JPS4965466A - - Google Patents

Info

Publication number
JPS4965466A
JPS4965466A JP47108463A JP10846372A JPS4965466A JP S4965466 A JPS4965466 A JP S4965466A JP 47108463 A JP47108463 A JP 47108463A JP 10846372 A JP10846372 A JP 10846372A JP S4965466 A JPS4965466 A JP S4965466A
Authority
JP
Japan
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
JP47108463A
Other languages
Japanese (ja)
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 filed Critical
Priority to JP47108463A priority Critical patent/JPS4965466A/ja
Priority to US394664A priority patent/US3871178A/en
Priority to GB4274673A priority patent/GB1440000A/en
Publication of JPS4965466A publication Critical patent/JPS4965466A/ja
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
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • 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
    • F15B2211/255—Flow control functions
    • 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
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3105—Neutral or centre positions
    • F15B2211/3116—Neutral or centre positions the pump port being open in the centre position, e.g. so-called open centre
    • 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
    • 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
    • F15B2211/6355—Circuits providing pilot pressure to pilot pressure-controlled fluid circuit elements having valve means
    • 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
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Operation Control Of Excavators (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Multiple-Way Valves (AREA)
JP47108463A 1972-10-31 1972-10-31 Pending JPS4965466A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP47108463A JPS4965466A (en) 1972-10-31 1972-10-31
US394664A US3871178A (en) 1972-10-31 1973-09-06 Variable output pump control circuit using a remote control
GB4274673A GB1440000A (en) 1972-10-31 1973-09-11 Hydraulic control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47108463A JPS4965466A (en) 1972-10-31 1972-10-31

Publications (1)

Publication Number Publication Date
JPS4965466A true JPS4965466A (en) 1974-06-25

Family

ID=14485388

Family Applications (1)

Application Number Title Priority Date Filing Date
JP47108463A Pending JPS4965466A (en) 1972-10-31 1972-10-31

Country Status (3)

Country Link
US (1) US3871178A (en)
JP (1) JPS4965466A (en)
GB (1) GB1440000A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49122288U (en) * 1973-02-16 1974-10-19
JPS5861303A (en) * 1981-10-05 1983-04-12 Kawasaki Heavy Ind Ltd Control circuit for variable-capacity pump

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4208874A (en) * 1978-08-28 1980-06-24 Caterpillar Tractor Co. Apparatus for producing different flow rates of a fluid
JPS636474Y2 (en) * 1980-07-28 1988-02-23
DE3537421A1 (en) * 1985-10-21 1987-04-23 Rexroth Mannesmann Gmbh Plastics processing machine with hydraulic drives
DE3812753C2 (en) * 1988-04-16 1994-05-26 Rexroth Mannesmann Gmbh Valve arrangement for an adjustable pump
JPH07122276B2 (en) * 1989-07-07 1995-12-25 油谷重工株式会社 Hydraulic pump control circuit for construction machinery
US5575148A (en) * 1993-11-30 1996-11-19 Hitachi Construction Machinery Co., Ltd. Hydraulic pump control system
JP4067596B2 (en) * 1997-03-07 2008-03-26 日立建機株式会社 Hydraulic control equipment for construction machinery
JP3640500B2 (en) * 1997-04-25 2005-04-20 コベルコ建機株式会社 Construction machinery
JP2000230506A (en) * 1999-02-10 2000-08-22 Komatsu Ltd Actuator drive device by operation lever and operation lever device
KR101241713B1 (en) * 2005-12-29 2013-03-08 두산인프라코어 주식회사 Apparatus for controlling the flow rates of the hydraulic pump of a wheel loader
CN100526658C (en) * 2007-04-19 2009-08-12 沈阳市中之杰机电设备制造有限公司 Burning machine inlet guide blade adjusting device
CN105508320B (en) * 2016-02-24 2017-06-16 益阳新华美机电科技有限公司 Two parallel pumps hydraulic pressure converter plant and rubber mixing machine drum driven system
CN107044350B (en) * 2017-04-24 2019-04-23 中国航发沈阳发动机研究所 A kind of fluid power system and the gas turbine with it

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2941365A (en) * 1957-07-23 1960-06-21 Sundstrand Corp Hydraulic transmission
US3486334A (en) * 1968-05-16 1969-12-30 Cessna Aircraft Co Hydraulic power transmission control
DE2001701C3 (en) * 1970-01-15 1979-04-05 Linde Ag, 6200 Wiesbaden Setting device for the remote control of a continuously adjustable hydrostatic transmission

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49122288U (en) * 1973-02-16 1974-10-19
JPS554561Y2 (en) * 1973-02-16 1980-02-02
JPS5861303A (en) * 1981-10-05 1983-04-12 Kawasaki Heavy Ind Ltd Control circuit for variable-capacity pump
JPH0138962B2 (en) * 1981-10-05 1989-08-17 Kawasaki Heavy Ind Ltd

Also Published As

Publication number Publication date
GB1440000A (en) 1976-06-16
US3871178A (en) 1975-03-18

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