especially an air filter, especially of a combustion engine, especially of a motor vehicle, which has at least one inlet and at least one outlet for fluid, and into which at least one filter element, in particular a filter element according to the invention, in particular a flat filter, can be integrated in such a way. it separates at least one inlet from at least one outlet and has a housing axis which can be aligned for mounting the filter element in parallel or axial to a direction of mounting the filter element in the filter housing. State of the Art
[0004] From WO 2012/175438 A1 a filter assembly with a plate filter element for filtering fresh air from a combustion engine of a motor vehicle becomes known. The filter element has a flat, plate-shaped, flat filter body that has an edge that is circumferentially and laterally disposed, as well as a cross-section of the filter body that can be passed through by the flow. The filter element is integrated into the inner compartment of a filter housing. The filter assembly preferably is an air filter assembly and especially from a motor vehicle.
[0005] The purpose of the invention is to conform a filter element, a filter and a filter housing of the species initially mentioned, in which, an assembly of the element in the filter housing and a disassembly of the filter housing and/or a positioning of the filter element within the filter housing can be improved. In particular, the conduction of the filter on insertion and/or disassembly must be improved, and it can be especially simplified. Furthermore, the invention aims to expand the possibilities for applying a functional element such as, for example, a conductor thread. Description of the Invention
[0006] According to a first aspect of the invention, this task will be solved with the filter element by the fact that the filter element has at least one conductive thread that extends on an outer circumferential side and relative to the axis of the filter element in the direction axial and radial outward.
[0007] According to this first aspect, it is foreseen that at least one conductor thread with which the filter element is guided during assembly of the filter housing and during disassembly.
[0008] The extension of at least one conductive thread radially outwards means that at least one conductive thread, from the outside of the filter element, located in the innermost radial direction with respect to the axis of the element, extends in radial direction outwards. In this case, at least one conductor thread, relative to the axis of the element, can extend radially outwards. Alternatively or additionally, at least one conductor thread may extend from the radially inner direction to the outer radial direction with a directional component perpendicular to the outer side of the filter element that need not project absolutely radially to the shaft of element.
[0009] For simpler description, the filter element has been integrated into an imaginary coordinate system XYZ, whose z axis is axial to the axis element, so the filter element will be driven with at least one conductor thread in transverse direction to the z-axis, especially in the x-axis direction and/or in the y-axis direction in the filter housing.
[00010] Advantageously, at least one conductive filter and/or possibly a thread guide on the side of the corresponding housing, into which or near which at least one conductive thread can be guided, can be configured in such a way that the element - The filter can be guided in different directions in the XY plane, transverse to the element axis.
[00011] At least one housing-side fillet conduction can be embodied with corresponding cutout or groove in a corresponding circumferential wall of the filter housing. In this way, a placement of the filter within the filter housing can be simplified and improved. At least one thread guide can be guided in such a way as to allow a position tolerance of the filter element, especially of at least one thread guide. Advantageously, a gap, in particular transverse, with the element axis can be provided between the at least one guide thread and the at least one thread guide. Advantageously, the extension of at least one thread condition, at least in an expansion direction, especially a direction transverse to the element axis, may be greater than a corresponding extension of at least one conductor thread.
[00012] Furthermore, at least one conductive thread can support the filter element in its service position within the filter housing.
[00013] The conductive functions and possibly the retaining function of at least one conductive thread can advantageously be separated from an eventual sealing function. The sealing function can be performed by another component, especially a seal. Thus, the retaining/conductive function and the sealing function can be optimized separately from each other. With at least one conductor thread, the eventual seal can be mechanically relieved. Thus, any stresses on the seal, especially due to vibrations in the filter operation, can be reduced.
[00014] Based on these foundations, according to the second aspect of the invention, a seal is provided in the filter element that at least with respect to the axis of the element projects circumferentially. The seal has a sealing line having at least one arcuate which is circumferentially disposed between two sequential edge areas circumferentially of the filter element and spaced apart from these edge areas. Thanks to this bending, there is a construction space on the circumferential side for a functional element. Especially according to the first aspect of the invention, the conductor thread is arranged radially to the axis of the element within an axial projection of the inner face surrounded by the arcuate.
[00015] Advantageously, at least one conductor thread can extend over a large part of the height, especially the entire height of the filter, especially the filter bellows and/or possibly a corresponding end body, axially towards the axis of element. In this way, guidance in the assembly of the filter element can be carried out prematurely, preferably before the beginning of insertion of the filter into the housing. Thus, the assembly can be simplified. Furthermore, with the filter element installed, support can thus be carried out over the entire height of the filter element. A bending or tipping of the filter inside the housing, both in mounting and also in the terminal position, can thus be avoided. In this way, relatively large, especially bulky and/or heavy and/or expanded in at least one direction, especially in the direction of the element axis, can also be stably and reliably routed and positioned within the filter housing. . In particular, in this way, filter elements with folded filter means having deep folds and/or variable fold heights can also be conducted and maintained reliably within the filter housing.
[00016] Furthermore, with at least one conductive thread it will be possible to prevent the filter bellows in the assembly pressed against the walls of the filter housing. The filter bellows, especially a filter material, can thus be protected against damage to the filter element assembly.
[00017] Advantageously, a conductor thread, at least considered in the direction of the axis of the element, can be connected. It may also have interruptions. Advantageously, at least one conducting thread can have at least one conducting face which faces with at least one steering component transversely to the axis of the element. To drive the filter element transversely to the element axis, at least one conductive face may slide along a corresponding opposite conductive face of the filter housing.
[00018] Advantageously, at least one conductive thread and/or at least one conductive thread on the housing side can be made of plastic. Plastic can be worked and processed in a simple way. Also, simple and complex shapes can be constructed from plastic. Flexible, especially elastic, building components can also be produced from plastic.
[00019] At least one conductor thread can advantageously be joined with the filter bellows in a cohesive way and/or in positive union and/or in adhesive union, especially through gluing, welding and/or injection, extrusion, profiling, fitting by hooking, linking and/or tightening, this union being indirect, especially through a final body or directly.
[00020] Advantageously, the filter may be suitable for air filtration. It can also be designed for filtering filters of other types, especially gases or liquids. Therefore, a corresponding filter element can be used especially also for filtering fuel, oil, water or urea solution.
