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FR2373703A1 - HYDRAULIC SYSTEM INCLUDING AT LEAST TWO USER DEVICES - Google Patents

HYDRAULIC SYSTEM INCLUDING AT LEAST TWO USER DEVICES

Info

Publication number
FR2373703A1
FR2373703A1 FR7737234A FR7737234A FR2373703A1 FR 2373703 A1 FR2373703 A1 FR 2373703A1 FR 7737234 A FR7737234 A FR 7737234A FR 7737234 A FR7737234 A FR 7737234A FR 2373703 A1 FR2373703 A1 FR 2373703A1
Authority
FR
France
Prior art keywords
pressure
action
constriction
system including
hydraulic system
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
FR7737234A
Other languages
French (fr)
Other versions
FR2373703B1 (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.)
Danfoss AS
Original Assignee
Danfoss AS
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 Danfoss AS filed Critical Danfoss AS
Publication of FR2373703A1 publication Critical patent/FR2373703A1/en
Application granted granted Critical
Publication of FR2373703B1 publication Critical patent/FR2373703B1/fr
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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/0416—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor with means or adapted for load sensing
    • F15B13/0417—Load sensing elements; Internal fluid connections therefor; Anti-saturation or pressure-compensation valves

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 Fluid Gearings (AREA)
  • Control Of Positive-Displacement Pumps (AREA)

Abstract

Le dispositif de commande est précédé d'un régulateur de pression soumis d'une part à la pression en amont de l'étranglement 15, 115, réglable par le levier 14 et d'autre part à la pression en aval de l'étranglement et à l'action d'un ressort 38, 138. Une soupape d'inversion 19 relie à la canalisation 20 celle des canalisations 18, 118 qui correspond à l'utilisateur dont la pression de charge est la plus forte. Une soupape de dérivation 21 soumise à l'action de la pression dans la canalisation d'alimentation 3 et à l'action combinée de la pression dans la canalisation 20 et d'un ressort 23 détermine de combien la pression fournie par la pompe doit être supérieure à la pression de charge la plus forte. Alimentation de dispositifs hydrauliques, notamment de servo-moteurs.The control device is preceded by a pressure regulator subjected on the one hand to the pressure upstream of the constriction 15, 115, adjustable by the lever 14 and on the other hand to the pressure downstream of the constriction and to the action of a spring 38, 138. A reversing valve 19 connects to the pipe 20 that of the pipes 18, 118 which corresponds to the user whose load pressure is the highest. A bypass valve 21 subjected to the action of the pressure in the supply line 3 and the combined action of the pressure in the line 20 and a spring 23 determines how much pressure supplied by the pump should be. greater than the highest charging pressure. Supply of hydraulic devices, in particular servo-motors.

FR7737234A 1976-12-10 1977-12-09 HYDRAULIC SYSTEM INCLUDING AT LEAST TWO USER DEVICES Granted FR2373703A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762656032 DE2656032B2 (en) 1976-12-10 1976-12-10 Hydraulic system with at least two consumers

Publications (2)

Publication Number Publication Date
FR2373703A1 true FR2373703A1 (en) 1978-07-07
FR2373703B1 FR2373703B1 (en) 1984-02-17

Family

ID=5995216

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7737234A Granted FR2373703A1 (en) 1976-12-10 1977-12-09 HYDRAULIC SYSTEM INCLUDING AT LEAST TWO USER DEVICES

Country Status (6)

Country Link
JP (1) JPS5391403A (en)
DE (1) DE2656032B2 (en)
DK (1) DK535677A (en)
FR (1) FR2373703A1 (en)
GB (1) GB1552203A (en)
IT (1) IT1091667B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2468040A1 (en) * 1979-10-24 1981-04-30 Cessna Aircraft Co HYDRAULIC CIRCUIT WITH FLOW CONTROL DISTRIBUTOR
EP0115590A2 (en) * 1982-12-30 1984-08-15 Robert Bosch Gmbh Hydraulic control device
EP0185985A2 (en) * 1984-12-28 1986-07-02 Karl Hehl Hydraulic device for the injection unit of a plastic material injection-moulding machine

