• 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:
    The invention relates to a venting device at a reservoir (1) for a hydraulic system, comprising a return line connection (2), an air separator element (10) having a flow-permeable wall through which hydraulic fluid arriving from the return line connection is passed. For efficient deaeration, the air separator element (10) has an internal / external configuration comprising two mutually accommodated parts where one part (10B) is so occupied in the other (10A) and the parts are oriented so that a descending (20) and ascending channel (21 ) is formed, that a flow-permeable wall (28, 30: 1-30) is arranged in one of said channels, that the rising channel (21) is provided with a flow outlet (31, 36) in an upper end with which it the ascending channel communicates with a main chamber (6) included in the reservoir (1), and that the return line connection (2) is connected to an upper end of the descending channel (20). (f! g. 2)
    公开号:SE1551467A1
    申请号:SE1551467
    申请日:2015-11-13
    公开日:2017-05-14
    发明作者:Hahlin Torbjörn
    申请人:Lapplands Teknik Ab；
    IPC主号:
    专利说明:

    'inLute drain at a reservoir for a hydraulic systemThe present invention relates to an air separator or venting device at a single reservoir for a new hydraulic system according to the preamble of claim i.
    It is well known that air or gas entrapped in the liquid or fluid (hydrauloija) circulating in new drain systems tends to create bubbles which can damage the various pre-cutters included in the hydraulic system. Cavitation in pumps is particularly serious. The bubble size increases as the vacuum increases in relation to the surface tension of the liquid. The vacuum is mainly generated in pumps due to their suction effect. To avoid the problems mentioned, hydraulic systems, usually a hydraulic tank or oil reservoir, are equipped with some type of air separator. Effective air separation not only reduces the risk of damage due to the mentioned cavitation, but reduces the power requirements of the new hydraulic system at the same time as the precision and accuracy of the hydraulic system is improved.
    Air-the flow rate in the system reservoir shall be so low that air respThe respective gas separation is usually based on the fact that gas bubbles must have time to rise to the surface, which entails requirements for relatively large reservoirs. Since the available space for the reservoir of the hydraulic systems is limited in many cases, which is especially the case with mobile hydraulics, the problem of air separation becomes even more obvious. in mobile hydraulics, the combination of limited oil reservoir volume and high flow rate is normally always desirable.
    To be effectiveflow rate in a reservoir, it is known to use configurations withprovide separation in case of need for high rails or the like which carry liquid from a return line connection through a flow-through wall capable of atomizing gas bubbles occurring in the liquid. By the term flow-through wall is meant hereinafter a fine-mesh configuration or perforated. which slows down the velocity of the arriving fluid and reduces the occurrence of turbulence in the net openings in the net or the plate, the size and shape of the gas bubbles are finely divided and released when they pass and thus have time to depart.
    Since the hydraulic oil in a closed system continuously passes through the air separation, a final value is obtained which becomes ever higher, ie. a smaller amount of gas bubbles in the hydraulic oil occurs in finer mesh meshes used because the gas bubbles are atomized into the mesh size. However, the pressure drop due to the configuration will increase, which is not desirable as it leads to other problems, for example, overpressure occurring in parts of the system which can result in damage, especially at the start of the call.
    To datespace consuming and inefficient. A significant problem has been that they just work just fineknown air separators at reservoirs for hydraulic systems have beenCziUsersiiegüesktopihydraultankiii51109 besk o patentkravoocx1G2just as iuftavskiiiare. The combined effect of the air separator also acting as a diffuser with the task of effectively reducing the velocity of the hydraulic fluid and the behavioral disturbances so much that the gas bubbles have time to escape before the hydraulic fluid is returned to the hydraulic system has been lacking.
    The object of the present invention is therefore to provide an efficient separation device for a reservoir in a hydraulic system which offers a combination of low voyage requirement and high flow rate.
    This object of the invention is achieved by an air separating device which exhibits the features and characteristics stated in claim 1.
    Further advantages of the invention appear from the subclaims.
