EP2201250A1 - Pumpeneinsatz - Google Patents
PumpeneinsatzInfo
- Publication number
- EP2201250A1 EP2201250A1 EP08801190A EP08801190A EP2201250A1 EP 2201250 A1 EP2201250 A1 EP 2201250A1 EP 08801190 A EP08801190 A EP 08801190A EP 08801190 A EP08801190 A EP 08801190A EP 2201250 A1 EP2201250 A1 EP 2201250A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure plate
- pump insert
- insert according
- pump
- seal
- 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.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 7
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
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
- 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
- F04C2240/00—Components
- F04C2240/30—Casings or housings
Definitions
- the invention relates to a pump insert a vane pump without its own housing.
- Such pump inserts are used in various applications in existing machine housing, such. B. in a transmission housing of a motor vehicle or other housings that require a hydraulic supply used.
- the disadvantage here is that the fasteners of the pump insert in the corresponding housings by screws or cover or the like are costly, bulky and expensive.
- a pump insert of a vane pump without its own housing which is used in a transmission housing, such as a motor vehicle, wherein the pump insert a first pressure plate, a contour ring, a rotor, a drive shaft which drives the rotor, wings and a second Compression plate and is fixed to the second pressure plate by a locking ring a- xial in the gear housing.
- a pump insert according to the invention is characterized in that the first pressure plate is pressed axially against the contour ring and the second pressure plate and the securing ring by a pressure field.
- a pump insert in which the pressure field is annular. Furthermore, a pump insert is preferred in which the annular pressure field extends radially inwardly from the outer periphery of the first pressure plate.
- Another inventive pump insert is characterized in that the first pressure plate has two seals. Also preferred is a pump in which the first seal of the first pressure plate is arranged radially outward on the circumference and the second seal of the first pressure plate is arranged axially on the inside of the pressure field.
- a pump insert is preferred in which in the pressureless state, the second axially disposed seal is effective as an axial biasing element and presses the pump insert against the retaining ring in the pressureless state. This has the advantage that even in the unpressurized state, the pump insert is well sealed with low gaps and thus start-up problems can be avoided by leaks.
- a pump according to the invention is characterized in that the axial seal is designed as a combination seal consisting of a sealing and supporting element.
- the axial seal is designed as a combination seal consisting of a sealing and supporting element.
- separate spring devices are provided which press the pump insert against the retaining ring.
- Another pump according to the invention is characterized in that the second pressure plate has a radial seal on the outer circumference, which seals against the transmission housing. Also, a pump insert is preferred in which the second pressure plate in the storage area of the shaft has a shaft seal.
- a pump insert according to the invention is also distinguished by the fact that the support geometry for the securing ring groove in the gear housing and the contact surface on the second pressure plate are designed to be self-locking.
- the angles in the support region of the retaining ring are designed differently by substantially 5 degrees.
- a pump insert wherein the support angle in the housing is 25 degrees. Furthermore, a pump insert is preferred in which the support angle of the locking ring on the second pressure plate is 30 degrees.
- Figure 1 shows a partial section of a pump insert according to the invention in a transmission housing.
- FIG. 1 shows a partial cross section through a transmission housing 1 with a pump insert 5 according to the invention.
- a transmission housing 1 includes a stepped blind hole 3, in which the pump insert 5 is arranged.
- the pump insert 5 has a first pressure plate 7, a contoured ring 9, a rotor 11 and a second pressure plate 13.
- radially displaceable wings 15 are arranged, which run along with rotation of the rotor 11 with its upper wing edge on the contour of the contour ring 9.
- cells are created which enlarge or reduce, depending on the contour section, and thereby suck in and eject oil.
- the rotor 11 is driven by a drive shaft 17 by means of a toothing 19, wherein the drive shaft 17 in this case via a sprocket 21 or optionally via another drive element such. As gears or a belt drive is driven.
- the shaft 17 is thereby cantilevered in the second pressure plate 13. Also conceivable would be a storage in both printing plates.
- the pump insert 5 is fixed by a locking ring 23 axially in the gear housing 1, wherein in the gear housing 1, an approximately part-circular groove 25 is arranged, in which the retaining ring 23 is fixed, while resting on the second pressure plate 13 of the locking ring 23 on a slope 27.
- the first pressure plate 7 has a radial seal 29 and an axial seal 31, which seal a pressure field 33 between the transmission housing 1 and the first pressure plate 7.
- the pressure field 33 thus extends from the radial outer circumference of the first pressure plate 7 to the radial inner delimitation by the sealing means 31.
- the pressure plate 7 In the radially inner region of the seal 31 about the axis of the drive shaft 17, the pressure plate 7 is not acted upon by the pressure, so that the pressure field 33rd , which is arranged annularly around the pressure plate 7, substantially in the outer region of the pressure plate 7, an axial force against the contour ring 9 and the second pressure plate 13 applies, wherein the second pressure plate 13 then presses against the locking ring 23, which in turn compresses the axial forces initiates via the housing groove 25 in the transmission housing 1.
- the axial fixation of the pump insert 5 in the unpressurized state, ie out of operation, if no axial pressure field in the region 33 is present, is realized by the sealing means 31, which designed as axially biasing member with a corresponding spring action is.
- the sealing means 31 which designed as axially biasing member with a corresponding spring action is.