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3320047A1 (en) * 1983-06-03 1984-12-06 Robert Bosch Gmbh, 7000 Stuttgart Hydraulic valve arrangement
DE3321483A1 (en) * 1983-06-14 1984-12-20 Linde Ag, 6200 Wiesbaden HYDRAULIC DEVICE WITH ONE PUMP AND AT LEAST TWO OF THESE INACTED CONSUMERS OF HYDRAULIC ENERGY
DE3422165A1 (en) * 1983-06-14 1984-12-20 Linde Ag, 6200 Wiesbaden Hydraulic arrangement with a pump and at least two consumers of hydraulic energy acted upon by this pump
US5495994A (en) * 1994-09-07 1996-03-05 Trw Vehicle Safety Systems Inc. Inertia sensitive seat belt retractor
US5894862A (en) * 1997-01-30 1999-04-20 Vickers, Incorporated Hydraulic damper
JP6495857B2 (en) * 2016-03-31 2019-04-03 日立建機株式会社 Construction machinery
DE102019134280A1 (en) 2018-12-13 2020-06-18 Leopold Sandberger Hydraulic differential pressure valve

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1541388A (en) * 1966-10-26 1968-10-04 Fawick Corp Device for controlling the speed and direction of operation of a fluid-operated apparatus
US3602243A (en) * 1969-07-07 1971-08-31 Eaton Yale & Towne Pressure compensated multifunction control valve
DE2139119A1 (en) * 1971-08-04 1973-02-15 Herion Werke Kg FLOW CONTROL VALVE
FR2283342A1 (en) * 1974-08-30 1976-03-26 Nisshin Sangyo Co Hydraulic control valve arrangement - contains direction valves, pressure compensation valves, pre-control pressure monitors, back pressure valves
FR2306352A1 (en) * 1975-04-03 1976-10-29 Danfoss As CONTROL PLANT FOR HYDRAULICALLY ACTUATED APPLIANCE

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1541388A (en) * 1966-10-26 1968-10-04 Fawick Corp Device for controlling the speed and direction of operation of a fluid-operated apparatus
US3602243A (en) * 1969-07-07 1971-08-31 Eaton Yale & Towne Pressure compensated multifunction control valve
DE2139119A1 (en) * 1971-08-04 1973-02-15 Herion Werke Kg FLOW CONTROL VALVE
FR2283342A1 (en) * 1974-08-30 1976-03-26 Nisshin Sangyo Co Hydraulic control valve arrangement - contains direction valves, pressure compensation valves, pre-control pressure monitors, back pressure valves
FR2306352A1 (en) * 1975-04-03 1976-10-29 Danfoss As CONTROL PLANT FOR HYDRAULICALLY ACTUATED APPLIANCE

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2468040A1 (en) * 1979-10-24 1981-04-30 Cessna Aircraft Co HYDRAULIC CIRCUIT WITH FLOW CONTROL DISTRIBUTOR
EP0115590A2 (en) * 1982-12-30 1984-08-15 Robert Bosch Gmbh Hydraulic control device
EP0115590A3 (en) * 1982-12-30 1984-10-03 Robert Bosch Gmbh Hydraulic control device
EP0185985A2 (en) * 1984-12-28 1986-07-02 Karl Hehl Hydraulic device for the injection unit of a plastic material injection-moulding machine
EP0185985A3 (en) * 1984-12-28 1988-04-27 Karl Hehl Hydraulic device for the injection unit of a plastic material injection-moulding machine

Also Published As

Publication number Publication date
FR2373703B1 (en) 1984-02-17
JPS5391403A (en) 1978-08-11
DK535677A (en) 1978-06-11
DE2656032A1 (en) 1978-06-15
GB1552203A (en) 1979-09-12
IT1091667B (en) 1985-07-06
DE2656032B2 (en) 1979-09-13

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Legal Events

Date Code Title Description
ST Notification of lapse