    Due to the fact that the return line is formed in a configuration comprising two interconnected members (one in the other) which bring hydraulic fluid, to pass from the return line connection 2 forcibly in a descending line channel to pass from an inside of the configuration to a rising channel in an outside thereof. during the passage of one or more flow-through walls at different levels and thus in several stages in the height the kangas bubbles are effectively atomized and by diffuser action the liquid is slowed down so much that the gas bubbles have time to escape before the liquid returns to the hydraulic system.In the following, the invention is described in more detail with reference to an exemplary embodiment shown in the accompanying drawings; on viika;Fig. 1 shows a perspective view obliquely from above of a reservoir for a hydraulic system provided with a venting device according to the invention,Fig. 2 shows a perspective view of the reservoir in Fig. 1 in a larger skate and with broken away parts so that the venting device according to the invention can be seen more clearly,Fig. 3 shows a first side view of the reservoir with broken dies so that the venting device according to the invention can be seen more clearly, andFig. 4 shows a second side view of the reservoir with broken dies so that itThe invention according to the invention is more clearly shown. in the hydraulic tank shown, the reservoir i has a return line connection 2 and a suction line connection 3 for connection to a hydraulic system not shown in more detail, for example a mobile hydraulic system included in vehicles which support said reservoir.The reservoir i has a fitted breathing opening 4 on an upper side of a high-rise one there to allow oiievoiymf changes in the tank. internally, the reservoir is equipped with a device designated a separate separator or a lifting device which will be described in more detail below.As best seen by tig. 2 is the reservoir in divided into two chambers viika includesa main compartment 6 which is substantially occupied in an upper part of the reservoir and aC: tusersiiegiibesktopihydrauitanktt51109 besk o patentkravdocx3iuftavskiijarrum 7 beiäget i en nedre dei av reservoir. As can be seen, a lower compartment 6 of the lower reservoir is located next to the air separator hose 7. The conduit connection to the return line 2 opens into a high upwardly inclined inlet of the air separator hose 7 while the suction line hose 3 opens into a distance down the main opening from the mouth opening to the main opening. the main room 6 in this day also serves as an expansion room. in Fig. 3 and 4, the oil level of the reservoir during normal operation is indicated by the dashed line 8, where 9 in fig. 1 denotes a level level.
    As shown in Fig. 2, the separator device 5, which is located in the lower part of the reservoir 1 in the separator space 7, comprises a separator element 10 with a configuration comprising two mutually accommodated parts 10A, 105 (one in the other).
    Such an internal / external configuration in the present exempted embodiment consists of a vent housing 10A housed in the main space ö of the reservoir 1, next to it, and a return pipe 1GB accommodated in the housing for receiving return flow G2 from said hydraulic system in an upper end of the return pipe. The defrost housing 10A and the return tube 1GB are oriented so that they extend together along a substantially vertical or straight axis axis indicated by a dotted center line C-G.Referring also to Figs. 3 and 4, the vent housing 1ÛA has a substantially rectangular cross-sectional shape defined in the side by a vertical riser surface 11 extending with two opposite side walls 12, 13 defined by two facing and at the ends joined (Figs. the outer boundary walls form the lower dei of the reservoir 1.
    The riser plate 11 arranged down in the reservoir 1 forms a meian wall which extends from a bottom plate 16 at the point where it is connected to welds, and further upwards to be separated with its upper edge a piece below a plate portion 1 booked in a right angle which together with an end plate 18, widening and joined to said bookadepiåtparti, bites a head of the iuftavskiijarrummets' in the upper side.
    The return tube 1GB has a substantially non-circular cylindrical cross-sectional shape and is so received in the vent housing 10A that a channel in the outer passage channel for the liquid, hereinafter referred to as the rising channel 21, is delimited by the vertical riser plate 11, and the part of the baths. The return tube 1GB delimits an inlet of the liquid, hereinafter referred to as descending channel 20. Said descending and ascending channel 20, 21, respectively, is designated for the shot of simplicity with flow arrows in Fig. 2 and refers to the downward and upward direction of movement of the flow.
    The return tube 1GB extends from the bottom 16 of the reservoir and further up through the central opening of a release liner 22, which is releasably fixed in the end liner 18 via screws or boot joints, to be sealed at its upper end with a tie liner 25. The upper end of the closing return tube 198 is biindfiäns 25 releasably fastened with a screw driverC: Userstiegmesktopmydrauitanidt 51109 besk o patentkratndock4boot connection 26. Return pipe 1GB and circumferential weld joint that extends along the net in a gas and liquid sealing mannerThe fixtures 22 are interconnected via athe periphery of a contact area between the mesh wall of the 22 cm central needle opening and the 1GB outside of the return tube.
