EP2313656B1 - Pumpeneinheit - Google Patents
Pumpeneinheit Download PDFInfo
- Publication number
- EP2313656B1 EP2313656B1 EP09775988.0A EP09775988A EP2313656B1 EP 2313656 B1 EP2313656 B1 EP 2313656B1 EP 09775988 A EP09775988 A EP 09775988A EP 2313656 B1 EP2313656 B1 EP 2313656B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pump unit
- sleeve
- side plate
- drive shaft
- unit according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 claims description 27
- 238000007789 sealing Methods 0.000 claims description 10
- 239000000470 constituent Substances 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
- F04C15/0023—Axial sealings for working fluid
- F04C15/0026—Elements specially adapted for sealing of the lateral faces of intermeshing-engagement type machines or pumps, e.g. gear machines or pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
- F04C15/0034—Sealing arrangements in rotary-piston machines or pumps for other than the working fluid, i.e. the sealing arrangements are not between working chambers of the machine
- F04C15/0038—Shaft sealings specially adapted for rotary-piston machines or pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
- F04C14/06—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations specially adapted for stopping, starting, idling or no-load operation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
- F04C14/28—Safety arrangements; Monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
- F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2230/00—Manufacture
- F04C2230/60—Assembly methods
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/30—Casings or housings
Definitions
- the invention relates to a pump unit of a vane pump without its own housing according to the preamble of claim 1.
- Pump units of the type discussed here are known. They are used for example in gear housings of a motor vehicle or other housings which require a hydraulic supply.
- Such pumping units include a drive shaft, a rotor cooperating with the drive shaft for receiving vanes which slide along a contoured ring during rotation of the rotor, with two adjacent vanes enclosing cells which rotate as the vanes rotate Increase or reduce the contour section, sucking in and ejecting oil.
- a first and second side plate is provided, which are arranged laterally of the contour ring.
- the known Getriebepurnpenhimen have the disadvantage that they disintegrate during transport and thereby the transport in a housing or other security measures are required.
- Another disadvantage of the known pump units without their own housing is the relatively complex assembly, for example in a transmission housing.
- EP 0399387 discloses a vane pump wherein the mated contour ring and the side plates form a housing.
- Object of the present invention is therefore to provide a pump unit in which a disintegration during transport of the pump unit is avoided and also a particularly simple installation of the pump unit in a housing is possible.
- a pump unit with the features of claim 1 is proposed. It is characterized in that a sleeve mounted movably on the drive shaft is provided, which is located downstream of the second side plate in the axial direction of the pump unit. It is also characterized by the fact that a securing element for axially securing the sleeve is provided on the drive shaft, whereby a falling apart of the pump unit is avoided during transport. Furthermore, the pump unit is characterized a spring element which biases the second side plate relative to the transmission housing, wherein the spring element is an integral part of the pump unit.
- the individual elements of the pump unit are securely held together during transport and also ensure during assembly of the pump in a housing for secure installation of the second side plate on the contour ring, so start-up problems of the pump unit can be avoided.
- Another advantage of the pump unit proposed here is the particularly flexible use of the pump unit in that the spring element allows tolerance compensation for dimensional deviations.
- an embodiment of the invention which is characterized in that the securing element is a cooperating with the drive shaft snap ring.
- the securing element is a cooperating with the drive shaft snap ring.
- Another preferred embodiment of the invention is characterized in that the pump unit has a drive through. In this way, a speed query can be realized if, for example, two clutches to be controlled.
- An embodiment of the invention is also preferred, which is characterized in that the spring element is designed as a plate spring, which is supported on the one hand on the second side plate and on the other hand on the sleeve.
- the sleeve is then in turn preferably supported by a collar on the transmission housing, so that the spring element biases the second side plate relative to the housing, in particular with respect to the transmission housing.
- this embodiment when the sleeve in the axial direction movable on a Extension of the second side plate is mounted.
- the spring element in particular the plate spring is provided with openings, so that flow channels, which have the lowest possible flow resistance, are formed by the pressure outlets of the pump unit to a pressure chamber.
- the sleeve and the second side plate are integrally formed.
- an axial securing of the sleeve is preferably carried out by means of a securing element.
