JPS5697682A - Damping device for spool valve - Google Patents

Damping device for spool valve

Info

Publication number
JPS5697682A
JPS5697682A JP17278579A JP17278579A JPS5697682A JP S5697682 A JPS5697682 A JP S5697682A JP 17278579 A JP17278579 A JP 17278579A JP 17278579 A JP17278579 A JP 17278579A JP S5697682 A JPS5697682 A JP S5697682A
Authority
JP
Japan
Prior art keywords
spool
free piston
damping chamber
moves
chamber
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
JP17278579A
Other languages
Japanese (ja)
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 JP17278579A priority Critical patent/JPS5697682A/en
Publication of JPS5697682A publication Critical patent/JPS5697682A/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
    • F15B13/0401—Valve members; Fluid interconnections therefor
    • F15B13/0407—Means for damping the valve member movement
    • 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
    • F15B13/0401—Valve members; Fluid interconnections therefor
    • F15B13/0402—Valve members; Fluid interconnections therefor for linearly sliding valves, e.g. spool valves

Landscapes

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

Abstract

PURPOSE:To obtain the stable operation of a spool without loosing the acceleration property of a spool and moreover preventing a shock and a hunting phenomenon at the time of a chenge-over by preparing a free piston having an accumulating function in a damping chamber in a spool valve operating a spool according the pilot pressure. CONSTITUTION:When a spool 1 is in a neutral position and the high pressure oil flowing into the P port on one side flows into the pilot pressure chamber 8 through an orifice 20, the spool 1 is moved to the right direction in the figure. When the spool 1 moves to the right and the inside of a damping chamber 11 surpasses the set pressure of a free piston 15 at the stroke S2, said free piston 15 accumulates the oil in the fixed damping chamber 11 for obtaining the fixed damping effect. And even when the spool 1 moves to the left, substantially the same result as in the state at the time of moving to the right can be obtained.
JP17278579A 1979-12-29 1979-12-29 Damping device for spool valve Pending JPS5697682A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17278579A JPS5697682A (en) 1979-12-29 1979-12-29 Damping device for spool valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17278579A JPS5697682A (en) 1979-12-29 1979-12-29 Damping device for spool valve

Publications (1)

Publication Number Publication Date
JPS5697682A true JPS5697682A (en) 1981-08-06

Family

ID=15948299

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17278579A Pending JPS5697682A (en) 1979-12-29 1979-12-29 Damping device for spool valve

Country Status (1)

Country Link
JP (1) JPS5697682A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0633575A (en) * 1991-07-22 1994-02-08 Otsuka:Kk Construction of stone pavement and execution method thereof
CN102889255A (en) * 2011-07-22 2013-01-23 深圳市普隆重工有限公司 Hydraulic gadder and oil distribution sliding valve thereof
CN111577691A (en) * 2020-04-20 2020-08-25 同济大学 Low-pulsation flow control valve based on post-valve energy storage compensation

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0633575A (en) * 1991-07-22 1994-02-08 Otsuka:Kk Construction of stone pavement and execution method thereof
CN102889255A (en) * 2011-07-22 2013-01-23 深圳市普隆重工有限公司 Hydraulic gadder and oil distribution sliding valve thereof
CN102889255B (en) * 2011-07-22 2015-05-20 深圳市普隆重工有限公司 Hydraulic gadder and oil distribution sliding valve thereof
CN111577691A (en) * 2020-04-20 2020-08-25 同济大学 Low-pulsation flow control valve based on post-valve energy storage compensation
CN111577691B (en) * 2020-04-20 2022-04-05 同济大学 Low-pulsation flow control valve based on post-valve energy storage compensation

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