[00021] Advantageously, the filter element can be used in a combustion engine of a motor vehicle.
[00022] Advantageously, the filter element can be integrated into an air filter of a utility vehicle especially a truck, a bus, a construction site vehicle or an agricultural machine. These filter elements can also have larger dimensions compared to passenger car filters. The filter element can also be used, however, in passenger vehicles.
[00023] The invention can also be used outside the technique of automotive vehicles, especially in industrial engines. A use of the invention outside of combustion engines, especially in automobile art, is also possible.
[00024] Preferably, it can be an open filter bellows, that is, the filter medium is not closed in the form of a hollow body. In this sense, differently, in a hollow filter element, in a so-called round filter element, the filter medium is circumferentially closed and surrounds an inner compartment.
[00025] Advantageously, the filter element can be a flat filter element. The filter element can be flat or folded. In this case, the inflow side and/or the outflow side of the filter bellows can be flat, curved or stepped. The filter element can also be box-shaped.
[00026] The filter bellows may eventually have the shape of a polyhedron. Advantageously, the filter bellows can be in the shape of a cube, parallelepiped, pyramid, prism, wedge or similar shape. It is not necessary, in this case, that all sides, especially circumferential sides of the bellows filter are flat. In part, the sides of the filter bellows can also be curved or stepped. Opposite sides can project in parallel. Alternatively or additionally they can also extend obliquely or in other non-parallel converging form. Advantageously, an axis of the filter housing may be in parallel or axial or in axial position to the axis of the element and/or the direction of mounting of the filter element. A disassembly line is usually opposite to the assembly direction. The axis of the filter element can advantageously be a central axis and/or a symmetric axis. Advantageously, the element axis can cross the inflow side and the outflow side of the filter element. The axis of the element and/or the direction of assembly advantageously, in the case of a flat inflow side and/or a flat outflow side, can extend perpendicularly to this plane. A main flow direction of the fluid to be filtered by the filter bellows may advantageously extend parallel or axially to the element axis and/or to the mounting direction.
[00027] With regard to the filter medium it can be a filter paper, a filter fleece, a so-called meltblown, a fabric or other filter medium suitable for filtering fluid, especially air. Advantageously, the filter media can be foldable.
[00028] Alternatively, the filter medium may also have a fluid permeable filter foam, especially permeable to air. The filter bellows can be produced as a massive block of filter foam of this type.
[00029] In an advantageous mode, at least one conductor thread can be narrowed in the direction of the element axis, especially in the mounting direction, of at least one direction of transverse extension to the element axis.
[00030] At least one conductor thread can advantageously narrow in its circumferential distension relative to the element axis. Alternatively or additionally, at least one conductor thread may taper relative to the element axis from a radially-inward position to an extension facing radially outward.
[00031] Advantageously, at least one conductor thread - considered in the mounting direction - in at least one direction of extension, may be smaller than behind. In this way, at least one lead thread can be simply introduced into a corresponding projection thread lead. Thus, a ramp-like drive can be realized.
[00032] In another advantageous mode, at least one conductor thread, considered in the direction of the element axis, may present at least one protrusion or a step.
[00033] Advantageously, the extension of at least one conductor thread in at least one direction of extension, considered transversely to the axis of the element in the mounting direction, - of at least one step may be less than above and/or behind at least one ledge or at least one step.
[00034] The protrusion or step, in the assembly of the filter element may serve as a kind of stop in a corresponding counterface, especially a step of the filter housing. The filter element can rest in its position on at least one protrusion or on at least one step on the corresponding counterface of the filter housing. In this way, the filter element, relative to the axis of the element, can be axially positioned in the filter housing. In this way, an eventual filter element seal can also be positioned exactly inside the filter housing.
[00035] In another advantageous modality, a position of at least one segment, especially an elastic arm of at least one conductor thread may be elastically deformable with respect to the filter bellows.
[00036] The modification of the position of at least one segment can be accomplished by changing the shape and/or by the movement of at least one segment.
[00037] Advantageously, at least one changeable segment of at least one conductor thread can be movable with at least one directional component transverse to the element axis.
[00038] Advantageously, the conductor thread can have an elastic segment, especially an elastic shoulder or an elastic arm.
[00039] Advantageously, the changeable segment can be located in the area of a front end of the conductor thread considered in the assembly direction.
[00040] Advantageously the alterable segment may cooperate with a corresponding opposite segment of the filter housing, especially in a given case, the thread conduction. With the changeable segment, a position tolerance of the filter element within the filter housing can be compensated for. In this way, transverse guidance and/or support to the element axis can be improved. In addition, simply, damping of oscillations can be carried out. In an end position of the filter element, the changeable segment may abut under mechanical stress on the filter housing, especially from the thread drive.
[00041] Advantageously between at least one changeable segment, especially elastic oscillating, and the filter bellows, especially the end body, may be arranged in at least one elastic element. With the elastic element, an alterable mechanical elastic tension of the segment can be improved.
[00042] At least one changeable segment of at least one conductive thread and/or at least one elastic element may advantageously present elastic material, especially elastic plastic, especially elastomer, preferably polyurethane, or may consist of this material. With plastic, simple, especially elastic properties and/or shapes can be realized. Elastomers, especially polyurethane, have elastic properties. They are especially indicated for implementing the elastic element.
[00043] At least one changeable segment and/or at least one elastic element can advantageously, particularly in a one-piece manner, be connected in at least one conductive thread and/or optionally in a final body.
[00044] At least one changeable segment and/or at least one elastic element can advantageously be injected or cast in at least one conductive thread and/or eventually in a final body. They can also be joined in another way, cohesive and/or adherent and/or positive with at least one conductive thread and/or at least one final body.
[00045] In another advantageous mode, the filter element can have at least two conductive threads that can be reciprocally distanced circumferentially with respect to the axis of the elements. Preferably, the conductor threads are arranged radially to the elementary axis within an axial projection of the inner face surrounded by a respective arcuate.
[00046] In this way, the filter element can be guided and/or positioned at different points. In this way, the filter element can be guided and/or positioned more evenly within the filter housing. This can reduce the risk of the filter element being misaligned during assembly or disassembly. In this way also relatively heavy and/or large filter elements can be simply and accurately kept in the filter housing.
