FR2443000A1 - HYDRAULIC CONTROL GROUP - Google Patents

HYDRAULIC CONTROL GROUP

Info

Publication number
FR2443000A1
FR2443000A1 FR7929415A FR7929415A FR2443000A1 FR 2443000 A1 FR2443000 A1 FR 2443000A1 FR 7929415 A FR7929415 A FR 7929415A FR 7929415 A FR7929415 A FR 7929415A FR 2443000 A1 FR2443000 A1 FR 2443000A1
Authority
FR
France
Prior art keywords
pressure
pump
hydraulic
hydraulic control
regulating 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.)
Granted
Application number
FR7929415A
Other languages
French (fr)
Other versions
FR2443000B1 (en
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.)
Bosch Rexroth AG
Original Assignee
GL Rexroth GmbH
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 GL Rexroth GmbH filed Critical GL Rexroth GmbH
Publication of FR2443000A1 publication Critical patent/FR2443000A1/en
Application granted granted Critical
Publication of FR2443000B1 publication Critical patent/FR2443000B1/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/42—Control of exclusively fluid gearing hydrostatic involving adjustment of a pump or motor with adjustable output or capacity
    • F16H61/433—Pump capacity control by fluid pressure control means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/42—Control of exclusively fluid gearing hydrostatic involving adjustment of a pump or motor with adjustable output or capacity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/46—Automatic regulation in accordance with output requirements
    • F16H61/472—Automatic regulation in accordance with output requirements for achieving a target output torque

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Control Of Positive-Displacement Pumps (AREA)

Abstract

L'invention, applicable au domaine de la commande hydraulique notamment de machines, concerne un groupe de commande hydraulique qui, constitué par une pompe hydraulique à débit réglable et un moteur hydraulique, comporte un mécanisme régulateur fixant le débit de la pompe ainsi qu'une vanne régulatrice de pression coopérant avec le dispositif de réglage de la pompe. Du côté de sortie 4 du moteur hydraulique 3 est prévu un régulateur de débit 5 et au dispositif de réglage 1a, 1b, 12 de la pompe à débit réglable 1 est associée une seconde vanne régulatrice de pression dont l'espace sous pression hydraulique 13b communique avec le conduit 4 mettant le moteur hydraulique 3 en communication avec le régulateur de débit 5, la pression sur laquelle la seconde vanne régulatrice de pression 13 est réglée étant supérieure ou égale à la pression à laquelle le régulateur de débit réagit.The invention, applicable to the field of hydraulic control in particular of machines, relates to a hydraulic control unit which, consisting of a hydraulic pump with adjustable flow rate and a hydraulic motor, comprises a regulating mechanism fixing the flow rate of the pump as well as a pressure regulating valve cooperating with the pump regulating device. On the outlet side 4 of the hydraulic motor 3 is provided a flow regulator 5 and to the regulating device 1a, 1b, 12 of the adjustable flow pump 1 is associated a second pressure regulating valve, the space under hydraulic pressure 13b communicating with with the conduit 4 putting the hydraulic motor 3 in communication with the flow regulator 5, the pressure on which the second pressure regulating valve 13 is set being greater than or equal to the pressure to which the flow regulator reacts.

FR7929415A 1978-11-30 1979-11-29 HYDRAULIC CONTROL GROUP Expired FR2443000B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2851705A DE2851705C2 (en) 1978-11-30 1978-11-30 Delivery flow pressure control device for a hydrostatic transmission

Publications (2)

Publication Number Publication Date
FR2443000A1 true FR2443000A1 (en) 1980-06-27
FR2443000B1 FR2443000B1 (en) 1985-10-18

Family

ID=6055868

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7929415A Expired FR2443000B1 (en) 1978-11-30 1979-11-29 HYDRAULIC CONTROL GROUP

Country Status (6)

Country Link
JP (1) JPS5576203A (en)
CH (1) CH641257A5 (en)
DE (1) DE2851705C2 (en)
FR (1) FR2443000B1 (en)
GB (1) GB2037955B (en)
IT (1) IT1209148B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3844399C2 (en) * 1988-12-30 1997-08-07 Rexroth Mannesmann Gmbh Control arrangement for several independently operable hydraulic consumers and their use

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB642247A (en) * 1946-04-01 1950-08-30 New York Air Brake Co Improvements relating to the hydraulic transmission of power
GB1169026A (en) * 1965-11-23 1969-10-29 Abex Corp Hydraulic Transmission and Control Device
GB1217201A (en) * 1967-04-25 1970-12-31 Allied Power Ind Inc Hydrostatic transmission system
GB1348852A (en) * 1971-05-12 1974-03-27 Bosch Gmbh Robert Hydraulic system with an adjustable pump

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2238061A (en) * 1938-05-12 1941-04-15 Manly Corp Fluid pressure system and control therefor
US2548146A (en) * 1947-04-03 1951-04-10 Oilgear Co Hydraulic transmission, including one pump and a plurality of motors
US3486334A (en) * 1968-05-16 1969-12-30 Cessna Aircraft Co Hydraulic power transmission control

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB642247A (en) * 1946-04-01 1950-08-30 New York Air Brake Co Improvements relating to the hydraulic transmission of power
GB1169026A (en) * 1965-11-23 1969-10-29 Abex Corp Hydraulic Transmission and Control Device
GB1217201A (en) * 1967-04-25 1970-12-31 Allied Power Ind Inc Hydrostatic transmission system
GB1348852A (en) * 1971-05-12 1974-03-27 Bosch Gmbh Robert Hydraulic system with an adjustable pump

Also Published As

Publication number Publication date
CH641257A5 (en) 1984-02-15
IT1209148B (en) 1989-07-10
GB2037955A (en) 1980-07-16
FR2443000B1 (en) 1985-10-18
JPS5576203A (en) 1980-06-09
IT7927591A0 (en) 1979-11-27
DE2851705C2 (en) 1983-08-11
GB2037955B (en) 1983-08-10
DE2851705A1 (en) 1980-06-04

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Legal Events

Date Code Title Description
CD Change of name or company name
ST Notification of lapse