JPS57113988A - Pressure fluid supply apparatus - Google Patents

Pressure fluid supply apparatus

Info

Publication number
JPS57113988A
JPS57113988A JP55189006A JP18900680A JPS57113988A JP S57113988 A JPS57113988 A JP S57113988A JP 55189006 A JP55189006 A JP 55189006A JP 18900680 A JP18900680 A JP 18900680A JP S57113988 A JPS57113988 A JP S57113988A
Authority
JP
Japan
Prior art keywords
flow rate
pressure fluid
load
fluid
supply volume
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
JP55189006A
Other languages
Japanese (ja)
Other versions
JPS639112B2 (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 JP55189006A priority Critical patent/JPS57113988A/en
Publication of JPS57113988A publication Critical patent/JPS57113988A/en
Publication of JPS639112B2 publication Critical patent/JPS639112B2/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 means capable of supplying the exact flow rate necessary to operate a fluid apparatus by combining skillfully a flow route change-over valve and a flow rate control valve to make a supply volume of pressure fluid as little as possible when no load is applied, and increasing gradually the controlled flow rate with increase of the load.
CONSTITUTION: By skillfully combining a flow route change-over valve 12 for operatively sensing a load applied to the side of a fluid apparatus and joining the pressure fluid flowing from a plurarity of pumps 1, 2 and a flow rate control valve 21 for sensing alteration of the load applied to the fluid apparatus and changing a back flow rate of a part of pressure fluid flowing through a supply route to be fed back to the side of a tank 3, the supply volume of pressure fluid can be made minimum when no load is applied and the controlled flow rate can be gradually increased with increase of the load so as to enable the flow rate to be sufficient and necessary for operating the fluid apparatus. Accordingly, the supply volume of pressure fluid can be controlled rationally or effectively, and power consumption is decreased to the lowest to save energy.
COPYRIGHT: (C)1982,JPO&Japio
JP55189006A 1980-12-29 1980-12-29 Pressure fluid supply apparatus Granted JPS57113988A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55189006A JPS57113988A (en) 1980-12-29 1980-12-29 Pressure fluid supply apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55189006A JPS57113988A (en) 1980-12-29 1980-12-29 Pressure fluid supply apparatus

Publications (2)

Publication Number Publication Date
JPS57113988A true JPS57113988A (en) 1982-07-15
JPS639112B2 JPS639112B2 (en) 1988-02-25

Family

ID=16233715

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55189006A Granted JPS57113988A (en) 1980-12-29 1980-12-29 Pressure fluid supply apparatus

Country Status (1)

Country Link
JP (1) JPS57113988A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009191754A (en) * 2008-02-15 2009-08-27 Toyota Industries Corp Variable displacement gear pump

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009191754A (en) * 2008-02-15 2009-08-27 Toyota Industries Corp Variable displacement gear pump

Also Published As

Publication number Publication date
JPS639112B2 (en) 1988-02-25

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