- the pump insert 5 is pushed somewhat deeper into the gearbox housing 1 for mounting the securing ring 23.
- a corresponding spring travel of the sealing device 31 is provided.
- the use of a combination seal consisting of a sealing element and a supporting element can also be useful in order to bridge the gap which has been enlarged on account of the enlarged mounting clearance.
- the geometry in the support region of the retaining ring 23 is shown in a magnification in the area A.
- the angles in the support region of the retaining ring 23 are made different in the gear housing 1 and on the second pressure plate 13, in this case with an angular difference of about 5 degrees.
- the locking ring 23 sets in the approximately semicircular groove 25 of the gear housing 1 at an angle 35 of about 25 degrees, while it rests on the slope 27 of the second pressure plate 13 at an angle 37 of about 30 degrees. This results in that the support region of the retaining ring 13 is designed to be self-locking.
- a pump insert 5 for a gear pump in vane type helps especially in this application and the space available space, with minimal construction costs and cost to attach the pump in the transmission.
- Particularly advantageous is the combination of a pump insert 5 without pump housing with one side acting on a pressure field axial force and derivative of the axial force by means of a retaining ring.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Rotary Pumps (AREA)
- Saccharide Compounds (AREA)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007044999 | 2007-09-19 | ||
PCT/DE2008/001367 WO2009036723A1 (de) | 2007-09-19 | 2008-08-19 | Pumpeneinsatz |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2201250A1 true EP2201250A1 (de) | 2010-06-30 |
EP2201250B1 EP2201250B1 (de) | 2011-02-23 |
Family
ID=40298738
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08801190A Active EP2201250B1 (de) | 2007-09-19 | 2008-08-19 | Pumpeneinsatz |
Country Status (6)
Country | Link |
---|---|
US (1) | US8425206B2 (de) |
EP (1) | EP2201250B1 (de) |
AT (1) | ATE499531T1 (de) |
DE (2) | DE502008002699D1 (de) |
ES (1) | ES2359879T3 (de) |
WO (1) | WO2009036723A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2463556B1 (de) * | 2009-08-04 | 2018-04-25 | JTEKT Corporation | Elektropumpeneinheit |
DE102011055020A1 (de) | 2010-11-23 | 2012-05-24 | Ixetic Bad Homburg Gmbh | Pumpeneinsatz |
DE102011017481B4 (de) | 2011-04-19 | 2024-02-15 | Mercedes-Benz Group AG | Pumpeinrichtung für eine Komponente, insbesondere ein Getriebe, eines Kraftwagens |
DE102012020705B4 (de) | 2012-10-23 | 2022-10-27 | Arian Hoffmann | Kraftfahrzeuggetriebevorrichtung mit einer Getriebeölpumpe |
DE102015210098A1 (de) | 2015-06-02 | 2016-12-08 | Zf Friedrichshafen Ag | Als Schnappring ausgeführter Sicherungsring |
DE102016200893A1 (de) | 2016-01-22 | 2017-07-27 | Magna Powertrain Bad Homburg GmbH | Pumpeneinsatz |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4373871A (en) * | 1981-05-04 | 1983-02-15 | General Motors Corporation | Compact power steering pump |
DE3624173A1 (de) * | 1985-07-26 | 1987-01-29 | Zahnradfabrik Friedrichshafen | Fluegelzellenpumpe |
DE3623421A1 (de) * | 1986-07-11 | 1988-01-14 | Vickers Systems Gmbh | Lenkhilfpumpe |
DE4137279C2 (de) * | 1991-11-13 | 2001-06-07 | Deutz Ag | Hubkolbenbrennkraftmaschine |
DE19632024C2 (de) * | 1996-08-08 | 1998-07-02 | Daimler Benz Ag | Ölpumpe für eine Brennkraftmaschine |
US6478559B2 (en) * | 2001-01-23 | 2002-11-12 | Visteon Global Technologies, Inc. | Balanced vane pump |
US6481990B2 (en) * | 2001-03-21 | 2002-11-19 | Delphi Technologies, Inc. | Hydraulically balanced multi-vane hydraulic motor |
WO2005001246A1 (de) * | 2003-06-30 | 2005-01-06 | Luk Automobiltechnik Gmbh & Co. Kg | In einem verbrennungsmotor integrierte pumpe |
-
2008
- 2008-08-19 ES ES08801190T patent/ES2359879T3/es active Active
- 2008-08-19 WO PCT/DE2008/001367 patent/WO2009036723A1/de active Application Filing
- 2008-08-19 EP EP08801190A patent/EP2201250B1/de active Active
- 2008-08-19 DE DE502008002699T patent/DE502008002699D1/de active Active
- 2008-08-19 AT AT08801190T patent/ATE499531T1/de active
- 2008-08-19 US US12/678,958 patent/US8425206B2/en active Active
- 2008-08-19 DE DE112008002391T patent/DE112008002391A5/de not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
See references of WO2009036723A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE502008002699D1 (de) | 2011-04-07 |
EP2201250B1 (de) | 2011-02-23 |
ATE499531T1 (de) | 2011-03-15 |
US8425206B2 (en) | 2013-04-23 |
DE112008002391A5 (de) | 2010-06-10 |
ES2359879T3 (es) | 2011-05-27 |
WO2009036723A1 (de) | 2009-03-26 |
US20100239450A1 (en) | 2010-09-23 |
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