[00047] Advantageously, at least two conductor threads can be arranged with respect to a plane containing the axis of the element, on opposite sides, especially circumferential sides, of the filter element. In this way, the filter element can be guided and/or positioned evenly on opposite sides.
[00048] Advantageously, at least four conductive threads, circumferentially distributed with respect to the axis of the element, can be mounted on the filter element.
[00049] Advantageously, always two conductor threads can be arranged in pairs.
[00050] In another advantageous mode, at least two conductor threads, relative to the element axis, especially with respect to a symmetrical axis of the filter element, can be asymmetrical eventually, with a final body, in the direction of an axial symmetry.
[00051] It can be avoided in this way that a dummy filter element or the dummy filter element itself is mounted inside the filter housing. Thus, especially, a so-called blind assembly, in which the correct orientation of the filter element within the filter housing in the assembly, cannot simply be recognized, can be simplified.
[00052] Advantageously, at least the two conductor threads can present different shapes, extensions and/or projections to perform the asymmetry. Alternatively or additionally, at least the two conductor threads can be arranged asymmetrical with respect to the element axis.
[00053] In another advantageous modality, the filtering medium may be folded.
[00054] By bending the filter medium, the relationship between the active filter face and the built-up volume of the filter bellows can be improved.
[00055] Conveniently, the filter medium can be bent in a zigzag with respect to the filter bellows. In filter elements, especially flat filter elements, with an open filter bellows, the filter means are not closed, i.e. front folds in the same way as front edges are not joined together. Differently, with regard to this situation, in the case of hollow filter elements, especially round filter elements, the filter media are shaped like a closed filter bellows, i.e. their front folds are interconnected. The front folds are the two outer folds on opposite front sides, especially on the oblong sides of the filter bellows. Front edges are the two free outer edges of the filter media that extend along the front folds and border them on the front sides of the filter bellows. The front edges of the filter bellows are the two other free edges of the filter bellows that extend between the front edges and extend correspondingly to the fold of the filter bellows. Filter edges are those edges along which the filter media is bent. In a zigzag folded, parallelepiped-shaped filter bellows, the front edges and folding edges are straight and converge parallel to each other. The leading edges extend zigzag and perpendicular to the leading edges and folding edges. The front edges always cover one side of the front edge of the filter bellows. In folded media, the inflow side of the filter bellows will be covered by the inflow side bellows edges. The flow side will be covered by the folding edges of the flow side of the filter bellows.
[00056] Advantageously, the filter bellows can have deep folds. In the case of a filter bellows, possibly shaped like a parallelepiped, this is especially referred to as deep folds when a fold height is at least as great as the extension in the direction of the folding edges and/or in the transverse direction towards the edges of fold.
[00057] Advantageously, at least one support thread can extend parallel to a bending height of the filter medium. Advantageously, at least one support fillet can extend perpendicularly to the bending edges. Advantageously, the bending edges of the filter medium can extend at least on one side of the filter bellows, especially on the inflow side, perpendicular to the element axis.
[00058] In another advantageous embodiment, an axial height relative to the element axis, especially bending height, of the filter bellows can vary.
[00059] Advantageously, folding paths can be provided which vary also within the filter bellows. Fold heights and/or fold paths can vary within at least one of the folds. The fold heights and/or fold paths may, alternatively or additionally, also vary between the folds, especially the neighboring folds. In this way, a curved path on the inflow side and/or on the outflow side can be realized. Especially, the fold heights in the center of the filter bellows can be smaller or larger than in the region of the oblong sides, especially the front folds. Alternatively, the filter bellows can also be scaled by a corresponding variation of the fold heights. Thus, the filter bellows in the region of the front sides, especially the front folds, can be of different height.
[00060] Advantageously, the filter element, on one side, especially on the flow side, can be flat, curved, especially circular cylindrical or oval cylindrical, and/or can be staggered.
[00061] In another advantageous mode, at least on one circumferential side, the filter bellows extending between the inflow side and the outflow side, at least one final body, especially in the final disc, may be arranged.
[00062] At least with one final body the filter bellows and the entire filter element can be stabilized. In addition, the filter bellows can be closed especially watertight, with at least one end body on the corresponding side. Furthermore, at least one final body can serve as a connecting element and/or a retaining element, with which the filter element inside the housing can be guided, positioned and/or maintained in a more stabilized manner.
[00063] Advantageously, on several circumferential sides of the filter bellows, corresponding end bodies can be arranged. Thus, the stability of the filter element can be further improved. At least one end body can also extend on several circumferential sides, especially the entire circumference of the filter bellows.
[00064] Advantageously, on opposite circumferential sides of the filter bellows, an end body can be arranged. The end bodies can advantageously be located on the sides of the filter bellows, which sides are relatively opposite to the mounting direction of the filter element and/or the shaft element.
[00065] In the case of a filter medium, at least one end body can be located on a front edge side of the filter bellows. At least one end body may be tightly joined to the side of the leading edge. In this way, at least one end body will be able to seal tight to the side of the front edge of the filter bellows.
[00066] Advantageously, both sides of the front edges of the filter bellows can be closed with an end body.
[00067] At least one end body can advantageously be an end disc. An end disk is flattened in one expansion direction relative to other expansion directions. In this way, the space required for the final body and therefore also for the filter element as a whole can be reduced.
[00068] At least one end body may have a rib structure with which the stability of the end body can be enhanced.
[00069] At least one final body may advantageously consist of plastic or may have plastic.
[00070] At least one final body, especially plastic, can exhibit especially a mechanical damping effect. Furthermore, the plastic can be simply welded, especially cast or injected. With a final body made of or with plastic, mobility, especially the flexibility of the support, can be improved.
[00071] At least one end body, especially the plastic end body, can advantageously be joined with the filter bellows in a positive form or cohesive form, especially through welding, gluing, shaping, casting, injection, a snap connection, a hook connection, a press fit and/or a clamp connection or otherwise.
[00072] In another advantageous embodiment, at least one conductor thread can be joined with at least one end body especially in one piece. In this way, at least one conductor thread can be produced in a simple way together with the corresponding final body, in particular it can be prefabricated. At least one end body with at least one conductive thread can be simply joined with the filter medium, especially with the filter bellows. This can advantageously take place in one work step.
