JPS56143383A - Variable-capacity vane pump - Google Patents

Variable-capacity vane pump

Info

Publication number
JPS56143383A
JPS56143383A JP4574380A JP4574380A JPS56143383A JP S56143383 A JPS56143383 A JP S56143383A JP 4574380 A JP4574380 A JP 4574380A JP 4574380 A JP4574380 A JP 4574380A JP S56143383 A JPS56143383 A JP S56143383A
Authority
JP
Japan
Prior art keywords
discharge
orifice
cam ring
pressure
upstream
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.)
Pending
Application number
JP4574380A
Other languages
Japanese (ja)
Inventor
Jun Udono
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP4574380A priority Critical patent/JPS56143383A/en
Publication of JPS56143383A publication Critical patent/JPS56143383A/en
Pending legal-status Critical Current

Links

Landscapes

  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

PURPOSE: To accurately control the flow rate of discharge, by directly applying the difference between the pressure on the upstream side of an orifice and that on its downstream side to a cam ring against a spring for the cam ring to adjust the position of the cam ring depending on the flow rate.
CONSTITUTION: A pressure difference proportional to the rate of flow in a discharge passage 12 is produced between the upstream and downstream sides of an orifice 13 provided in the passage 12. The pressure on the orifice 13 at the side of a discharge port 10 is transmitted to the first control chamber 23 through a branch passage 25. The pressure on the orifice 13 at the side of an actuator 11 is transmitted to the second control chamber 24. As a result, fluid pressure corresponding to the pressure difference between the upstream and downstream sides of the orifice 13 acts to a cam ring 4 in the direction opposite to that of energizing by a spring 5. The position of the cam ring 4 is thus controlled depending on the quantity of discharge. Since the quantity of discharge is proportional to the rotation of a rotor 3, the quantity of discharge can be accurately regulated.
COPYRIGHT: (C)1981,JPO&Japio
JP4574380A 1980-04-09 1980-04-09 Variable-capacity vane pump Pending JPS56143383A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4574380A JPS56143383A (en) 1980-04-09 1980-04-09 Variable-capacity vane pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4574380A JPS56143383A (en) 1980-04-09 1980-04-09 Variable-capacity vane pump

Publications (1)

Publication Number Publication Date
JPS56143383A true JPS56143383A (en) 1981-11-09

Family

ID=12727793

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4574380A Pending JPS56143383A (en) 1980-04-09 1980-04-09 Variable-capacity vane pump

Country Status (1)

Country Link
JP (1) JPS56143383A (en)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS597791A (en) * 1982-07-05 1984-01-14 Toyoda Mach Works Ltd Variable displacement type vane pump
JPS5958186A (en) * 1982-09-29 1984-04-03 Toyoda Mach Works Ltd Variable-capacity type pump for power steering
US5518380A (en) * 1994-02-28 1996-05-21 Jidosha Kiki Co., Ltd. Variable displacement pump having a changeover value for a pressure chamber
US5538400A (en) * 1992-12-28 1996-07-23 Jidosha Kiki Co., Ltd. Variable displacement pump
US5562432A (en) * 1995-01-26 1996-10-08 Jidosha Kiki Co., Ltd. Variable displacement pump having throttled control passages
US5895209A (en) * 1996-04-08 1999-04-20 Jidosha Kiki Co., Ltd. Variable capacity pump having a variable metering orifice for biasing pressure
US6042343A (en) * 1997-09-19 2000-03-28 Jodosha Kiki Co., Ltd. Variable displacement pump
US6079955A (en) * 1997-09-18 2000-06-27 Jidosha Kiki Co., Ltd. Variable displacement pump
US6120256A (en) * 1998-04-23 2000-09-19 Jidosha Kiki Co., Ltd. Variable displacement pump
US6217296B1 (en) 1998-12-07 2001-04-17 Bosch Braking Systems Co., Ltd. Variable displacement pump
US6280150B1 (en) 1997-09-18 2001-08-28 Jidosha Kiki Co., Ltd. Variable displacement pump
JP2002161868A (en) * 2000-11-28 2002-06-07 Kayaba Ind Co Ltd Variable displacement vane pump
WO2007012096A3 (en) * 2005-07-29 2007-06-28 Miba Sinter Holding Gmbh & Co Vane-cell pump
EP1979616A1 (en) 2006-01-31 2008-10-15 Magna Powertrain Inc. Variable displacement variable pressure vane pump system
US8047822B2 (en) * 2006-05-05 2011-11-01 Magna Powertrain Inc. Continuously variable displacement vane pump and system
JP2015178783A (en) * 2014-03-19 2015-10-08 日立オートモティブシステムズステアリング株式会社 Variable capacity type vane pump
WO2017047303A1 (en) * 2015-09-18 2017-03-23 日立オートモティブシステムズ株式会社 Variable displacement-type oil pump
JP2022518634A (en) * 2019-01-31 2022-03-16 スタックポール インターナショナル エンジニアード プロダクツ，リミテッド． Panic valve integrated into the pump's pivot pin

