EP0254721A1 - Flügelzellenpumpe. - Google Patents
Flügelzellenpumpe.Info
- Publication number
- EP0254721A1 EP0254721A1 EP86904170A EP86904170A EP0254721A1 EP 0254721 A1 EP0254721 A1 EP 0254721A1 EP 86904170 A EP86904170 A EP 86904170A EP 86904170 A EP86904170 A EP 86904170A EP 0254721 A1 EP0254721 A1 EP 0254721A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure plate
- pressure
- pump
- housing
- ring
- 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
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
Definitions
- the invention relates to a flight cell pump according to the preamble of claim 1.
- Such a pump design is known from DE-OS 32 14 688.
- This pump is designed so that a pressure plate on the input side of the drive shaft is acted upon by the delivery pressure.
- the pressure plate is supported on a so-called pump package consisting of a rotor, blades and cam ring.
- This pump package in turn bears against a further pressure plate inserted into a large opening in the pump housing.
- the pressure plate which also serves as the end cover 1, is sealed on its outer circumference in the housing and is in contact on one side with a retaining ring which engages in a groove in the housing opening.
- the drive shaft is mounted on the input side in the housing, penetrates the pressure plate located there and is additionally supported in the pressure plate closing the large opening.
- the pump package is held in contact with the other pressure plate by the pressure plate acted upon on the inlet side, so that the inevitable manufacturing tolerances are compensated for and the delivery losses are thus minimized.
- the pressure plate is also supported by springs which, in the start-up rabbit of the pump, provide mutual abutment of the pump components as long as there is still no sufficient delivery pressure. So that only a partial area of the pressure plate is effective with sufficient delivery pressure, it has a so-called pressure field limitation, which is achieved with the help of radial sealing rings.
- the one radial sealing ring is held in a relatively complicated seal carrier which is assembled with the drive shaft bearing and which enables the compensation of larger axial sealing tolerances.
- the invention is therefore based on the object of further reducing the construction costs of the pump and thus the manufacturing costs.
- the pump should also be as compact as possible, especially in the axial direction.
- the pressure plate which closes the larger opening, is pressed axially against an end face of the housing by screwing, this is fixed in both axial directions.
- the pressure plate can be manufactured with tighter tolerances, so that between the opposite pressure plate and the housing at least one axially resilient sealing plate acting on the latter pressure plate, which delimits a surface area that can be acted upon by the outlet pressure, can be provided.
- the sealing ring can take on an additional function, so that separate pressure springs on the pressurized pressure plate are unnecessary.
- a drive shaft 3 is inserted into a pump housing 1 through a small opening 2.
- the drive shaft 3 is supported in a roller bearing 4 on the input side and in a roller bearing 6 arranged in a pressure plate 5.
- the pressure plate 5 closes a larger opening 7 and therefore at the same time has the function of a housing cover.
- the drive shaft carries a rotor 8 on a spline. In radial slots of the rotor 8 are radially movable vanes 10, which slide along a cam ring 11.
- a pressure plate 12 lying on the side of the smaller opening 2 is supported on the pump package consisting of rotor, blades and cam ring.
- the pressure plate 5, the cam ring 11 and the pressure plate 12 are aligned with one another by pins 9.
- the pressure plate 12 has cutouts with pressure openings 13.
- the pressure zone of the pump lies in the area of the pressure openings 13.
- Delivery chambers (not shown in the drawing) between the vanes 10, the rotor 8 and the cam ring 11 are connected via a partially annular space 14 to a suction bore 15 connected to a tank.
- the pressure oil conveyed from the wings 10 to the pressure side passes through the pressure openings 13 and a narrow pressure chamber 16 into an outlet channel 17.
- This outlet channel 17 is hydraulically connected to a consumer, for example one, via a non-visible outlet bore ⁇ 's steering device connected.
- the consumer-dependent delivery pressure forms in the narrow pressure chamber 16, behind the pressure plate 12, which presses the pressure plate 12 against the pump package 8, 10, 11 and this against the outer pressure plate 5. This reduces the pump's internal gap losses to a minimum.
- Vane pumps of the type described so far are generally known.
- the pressure plate 5, which closes the larger opening 7, is pressed against an end-face contact surface 20 of the housing 1 and screwed to the housing 1 by means of bolts 21.
- the axial sealing ring 23 also ensures that the pressure plate 12 is held in the rest position on the pump package 8, -10, 11 and this in turn is held tightly against the pressure plate 5.