[00073] Advantageously, at least one conductor thread and at least one end body can be integrally connected. With a solid connection, stability can be increased. Additional fastening elements and/or additional assembly steps for joining at least one conductor thread with at least one final body may be dispensed with.
[00074] Advantageously, at least one end body can be specially injected or cast with at least one conductive thread, simply from plastic.
[00075] Alternatively, at least one conductor thread, instead of being one-piece, can also be joined as a separate constructed component or in a separate component, directly or indirectly, with the final body. The separate constructed component can advantageously be joined with at least one final body. Alternatively, the separate constructed component can be directly joined with the filter bellows.
[00076] In another advantageous embodiment, the filter element can have at least one filter element retainer assembly that can be joined directly or indirectly with the filter bellows, extending between the inflow side and the inflow side. flow along at least a part of the circumference of the filter bellows and which at least can have a retainer assembly which protrudes from the filter bellows transversely to the axis of the element from a radially inward position to a radially outwardly projecting position.
[00077] With at least one filter element retainer assembly, the filter element may be maintained in a simple manner within a corresponding counter-retaining assembly of the filter housing. In this way, the filter element can be simply positioned inside the filter housing. Because the filter element retainer assembly extends at least along a part of the circumference and has retainer assemblies protruding radially to the element axis, especially in the mounting direction, positioning and axial retention within the filter housing in the mounting direction and/or element axis.
[00078] Advantageously, the filter element can comprise at least one axial sticky face. The sticky face, i.e. axial retainer, can face with at least one directional component in an axial direction towards the filter element axis. At least one axial retaining face may abut a corresponding axial counterface of the filter housing for the purpose of retaining the filter element axially to the axis of the element.
[00079] Advantageously, the filter housing can have the counter-retention assembly with which the filter element retainer assembly may cooperate. The counter-retaining assembly can have at least one retaining insert, in particular a cut-out, which can accommodate at least one retaining assembly of the filter element retaining assembly. The counter-retaining assembly can advantageously be embodied in connection with connecting flanges of the filter housing, to join a cylindrical section of the housing with a housing cover.
[00080] Advantageously, on the element side, an axial distance between the filter element retainer assembly and one side, especially the flow side, of the filter element, facing at least one passage, especially a flow of the filter housing , may be less than an axial distance on the housing side between the counter seal assembly and at least one passage. In this way it can be avoided that the filter element covers at least one passage, thus interfering with a flow current.
[00081] Advantageously, at least one filter element retainer assembly can be located close to a rear side of the filter element with respect to the mounting direction. Advantageously, the rear side of the filter element could be the inflow side.
[00082] Advantageously, at least one filter element retainer assembly may be joined with at least one eventual final body. In this way, a transfer of power from the filter housing to the filter bellows and vice versa can be improved.
[00083] In another advantageous modality, at least one conductor thread may be located inside an imaginary cylinder, whose axis extends parallel or axially to the axis of the element and whose radially outer circumferential side, through a circumference The outer edge of the filter element - considered in the direction of the element axis - can be set at the height of the filter element retainer assembly.
[00084] In this way it can be avoided that at least the conductor thread transversely to the element axis, that is, in the direction of the x-axis and/or y-axis, the filter element retainer assembly. It can be achieved in this way that the lateral expansion of the filter element is no longer amplified by at least one conductive thread.
[00085] At least one conductive thread can advantageously be arranged in an area of the filter element in which the filter element is already widened anyway by virtue of the filter element retainer assembly, in lateral direction, especially in transverse direction towards the direction of assembly, that is, in relation to the axis of the element. The filter element retainer assembly therefore defines the widest point of the filter element. Correspondingly, the counter seal assembly defines the widest point of the filter housing. When mounting the filter element, at least one conductive thread can be introduced freely into narrower areas behind the counter-retaining assembly.
[00086] Advantageously, at least one conductor thread, considered in the direction of the axis of the element, may be aligned with at least one retainer assembly. "Aligning" in the sense of the invention means that a projection of at least one conductive thread is in the direction of the element axis at least partially, preferably fully, within the retainer assembly of the filter element retainer assembly or vice versa.
[00087] In another advantageous embodiment, it may be provided at least in the filter element a circumferential seal with respect to the axis of the element.
[00088] Advantageously, the seal may extend beyond the filter bellows on at least one side circumferential radially external to the element axis. Advantageously, the seal may be circumferentially closed.
[00089] In the sense of the second aspect of the invention, the seal may involve at least one conductor thread in radially external position relative to the element axis. In the region of the conductor thread, an outline of at least one seal, advantageously, may be suitable in a circumferential path of the conductor thread.
[00090] Eventually, the seal may be positioned on or at least on one of the retaining assemblies. Advantageously, the seal can be positioned adjacent to or optionally over the filter element retainer assembly. Advantageously, the seal can also at least also configure the filter element retainer assembly.
[00091] Especially, in an arrangement of at least one retainer assembly of the filter element retainer assembly in the region of the front side in at least one end body, the sealing line of the seal can advantageously extend radially with respect to the element axis externally , around at least one retainer assembly and around at least one conductor thread. Arches according to the second aspect of the invention result, which, considered in the direction of the element axis, correspond to the position of at least one retainer assembly and/or to at least one conductor thread. Advantageously, these bends can also simultaneously involve at least one retainer assembly and/or at least one conductor thread.
[00092] Advantageously, at least one seal and/or the filter element retainer assembly can be arranged close to the inflow side. In this way, a large part of at least one conductive thread can be located on the pure side of the filter element. The filter housing, in particular, and possibly the counter-retaining assembly, can advantageously have a sealing segment for receiving the seal. A circumferential path of the seal segment can correspond to the path of the seal. In particular, the sealing segment can have at least one cutout for receiving at least one radially external segment protruding from the sealing which optionally surrounds at least one support thread. The housing-side sealing segment can advantageously be produced in connection with one or more connecting flanges of the cylindrical section of the housing and/or of the housing cover.