- the spring element is designed as a compression spring, preferably as a helical spring, in particular as a frusto-conical helical spring, which is supported on the one hand on the second side plate and on the other hand on a support means movably mounted on the sleeve.
- the support means may be arbitrary, for example, as a disc formed. It is also conceivable to introduce into the sleeve a groove in which one end of the coil spring is displaceable. It is crucial that also in this embodiment, the side plate is biased relative to the housing, so that when mounting the pump unit in a housing a secure system of the individual components is guaranteed to each other, so start-up difficulties of the pump unit can be avoided.
- a further preferred embodiment of the invention is characterized in that a first thrust bearing is realized by a cooperating with the rotor shaft collar and a second thrust bearing by a cooperating with the rotor retaining ring. In this way, when pulling or pushing the drive shaft, the rotor itself serves as a thrust bearing.
- an embodiment of the invention which is characterized in that a shaft collar is provided for the axial securing of the first pressure plate.
- a shaft collar is provided for the axial securing of the first pressure plate.
- an embodiment of the invention is preferred, which is characterized in that the radial sealing of the pump unit relative to the housing O-rings are provided, wherein the first side plate, the second side plate and the sleeve preferably cooperate with at least one O-ring.
- radial shaft seals are still provided for sealing pump parts which perform a relative rotation to each other, wherein preferably a radial shaft seal between the drive shaft and the first side plate and a second radial shaft seal between the drive shaft and the sleeve are provided.
- FIG. 1 shows a schematic sectional view of a pump unit 1 of a vane pump, which is arranged in a housing, here for example in a gear housing 3, for example. It comprises a drive shaft 5, which is non-rotatably connected to a rotor 7, for example via a toothing or the like. Furthermore, a contoured ring 9 is provided, which is arranged around the rotor 7 and which is surrounded by a first side plate 11 and a second side plate 13, which is penetrated by the drive shaft 5. The exact radial position of the side plates 11 and 13 and the contouring ring 9 to each other is ensured by pins 15 which penetrate the side plates 11 and 13 and the contour ring 9.
- the drive shaft 5 is driven by means of a drive wheel, here purely by way of example by means of a gear 17. However, it is also conceivable to use a sprocket, a belt drive or the like.
- the rotor 7 serves to receive a plurality of wings 19, which slide on a rotation of the rotor 7 about the rotation axis D of the drive shaft 5 on the inside of the contour ring 9 along.
- a suction region 21 is clearly visible, from which the vane pump sucks in hydraulic oil and conveys into a pressure space 25 via pressure outlets provided in the second pressure plate 13. From there, the hydraulic oil reaches a consumer.
- the further operation of a vane pump is sufficiently described in the prior art, so it will not be discussed further here.
- the pump unit 1 has a sleeve 27 which is arranged coaxially to the drive shaft 5 and axially displaceable on this. It is also the second side plate 13 in the axial direction, ie in the direction of the axis of rotation D, downstream of the pump unit 1, that is arranged on the opposite side of the drive side of the second side plate 13.
- a securing element 29 is provided, which is preferably designed as a snap ring and prevents slipping off of the sleeve 27 of the drive shaft 5 during transport of the pump unit 1.
- FIG. 1 makes it clear that the sleeve 27 is axially displaceably mounted on a projection 35 of the second side plate 13 with a first portion 31 in the transmission housing 3 and with a second portion 33. Between the extension 35 of the second side plate 13 and the second portion 33 of the sleeve 27, an O-ring seal 53 for radial sealing of the pump unit 1 is provided.
- the pump unit 1 also has a coaxial with the drive shaft 5 arranged spring element 39, which is supported on the one hand in a radially outer region with respect to the axis of rotation D on the second side plate 13 and on the other hand in a radially inner region of the sleeve 27.
- the spring element 39 is designed here as a plate spring and provided with openings 41 in order to ensure a fluid connection between the pressure outlets 23 and the pressure chamber 25.
- the openings 41 are preferably formed so that the flow resistance of the spring element 39 is as low as possible. It is conceivable, however, the formation of the spring element 39 as a frustoconical helical spring. Decisive is the formation of the spring element 39 as a compression spring which can bias the second side plate 13 relative to the housing.
- the shaft 5 has at its end facing away from the gear 17 on a drive 43, which is provided here purely by way of example with a pole 45 in order to realize a speed query.
