JPS57204302A - Hydraulic controller - Google Patents

Hydraulic controller

Info

Publication number
JPS57204302A
JPS57204302A JP14310781A JP14310781A JPS57204302A JP S57204302 A JPS57204302 A JP S57204302A JP 14310781 A JP14310781 A JP 14310781A JP 14310781 A JP14310781 A JP 14310781A JP S57204302 A JPS57204302 A JP S57204302A
Authority
JP
Japan
Prior art keywords
valves
directional control
normally
control valve
ports
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.)
Pending
Application number
JP14310781A
Other languages
Japanese (ja)
Inventor
Kazumasa Matsumoto
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.)
Sanyo Kiki Co Ltd
Original Assignee
Sanyo 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 Sanyo Kiki Co Ltd filed Critical Sanyo Kiki Co Ltd
Priority to JP14310781A priority Critical patent/JPS57204302A/en
Publication of JPS57204302A publication Critical patent/JPS57204302A/en
Pending 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
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
    • F15B13/043—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

PURPOSE:To effectuate directional control without using a directional control valve of complicated structure and high cost, by providing a three-position two- port normally-closed control valve if a hydraulic actuator is of the single-acting type but providing two such cotrol valves if the actuator is of the double-acting type and by connecting the control valve or valves to the supply and discharge ports of an oil pressure causing unit. CONSTITUTION:Actuators 19, 20, 21 are connected in parallel with each other. The first ports of normally-closed electromagnetic directional control valves 22, 23 communicate with cylinder chambers 19', 19'' and the second and third ports of the valves communicate with normally-open directional control valves 15-18. When a switch A1 is turned on, the valves 22, 23 act so that pressurized oil enters into the chamber 19' through the valves 17, 22 and oil in the other chamber 19'' returns to a tank 50 through the valves 23, 16. As a result, a piston rod 19''' is moved rightward.
JP14310781A 1981-09-09 1981-09-09 Hydraulic controller Pending JPS57204302A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14310781A JPS57204302A (en) 1981-09-09 1981-09-09 Hydraulic controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14310781A JPS57204302A (en) 1981-09-09 1981-09-09 Hydraulic controller

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP50064592A Division JPS6052322B2 (en) 1975-05-28 1975-05-28 hydraulic control device

Publications (1)

Publication Number Publication Date
JPS57204302A true JPS57204302A (en) 1982-12-15

Family

ID=15331064

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14310781A Pending JPS57204302A (en) 1981-09-09 1981-09-09 Hydraulic controller

Country Status (1)

Country Link
JP (1) JPS57204302A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4714495U (en) * 1971-03-15 1972-10-20
JPS6052322A (en) * 1983-09-01 1985-03-25 Suriibondo:Kk Molding of composite article

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4714495U (en) * 1971-03-15 1972-10-20
JPS6052322A (en) * 1983-09-01 1985-03-25 Suriibondo:Kk Molding of composite article

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