[00093] Advantageously, at least one seal, relative to the element shaft, may exert an axial sealing action. This means that the seal has at least one axial sealing face which faces at least one directional component parallel to the element axis. The axial sealing face can advantageously cooperate with a corresponding axial sealing face of the filter housing which also faces at least one directional component in parallel to the axis of the element. Alternatively or additionally, the seal may also exert a radial sealing action.
[00094] In another advantageous modality, the filter element can present at least one handle element, in which, the filter can be held especially for assembly or disassembly.
[00095] In at least one handle element, the filter element can be simply held. In this way, the formation of impurities and/or damage to the filter element, especially the filter bellows, during assembly can be avoided. Furthermore, the filter element can be inserted and removed more simply inside the filter housing. Therefore, the filter element can also be simply removed from the filter housing when the filter bellows is packed deep into the cylindrical section of the housing.
[00096] At least one handle element can advantageously be joined with the filter bellows, especially with at least one final body. At least one handle element can advantageously be integrally connected with at least one final body.
[00097] At least one handle element may advantageously be joined with at least one filter element retainer assembly and/or may participate in the formation of this assembly. In this way, at least one handle element can additionally act as a retainer element to hold the filter within the filter housing. Thus, the positioning of the filter element within the filter housing can be further improved. An eventual seal can in this way be additionally mechanically relieved. With at least one handle element there can be an additional hooking between the filter element within the filter housing. In this way, it becomes possible to realize different orientations of the filter element in the area. Therefore, a so-called suspended filter system can also be implemented in a simple way, in which there is a so-called upper assembly, that is, superimposed, of the filter element. An overhead filter system has the advantage that when opening the filter housing for maintenance purposes, eventual impurity residues can fall under the filter trough. This is of great advantage, especially when using the air filter in a utility vehicle. The filter element can in this way also be arranged obliquely or with a drop.
[00098] A contour of at least one element of the handle can match a corresponding opposite contour of the filter housing, especially a housing cap.
[00099] Advantageously, the filter housing, especially the housing cover, can have at least one transfixing opening to the outside through which at least one handle element can be projected. In this way, at least one handle element, with the filter housing mounted, can be recognized from the outside. Thus, it can be recognized whether the right filter element is correctly mounted inside the filter housing.
[000100] In addition, the task according to the invention with the filter will be solved by the fact that the filter element has at least one conductive thread that extends on an outer side of the filter element, relative to the axis of the element, circumferentially, axially and radially outwards, the filter housing having at least one thread guide for at least one conductor thread extending on an inner side of the filter housing, circumferential with respect to the housing axis , in axial and radial direction outwards.
[000101] The advantages and characteristics mentioned in connection with the filter element according to the invention and its advantageous modalities apply for the filter according to the invention correspondingly and vice versa.
[000102] In addition, the task according to the invention with the filter housing will be solved by the fact that the filter housing has at least one thread conduction for at least one thread conductor of the filter element that extends in a inner side circumferential with respect to the axis of the housing, which extends on an inner side of the filter housing circumferentially with respect to the axis of the housing, in an axial direction and radially outwards.
[000103] The advantages and characteristics mentioned above, in relation to the filter element according to the invention and its advantages and respectively advantageous characteristics apply to the housing of the filter according to the invention, correspondingly and vice versa.
[000104] Brief Description of Drawings
[000105] Other advantages, characteristics and details of the invention result from the following description, in which, examples of execution of the invention, based on the drawing, will be explained in more detail. The specialist will analyze the features revealed in the drawing, in the description in combination, conveniently, also individually, bringing them together in other combinations in a schematic way and differentiated presentations and detailed views.
[000106] Figures 1 to 9 - an air filter as an air filter element that has conductive threads to drive the air filter element in assembly in an air filter housing according to a first example of embodiment;
[000107] Figures 10 to 12 - an air filter according to a second example of execution;
[000108] Figures 13 to 19 - an air filter according to a third example of embodiment;
[000109] Figures 20 to 26 - an air filter according to a fourth embodiment;
[000110] Figures 27 to 28 - an air filter according to a fifth embodiment example;
[000111] Figures 29 to 31 - an air filter according to a sixth example of execution;
[000112] Figures 32 to 36 - an air filter according to a seventh example of execution;
[000113] Figures 37 to 42 - an air filter according to an eighth example of embodiment;
[000114] Figures 43 to 47 - an air filter according to a ninth example of execution.
[000115] In the figures, like components have like reference numbers.
[000116] Form(s) of Carrying Out the Invention
[000117] In figures 1 to 5 is shown an air filter 13 of a combustion engine of a motor vehicle as the first example of execution in different presentations. The air filter 13 comprises a filter element 10 which is so integrated in an openable filter housing 11 that it is interchangeable so that it separates an air inlet 15 of the filter housing 11 from an air outlet 17. The filter element 10 alone is shown in figures 6 to 9 in different perspectives. The filter housing 11 comprises a cylindrical housing section 19 and a housing cap 21. The housing cylindrical section 19 has the air outlet 17. The housing cap 21 encompasses the air inlet 15. The air filter air 13 serves for filtering combustion air that is fed to operate the combustion engine.
[000118] A mounting assembly 12 of the filter element 10 in the cylindrical section of the housing 19 extends in the embodiment shown in parallel to the axis of the element 14. A housing axis 25 of the filter housing 11 extends in the mounted air filter 13 in the coaxial direction to the element axis 14. The element axis 14 extends, for example, in parallel to the z-axis of an XYZ coordinate system which is shown in figure 1 for simplification of the description.
[000119] The filter element 10 can be fitted into the cylindrical section of the housing 19 through a mounting opening 23.
[000120] Filter element 10 is configured as a flat filter element. The filter element 10 comprises a filter bellows 16 externally in the approximate parallelepiped shape of a zigzag folded filter medium 18. The filter medium 18 can be filter paper, filter fleece or other foldable filter medium suitable for filtering air. The filter bellows 16 may also consist of an unfolded filter medium, for example a filter foam. The filter medium 18 is folded along folding edges 20. The edges and folds 20 protrude converging in parallel and perpendicular to the element axis 14. The folding edges 20 project, for example, parallel with respect to an x-axis of the XYZ coordinate system.
