EP1961961A3 - Oil pump pressure control device - Google Patents

Oil pump pressure control device Download PDF

Info

Publication number
EP1961961A3
EP1961961A3 EP07122748A EP07122748A EP1961961A3 EP 1961961 A3 EP1961961 A3 EP 1961961A3 EP 07122748 A EP07122748 A EP 07122748A EP 07122748 A EP07122748 A EP 07122748A EP 1961961 A3 EP1961961 A3 EP 1961961A3
Authority
EP
European Patent Office
Prior art keywords
passage
discharge passage
pressure control
open
discharge
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
Application number
EP07122748A
Other languages
German (de)
French (fr)
Other versions
EP1961961A2 (en
EP1961961B1 (en
Inventor
Keiichi Kai
Kenichi Fujiki
Yasunori Ono
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yamada Manufacturing Co Ltd
Original Assignee
Yamada Manufacturing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yamada Manufacturing Co Ltd filed Critical Yamada Manufacturing Co Ltd
Publication of EP1961961A2 publication Critical patent/EP1961961A2/en
Publication of EP1961961A3 publication Critical patent/EP1961961A3/en
Application granted granted Critical
Publication of EP1961961B1 publication Critical patent/EP1961961B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F04C14/24—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
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/06—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations specially adapted for stopping, starting, idling or no-load operation
    • F04C14/065—Capacity control using a multiplicity of units or pumping capacities, e.g. multiple chambers, individually switchable or controllable
    • 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
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member

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)

Abstract

An oil pump pressure control device is configured from a first discharge passage (11) to an engine (E), a first return passage (12) that returns to an intake side of an outer circumferential side rotor, a second discharge passage (13) to the engine, a second return passage (14) that returns to an intake side of an inner circumferential side rotor, and a pressure control valve (C) whose valve main body is provided between a discharge port from the inner circumferential side rotor and the first discharge passage. The first (11) and second discharge passage (14) are coupled, and a flow passage control is executed in each of: a low revolution range in a state in which only the first and the second discharge passage are open; an intermediate revolution range in a state in which the first and second discharge passage are open and a first intake side of the return passage is closed while a second intake side of the return passage is open; and a high revolution range in a state in which the second discharge passage is closed while the first discharge passage and the return passage are open.
EP07122748A 2007-02-20 2007-12-10 Oil pump pressure control device Expired - Fee Related EP1961961B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007039135A JP4521005B2 (en) 2007-02-20 2007-02-20 Pressure control device in oil pump

Publications (3)

Publication Number Publication Date
EP1961961A2 EP1961961A2 (en) 2008-08-27
EP1961961A3 true EP1961961A3 (en) 2009-12-16
EP1961961B1 EP1961961B1 (en) 2011-01-26

Family

ID=39446211

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07122748A Expired - Fee Related EP1961961B1 (en) 2007-02-20 2007-12-10 Oil pump pressure control device

Country Status (6)

Country Link
US (1) US20080253904A1 (en)
EP (1) EP1961961B1 (en)
JP (1) JP4521005B2 (en)
CN (1) CN101251108B (en)
DE (1) DE602007012206D1 (en)
ES (1) ES2358286T3 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101639063B (en) * 2009-08-21 2011-01-26 深圳益宝实业有限公司 Gear type oil pump
JP5278775B2 (en) * 2010-12-06 2013-09-04 アイシン精機株式会社 Oil supply device
JP5950583B2 (en) * 2011-03-27 2016-07-13 株式会社山田製作所 Pump device
JP5392797B2 (en) * 2011-12-02 2014-01-22 ミュンフワ アイエヌディー． カンパニー，リミテッド Variable oil pump
JP5938901B2 (en) * 2011-12-28 2016-06-22 株式会社ジェイテクト Motor control device and electric pump unit
CN102900665A (en) * 2012-10-16 2013-01-30 李庆中 Inside engaged gear pump or gear motor device with multilayer structure
JP6083708B2 (en) * 2013-09-20 2017-02-22 アイシン精機株式会社 Electric oil pump
DE102014222396A1 (en) 2014-11-03 2016-05-04 Continental Automotive Gmbh displacement
US10392977B2 (en) * 2016-02-11 2019-08-27 Slw Automotive Inc. Automotive lubricant pumping system with two piece relief valve
CN106640576B (en) * 2016-12-09 2019-01-15 柳州职业技术学院 A kind of unload-type independent variable radial plunger pump
CN108223357B (en) * 2017-11-24 2019-11-08 河南航天液压气动技术有限公司 A kind of internal drainage type gear pump
CN109827059A (en) * 2019-01-23 2019-05-31 浙江零跑科技有限公司 A kind of cycloid gear pump of two-way fuel feeding

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4502845A (en) * 1983-03-24 1985-03-05 General Motors Corporation Multistage gear pump and control valve arrangement
EP0811765A2 (en) * 1996-06-05 1997-12-10 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Internal combustion engine with two-stage internal gear pump
EP1529958A2 (en) * 2003-11-06 2005-05-11 Aisin Seiki Kabushiki Kaisha Oil supply system for an IC engine

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4412789A (en) * 1980-10-31 1983-11-01 Jidosha Kiki Co., Ltd. Oil pump unit
JPS58180790A (en) * 1982-04-19 1983-10-22 Jidosha Kiki Co Ltd Oil pump
US4658583A (en) * 1984-06-11 1987-04-21 Trw Inc. Double staged, internal rotary pump with flow control
CA2219062C (en) * 1996-12-04 2001-12-25 Siegfried A. Eisenmann Infinitely variable ring gear pump
JPH11280667A (en) * 1998-03-27 1999-10-15 Aisin Seiki Co Ltd Oil pump device
JPH11280666A (en) * 1998-03-27 1999-10-15 Denso Corp Fuel pump
EP1008754B1 (en) * 1998-12-11 2004-03-10 Dana Automotive Limited Positive displacement pump systems
JP2002070756A (en) 2000-08-28 2002-03-08 Toyota Motor Corp Variable displacement oil pump

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4502845A (en) * 1983-03-24 1985-03-05 General Motors Corporation Multistage gear pump and control valve arrangement
EP0811765A2 (en) * 1996-06-05 1997-12-10 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Internal combustion engine with two-stage internal gear pump
EP1529958A2 (en) * 2003-11-06 2005-05-11 Aisin Seiki Kabushiki Kaisha Oil supply system for an IC engine
JP2005140022A (en) * 2003-11-06 2005-06-02 Aisin Seiki Co Ltd Engine oil supply device

Also Published As

Publication number Publication date
JP4521005B2 (en) 2010-08-11
JP2008202488A (en) 2008-09-04
ES2358286T3 (en) 2011-05-09
CN101251108B (en) 2011-09-14
DE602007012206D1 (en) 2011-03-10
EP1961961A2 (en) 2008-08-27
CN101251108A (en) 2008-08-27
US20080253904A1 (en) 2008-10-16
EP1961961B1 (en) 2011-01-26

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