CA1120827A - Control valve for working machine - Google Patents

Control valve for working machine

Info

Publication number
CA1120827A
CA1120827A CA000307479A CA307479A CA1120827A CA 1120827 A CA1120827 A CA 1120827A CA 000307479 A CA000307479 A CA 000307479A CA 307479 A CA307479 A CA 307479A CA 1120827 A CA1120827 A CA 1120827A
Authority
CA
Canada
Prior art keywords
valve
change
passage
chamber
pressure
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.)
Expired
Application number
CA000307479A
Other languages
English (en)
French (fr)
Inventor
Hirokatsu Sakamoto
Masao Ohashi
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.)
Iseki and Co Ltd
Original Assignee
Iseki and 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 Iseki and Co Ltd filed Critical Iseki and Co Ltd
Application granted granted Critical
Publication of CA1120827A publication Critical patent/CA1120827A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/01—Locking-valves or other detent i.e. load-holding devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Lifting Devices For Agricultural Implements (AREA)
CA000307479A 1977-07-19 1978-07-17 Control valve for working machine Expired CA1120827A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP52-86979 1977-07-19
JP8697977A JPS5422070A (en) 1977-07-19 1977-07-19 Control valve for machine

Publications (1)

Publication Number Publication Date
CA1120827A true CA1120827A (en) 1982-03-30

Family

ID=13901980

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000307479A Expired CA1120827A (en) 1977-07-19 1978-07-17 Control valve for working machine

Country Status (5)

Country Link
JP (1) JPS5422070A (ja)
CA (1) CA1120827A (ja)
DE (1) DE2831515C2 (ja)
FR (1) FR2398202A1 (ja)
GB (1) GB2001516B (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5648982B2 (ja) * 1973-10-19 1981-11-19

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3035610A (en) * 1959-09-10 1962-05-22 Oliver Corp Control valve for hydraulic actuator
JPS4825199U (ja) * 1971-07-31 1973-03-24
DE2449599A1 (de) * 1974-10-18 1976-04-29 Bosch Gmbh Robert Wegeventil
US4088151A (en) * 1976-05-26 1978-05-09 Borg-Warner Corporation Cylinder locking apparatus

Also Published As

Publication number Publication date
GB2001516B (en) 1982-02-10
FR2398202B1 (ja) 1983-12-16
JPS5422070A (en) 1979-02-19
DE2831515C2 (de) 1986-11-06
DE2831515A1 (de) 1979-02-22
GB2001516A (en) 1979-02-07
JPS6257843B2 (ja) 1987-12-03
FR2398202A1 (fr) 1979-02-16

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Legal Events

Date Code Title Description
MKEX Expiry