[000121] In figure 1 it is shown, for example, at the top, one of the folding edges 20 on the inflow side. The heights 22 of the folded filter means 18 extend parallel to the element axis 14, i.e. in the z-axis direction. A maximum axial height of the filter bellows 16, relative to the element axis 14, in the z-axis direction, is greater than the width of the filter bellows 16 in the y-axis direction. Therefore, the folds can be designated as deep.
[000122] The heights 22 of the bends vary from bend to bend in the direction of the y-axis, that is, perpendicularly to the edges of bends 20 and perpendicularly to the axis of element 18. The heights 22 of the bends in the center of the bellows of filter bellows 16 are smaller than the heights 22 of the outer pleats on the oblong sides 24 of the filter bellows 16. The oblong sides 24 are formed by the front pleats of the filter bellows 16. The path of a curve through the edges of pleats 20 in the figure 1 below, on the flow side, in the YZ plane, corresponds approximately to the path of a parabola.
[000123] The front edge sides 26 of the filter bellows 16 are covered by the front edges, covered in the figures, of the filter medium 18. The front edges of the filter medium 18 have an approximately zigzag pattern. The sides of the front edges 26 are on radially opposite sides with respect to the element axis 14. The sides of the front edges 26 converge parallel and perpendicularly to an inflow side 28 and a flow side 30. The inflow 28 and the outflow side 30 are covered by the element axis 14 and the folding edges 20 on the inflow side, i.e. the outflow side. The sides of the front edges 26 interconnect the two oblong sides 24, parallel to the reciprocally opposite plane X-Z, of the filter bellows 16, and with this constitute the circumference of the filter bellows 16.
[000124] The inflow side 28, in figure 1 above, is, with the mounted filter element 10, on the side facing towards the housing cover 21.
[000125] The flow side 30, in figure 1 below, is on the side facing towards the bottom of the cylindrical section of the housing 19.
[000126] During the operation of the filter element 10, the filter bellows 16, according to the present embodiment, will be passed through with air from the inflow side 28 towards the outflow side 30. A flow direction The main air through the filter bellows 16 projects in the present example, therefore, parallel to the mounting direction 12, and to the element axis 14. The filter bellows 16 could also be traversed in the reverse direction. In this case, the designations "inflow side" and "flow side" are changed accordingly.
[000127] On the sides of the front edges 26 of the filter bellows 16, an end disc 32 is sealingly joined with the front edges of the filtering medium 18. The end discs 32 consist of plastic. The end disks 32 are moreover approximately rectangular. Its lower, flow-side edges, facing toward the flow-side 28, project correspondingly to the flow-side 28 approximately in the shape of a parabola. The flow-side edges of the end disc 32 and the flow-side 28 are, with the mounted filter element 10, on the side facing towards the housing cover 21, above the air outlet 17.
[000128] Near the inflow side edge, each end disc 32 has a filter element retainer assembly 34. The filter element retainer assembly 34 comprises a one-piece protrusion 36. The protrusion 36 extends circumferentially with respect to the element axis 14. It extends towards the bendable edges 20, considered from the filter bellows 16, outwardly, and approximately parallel to the edge of the end discs 32 of the inflow side.
[000129] In the region of their ends, facing the direction of the oblong sides 24, the protrusions 36 present - considered from the filter bellows 16, a retainer assembly 38 protruding towards the outside. The retainer assemblies 38 have on their side facing the inflow side 28, and on their side facing the outflow side 30, a retainer face 40. The retainer faces 40 always extend approximately parallel to the plane. XY. Retaining faces 40 are essentially parallel to the z-axis, that is, they are aligned in the direction of element axis 14.
[000130] With the aid of the filter element retainer assembly 34, the filter element 10 can be retained within the filter housing 11 axially with respect to the direction of the assembly 12 and the element axis 14. For this purpose, the housing of the filter 11 has a corresponding counter retainer assembly 39 for the filter element retainer assembly 34.
[000131] A seal 42, configured as a profile seal, surrounds the filter bellows 16 and the end discs 32, respectively the protrusions 36 and the retainer assemblies 38, with respect to the element axis 14, in a closed circumferential sense. It lies, considered from the inflow side 28, slightly behind the fold edges 20 on the inflow side.
[000132] In addition, the end discs 32, on their outer sides spaced from the filter bellows 16, have reinforcement ribs 44 that protrude in the form of a grid.
[000133] The filter element 10 has two conductive threads 46 high and two conductive threads 48 low. On each side of the front edge 26 there is, in this case, one of the high conductor threads 46 and one of the low conductor threads 48. Conductor threads 46 and 48 are integrally joined with the corresponding end disk 32.
[000134] The conductor threads 46 and 48 extend axially and outwardly in a radial direction on the side of the front edge 26 corresponding to the element axis 14.
[000135] The conductor threads 46 and 48 are mutually spaced apart, beside one of the elongated sides 24. The high conductor threads 46 are arranged oppositely spaced apart with respect to the Y-Z plane. Likewise, the two low conductor threads 48 are mutually distanced with respect to the plane Y-Z in a reciprocally opposite position. The high conductor threads 46, with respect to the X-Z plane, are arranged opposite the corresponding low conductor thread 48 on the same side as the front edge 46.
[000136] The heights of the 46 high conductor threads in the x-axis direction are less than the heights of the 48 low conductor threads. The heights of the conductor threads 46 and 48 decrease in the direction of the element axis 14 from the inflow side 28 towards the outflow side 30.
[000137] The low conductor threads 48 have near the inflow side 28 a step 50 especially shown in figures 4 and 7. On the inflow side of the step 50, a width of the low conductor threads 48 is greater in the y-axis direction of the than on the flow side of the step 50. The steps 50 are in the flow direction immediately behind the filter element retainer assembly 34.
[000138] Altogether, four conductor threads 46 and 48, with respect to the element axis 14, are asymmetric in the sense of an axial symmetry.
[000139] At their flow-side ends, the low conductive threads 48 have an elastic arm 52. The elastic arms 52 extend approximately parallel to the z-axis. With their free ends, they point towards the outflow side 30. The elastic arms 52 are slightly bent in the x-axis direction outward from the filter bellows 16. The elastic arms 52 are elastically flexible in the x-axis direction . Therefore, the positions of the free ends of the elastic arms 52 can be elastically changed relative to the filter bellows 16.
