JPS57173604A - Proportional control solenoid valve - Google Patents

Proportional control solenoid valve

Info

Publication number
JPS57173604A
JPS57173604A JP5802281A JP5802281A JPS57173604A JP S57173604 A JPS57173604 A JP S57173604A JP 5802281 A JP5802281 A JP 5802281A JP 5802281 A JP5802281 A JP 5802281A JP S57173604 A JPS57173604 A JP S57173604A
Authority
JP
Japan
Prior art keywords
switch
dither
solenoid valve
proportional control
control solenoid
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
JP5802281A
Other languages
Japanese (ja)
Other versions
JPH0517401B2 (en
Inventor
Masaharu Asaoka
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.)
KYB Corp
Original Assignee
Kayaba Industry 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 Kayaba Industry Co Ltd filed Critical Kayaba Industry Co Ltd
Priority to JP5802281A priority Critical patent/JPS57173604A/en
Publication of JPS57173604A publication Critical patent/JPS57173604A/en
Publication of JPH0517401B2 publication Critical patent/JPH0517401B2/ja
Granted 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)
  • Servomotors (AREA)

Abstract

PURPOSE:To lengthen the lifetime of an O-ring etc., by stopping a dither in a neutral position. CONSTITUTION:The dither signal C of a dither circuit 10 is applied to an amplifier 5 through an analogue switch 11. The switch 11 is turned on or off by the output of a compararor 12. Only when the output of a slide rheostat 2 coupled to a control lever is higher than a prescribed level, the comparator 12 sends out a high-level signal to turn on the switch 11. When the control lever is in the neutral position, the comparator 12 sends out a low-level signal to turn off the switch 11. At that time, a solenoid control current does not dither. For that reason, a plunger 36 does not perform minute vibration and seals such as an O-ring 40 do not suffer vibration.
JP5802281A 1981-04-17 1981-04-17 Proportional control solenoid valve Granted JPS57173604A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5802281A JPS57173604A (en) 1981-04-17 1981-04-17 Proportional control solenoid valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5802281A JPS57173604A (en) 1981-04-17 1981-04-17 Proportional control solenoid valve

Publications (2)

Publication Number Publication Date
JPS57173604A true JPS57173604A (en) 1982-10-26
JPH0517401B2 JPH0517401B2 (en) 1993-03-09

Family

ID=13072323

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5802281A Granted JPS57173604A (en) 1981-04-17 1981-04-17 Proportional control solenoid valve

Country Status (1)

Country Link
JP (1) JPS57173604A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59170506A (en) * 1983-03-16 1984-09-26 Mitsubishi Heavy Ind Ltd Servo valve
JPS601403A (en) * 1983-06-09 1985-01-07 アプライド・パワ−・インコ−ポレ−テツド Pressure control apparatus and method
JPS6010905U (en) * 1983-06-30 1985-01-25 株式会社島津製作所 servo valve
JPS60107405U (en) * 1983-12-24 1985-07-22 株式会社豊田自動織機製作所 Switching operation circuit for cargo handling control valve in forklift

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5273291A (en) * 1975-12-15 1977-06-18 Hitachi Ltd Servo-valve data control system
JPS5428018A (en) * 1977-08-04 1979-03-02 Daikin Ind Ltd Electromagnetic proportional valve control device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5273291A (en) * 1975-12-15 1977-06-18 Hitachi Ltd Servo-valve data control system
JPS5428018A (en) * 1977-08-04 1979-03-02 Daikin Ind Ltd Electromagnetic proportional valve control device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59170506A (en) * 1983-03-16 1984-09-26 Mitsubishi Heavy Ind Ltd Servo valve
JPS601403A (en) * 1983-06-09 1985-01-07 アプライド・パワ−・インコ−ポレ−テツド Pressure control apparatus and method
JPH0553962B2 (en) * 1983-06-09 1993-08-11 Applied Power Ind Inc
JPS6010905U (en) * 1983-06-30 1985-01-25 株式会社島津製作所 servo valve
JPS60107405U (en) * 1983-12-24 1985-07-22 株式会社豊田自動織機製作所 Switching operation circuit for cargo handling control valve in forklift

Also Published As

Publication number Publication date
JPH0517401B2 (en) 1993-03-09

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