- the pole wheel 45 preferably comprises permanent magnets which interact with a sensor for detecting the rotational speed of the drive shaft 5.
- a first radial shaft sealing ring 47 arranged between the first side plate 11 and the drive shaft 5 and a second radial shaft sealing ring 49 arranged between the sleeve 27 and the drive shaft 5 are provided. Since these are parts that perform a relative movement in the operation of the pump unit 1 to each other, the use of O-rings would be insufficient here. Furthermore, an O-ring seal 51 is provided for radial sealing between the first side plate 11 and the transmission housing 3. Also, the second side plate 13 is opposite the transmission housing 3 sealed by means of an O-ring seal 52 in the radial direction.
- Another O-ring seal 53 is provided in the region between the second portion 33 of the sleeve 27 and the extension 35 of the second side plate 13. Finally, for radial sealing nor an O-ring seal 55 between a portion 57 of the sleeve 27, which has a relation to the remaining sleeve 27 reduced diameter, and the transmission housing 3 is arranged.
- the drive shaft 5 is provided with a shaft collar 59, so that a drop of the first side plate 11 is prevented by the drive shaft 5.
- the pump unit 1 is formed as a compact unit, in which all elements are securely mounted on the one hand by the shaft collar 59 and on the other hand by the retaining ring 29 on the drive shaft 5 and falling apart of the pump unit 1 during transport is reliably avoided.
- the spring element 39 When transporting the pump unit 1, or in the non-installed state of the pump unit 1, the spring element 39 is more relaxed, so that the sleeve 27 is displaced on the drive shaft 5 and on the extension 35 in the axial direction and pressed against the retaining ring 29.
- the reduced-diameter portion 57 of the sleeve 27 is inserted into an opening 59 provided in the transmission case 3 until the sleeve 27 abuts against the transmission case 3 with a collar 61.
- the pump unit 1 can then be moved further into the transmission housing 3 until its optimum position is reached.
- the spring element 39 is compressed, so that the second side plate 13 is biased against the sleeve 27 and thus against the transmission housing 3 and pressed against the contour ring 9, which in turn is supported on the first side plate 11, in turn in axial Direction is secured by the housing part 48.
- FIG. 1 makes it clear that the sleeve 27 in the installed state of the pump unit 1 is no longer applied to the locking ring 29, but rather is arranged by the abutment of the collar 61 on the gear housing 3 at a distance of a few millimeters to this.
- the spring element 39 unfolds its full effect. It is also particularly advantageous on the pump unit 1 proposed here that the spring element 39 forms an integral part of the pump unit 1. It is also particularly advantageous that any manufacturing tolerances are compensated by the spring element 39, which can result in the provided for receiving the pump unit 1 bore in the transmission housing 3.
- the present pump unit 1 further comprises two thrust bearings in the event that there is a depression of the shaft in the direction of the arrow 63 or to a pulling of the drive shaft 5 in the direction of the arrow 65. Although such operating conditions should be avoided during operation of the pump unit 1, it is necessary to provide thrust bearings in the event that such an operating state occurs.
- a collar 67 is provided on the drive shaft 5 in the pump unit 1 for realizing a first thrust bearing, which is arranged on the left next to the rotor 7 is and with a displacement of the drive shaft 5 in the direction of arrow 63 engages with the rotor 7 and this entrains, so that the rotor 7 is displaced in the direction of the second side plate 13.
- a locking ring 69 arranged to the right of the rotor 7 is provided on the drive shaft 5, which entrains the rotor 7 in the direction of the arrow 65 when the drive shaft 5 moves and displaces it in the direction of the first side plate 11. It can be seen that the rotor 7 serves here as a thrust bearing which cooperates with the first side plate 11 and the second side plate 13 when the shaft is loaded axially.
- FIG. 2 shows a schematic sectional view of a second embodiment of a pump unit 1.
- the same parts are provided with the same reference numerals, so far as to the description to FIG. 1 is referenced.
- FIG. 2 In contrast to FIG. 1 is in FIG. 2 only a section of the pump unit 1 shown.
- a sleeve 27 ' is formed integrally with the second side plate 13.
- a spring element 39 ' is a coaxial with the drive shaft 5 arranged frustoconical helical spring, which is supported with one end in an outer radial region with respect to the rotation axis D on the side plate 13 and at its other end in a radially inner region of a support means 71st supported.
