ES426974A1 - Hydraulic circuit - Google Patents

Hydraulic circuit

Info

Publication number
ES426974A1
ES426974A1 ES426974A ES426974A ES426974A1 ES 426974 A1 ES426974 A1 ES 426974A1 ES 426974 A ES426974 A ES 426974A ES 426974 A ES426974 A ES 426974A ES 426974 A1 ES426974 A1 ES 426974A1
Authority
ES
Spain
Prior art keywords
pressure
pressure sensor
circuit
pumps
mentioned above
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
ES426974A
Other languages
Spanish (es)
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.)
Poclain SA
Original Assignee
Poclain SA
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 Poclain SA filed Critical Poclain SA
Publication of ES426974A1 publication Critical patent/ES426974A1/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
    • 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
    • F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
    • 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
    • F15B2211/20576—Systems with pumps with multiple pumps
    • 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
    • F15B2211/327—Directional control characterised by the type of actuation electrically or electronically
    • 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
    • F15B2211/632—Electronic controllers using input signals representing a flow rate
    • 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
    • F15B2211/665—Methods of control using electronic components
    • F15B2211/6652—Control of the pressure source, e.g. control of the swash plate angle
    • 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
    • F15B2211/665—Methods of control using electronic components
    • F15B2211/6654—Flow rate control
    • 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
    • F15B2211/76—Control of force or torque of the output member

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)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Control Of Fluid Pressure (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

Regulation device, by means of the pressure of the distribution of a fluid under pressure in a hydraulic circuit of use (4) of variable pressure, from a source of fluid consisting of a group of pumps (1, 2, 3) of constant flow dragged by a motor (M) of constant power, characterized in that it is constituted by a gate device (5, 6, 7) provided with a control system (5a, 6a, 7a) arranged in each of the discharge lines (1a, 2a, 3a) of the pumps in question, capable of selectively establishing the communication of this discharge line with the use circuit (4) mentioned above, and with a fluid return line (8), by. a pressure sensor (9) arranged in said use circuit, and by a logic circuit device (10) connected by its input to the pressure sensor (9) and by its output to each of the control systems (5a, 6a, 7a) mentioned above, capable of emitting command signals to these control systems based on the results of a comparison established by him between the signal he receives at his input, from the pressure sensor mentioned on the one hand, and predetermined pressure values it contains, on the other hand. (Machine-translation by Google Translate, not legally binding)
ES426974A 1973-06-05 1974-06-04 Hydraulic circuit Expired ES426974A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7320411A FR2232692B3 (en) 1973-06-05 1973-06-05

Publications (1)

Publication Number Publication Date
ES426974A1 true ES426974A1 (en) 1976-07-16

Family

ID=9120530

Family Applications (2)

Application Number Title Priority Date Filing Date
ES426974A Expired ES426974A1 (en) 1973-06-05 1974-06-04 Hydraulic circuit
ES426973A Expired ES426973A1 (en) 1973-06-05 1974-06-04 Hydraulic circuit

Family Applications After (1)

Application Number Title Priority Date Filing Date
ES426973A Expired ES426973A1 (en) 1973-06-05 1974-06-04 Hydraulic circuit

Country Status (8)

Country Link
JP (2) JPS5022182A (en)
BE (2) BE815647A (en)
BR (2) BR7404588D0 (en)
DE (2) DE2426904A1 (en)
ES (2) ES426974A1 (en)
FR (1) FR2232692B3 (en)
GB (2) GB1461657A (en)
IT (2) IT1012891B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3800964A1 (en) * 1988-01-15 1989-07-27 Loewe Pumpenfabrik Gmbh Pump system for operating pump installations comprising a plurality of pumps
JP2776882B2 (en) * 1989-04-27 1998-07-16 株式会社ユニシアジェックス Pump device
US5199854A (en) * 1990-08-08 1993-04-06 Nissan Motor Co., Ltd. Hydraulic supply arrangement for use with active automotive suspension or the like
US5251442A (en) * 1991-10-24 1993-10-12 Roche Engineering Corporation Fluid power regenerator
US5319932A (en) * 1993-04-28 1994-06-14 Roche Engineering Corporation Power sensing regenerator
DE19930562A1 (en) * 1999-07-02 2001-01-04 Still Gmbh Hydraulic system for an industrial truck
US8690553B2 (en) * 2008-02-04 2014-04-08 Illinois Tool Works Inc. Service pack tandem pump
DE102011015903B4 (en) 2011-04-01 2021-12-16 Robert Bosch Gmbh Pump arrangement

Also Published As

Publication number Publication date
ES426973A1 (en) 1976-07-16
JPS5022182A (en) 1975-03-10
GB1461657A (en) 1977-01-19
GB1461658A (en) 1977-01-19
BE815647A (en) 1974-09-16
DE2426839A1 (en) 1975-01-09
DE2426904A1 (en) 1975-01-02
BE815648A (en) 1974-09-16
BR7404588D0 (en) 1975-01-07
IT1017630B (en) 1977-08-10
JPS5022181A (en) 1975-03-10
FR2232692B3 (en) 1976-07-23
IT1012891B (en) 1977-03-10
BR7404587A (en) 1976-02-10
BR7404587D0 (en) 1975-01-07
FR2232692A1 (en) 1975-01-03

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