JPS5779280A - Pressure liquid supplying apparatus - Google Patents

Pressure liquid supplying apparatus

Info

Publication number
JPS5779280A
JPS5779280A JP55154470A JP15447080A JPS5779280A JP S5779280 A JPS5779280 A JP S5779280A JP 55154470 A JP55154470 A JP 55154470A JP 15447080 A JP15447080 A JP 15447080A JP S5779280 A JPS5779280 A JP S5779280A
Authority
JP
Japan
Prior art keywords
pump
pumps
passage
amount
main
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
JP55154470A
Other languages
Japanese (ja)
Other versions
JPS6020590B2 (en
Inventor
Takeshi Oe
Hiroshi Osaki
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.)
JIDOSHA KIKI KK
Jidosha Kiki Co Ltd
Original Assignee
JIDOSHA KIKI KK
Jidosha Kiki 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 JIDOSHA KIKI KK, Jidosha Kiki Co Ltd filed Critical JIDOSHA KIKI KK
Priority to JP55154470A priority Critical patent/JPS6020590B2/en
Priority to US06/308,762 priority patent/US4412789A/en
Priority to DE19813142604 priority patent/DE3142604A1/en
Priority to GB8132376A priority patent/GB2090915B/en
Priority to ES506712A priority patent/ES8206776A1/en
Publication of JPS5779280A publication Critical patent/JPS5779280A/en
Publication of JPS6020590B2 publication Critical patent/JPS6020590B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Control Of Positive-Displacement Pumps (AREA)
  • Power Steering Mechanism (AREA)

Abstract

PURPOSE: To reduce the power consumption with a simple constitution by using one pump as a main pump and the others as sub-pumps so that these pumps can be selectively separated from a hydraulic equipment feeding passage by a flow passage switching mechanism.
CONSTITUTION: In the high pressure and low speed state where the discharge amount of a pump increases over a specified amount as the number of revolution increases and a power steering device 5 is inoperative, the second switching valve 20 operates to discharge a part of the compressed oil which is supplied from the first pump and is flowing in a main passage 10 into the tank 3, and the feeding amount to the power steering device 5 is controlled at a constant set value. At this time, the first switching valve 12 is inoperative, and the compressed oil from the second pump 2 returns to the tank 3 through a subpassage 11 and a drain passage 15. Thus, one pump is used as a main pump and others are as sub-pumps, and these pumps are selectively separated from a fluid equipment feeding passage by means of a flow passage switching mechanism, so the minimum necessary amount of presure liquid can be supplied with a simple constitution, and the power consumption can be furthermore reduced.
COPYRIGHT: (C)1982,JPO&Japio
JP55154470A 1980-10-31 1980-10-31 Pressure fluid supply device Expired JPS6020590B2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP55154470A JPS6020590B2 (en) 1980-10-31 1980-10-31 Pressure fluid supply device
US06/308,762 US4412789A (en) 1980-10-31 1981-10-05 Oil pump unit
DE19813142604 DE3142604A1 (en) 1980-10-31 1981-10-27 OIL PUMP UNIT
GB8132376A GB2090915B (en) 1980-10-31 1981-10-27 Pumping apparatus
ES506712A ES8206776A1 (en) 1980-10-31 1981-10-30 Oil pump unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55154470A JPS6020590B2 (en) 1980-10-31 1980-10-31 Pressure fluid supply device

Publications (2)

Publication Number Publication Date
JPS5779280A true JPS5779280A (en) 1982-05-18
JPS6020590B2 JPS6020590B2 (en) 1985-05-22

Family

ID=15584946

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55154470A Expired JPS6020590B2 (en) 1980-10-31 1980-10-31 Pressure fluid supply device

Country Status (1)

Country Link
JP (1) JPS6020590B2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS594370U (en) * 1982-06-30 1984-01-12 いすゞ自動車株式会社 Oil flow control device for power steering equipment
JPS61220969A (en) * 1985-03-27 1986-10-01 Jidosha Kiki Co Ltd Flow control valve
JPS61226365A (en) * 1985-04-01 1986-10-08 Jidosha Kiki Co Ltd Flow control valve
JPS61229674A (en) * 1985-04-04 1986-10-13 Jidosha Kiki Co Ltd Flow control valve
JPH02171386A (en) * 1988-12-26 1990-07-03 Jidosha Kiki Co Ltd Oil pump
JP2012136075A (en) * 2010-12-24 2012-07-19 Hitachi Automotive Systems Steering Ltd Power steering device
JP2015531722A (en) * 2012-09-13 2015-11-05 ティーアールダブリュー・オートモーティブ・ユーエス・エルエルシー Power steering device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS594370U (en) * 1982-06-30 1984-01-12 いすゞ自動車株式会社 Oil flow control device for power steering equipment
JPH0137974Y2 (en) * 1982-06-30 1989-11-15
JPS61220969A (en) * 1985-03-27 1986-10-01 Jidosha Kiki Co Ltd Flow control valve
JPS61226365A (en) * 1985-04-01 1986-10-08 Jidosha Kiki Co Ltd Flow control valve
JPS61229674A (en) * 1985-04-04 1986-10-13 Jidosha Kiki Co Ltd Flow control valve
JPH02171386A (en) * 1988-12-26 1990-07-03 Jidosha Kiki Co Ltd Oil pump
JP2012136075A (en) * 2010-12-24 2012-07-19 Hitachi Automotive Systems Steering Ltd Power steering device
JP2015531722A (en) * 2012-09-13 2015-11-05 ティーアールダブリュー・オートモーティブ・ユーエス・エルエルシー Power steering device

Also Published As

Publication number Publication date
JPS6020590B2 (en) 1985-05-22

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