JPS57131889A - Oil hydraulic controller - Google Patents

Oil hydraulic controller

Info

Publication number
JPS57131889A
JPS57131889A JP56016582A JP1658281A JPS57131889A JP S57131889 A JPS57131889 A JP S57131889A JP 56016582 A JP56016582 A JP 56016582A JP 1658281 A JP1658281 A JP 1658281A JP S57131889 A JPS57131889 A JP S57131889A
Authority
JP
Japan
Prior art keywords
control
oil
flow
tank
valve
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
JP56016582A
Other languages
Japanese (ja)
Other versions
JPS6325193B2 (en
Inventor
Kenichi Akimoto
Yoshisuke Akita
Hiroshi Kondo
Kenichi Aeba
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.)
Tokyo Keiki Inc
Original Assignee
Tokyo Keiki 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 Tokyo Keiki Co Ltd filed Critical Tokyo Keiki Co Ltd
Priority to JP56016582A priority Critical patent/JPS57131889A/en
Publication of JPS57131889A publication Critical patent/JPS57131889A/en
Publication of JPS6325193B2 publication Critical patent/JPS6325193B2/ja
Granted legal-status Critical Current

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
    • F04C14/18—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber
    • F04C14/22—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/08—Regulating by delivery pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

PURPOSE:To improve response action of flow control, by equipping a throttling, limiting a flow of oil in a control pressure oil feed line only when a control actuator is selectively communicated to a tank, in a valve. CONSTITUTION:If a load sensing valve 12 is selected to a right side position, a control atuator 10a is communicated to a tank 13, simultaneously a flow of oil from a pilot pipe line 14 is disturbed by a throttling 15 in the valve 12. As a result, oil is quickly discharged from the control actuator 10a to the tank 13, and a cam ring 17 is driven by a recovery actuator 10b to a zero eccentric position, then the delivery amount is throttled to zero. In this way, since a flow of oil is not disturbed at all when switched to the feed of control pressure oil, delivery control through selection of the load sensing valve 12 can obtain high responsive action of flow control.
JP56016582A 1981-02-06 1981-02-06 Oil hydraulic controller Granted JPS57131889A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56016582A JPS57131889A (en) 1981-02-06 1981-02-06 Oil hydraulic controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56016582A JPS57131889A (en) 1981-02-06 1981-02-06 Oil hydraulic controller

Publications (2)

Publication Number Publication Date
JPS57131889A true JPS57131889A (en) 1982-08-14
JPS6325193B2 JPS6325193B2 (en) 1988-05-24

Family

ID=11920267

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56016582A Granted JPS57131889A (en) 1981-02-06 1981-02-06 Oil hydraulic controller

Country Status (1)

Country Link
JP (1) JPS57131889A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01318774A (en) * 1988-06-17 1989-12-25 Daikin Ind Ltd Device for controlling variable capacity type pump
US6408975B1 (en) 2000-08-09 2002-06-25 Visteon Global Technologies, Inc. Variable displacement pump with electronic control
US6468044B1 (en) 2000-06-15 2002-10-22 Visteon Global Technologies, Inc. Variable displacement pump

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01318774A (en) * 1988-06-17 1989-12-25 Daikin Ind Ltd Device for controlling variable capacity type pump
US6468044B1 (en) 2000-06-15 2002-10-22 Visteon Global Technologies, Inc. Variable displacement pump
US6408975B1 (en) 2000-08-09 2002-06-25 Visteon Global Technologies, Inc. Variable displacement pump with electronic control

Also Published As

Publication number Publication date
JPS6325193B2 (en) 1988-05-24

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