- FIG. 3 shows for clarity an enlarged view of the corresponding area of the pump unit 1.
- the support means 71 is movably mounted on the sleeve 27 '. It must be designed so that it can not fall off the sleeve 27 '. For this purpose, it can cooperate, for example, with a suitable securing element 72 introduced into the sleeve 27 ', which is embodied here by way of example as a securing ring.
- the support means 71 may, for example, as in FIG. 2 is shown formed as a disc which serves as an abutment for the spring element 39 '.
- the drive shaft 5 can either according to the embodiment according to FIG. 1 be provided corresponding locking ring, which prevents falling out of the sleeve 27 '. But it can also be provided a locking ring 73 which is disposed between the drive shaft 5 and the sleeve 27 'and by means of an elongated annular groove-shaped region, an axial displacement of the sleeve 27' allowed.
- the sleeve 27 ' is sealed by means of an O-ring seal 55 in the radial direction relative to the transmission housing 3.
- an O-ring seal 55 is provided in order to ensure a seal between the sleeve 27 'and the drive shaft 5, according to the first embodiment according to FIG. 1 .
- a compact pump unit 1 is provided, in which the risk of disintegration during transport by a securing element, in particular by the retaining ring 73 is avoided.
- the spring element 39 also fulfills the advantageous function that the second side plate 13 is biased relative to the transmission housing 3, so that a safe investment of the individual pump elements together and a start of the pump is ensured in a pressureless state and at the same time manufacturing tolerances are compensated.
- the sleeve 27 ' In the installed state of the pump unit 1 according to FIG. 2 the sleeve 27 'is in turn arranged in the opening 59 of the transmission housing 3. In contrast to the embodiment according to FIG. 1 However, the sleeve 27 'is not supported by a collar on the transmission housing 3, but the spring element 39' is supported on the support means 71 and thus directly on the transmission housing 3 from. As a result, the spring element 39 'exerts a force on the second side plate 13, so that the side plates 11 and 13 abut against the contour ring 9.
- a pump unit is provided by the present invention, which is characterized in that on the drive shaft movably mounted sleeve 27 or 27 'is provided, which is the second side plate 13 in the axial direction of the pump unit 1 downstream, and that a securing element 29 or 73 for axially securing the sleeve 27, 27 'on the drive shaft 5 is provided.
- the spring element 39 or 39 ' is an integral part of the pump unit 1 and biases the second side plate 13 relative to the transmission housing 3.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Rotary Pumps (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008038718 | 2008-08-12 | ||
PCT/DE2009/001012 WO2010017795A2 (de) | 2008-08-12 | 2009-07-20 | Pumpeneinheit |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2313656A2 EP2313656A2 (de) | 2011-04-27 |
EP2313656B1 true EP2313656B1 (de) | 2016-02-17 |
Family
ID=41669378
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09775988.0A Active EP2313656B1 (de) | 2008-08-12 | 2009-07-20 | Pumpeneinheit |
Country Status (6)
Country | Link |
---|---|
US (1) | US8932037B2 (ja) |
EP (1) | EP2313656B1 (ja) |
JP (1) | JP5734186B2 (ja) |
CN (1) | CN102089522B (ja) |
DE (1) | DE112009001697A5 (ja) |
WO (1) | WO2010017795A2 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012103888A1 (de) * | 2012-05-03 | 2013-11-21 | Zf Lenksysteme Gmbh | Verdrängerpumpe |
DE102013209877A1 (de) * | 2013-05-28 | 2014-12-04 | Mahle International Gmbh | Pendelschieberpumpe |
