CA1013236A - Electrically controlled hydraulic pump with flow and pressure override - Google Patents

Electrically controlled hydraulic pump with flow and pressure override

Info

Publication number
CA1013236A
CA1013236A CA208,701A CA208701A CA1013236A CA 1013236 A CA1013236 A CA 1013236A CA 208701 A CA208701 A CA 208701A CA 1013236 A CA1013236 A CA 1013236A
Authority
CA
Canada
Prior art keywords
flow
hydraulic pump
electrically controlled
controlled hydraulic
pressure override
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.)
Expired
Application number
CA208,701A
Other versions
CA208701S (en
Inventor
John C. Richards
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Application granted granted Critical
Publication of CA1013236A publication Critical patent/CA1013236A/en
Expired 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
    • F15B9/00—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
    • F15B9/02—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type
    • F15B9/04—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by varying the output of a pump with variable capacity
    • 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
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/63—Electronic controllers
    • F15B2211/6303—Electronic controllers using input signals
    • F15B2211/6336—Electronic controllers using input signals representing a state of the output member, e.g. position, speed or acceleration

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Reciprocating Pumps (AREA)
  • Fluid-Pressure Circuits (AREA)
CA208,701A 1973-10-19 1974-09-09 Electrically controlled hydraulic pump with flow and pressure override Expired CA1013236A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US40794773A 1973-10-19 1973-10-19

Publications (1)

Publication Number Publication Date
CA1013236A true CA1013236A (en) 1977-07-05

Family

ID=23614225

Family Applications (1)

Application Number Title Priority Date Filing Date
CA208,701A Expired CA1013236A (en) 1973-10-19 1974-09-09 Electrically controlled hydraulic pump with flow and pressure override

Country Status (6)

Country Link
JP (1) JPS5078903A (en)
BE (1) BE821254A (en)
CA (1) CA1013236A (en)
DE (1) DE2449412A1 (en)
FR (1) FR2248429A1 (en)
IT (1) IT1022946B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5062265A (en) * 1989-08-01 1991-11-05 Sundstrand Corporation Hydromechanical control of differential pressure across a variable displacement hydraulic motor
WO2011137199A1 (en) * 2010-04-29 2011-11-03 Eaton Corporation Control of a fluid pump assembly

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3902318A (en) * 1974-08-28 1975-09-02 Sperry Rand Corp Power transmission
US4494911A (en) * 1983-04-29 1985-01-22 General Signal Corporation Piston pump servo control
WO2007097661A1 (en) * 2006-02-21 2007-08-30 Federal State Unitary Enterprise 'central Research Institute Of Automatics And Hydraulics' (Fsue 'tsniiag') Electrohydraulic servo drive and hydraulic amplifier
RU2467205C1 (en) * 2011-07-22 2012-11-20 ОТКРЫТОЕ АКЦИОНЕРНОЕ ОБЩЕСТВО "Центральный научно-исследовательский институт автоматики и гидравлики"(ОАО "ЦНИИАГ") Hydraulic drive power source

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5062265A (en) * 1989-08-01 1991-11-05 Sundstrand Corporation Hydromechanical control of differential pressure across a variable displacement hydraulic motor
WO2011137199A1 (en) * 2010-04-29 2011-11-03 Eaton Corporation Control of a fluid pump assembly
US8435010B2 (en) 2010-04-29 2013-05-07 Eaton Corporation Control of a fluid pump assembly

Also Published As

Publication number Publication date
JPS5078903A (en) 1975-06-27
FR2248429A1 (en) 1975-05-16
IT1022946B (en) 1978-04-20
DE2449412A1 (en) 1975-04-30
BE821254A (en) 1975-02-17
FR2248429B1 (en) 1978-08-11

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