JPS57200773A - Damping device for counter balancing valve - Google Patents

Damping device for counter balancing valve

Info

Publication number
JPS57200773A
JPS57200773A JP8312881A JP8312881A JPS57200773A JP S57200773 A JPS57200773 A JP S57200773A JP 8312881 A JP8312881 A JP 8312881A JP 8312881 A JP8312881 A JP 8312881A JP S57200773 A JPS57200773 A JP S57200773A
Authority
JP
Japan
Prior art keywords
motor
spool
port
damping device
oil
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
JP8312881A
Other languages
Japanese (ja)
Other versions
JPH0237507B2 (en
Inventor
Hitoshi Okubo
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 JP8312881A priority Critical patent/JPH0237507B2/en
Publication of JPS57200773A publication Critical patent/JPS57200773A/en
Publication of JPH0237507B2 publication Critical patent/JPH0237507B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K47/00—Means in valves for absorbing fluid energy

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Safety Valves (AREA)

Abstract

PURPOSE:To prevent the generation of a hunting phenomenon and a shock by a method wherein the titled device is provided with a control spring for holding a poppet within a spool and both ends of the spool is made to confront a damping chamber. CONSTITUTION:A pressurized oil which has entered a pump port 5 opens a check valve 1 and flows into a motor 60 through a motor port 17. In this case, the oil in the pump port 15 opens to move the spool 4 against the force of a spring 12 whereupon an annular groove 14 and a motor port 18 are overlapped each other so that the return oil from the motor 60 is returned to a tank through the motor port 18, the annular groove 14 and the pump port 16. With the above structure, a damping effect for slowing the movement of the spool takes place.
JP8312881A 1981-05-30 1981-05-30 KAUNTABARANSUBENNODANPINGUSOCHI Expired - Lifetime JPH0237507B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8312881A JPH0237507B2 (en) 1981-05-30 1981-05-30 KAUNTABARANSUBENNODANPINGUSOCHI

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8312881A JPH0237507B2 (en) 1981-05-30 1981-05-30 KAUNTABARANSUBENNODANPINGUSOCHI

Publications (2)

Publication Number Publication Date
JPS57200773A true JPS57200773A (en) 1982-12-09
JPH0237507B2 JPH0237507B2 (en) 1990-08-24

Family

ID=13793555

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8312881A Expired - Lifetime JPH0237507B2 (en) 1981-05-30 1981-05-30 KAUNTABARANSUBENNODANPINGUSOCHI

Country Status (1)

Country Link
JP (1) JPH0237507B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02283977A (en) * 1989-04-24 1990-11-21 Komatsu Ltd Counter balance valve
CN105201942A (en) * 2014-10-24 2015-12-30 徐州重型机械有限公司 Balance valve and automobile crane

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02283977A (en) * 1989-04-24 1990-11-21 Komatsu Ltd Counter balance valve
CN105201942A (en) * 2014-10-24 2015-12-30 徐州重型机械有限公司 Balance valve and automobile crane

Also Published As

Publication number Publication date
JPH0237507B2 (en) 1990-08-24

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