DE102014212022B4 (de) * | 2013-07-08 | 2016-06-09 | Magna Powertrain Bad Homburg GmbH | Pumpe |
US9617994B2 (en) | 2014-04-18 | 2017-04-11 | Delaware Capital Formation, Inc. | Pump with mechanical seal assembly |
DE102016204099B3 (de) * | 2016-03-11 | 2017-03-16 | Magna Powertrain Bad Homburg GmbH | Dichtungsanordnung für schaltbare Flügelzellenpumpe in Cartridge-Bauweise |
RU2659639C1 (ru) * | 2017-05-24 | 2018-07-03 | федеральное государственное бюджетное образовательное учреждение высшего образования "Алтайский государственный технический университет им. И.И. Ползунова" (АлтГТУ) | Роторно-поршневой двигатель внутреннего сгорания |
RU2666716C1 (ru) * | 2017-08-03 | 2018-09-11 | федеральное государственное бюджетное образовательное учреждение высшего образования "Алтайский государственный технический университет им. И.И. Ползунова" (АлтГТУ) | Роторно-поршневой двигатель внутреннего сгорания |
RU2707343C1 (ru) * | 2019-05-22 | 2019-11-26 | Николай Михайлович Кривко | Шеститактный роторно-лопастной двигатель внутреннего сгорания |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2558837A (en) * | 1944-04-13 | 1951-07-03 | Bendix Aviat Corp | Pump |
US2680031A (en) * | 1951-02-03 | 1954-06-01 | Lear Inc | Shaft sealing structure |
US3104530A (en) * | 1961-10-19 | 1963-09-24 | Gen Motors Corp | Accessory drive mechanism |
US3560118A (en) * | 1969-06-11 | 1971-02-02 | Derso W Palachik | Rotary motor or pump |
USRE26856E (en) * | 1969-07-23 | 1970-04-14 | Fluid energy translating device | |
JPS6126638Y2 (ja) * | 1980-12-27 | 1986-08-09 | ||
US4424014A (en) * | 1981-06-08 | 1984-01-03 | General Motors Corporation | Power steering pump drive shaft seal area drain structure |
US4419058A (en) * | 1981-06-08 | 1983-12-06 | General Motors Corporation | Hydraulic pump rotating group axial alignment structure |
US4415319A (en) * | 1981-08-11 | 1983-11-15 | Jidosha Kiki Co., Ltd. | Pump unit |
EP0399387B1 (en) * | 1989-05-24 | 1992-09-30 | Vickers Incorporated | Rotary vane machine |
US5290155A (en) * | 1991-09-03 | 1994-03-01 | Deco-Grand, Inc. | Power steering pump with balanced porting |
FR2723155B1 (fr) * | 1994-07-26 | 1996-10-11 | Nacam | Dispositif d'accouplement de deux arbres |
JPH0842464A (ja) * | 1994-07-29 | 1996-02-13 | Nippon Seiko Kk | 液圧ポンプ |
DE19802443C1 (de) * | 1998-01-23 | 1999-05-12 | Luk Fahrzeug Hydraulik | Pumpe |
DE19952605A1 (de) * | 1999-11-02 | 2001-05-10 | Luk Fahrzeug Hydraulik | Pumpe für ein flüssiges oder gasförmiges Medium |
CN1182330C (zh) * | 2000-02-14 | 2004-12-29 | 伊宝成 | 一种输油泵 |
JP2002130151A (ja) * | 2000-10-30 | 2002-05-09 | Unisia Jecs Corp | ベーンポンプ |
US6655936B2 (en) * | 2001-11-14 | 2003-12-02 | Delphi Technologies, Inc. | Rotary vane pump with under-vane pump |
CN1273740C (zh) * | 2002-11-19 | 2006-09-06 | 史学忠 | 汽车动力转向油泵 |
-
2009
- 2009-07-20 US US13/058,514 patent/US8932037B2/en active Active
- 2009-07-20 WO PCT/DE2009/001012 patent/WO2010017795A2/de active Application Filing
- 2009-07-20 EP EP09775988.0A patent/EP2313656B1/de active Active
- 2009-07-20 CN CN200980127120.5A patent/CN102089522B/zh active Active
- 2009-07-20 JP JP2011522379A patent/JP5734186B2/ja active Active
- 2009-07-20 DE DE112009001697T patent/DE112009001697A5/de not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
WO2010017795A3 (de) | 2010-07-15 |
JP5734186B2 (ja) | 2015-06-17 |
CN102089522B (zh) | 2014-04-23 |
JP2011530668A (ja) | 2011-12-22 |
CN102089522A (zh) | 2011-06-08 |
WO2010017795A2 (de) | 2010-02-18 |
US20110211984A1 (en) | 2011-09-01 |
US8932037B2 (en) | 2015-01-13 |
DE112009001697A5 (de) | 2011-04-07 |
EP2313656A2 (de) | 2011-04-27 |
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