JPS5943203A - 油圧制御回路 - Google Patents

油圧制御回路

Info

Publication number
JPS5943203A
JPS5943203A JP57153708A JP15370882A JPS5943203A JP S5943203 A JPS5943203 A JP S5943203A JP 57153708 A JP57153708 A JP 57153708A JP 15370882 A JP15370882 A JP 15370882A JP S5943203 A JPS5943203 A JP S5943203A
Authority
JP
Japan
Prior art keywords
pressure
valve
pilot
throttle
flow rate
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
JP57153708A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0333927B2 (en]
Inventor
Haruhiko Kawasaki
治彦 川崎
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 JP57153708A priority Critical patent/JPS5943203A/ja
Publication of JPS5943203A publication Critical patent/JPS5943203A/ja
Publication of JPH0333927B2 publication Critical patent/JPH0333927B2/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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • F15B11/04—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed
    • F15B11/05—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed specially adapted to maintain constant speed, e.g. pressure-compensated, load-responsive
    • F15B11/055—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed specially adapted to maintain constant speed, e.g. pressure-compensated, load-responsive by adjusting the pump output or bypass
    • 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
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/2053—Type of pump
    • F15B2211/20546—Type of pump variable capacity
    • F15B2211/20553—Type of pump variable capacity with pilot circuit, e.g. for controlling a swash plate
    • 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
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/25—Pressure control functions
    • F15B2211/253—Pressure margin control, e.g. pump pressure in relation to load pressure
    • 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
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40507—Flow control characterised by the type of flow control means or valve with constant throttles or orifices
    • 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
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40515—Flow control characterised by the type of flow control means or valve with variable throttles or orifices
    • 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
    • F15B2211/40—Flow control
    • F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
    • F15B2211/41554—Flow control characterised by the connections of the flow control means in the circuit being connected to a return line and a directional control valve
    • 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
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/635—Circuits providing pilot pressure to pilot pressure-controlled fluid circuit elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
JP57153708A 1982-09-03 1982-09-03 油圧制御回路 Granted JPS5943203A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57153708A JPS5943203A (ja) 1982-09-03 1982-09-03 油圧制御回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57153708A JPS5943203A (ja) 1982-09-03 1982-09-03 油圧制御回路

Publications (2)

Publication Number Publication Date
JPS5943203A true JPS5943203A (ja) 1984-03-10
JPH0333927B2 JPH0333927B2 (en]) 1991-05-20

Family

ID=15568358

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57153708A Granted JPS5943203A (ja) 1982-09-03 1982-09-03 油圧制御回路

Country Status (1)

Country Link
JP (1) JPS5943203A (en])

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01176803A (ja) * 1988-01-05 1989-07-13 Uchida Yuatsu Kiki Kogyo Kk 可変容量ポンプと組合せた流量制御弁を有する複数台のアクチュエータの作動制御装置
US4938023A (en) * 1987-09-29 1990-07-03 Shin Caterpillar Mitsubishi Ltd. Swing-frame motor flow and sensed load pressure control system for hydraulic excavator
CN107246415A (zh) * 2017-08-01 2017-10-13 无锡海天机械有限公司 一种伺服驱动带变量泵低速控制液压回路

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5187681A (ja) * 1975-01-31 1976-07-31 Mitsubishi Heavy Ind Ltd Yuatsuseigyosochi
JPS5313748A (en) * 1976-07-21 1978-02-07 Mitsubishi Electric Corp Elevator group managing device
JPS53140479A (en) * 1977-05-13 1978-12-07 Kawasaki Heavy Ind Ltd Hydraulic pressure controller
JPS57137701A (en) * 1981-01-16 1982-08-25 Gen Signal Corp Fluid pressure controller

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5187681A (ja) * 1975-01-31 1976-07-31 Mitsubishi Heavy Ind Ltd Yuatsuseigyosochi
JPS5313748A (en) * 1976-07-21 1978-02-07 Mitsubishi Electric Corp Elevator group managing device
JPS53140479A (en) * 1977-05-13 1978-12-07 Kawasaki Heavy Ind Ltd Hydraulic pressure controller
JPS57137701A (en) * 1981-01-16 1982-08-25 Gen Signal Corp Fluid pressure controller

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4938023A (en) * 1987-09-29 1990-07-03 Shin Caterpillar Mitsubishi Ltd. Swing-frame motor flow and sensed load pressure control system for hydraulic excavator
JPH01176803A (ja) * 1988-01-05 1989-07-13 Uchida Yuatsu Kiki Kogyo Kk 可変容量ポンプと組合せた流量制御弁を有する複数台のアクチュエータの作動制御装置
CN107246415A (zh) * 2017-08-01 2017-10-13 无锡海天机械有限公司 一种伺服驱动带变量泵低速控制液压回路

Also Published As

Publication number Publication date
JPH0333927B2 (en]) 1991-05-20

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