[000140] The conductor threads 46 and 48 are situated within an imaginary cylinder, whose axis extends in parallel or axially to the axis of element 14 and whose circumferential radial outer side, by the outer circumference of the filter element 10, considered in the direction of the element axis 14, is defined for the height of the filter element retainer assembly 34. Altogether, the filter element retainer assembly 34 extends beyond the conductor threads 46 and 48 in the x-axis direction.
[000141] The seal 42 involves the conductive threads 46 and 48. In the region of the conductive threads 46 and 48, the seal 42 has corresponding arches 54, which, relative to the element axis 14, project in a radial direction towards the outside. The arches 54 are integrated between two edge areas of the filter element 10 and are spaced apart from it. In particular, the sealing line extends between an edge area and the bow 54 provided in its vicinity, covering at least a short straight stretch.
[000142] In addition, the filter element 10 has two handle elements 56. The handle elements 56 are integrally joined alongside the inflow face 28 with the inflow-side edge of the corresponding end disk 32. Handle elements 56 are on opposite sides of the Y-Z plane. In the handle elements 56, the filter element may be secured for assembly or disassembly.
[000143] The cylindrical section of housing 19 has two conductive grooves 58 high on the side of the cylindrical section and two conductive grooves 60 low on the side of the cylindrical section. Conductive grooves 58 and 60 are matingly disposed to corresponding high conductive threads 46 and low conductive threads 48 on the radially inner circumferential side relative to housing axis 25 of the cylindrical section of housing 19. Conductor groove extensions 58 and 60 in the x-axis direction and in the y-axis direction are slightly larger than the extensions of the corresponding conductor threads 46 and 48. , in the conductor slots 58 and 60. The extension of the conductor slots 58 and 60 in the z-axis direction is greater than the extension of the corresponding conductor threads 46 and 48.
[000144] The low conductive grooves 60 have, on their side facing the housing cover 21, a projection 62 on which the step 50 of the corresponding low conductive thread 48 can rest.
[000145] A connecting flange 64 on the side of the cylindrical section of the housing 19 surrounds the mounting opening 23 relative to the element axis 14 in a circumferential direction. On its side facing towards the housing cover 21, the joining flange 64 on the side of the cylindrical section is open. It forms a part of the cylindrical section side of the counter-seal assembly 39. The cylindrical section side mating flange 64 has corresponding arcuates 66 for receiving the retainer assemblies 38 and the corresponding arcuatees 54 of the seal 42.
[000146] The housing cover 21 has two high conductive grooves 68 on the cover side and two low conductive grooves 70 on the cover side which, with the filter housing 11 mounted, are always in the extension of the conductive grooves 58 and 60 on the side of the cover. corresponding cylindrical section. The lid side conductive grooves 68 and 70 fit segments of the conductive threads 46 and 48 that meet on the inflow side of the filter element retainer assembly 34.
[000147] A joint flange 72 on the cover side, belonging to the housing cover 21, is open on its face facing the cylindrical section of the housing 19. It forms a part on the cover side of the counter-retainer assembly 39. The cap side joint 72 has corresponding arcuatees 74 for receiving retainer assemblies 38 and corresponding arcuatees 54 of seal 42.
[000148] For assembly of the filter housing 11, the filter element 10 will be introduced with the flow side 30 in front through the assembly opening 23 in the cylindrical section of the housing 19. From the beginning, the conductor threads 46 and 48 will be conducted in the conductor grooves 58 and 60 on the side of the corresponding cylindrical section.
[000149] As soon as the retainer assemblies 38 of the filter element 10 touch the side of the cylindrical section of the counter retainer assembly 39, another movement of the filter element 10 in the mounting direction will be stopped. -tores 46 low fit into corresponding segments 62 of the low conductor grooves 60 on the side of the cylindrical section. The elastic arms 52 of the low conductor threads 48 are situated at the terminal position of the filter element 10 under mechanical molar tension in the x-axis direction on corresponding walls of the low conductor grooves 60 on the side of the cylindrical section.
[000150] Then, the housing cover 21 will be positioned over the cylindrical section of the housing 10 and the filter housing 11 will be closed. The filter element retainer assembly 34 and with it the filter element 10 will be held between the cylindrical section side union flange 64 and the cap side union flange 72 in axial direction with respect to the z-axis.
[000151] Figures 10 to 12 show a filter element 10 according to the second example of embodiment. Different from the first example of embodiment of figures 1 to 9, in the second example of embodiment, between the elastic arms 52 and the outer side of the corresponding end disk 32, an elastic element 176 is arranged. an elastic return force of the molar arms 52 axially in the x-axis direction.
[000152] Figures 13 to 19 show an air filter 13 according to the third example of execution. Unlike the first example of embodiment of figures 1 to 9, in the third example of embodiment the steps 50 of the low conductive threads 48 on the flow side are at a greater distance behind the filter element retaining assembly 34. the heights of the folds 22 of the filter bellows 16 are constant. The flow side 30 is therefore flat. The flow-side edges of the end discs 32 are correspondingly straight. The air outlet 17 projects in front of the oblong sides 34 outside the cylindrical section of the housing 19. Between the molar arms 52 and the external side of the corresponding terminal disk 32, similarly to the second example of execution of figures 10 to 12, an elastic element 176 is always provided.
[000153] In figures 20 to 26 an air filter 13 is shown, according to a fourth example of execution. Unlike the third example of execution of figures 13 to 19, there are no elastic elements 176 behind the molar arms 52 here.
[000154] Figures 27 and 28 show an air filter 13 according to a fifth embodiment example. Different from the first example of embodiment of figures 1 to 9, the filter element retaining assembly 39 is arranged here with the seal 42 at the inflow side 28. In addition, the filter bellows 16 and the end discs 32 on the side of the flow 30 are scaled. Between the conductive threads 46 and 48 and the filter element retaining assembly 34 a gap is provided.
[000155] In addition, the high conductor threads 46 are positioned on an oblong side 24 different on one side of the leading edge 26 than on the other side of the leading edge 26. Correspondingly, the low conductor threads 48 are arranged on the side of an other oblong side 24. Furthermore, the distances between the oblong sides 24 and the neighboring corresponding conductor threads 46 and 58 on one oblong side 24 are greater than on the other oblong side 24.
