EP0231429A3 - Gear pump - Google Patents
Gear pump Download PDFInfo
- Publication number
- EP0231429A3 EP0231429A3 EP86111453A EP86111453A EP0231429A3 EP 0231429 A3 EP0231429 A3 EP 0231429A3 EP 86111453 A EP86111453 A EP 86111453A EP 86111453 A EP86111453 A EP 86111453A EP 0231429 A3 EP0231429 A3 EP 0231429A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- gear pump
- gear
- 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
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
- F04C14/04—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations specially adapted for reversible machines or pumps
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19853543488 DE3543488A1 (en) | 1985-12-09 | 1985-12-09 | GEAR PUMP |
DE3543488 | 1985-12-09 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0231429A2 EP0231429A2 (en) | 1987-08-12 |
EP0231429A3 true EP0231429A3 (en) | 1987-11-19 |
EP0231429B1 EP0231429B1 (en) | 1988-12-28 |
Family
ID=6288025
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86111453A Expired EP0231429B1 (en) | 1985-12-09 | 1986-08-19 | Gear pump |
Country Status (4)
Country | Link |
---|---|
US (1) | US4743180A (en) |
EP (1) | EP0231429B1 (en) |
JP (1) | JPS62142881A (en) |
DE (1) | DE3543488A1 (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2214987B (en) * | 1988-02-05 | 1992-09-30 | Petter Refrigeration Ltd | Reversible unidirectional flow gear pump. |
US5085187A (en) * | 1991-03-11 | 1992-02-04 | Chrysler Corporation | Integral engine oil pump and pressure regulator |
HU217275B (en) * | 1994-02-24 | 1999-12-28 | Rába Rt. | Reverser closing slide-valve pump mainly for circulating of lubricant of driving devices |
US5655983A (en) * | 1995-04-28 | 1997-08-12 | Dana Corporation | Hydromechanical system for limiting differential speed between differentially rotating members |
US5702319A (en) * | 1995-10-13 | 1997-12-30 | Dana Corporation | Hydromechanical system for limiting differential speed between differentially rotating members |
US5711408A (en) * | 1996-05-09 | 1998-01-27 | Dana Corporation | Reversible gerotor pump |
GB2342396B (en) * | 1998-08-15 | 2002-04-24 | Lucas Ind Plc | Pumps |
US6702703B2 (en) | 2001-01-18 | 2004-03-09 | Dana Corporation | Lubrication pump for inter-axle differential |
DE102014115548A1 (en) | 2014-10-27 | 2016-04-28 | Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg | Internal gear pump and pumping method |
DE102015112664C5 (en) | 2015-07-31 | 2022-11-17 | Ebm-Papst St. Georgen Gmbh & Co. Kg | gerotor pump |
DE102016121240A1 (en) * | 2016-11-07 | 2018-05-09 | Nidec Gpm Gmbh | Electric gerotor pump and method of making same |
CN110578685A (en) * | 2019-10-21 | 2019-12-17 | 中车戚墅堰机车车辆工艺研究所有限公司 | Transfer pump, gear box, vehicle and ship |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3583839A (en) * | 1969-08-20 | 1971-06-08 | Emerson Electric Co | Automatic distortion control for gear type pumps and motors |
DE2742821A1 (en) * | 1977-09-23 | 1979-03-29 | Zahnradfabrik Friedrichshafen | GEAR PUMP WITH CONSTANT CONVEYOR DIRECTION WHEN CHANGING DRIVE DIRECTION |
US4171192A (en) * | 1978-05-05 | 1979-10-16 | Thermo King Corporation | Eccentric positioning means for a reversible pump |
US4193746A (en) * | 1978-02-16 | 1980-03-18 | Westinghouse Electric Corp. | Reversible gerotor pump |
DE2936066A1 (en) * | 1978-09-12 | 1980-03-20 | Concentric Pumps Ltd | Gear pump with gear ring rotating in eccentric bush - has stops limiting its rotation and friction elements between ring and bush |
US4222719A (en) * | 1979-01-02 | 1980-09-16 | Thermo King Corporation | Reversible unidirectional fluid flow pump |
EP0115559A1 (en) * | 1983-01-21 | 1984-08-15 | Victor Joseph Specht | Variable capacity gear pump |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3118387A (en) * | 1964-01-21 | Reveksible gear pump | ||
DE1553281A1 (en) * | 1963-04-30 | 1969-09-25 | Zahnradfabrik Friedrichshafen | Capsule plant, especially wheel capsule plant |
-
1985
- 1985-12-09 DE DE19853543488 patent/DE3543488A1/en active Granted
-
1986
- 1986-08-19 EP EP86111453A patent/EP0231429B1/en not_active Expired
- 1986-12-08 US US06/938,898 patent/US4743180A/en not_active Expired - Lifetime
- 1986-12-09 JP JP61291686A patent/JPS62142881A/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3583839A (en) * | 1969-08-20 | 1971-06-08 | Emerson Electric Co | Automatic distortion control for gear type pumps and motors |
DE2742821A1 (en) * | 1977-09-23 | 1979-03-29 | Zahnradfabrik Friedrichshafen | GEAR PUMP WITH CONSTANT CONVEYOR DIRECTION WHEN CHANGING DRIVE DIRECTION |
US4193746A (en) * | 1978-02-16 | 1980-03-18 | Westinghouse Electric Corp. | Reversible gerotor pump |
US4171192A (en) * | 1978-05-05 | 1979-10-16 | Thermo King Corporation | Eccentric positioning means for a reversible pump |
DE2936066A1 (en) * | 1978-09-12 | 1980-03-20 | Concentric Pumps Ltd | Gear pump with gear ring rotating in eccentric bush - has stops limiting its rotation and friction elements between ring and bush |
US4222719A (en) * | 1979-01-02 | 1980-09-16 | Thermo King Corporation | Reversible unidirectional fluid flow pump |
EP0115559A1 (en) * | 1983-01-21 | 1984-08-15 | Victor Joseph Specht | Variable capacity gear pump |
Also Published As
Publication number | Publication date |
---|---|
US4743180A (en) | 1988-05-10 |
DE3543488A1 (en) | 1987-06-11 |
JPS62142881A (en) | 1987-06-26 |
EP0231429B1 (en) | 1988-12-28 |
EP0231429A2 (en) | 1987-08-12 |
DE3543488C2 (en) | 1989-04-13 |
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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 |
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17P | Request for examination filed |
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Effective date: 19880429 |
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GRAA | (expected) grant |
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ITF | It: translation for a ep patent filed |
Owner name: BARZANO' E ZANARDO MILANO S.P.A. |
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ET | Fr: translation filed | ||
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) | ||
PLBE | No opposition filed within time limit |
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STAA | Information on the status of an ep patent application or granted ep patent |
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