    Said descending and ascending kanai 20 resp. 21 ie. is a flow-over-connecting connection via a portion at a lower end of the return tube 1GB as a terminating seal against the base plate 16. Said lower portion of the return tube 1GB is formed as a vertically oriented annular flow-through wall 28 and allows liquid to pass in the direction of the direction of retrieval. kanai 20 and further out tiit the ascending kanaien 21. Bet should be understood that the return tube 1GB piidar ettiösgöröart aggregat that can be iösgörs and enkeit can be lifted out of the reservoirensuftavskiijningsrum T, exempeivis for inspection, byte eiier cleaning.
    As described above, in the inner galley configuration according to the invention, trout are descended with descending and ascending channel 20, respectively. 21, new fluid for forced from said return line connection 2 to be forcibly flowed into the sinking channel of the return pipe by one configuration 10A, the return flow G2 leading into an upper end of the sinking channel 20 being caused to move downwards as illustrated by the lines illustrated in the drawing. from an inside of the configuration in a lower end of the descending channel, is transferred to the rising channel 2.1 in an outside thereof, delimited by said first 10A and second configuration 1GB, i.e. in a space defined by the return tube 1GB and the vent housing 10A, the feed moving upwardsfiödesgenomsiäppiiga meilanväggar Söfi, 302 - 30n.passes an eiier a on oiika levels in nöjdied beiägna horisontetiaAs mentioned above, the rising channel 21 is repelled at its upper end by the normal end plate 18 and said channel communicates an upper end with the main space ö of the reservoir 1 via a first die opening 31 of a tenth outlet folded delution, bounded between the vertical edge of the riser 11 and the lower edge of the riser 11. plate part 1 and the end plate 18, merges into a flow collection space 32. The first diaphragm 31 reaches its distribution in a vertical plane and forms a passage from the rising channel 21 to the said flow collection space 32.
    Said space collecting space 32 is delimited by a vertical flow-through side wall 33 which is parallel to the vertical riser plate 11 and located at a distance outside it with respect to the rising channel 21, and a north-side passage through a bottom wall 34 which is formed by a wallmelian walls asthe bottom of the feed collection chamber 32.
    CttUserstiegiišesktopurydrauitankti51109 besk o patentkravdocx1G5The vertical flow-permeable side wall 33 and the angularly backed plate portion 17, which supports the end plate 18, delimit between them a slit-like second-day outlet 36 of said flow-out opening. This second type of diaphragm 36 extending in the central artery allows on the one hand the tiny gas bubbles 37 'in the liquid which have accumulated in the liquid collection space 32 and on the other hand the distributed gas bubbles 3 collected below the horizontal end plate 18 to move with the spatula-like second die outlet 38 to further freely ascend in the bow chamber 6 towards the expansion space for ventilation via the breathing opening 4. The second sub-outlet 36 which extends in a horizontal plane forms a passage allowing gas bubbles to stand said tithe assembly chamber 32 and further up in the reservoir's expansion side tube.
    The above-described discharge process for the finely divided gas bubbles 3 is illustrated in FIG. 4.
    As shown in Fig. 2, during the operation of the new hydraulic system, a liquid volume denoted by C22 is sucked out via the suction line connection 3 located in an outlet in the lower part of the new space 6. The flow collection tube 32 communicates with said suction line connection 3 via the vertical d-transparent permeable partition wall 33 and the horizontal flow-permeable partition wall 34, which means that the substantially drained liquid crank which is sucked out of the flow-collecting spacetlödesgenemsiäppiiga melian walls 33, 34 delimitingthe storage chamber towards the new space 6 before the volume of liquid near the suction connection 3. The flowable side wall 33 and the bottom wall 34, form a cut-off barrier between the first partial outlet 31 of the solder outlet and the suction line arrangement 3 arranged in a lower part of the reservoir's new space 6.
    In this case, any remaining gas bubbles are finely divided in the liquid, it is caused to move upwards along the vertical temperature-releasable median wall 33, and further upwards towards the gap-like upper flow-out surface 36 to be then freely, as illustrated in fig. 4 with the reference numeral 37, ascend towards the expansion space.
