JPS56148693A - Rated displacement oil pump - Google Patents

Rated displacement oil pump

Info

Publication number
JPS56148693A
JPS56148693A JP5101380A JP5101380A JPS56148693A JP S56148693 A JPS56148693 A JP S56148693A JP 5101380 A JP5101380 A JP 5101380A JP 5101380 A JP5101380 A JP 5101380A JP S56148693 A JPS56148693 A JP S56148693A
Authority
JP
Japan
Prior art keywords
control valve
flow control
valve
hydraulic chamber
hydraulic
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
JP5101380A
Other languages
Japanese (ja)
Other versions
JPS6118030B2 (en
Inventor
Hajime Kozuka
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.)
Mitsubishi Motors Corp
Original Assignee
Mitsubishi Motors Corp
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 Mitsubishi Motors Corp filed Critical Mitsubishi Motors Corp
Priority to JP5101380A priority Critical patent/JPS56148693A/en
Publication of JPS56148693A publication Critical patent/JPS56148693A/en
Publication of JPS6118030B2 publication Critical patent/JPS6118030B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Control Of Positive-Displacement Pumps (AREA)
  • Power Steering Mechanism (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

PURPOSE: To provide a uniform flow rate discharge even if any irregular rotation of the engine is performed by a method wherein excessive flow rate for a flow control valve is positively and properly fed back through an auxiliary flow control valve.
CONSTITUTION: When an irregular rotation is found in an engine to cause a frequent variation of pump discharge rate, a pressure difference between each of the hydraulic chambers 18, 19 in the valve 17 is exceeded over a desired value and the valve body 23 is rapidly opened in response to the pressure difference due to the fact that the hydraulic pressure in the hydraulic chamber 9 of the flow control valve 7 is acted upon the hydraulic chamber 18 of auxiliary flow control valve 17 and the hydraulic pressure in the hydraulic chamber 11 of the valve 7 is acted upon the hydraulic chamber 19 in the valve 17. Thereby, a part of the excessive discharge flow rate flowed into the flow control valve 17 is fed back to the oil pump 1 from the auxiliary flow control valve 17 through oil passage 22, 26, so that it is possible to provide a uniform rate of discharge from the hydraulic chamber 11 in the flow control valve 7.
COPYRIGHT: (C)1981,JPO&Japio
JP5101380A 1980-04-17 1980-04-17 Rated displacement oil pump Granted JPS56148693A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5101380A JPS56148693A (en) 1980-04-17 1980-04-17 Rated displacement oil pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5101380A JPS56148693A (en) 1980-04-17 1980-04-17 Rated displacement oil pump

Publications (2)

Publication Number Publication Date
JPS56148693A true JPS56148693A (en) 1981-11-18
JPS6118030B2 JPS6118030B2 (en) 1986-05-10

Family

ID=12874896

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5101380A Granted JPS56148693A (en) 1980-04-17 1980-04-17 Rated displacement oil pump

Country Status (1)

Country Link
JP (1) JPS56148693A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63223382A (en) * 1987-03-11 1988-09-16 Honda Motor Co Ltd Pressure regulator for pump
JPH0657609U (en) * 1990-12-07 1994-08-09 有限会社本荘鉄工所 Bow-cutting device for ceramic raw molded products
US5797732A (en) * 1993-12-28 1998-08-25 Unisia Jecs Corporation Variable capacity pump having a pressure responsive relief valve arrangement
US5975232A (en) * 1996-01-18 1999-11-02 Unisia Jecs Corporation Power assisted steering apparatus for automotive vehicle
JP2001304140A (en) * 2000-04-18 2001-10-31 Showa Corp Variable displacement pump
WO2016175090A1 (en) * 2015-04-27 2016-11-03 Ｋｙｂ株式会社 Variable displacement vane pump

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63223382A (en) * 1987-03-11 1988-09-16 Honda Motor Co Ltd Pressure regulator for pump
JPH0657609U (en) * 1990-12-07 1994-08-09 有限会社本荘鉄工所 Bow-cutting device for ceramic raw molded products
US5797732A (en) * 1993-12-28 1998-08-25 Unisia Jecs Corporation Variable capacity pump having a pressure responsive relief valve arrangement
US5975232A (en) * 1996-01-18 1999-11-02 Unisia Jecs Corporation Power assisted steering apparatus for automotive vehicle
JP2001304140A (en) * 2000-04-18 2001-10-31 Showa Corp Variable displacement pump
WO2016175090A1 (en) * 2015-04-27 2016-11-03 Ｋｙｂ株式会社 Variable displacement vane pump
CN107532594A (en) * 2015-04-27 2018-01-02 Ｋｙｂ株式会社 Variable displacement vane pump

Also Published As

Publication number Publication date
JPS6118030B2 (en) 1986-05-10

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