[000156] The grip elements 56 protrude at the height of the disc on the inflow side 28 laterally axially outwards in the x-axis direction. The housing cover 21 has a transfixing opening 178 for the handle elements 56. With the air filter 13 correctly assembled, the handle elements 56, as shown in figure 28, are visible from the outside. On its joining flange 64 on the side of the cylindrical section, the cylindrical section of the housing 19 has corresponding shoulders 180 which, with the assembled air filter 13, fit behind the handle elements 56.
[000157] In figures 29 to 31 an air filter 13 is shown according to a sixth example of execution. Different from the fifth example of embodiment of FIGS. 27 and 28, here on the filter element 10 there are no handle elements 56. In addition, the conductive threads 46 and 48 converge without gaps in the retaining assembly of the filter element 34.
[000158] Figures 32 to 36 show an air filter 13 according to a seventh example of execution. The seventh example of execution is similar to the sixth example of execution of figures 29 to 31.
[000159] In figures 37 to 42 an air filter 13 is shown according to an eighth example of execution. The eighth embodiment is similar to the sixth embodiment of figures 29 to 31 and the seventh embodiment of figures 32 to 36.
[000160] Figures 43 to 47 show an air filter 13 according to the ninth example of execution. The new execution example is similar to the fifth execution example of figures 27 and 28.

权利要求:
Claims (13)
[0001]
1. Filter element (10), especially a flat filter element, for mounting in a filter housing (11) of a filter (13) for fluid, especially of an air filter, especially of a combustion engine, especially of a motor vehicle, with an especially open filter bellows (16), consisting of a filtering means (18) having an inflow side (28) and a flow side (30) for the fluid to be filtered, and with an element shaft (14), which can be aligned for mounting the filter element (10) in the filter housing (11) in parallel or axially to a mounting direction (12), characterized in that at least a seal (42) extending circumferentially with respect to the element axis (14) is disposed on the filter element (10), the seal (42) having a sealing line covering at least one arcuate. (54), which is circumferentially disposed between two edge areas of the filter (10) and distanced from these edge areas, and especially a conductor thread (46, 48) is disposed radially to the element axis (14) within an axial projection of the inner face surrounded by the arcuate (54 ).
[0002]
2. Filter element according to claim 1, characterized in that the at least one conductor thread (46, 48) narrows in the direction of the element axis (14), especially in the direction of assembly (12) , at least in one expansion direction (X, Y) transversely to the element axis (14).
[0003]
3. Filter element according to claim 1 or 2, characterized in that the at least one conductor thread (46, 48), considered in the direction of the element axis (14), has at least one protrusion or step (50).
[0004]
Filter element according to any one of the preceding claims, characterized in that a position of at least one segment, in particular of an elastic arm (52), of the at least one conductor thread (48) can be elastically modified with respect to the filter bellows (16).
[0005]
Filter element according to any one of the preceding claims, characterized in that the filter element (10) has at least two conductive threads (46, 48) which are circumferentially spaced apart from the element axis (14 ), and preferably the conductor threads (46, 48) are respectively disposed radially to the axis of the element (14) within an axial projection of the inner face surrounded by a respective arcuate (54).
[0006]
6. Filter element according to any one of the preceding claims, characterized in that at least two conductor threads (46, 48) with respect to the element axis (14), especially with respect to a symmetrical axis of the filter element (10), optionally with at least one end body (32), are asymmetrical in the sense of an axial symmetry.
[0007]
7. Filter element according to any one of the preceding claims, characterized in that the filter medium (18) is bent.
[0008]
8. Filter element according to any one of the preceding claims, characterized in that an axial height with respect to the element axis (14), in particular a bending height (22), of the filter bellows (16) varies.
[0009]
9. Filter element according to any one of the preceding claims, characterized in that on at least one circumferential side of the filter bellows (16), which extends between the inflow side (28) and the flow side. flow (30), at least one end body, especially an end disc (32) is arranged.
[0010]
10. Filter element according to claim 9, characterized in that the at least one conductor thread (46, 48) is joined, especially in one piece, with the at least one final body (32).
[0011]
11. Filter element according to any one of the preceding claims, characterized in that the filter element (10) has at least one filter element retainer assembly (34) which is joined to the filter bellows ( 16) directly or indirectly, extending between the inflow side (28) and the outflow side (30) along at least a part of a circumference of the filter bellows (16) and having at least one retainer assembly (38) protruding from the filter bellows (16) transversely to the element shaft (14) from a radially inward position to a radially outward position.
[0012]
12. Filter housing (11) of a filter (13) for fluid, especially of an air filter, especially of a combustion engine, especially of a motor vehicle, which has at least one inlet (15) and at least one outlet (17) for fluid, in which at least one filter element (10), especially as defined in any one of claims 1 to 11, especially a flat filter element can be arranged in such a way that it separates. the at least one inlet (15) of the at least one outlet (17), and which has a housing shaft (25) which can be aligned for mounting the filter element (10) parallel or axially to a mounting direction ( 12) of the filter element (10) inside the filter housing (11), characterized in that the filter housing (11) has at least one thread guide (58, 60, 68, 70) for at least one conductive thread (46, 48) of the filter element (10) extending axially and radially towards the outer, on an inner side of the filter housing (11) circumferential to the housing axis (25).
[0013]
Filter (13) for fluid, especially air filter, especially of a combustion engine, especially of a motor vehicle, characterized in that it comprises a filter element (10) as defined in any one of claims 1 to 11 , and a filter housing (11) as defined in claim 12.

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法律状态:
2015-03-17| B03A| Publication of a patent application or of a certificate of addition of invention [chapter 3.1 patent gazette]|

2018-02-27| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|

2019-11-05| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|

2021-05-04| B06A| Patent application procedure suspended [chapter 6.1 patent gazette]|

2021-07-06| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|

2021-09-08| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 11/07/2014, OBSERVADAS AS CONDICOES LEGAIS. |

优先权:

申请号 | 申请日 | 专利标题

DE102013011614|2013-07-12|

DE102013011614.7|2013-07-13|

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