JPS57190104A - Fluid actuator device - Google Patents

Fluid actuator device

Info

Publication number
JPS57190104A
JPS57190104A JP7536481A JP7536481A JPS57190104A JP S57190104 A JPS57190104 A JP S57190104A JP 7536481 A JP7536481 A JP 7536481A JP 7536481 A JP7536481 A JP 7536481A JP S57190104 A JPS57190104 A JP S57190104A
Authority
JP
Japan
Prior art keywords
fluid
chamber
prevent
piston
valve
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
JP7536481A
Other languages
Japanese (ja)
Inventor
Hiroshi Kokuni
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.)
Kawasaki Heavy Industries Ltd
Kawasaki Motors Ltd
Original Assignee
Kawasaki Heavy Industries Ltd
Kawasaki Jukogyo KK
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 Kawasaki Heavy Industries Ltd, Kawasaki Jukogyo KK filed Critical Kawasaki Heavy Industries Ltd
Priority to JP7536481A priority Critical patent/JPS57190104A/en
Publication of JPS57190104A publication Critical patent/JPS57190104A/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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/3052—Shuttle valves
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/315—Directional control characterised by the connections of the valve or valves in the circuit
    • F15B2211/31552—Directional control characterised by the connections of the valve or valves in the circuit being connected to an output member and a return line
    • F15B2211/31558—Directional control characterised by the connections of the valve or valves in the circuit being connected to an output member and a return line having a single output member
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/32—Directional control characterised by the type of actuation
    • F15B2211/329—Directional control characterised by the type of actuation actuated by fluid pressure

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 prevent an accumulation of a working fluid in a circuit so as to prevent a local temperature rise of the fluid by providing an actuator with a discharge valve switched by the working fluid pressure in an apparatus for reciprocating the actuator in short stroke. CONSTITUTION:A working fluid from a fluid pressure pump 20 is introduced to a rotary direction-changing valve 21 through a flow path 54, and introduced to through holes 31, 32 alternately by rotation of a rotary vlave 22 of the valve 21. When the fluid is introduced to the through hole 31, a piston 25 is pushed down by fluid supplied to a piston upper chamber 26 through a flow path 28. At this time, the fluid in the chamber 26 is also introduced to a liquid chamber 34 through a through hole 36, and an upper valve seat 62 is blocked up by lowering of a spool 38 so that a piston lower chamber 27 is opened to a tank 42. Thus, each chamber 26, 27 is always supplied with new fluid to prevent an accumulation of a fluid in a circuit.
JP7536481A 1981-05-18 1981-05-18 Fluid actuator device Pending JPS57190104A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7536481A JPS57190104A (en) 1981-05-18 1981-05-18 Fluid actuator device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7536481A JPS57190104A (en) 1981-05-18 1981-05-18 Fluid actuator device

Publications (1)

Publication Number Publication Date
JPS57190104A true JPS57190104A (en) 1982-11-22

Family

ID=13574087

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7536481A Pending JPS57190104A (en) 1981-05-18 1981-05-18 Fluid actuator device

Country Status (1)

Country Link
JP (1) JPS57190104A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6732513B2 (en) 2001-09-28 2004-05-11 Kobelco Construction Machinery Co., Ltd. Rotating control circuit
WO2023051906A1 (en) * 2021-09-29 2023-04-06 Metismotion Gmbh Actuator device and method for operating such an actuator device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6732513B2 (en) 2001-09-28 2004-05-11 Kobelco Construction Machinery Co., Ltd. Rotating control circuit
WO2023051906A1 (en) * 2021-09-29 2023-04-06 Metismotion Gmbh Actuator device and method for operating such an actuator device

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