CA2229056A1 - Three stage self-regulating gerotor pump - Google Patents
Three stage self-regulating gerotor pumpInfo
- Publication number
- CA2229056A1 CA2229056A1 CA002229056A CA2229056A CA2229056A1 CA 2229056 A1 CA2229056 A1 CA 2229056A1 CA 002229056 A CA002229056 A CA 002229056A CA 2229056 A CA2229056 A CA 2229056A CA 2229056 A1 CA2229056 A1 CA 2229056A1
- Authority
- CA
- Canada
- Prior art keywords
- bypass
- ports
- load
- regulating
- gerotor pump
- 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
- 239000012530 fluid Substances 0.000 abstract 3
- 239000002826 coolant Substances 0.000 abstract 1
- 239000010720 hydraulic oil Substances 0.000 abstract 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
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
- F04C14/10—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by changing the positions of the inlet or outlet openings with respect to the working chamber
- F04C14/12—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by changing the positions of the inlet or outlet openings with respect to the working chamber using sliding valves
-
- 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
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)
- Multiple-Way Valves (AREA)
Abstract
A gerotor pump is described for use with non-compressible fluids such as automotive coolant or hydraulic oil. The pump includes three separate pump outlet ports, a bypass return passage, and an integral four position spool valve. Increasing back pressure from a downstream load is sensed by the spool valve which moves accordingly to restrict the fluid supplied. In the first position a full flow fluid is supplied to the load from all three ports. In the second position one port is vented to the bypass and the flow from the other two ports is directed to the load. In the third position two ports vent to bypass, and one port drives the load. In the fourth position all ports vent to bypass. In each case flow vented to bypass is not first compressed, permitting a smaller motor to be used.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CA1995/000481 WO1997007337A1 (en) | 1995-08-14 | 1995-08-14 | Outlet pressure control for internal gear pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2229056A1 true CA2229056A1 (en) | 1997-02-27 |
| CA2229056C CA2229056C (en) | 2002-07-02 |
Family
ID=4173104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002229056A Expired - Lifetime CA2229056C (en) | 1995-08-14 | 1995-08-14 | Three stage self-regulating gerotor pump |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0845080B1 (en) |
| JP (1) | JPH11510871A (en) |
| AT (1) | ATE197729T1 (en) |
| AU (1) | AU3159795A (en) |
| CA (1) | CA2229056C (en) |
| DE (1) | DE69519482D1 (en) |
| WO (1) | WO1997007337A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5983109A (en) | 1997-02-03 | 1999-11-09 | Northern Telecom Limited | Method and apparatus for using advanced positioning systems in cellular communications networks |
| US6113360A (en) * | 1998-07-27 | 2000-09-05 | Ford Motor Company | Gerotor pump |
| DE102012207259A1 (en) * | 2012-05-02 | 2013-11-07 | Robert Bosch Gmbh | Internal gear pump |
| JP6487749B2 (en) * | 2015-03-30 | 2019-03-20 | 株式会社Ｓｕｂａｒｕ | Oil pump |
| JP6491514B2 (en) * | 2015-03-30 | 2019-03-27 | 株式会社Ｓｕｂａｒｕ | Oil pump |
| CN109469528A (en) * | 2018-12-28 | 2019-03-15 | 杭州电子科技大学 | A kind of change discharge capacity inner-rotor-type lubricating oil pump |
| US11795948B2 (en) | 2022-01-21 | 2023-10-24 | Hamilton Sundstrand Corporation | Stacked gerotor pump pressure pulsation reduction |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4022551A (en) * | 1972-06-13 | 1977-05-10 | Aikoh Co., Ltd. | Variable capacity type gear pump |
| GB2038931B (en) * | 1978-12-13 | 1982-12-22 | Hobourn Eaton Ltd | Positive displacement pump systems |
| JP2598396B2 (en) * | 1985-05-09 | 1997-04-09 | バルマ−ク アクチェンゲゼルシャフト | Internal combustion engine with lubricating oil pump and lubricating oil passage |
| DE3824398C2 (en) * | 1987-07-23 | 1993-11-18 | Barmag Barmer Maschf | Lubricating oil pump |
| DE3913414A1 (en) * | 1989-04-24 | 1990-10-25 | Walter Schopf | Variable-delivery rotary-vane pump - has compression zone in sections supplying separate hydraulic circuits |
| JPH05263770A (en) * | 1992-03-24 | 1993-10-12 | Unisia Jecs Corp | Oil pump |
-
1995
- 1995-08-14 DE DE69519482T patent/DE69519482D1/en not_active Expired - Lifetime
- 1995-08-14 AU AU31597/95A patent/AU3159795A/en not_active Abandoned
- 1995-08-14 WO PCT/CA1995/000481 patent/WO1997007337A1/en active IP Right Grant
- 1995-08-14 AT AT95927609T patent/ATE197729T1/en not_active IP Right Cessation
- 1995-08-14 JP JP9508763A patent/JPH11510871A/en active Pending
- 1995-08-14 CA CA002229056A patent/CA2229056C/en not_active Expired - Lifetime
- 1995-08-14 EP EP95927609A patent/EP0845080B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE69519482D1 (en) | 2000-12-28 |
| EP0845080A1 (en) | 1998-06-03 |
| ATE197729T1 (en) | 2000-12-15 |
| AU3159795A (en) | 1997-03-12 |
| CA2229056C (en) | 2002-07-02 |
| EP0845080B1 (en) | 2000-11-22 |
| WO1997007337A1 (en) | 1997-02-27 |
| JPH11510871A (en) | 1999-09-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20150814 |