EP0782672A1 - Regulating device for displacement pumps - Google Patents
Regulating device for displacement pumpsInfo
- Publication number
- EP0782672A1 EP0782672A1 EP95932754A EP95932754A EP0782672A1 EP 0782672 A1 EP0782672 A1 EP 0782672A1 EP 95932754 A EP95932754 A EP 95932754A EP 95932754 A EP95932754 A EP 95932754A EP 0782672 A1 EP0782672 A1 EP 0782672A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston
- pressure
- channel
- choke
- spring
- 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
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, 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 group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, 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 group F04C18/08 or F04C18/22 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
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
- F04C14/24—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
- F04C14/26—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves using bypass channels
-
- 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
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Rotary Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4433598 | 1994-09-21 | ||
DE4433598A DE4433598A1 (en) | 1994-09-21 | 1994-09-21 | Control device for positive displacement pumps |
PCT/EP1995/003629 WO1996009475A1 (en) | 1994-09-21 | 1995-09-15 | Regulating device for displacement pumps |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0782672A1 true EP0782672A1 (en) | 1997-07-09 |
EP0782672B1 EP0782672B1 (en) | 1998-12-02 |
Family
ID=6528751
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95932754A Expired - Lifetime EP0782672B1 (en) | 1994-09-21 | 1995-09-15 | Regulating device for displacement pumps |
Country Status (8)
Country | Link |
---|---|
US (1) | US5810565A (en) |
EP (1) | EP0782672B1 (en) |
JP (1) | JPH10505889A (en) |
KR (1) | KR100344812B1 (en) |
BR (1) | BR9508971A (en) |
DE (2) | DE4433598A1 (en) |
ES (1) | ES2124589T3 (en) |
WO (1) | WO1996009475A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018059382A1 (en) * | 2016-09-28 | 2018-04-05 | 比亚迪股份有限公司 | Electric motor oil pump assembly, steering system and vehicle |
WO2018059385A1 (en) * | 2016-09-28 | 2018-04-05 | 比亚迪股份有限公司 | Electric motor oil pump assembly, steering system and vehicle |
EP3521627A4 (en) * | 2016-09-28 | 2019-10-09 | BYD Company Limited | Electric motor oil pump assembly, steering system and vehicle |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19651386B4 (en) * | 1996-12-11 | 2004-12-16 | Zf Friedrichshafen Ag | Vane pump |
JP3771675B2 (en) | 1997-06-24 | 2006-04-26 | 株式会社日立製作所 | Flow control device for positive displacement pump |
JP3656205B2 (en) * | 1997-06-25 | 2005-06-08 | 株式会社日立製作所 | Hydraulic pump for power steering system |
DE19745118B4 (en) * | 1997-10-11 | 2006-10-12 | Wabco Gmbh & Co.Ohg | Pressure generating equipment |
DE19745448C1 (en) * | 1997-10-15 | 1999-01-21 | Zahnradfabrik Friedrichshafen | Pressure pump for motor vehicle power steering |
DE19747341A1 (en) * | 1997-10-27 | 1999-04-29 | Zahnradfabrik Friedrichshafen | Displacement pump |
JPH11148480A (en) * | 1997-11-14 | 1999-06-02 | Mitsubishi Heavy Ind Ltd | Compressor |
DE19833373A1 (en) * | 1998-07-24 | 2000-01-27 | Zahnradfabrik Friedrichshafen | Supply flow regulating device for displacement pump, with movable sprung piston having throttle boring into which conical pin projects |
DE19833700A1 (en) * | 1998-07-27 | 2000-02-03 | Zahnradfabrik Friedrichshafen | Pressure control for hydraulic servo pump has a spring loaded control valve with a conical valve element to progressively close the hydraulic outlet with increasing pump pressure |
DE19909963B4 (en) * | 1999-03-06 | 2006-12-21 | Zf Friedrichshafen Ag | displacement |
DE102006016431A1 (en) * | 2006-04-07 | 2007-10-18 | Zf Lenksysteme Gmbh | Positive-displacement pump e.g. sliding vane pump, for motor vehicle, has high supply opening arranged at distance to low supply opening in circulation direction, where low supply opening has sufficient effective width |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2839003A (en) * | 1956-02-20 | 1958-06-17 | Thompson Prod Inc | Combination flow control and relief valve |
JPS5862394A (en) * | 1981-10-08 | 1983-04-13 | Jidosha Kiki Co Ltd | Oil pump |
JP2840087B2 (en) * | 1989-08-29 | 1998-12-24 | 株式会社ユニシアジェックス | Liquid pump |
JP2937500B2 (en) * | 1990-01-17 | 1999-08-23 | ツァーンラトファブリック フリードリッヒシャーフェン アクチェンゲゼルシャフト | Adjustment device for positive displacement pump |
JP2895169B2 (en) * | 1990-06-11 | 1999-05-24 | 株式会社ユニシアジェックス | Vane pump |
-
1994
- 1994-09-21 DE DE4433598A patent/DE4433598A1/en not_active Withdrawn
-
1995
- 1995-09-15 KR KR1019970701386A patent/KR100344812B1/en not_active IP Right Cessation
- 1995-09-15 JP JP8510574A patent/JPH10505889A/en not_active Ceased
- 1995-09-15 US US08/793,949 patent/US5810565A/en not_active Expired - Fee Related
- 1995-09-15 WO PCT/EP1995/003629 patent/WO1996009475A1/en active IP Right Grant
- 1995-09-15 EP EP95932754A patent/EP0782672B1/en not_active Expired - Lifetime
- 1995-09-15 ES ES95932754T patent/ES2124589T3/en not_active Expired - Lifetime
- 1995-09-15 DE DE59504439T patent/DE59504439D1/en not_active Expired - Lifetime
- 1995-09-15 BR BR9508971A patent/BR9508971A/en not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO9609475A1 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018059382A1 (en) * | 2016-09-28 | 2018-04-05 | 比亚迪股份有限公司 | Electric motor oil pump assembly, steering system and vehicle |
WO2018059385A1 (en) * | 2016-09-28 | 2018-04-05 | 比亚迪股份有限公司 | Electric motor oil pump assembly, steering system and vehicle |
EP3521627A4 (en) * | 2016-09-28 | 2019-10-09 | BYD Company Limited | Electric motor oil pump assembly, steering system and vehicle |
US11035386B2 (en) | 2016-09-28 | 2021-06-15 | Byd Company Limited | Motor oil pump assembly, steering system, and vehicle |
Also Published As
Publication number | Publication date |
---|---|
DE59504439D1 (en) | 1999-01-14 |
DE4433598A1 (en) | 1996-03-28 |
US5810565A (en) | 1998-09-22 |
KR100344812B1 (en) | 2002-11-07 |
JPH10505889A (en) | 1998-06-09 |
WO1996009475A1 (en) | 1996-03-28 |
KR970705707A (en) | 1997-10-09 |
ES2124589T3 (en) | 1999-02-01 |
BR9508971A (en) | 1997-11-11 |
EP0782672B1 (en) | 1998-12-02 |
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