    Inventions: is not limited to the one described in the drawings shown in the drawings, which can be modified and modified in a number of different ways within the scope of the following invention.patent stated the idea of upliftment.n. a - ee- "Nwww-f-" mvC: Userstieg fl lesktopmydrauitanklt51109 besk n patentkravddtzx
    权利要求:
    Claims (1)
    [1]
    REQUIRED A venting device at a reservoir (t) for a hydraulic system, comprising a return discharge connection (2), a tuft separating element (10) having a flow-through wall through the outlet of the return discharge application and the receptacle in which the reservoir is located in the reservoir. tü) has an internal / external configuration comprising two interconnected parts where one part (108) is so busy with the other (tOA) and the parts are oriented so that a descending (20) and ascending channel (21) is bididized, that a flow-through wall ( 28, 30: 't-30: n) is arranged in at least one of said channels, that the rising channel (21) is provided with a flow outlet (31, 36) at an upper end with which the rising channel communicates with one in the reservoir (t ), and that the return line connection (2) is connected to an upper end of the lowering channel (20). Dehumidifying device according to claim t, comprising a plurality of flow-through walls (3021, 302 - 30n) which are arranged at different levels in height in the ascending channel (21). A venting device according to any one of claims 1-2, comprising a flow passage flap wall (28) located at a lower end of the sinking channel (20) and allowing liquid liquid to be transferred in a relatively flow direction transverse direction out from the sinking lower channel and further into the lower channel and further. rising canals (21). Dehumidification device according to any one of claims 1-3, wherein said inner gallows exterior configuration of interlocking dies is received in a lower die of the main tube (6) of the spare door (t). A venting device according to any one of claims 1-4, wherein the feed outlet (31,365) comprises a first and a second die outlet of which the first outlet (31) has its extension in a vertical plane and provides a passage from the rising channel (21) to a feed collection run (32). ) and the second daytop (36) extends in the horizontal alpine ridge, it provides a passage from said flow reservoir (32) of the viewing reservoir (t) of the viewing reservoir (t). C> Users ieg Desktop hydraultanktt51169 besk o patentkrai / .doox 1G 10. 11. 12. 7 Drainage device according to claim 5, wherein the feed collection space (32) is delimited from the main space (d) of the reservoir by a feed-transparent side wall (33) and bed wall (34). ), some walls provide a separating barrier from the first opening opening (31) and a suction opening arrangement (3) arranged in a lower compartment of the lower reservoir (S). Leveling device according to claim d, wherein the fiddle genuine surface side wall (33) is vertically oriented and the bottom wall (34) is horizontally oriented. A discharge device according to any one of claims 5-7, wherein the rising channel (21) is delimited at its upper end by an end pawl (18) and that the first diaphragm opening (31) of the suction opening, which has its extension in a vertical pawl, is delimited by said end pawl and in the outer configuration included vertically oriented ladder ladder (11). The discharge device according to claim 8, wherein the second diaphragm (36) of the flow outlet having its distribution in a horizontal area is delimited from the side wall (33) of the flow collection space (32) and the end cap 18 of the rising channel (21). A discharge device according to any one of the claims, wherein the inner configuration has an upper end portion extending through extending through an opening in (21) (18) and the return device (2) is provided. the upper end portion of the rising channel which upper end portion of the venting device according to any one of claims 1-10, wherein said inner / outer configuration of interlocking dies comprises a vent housing (10A) housed in a lower portion of the reservoir (1) main body and this received return door (165) . 1-11, is a transient view of a peripheral egg (28, 30: 1 ~ 30: n, 33, 34) of periored egg with Aviuttningsanordning according to any one of the claims comprising a haiöponingar provided piát. ve- »s - svwwv-r-ohwv-r-v» C: iUsars iegmesktopirhydrauitank 151 1139 besk o patentkravdoox
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    同族专利:
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    SE541197C2|2019-04-30|
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    引用文献:
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    SE460985B|1988-03-08|1989-12-11|Karl Erik Mattsson|SETTING TO REDUCE PRESSURE CASE DURING FLUID PASSAGE AND RESERVE TO HYDRAULIC SYSTEM FOR CIRCULATION OF A FLUID|
    JP5550576B2|2010-02-03|2014-07-16|株式会社ユーテック|Oil tank|
    US8491707B2|2010-05-24|2013-07-23|Helgesen Design Services, Llc|Fluid storage tank configured to remove entrained air from fluid|
    CN203730419U|2014-01-03|2014-07-23|柳州柳工挖掘机有限公司|Hydraulic oil tank|CN109401829A|2017-08-17|2019-03-01|绍兴齐英膜科技有限公司|A kind of device and technique of hydraulic oil deep dehydration|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1551467A|SE541197C2|2015-11-13|2015-11-13|Venting device at a reservoir for a hydraulic system|SE1551467A| SE541197C2|2015-11-13|2015-11-13|Venting device at a reservoir for a hydraulic system|
    PCT/SE2016/051029| WO2017082796A1|2015-11-13|2016-10-21|Air separator to a reservoir for a hydraulic system|
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