- the pump thus shows a perfect start-up behavior.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
WOPCT/EP85/00375 | 1985-07-26 | ||
EP8500375 | 1985-07-26 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0254721A1 true EP0254721A1 (de) | 1988-02-03 |
EP0254721B1 EP0254721B1 (de) | 1989-01-11 |
Family
ID=8165050
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19860904170 Expired EP0254721B1 (de) | 1985-07-26 | 1986-07-17 | Flügelzellenpumpe |
Country Status (6)
Country | Link |
---|---|
US (1) | US4772190A (de) |
EP (1) | EP0254721B1 (de) |
JP (1) | JP2576979B2 (de) |
BR (1) | BR8607154A (de) |
DE (2) | DE3661757D1 (de) |
WO (1) | WO1987000587A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1816250A1 (de) | 2006-02-02 | 2007-08-08 | Electrolux Home Products Corporation N.V. | Mitnehmer einer Trommel einer Wäschewaschmaschine |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5290155A (en) * | 1991-09-03 | 1994-03-01 | Deco-Grand, Inc. | Power steering pump with balanced porting |
US5267840A (en) * | 1991-09-03 | 1993-12-07 | Deco-Grand, Inc. | Power steering pump with balanced porting |
DE4326627B4 (de) * | 1993-08-07 | 2004-10-07 | Zf Friedrichshafen Ag | Flügelzellenpumpe |
WO1997049915A1 (de) * | 1996-06-21 | 1997-12-31 | Luk Fahrzeug-Hydraulik Gmbh & Co. Kg | Flügelzellenpumpe |
DE19651386B4 (de) * | 1996-12-11 | 2004-12-16 | Zf Friedrichshafen Ag | Flügelzellenpumpe |
DE502008002699D1 (de) * | 2007-09-19 | 2011-04-07 | Ixetic Bad Homburg Gmbh | Pumpeneinsatz |
CN101672279B (zh) * | 2009-10-17 | 2011-04-13 | 河北裕泰实业集团有限公司 | 二甲醚车用单级叶片泵 |
DE102011116869B4 (de) | 2011-10-25 | 2015-07-02 | Danfoss A/S | Flügelzellenmaschine |
DE102011116858B4 (de) * | 2011-10-25 | 2018-10-11 | Danfoss A/S | Flügelzellenmaschine |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3052189A (en) * | 1960-02-23 | 1962-09-04 | Thompson Ramo Wooldridge Inc | Pressure balancing and compensating device for an hydraulic pump |
GB1004007A (en) * | 1962-11-08 | 1965-09-08 | Ferry Diamond Engineering Comp | Improvements in and relating to rotary pumps |
DE1528975A1 (de) * | 1966-11-16 | 1969-09-25 | Bosch Gmbh Robert | Verdraengerpumpe |
US3664776A (en) * | 1970-08-17 | 1972-05-23 | Continental Machines | Variable volume vane pump |
JPS5249067Y2 (de) * | 1971-07-29 | 1977-11-08 | ||
JPS49109889A (de) * | 1973-02-23 | 1974-10-18 | ||
JPS5219904B2 (de) * | 1973-07-21 | 1977-05-31 | ||
JPS5238599B2 (de) * | 1973-08-07 | 1977-09-29 | ||
US3964844A (en) * | 1973-09-24 | 1976-06-22 | Parker-Hannifin Corporation | Vane pump |
US4242066A (en) * | 1978-08-24 | 1980-12-30 | Commercial Shearing, Inc. | Rotary pumps and motors and thrust plates therefor |
DE2913419C2 (de) * | 1979-04-04 | 1981-04-09 | Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen | Hochdruckpumpe |
DE3018649A1 (de) * | 1980-05-16 | 1981-11-26 | Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen | Hochdruckpumpe |
DE8033530U1 (de) * | 1980-12-17 | 1981-05-27 | Paulsen, Hartwig, 7500 Karlsruhe | Zahnradpumpe |
US4373871A (en) * | 1981-05-04 | 1983-02-15 | General Motors Corporation | Compact power steering pump |
US4424014A (en) * | 1981-06-08 | 1984-01-03 | General Motors Corporation | Power steering pump drive shaft seal area drain structure |
JPS5983724A (ja) * | 1982-11-06 | 1984-05-15 | Nippon Steel Corp | 表面疵がなく、リジングの小さいフエライト系ステンレス薄鋼板の製造方法 |
DE3242983A1 (de) * | 1982-11-20 | 1984-05-24 | Alfred Teves Gmbh, 6000 Frankfurt | Regelbare fluegelzellenpumpe |
JPS59180089A (ja) * | 1983-03-29 | 1984-10-12 | Jidosha Kiki Co Ltd | ベ−ンポンプ |
JPS59180088A (ja) * | 1983-03-29 | 1984-10-12 | Jidosha Kiki Co Ltd | ベ−ンポンプ |
JPS605796A (ja) * | 1983-06-22 | 1985-01-12 | Hitachi Ltd | 電動機の電源切換制御装置 |
-
1986
- 1986-07-17 BR BR8607154A patent/BR8607154A/pt not_active IP Right Cessation
- 1986-07-17 DE DE8686904170T patent/DE3661757D1/de not_active Expired
- 1986-07-17 US US07/026,443 patent/US4772190A/en not_active Expired - Lifetime
- 1986-07-17 EP EP19860904170 patent/EP0254721B1/de not_active Expired
- 1986-07-17 WO PCT/EP1986/000421 patent/WO1987000587A1/de active IP Right Grant
- 1986-07-17 JP JP61504131A patent/JP2576979B2/ja not_active Expired - Lifetime
- 1986-07-17 DE DE19863624173 patent/DE3624173A1/de not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
See references of WO8700587A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1816250A1 (de) | 2006-02-02 | 2007-08-08 | Electrolux Home Products Corporation N.V. | Mitnehmer einer Trommel einer Wäschewaschmaschine |
Also Published As
Publication number | Publication date |
---|---|
EP0254721B1 (de) | 1989-01-11 |
US4772190A (en) | 1988-09-20 |
WO1987000587A1 (en) | 1987-01-29 |
DE3624173A1 (de) | 1987-01-29 |
JPS63500731A (ja) | 1988-03-17 |
BR8607154A (pt) | 1988-04-19 |
JP2576979B2 (ja) | 1997-01-29 |
DE3661757D1 (en) | 1989-02-16 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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17P | Request for examination filed |
Effective date: 19871007 |
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AK | Designated contracting states |
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17Q | First examination report despatched |
Effective date: 19880527 |
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REF | Corresponds to: |
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GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) | ||
PLBI | Opposition filed |
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PLBI | Opposition filed |
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26 | Opposition filed |
Opponent name: ALFRED TEVES GMBH Effective date: 19890929 |
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26 | Opposition filed |
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R26D | Opposition deemed not to have been filed (corrected) |
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