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS597791A (en) * 1982-07-05 1984-01-14 Toyoda Mach Works Ltd Variable displacement type vane pump
JPH0350912B2 (en) * 1982-07-05 1991-08-05 Toyoda Machine Works Ltd
JPS5958186A (en) * 1982-09-29 1984-04-03 Toyoda Mach Works Ltd Variable-capacity type pump for power steering
US5538400A (en) * 1992-12-28 1996-07-23 Jidosha Kiki Co., Ltd. Variable displacement pump
US5518380A (en) * 1994-02-28 1996-05-21 Jidosha Kiki Co., Ltd. Variable displacement pump having a changeover value for a pressure chamber
US5562432A (en) * 1995-01-26 1996-10-08 Jidosha Kiki Co., Ltd. Variable displacement pump having throttled control passages
US5895209A (en) * 1996-04-08 1999-04-20 Jidosha Kiki Co., Ltd. Variable capacity pump having a variable metering orifice for biasing pressure
US6079955A (en) * 1997-09-18 2000-06-27 Jidosha Kiki Co., Ltd. Variable displacement pump
US6280150B1 (en) 1997-09-18 2001-08-28 Jidosha Kiki Co., Ltd. Variable displacement pump
US6042343A (en) * 1997-09-19 2000-03-28 Jodosha Kiki Co., Ltd. Variable displacement pump
US6120256A (en) * 1998-04-23 2000-09-19 Jidosha Kiki Co., Ltd. Variable displacement pump
DE19917506B4 (en) * 1998-04-23 2004-02-12 Unisia JKC Steering Systems Co., Ltd., Atsugi Adjustable vane pump
US6217296B1 (en) 1998-12-07 2001-04-17 Bosch Braking Systems Co., Ltd. Variable displacement pump
JP2002161868A (en) * 2000-11-28 2002-06-07 Kayaba Ind Co Ltd Variable displacement vane pump
JP4527873B2 (en) * 2000-11-28 2010-08-18 カヤバ工業株式会社 Variable displacement vane pump
WO2007012096A3 (en) * 2005-07-29 2007-06-28 Miba Sinter Holding Gmbh & Co Vane-cell pump
US8545199B2 (en) 2005-07-29 2013-10-01 Miba Sinter Holding Gmbh & Co Kg Regulatable vane-cell pump with a sealing web curving in an arc
EP1979616A1 (en) 2006-01-31 2008-10-15 Magna Powertrain Inc. Variable displacement variable pressure vane pump system
US8047822B2 (en) * 2006-05-05 2011-11-01 Magna Powertrain Inc. Continuously variable displacement vane pump and system
JP2015178783A (en) * 2014-03-19 2015-10-08 日立オートモティブシステムズステアリング株式会社 Variable capacity type vane pump
WO2017047303A1 (en) * 2015-09-18 2017-03-23 日立オートモティブシステムズ株式会社 Variable displacement-type oil pump
CN108026923A (en) * 2015-09-18 2018-05-11 日立汽车***株式会社 Capacity variable type oil pump
JPWO2017047303A1 (en) * 2015-09-18 2018-06-21 日立オートモティブシステムズ株式会社 Variable displacement oil pump
US10947972B2 (en) 2015-09-18 2021-03-16 Hitachi Automotive Systems, Ltd. Variable displacement-type oil pump
JP2022518634A (en) * 2019-01-31 2022-03-16 スタックポール インターナショナル エンジニアード プロダクツ，リミテッド． Panic valve integrated into the pump's pivot pin

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