FR2353735A1 - HYDRAULIC CONTROL DEVICE FOR THE DISTRIBUTION OF PRESSURIZED FLUID BETWEEN TWO SYSTEMS - Google Patents

HYDRAULIC CONTROL DEVICE FOR THE DISTRIBUTION OF PRESSURIZED FLUID BETWEEN TWO SYSTEMS

Info

Publication number
FR2353735A1
FR2353735A1 FR7717057A FR7717057A FR2353735A1 FR 2353735 A1 FR2353735 A1 FR 2353735A1 FR 7717057 A FR7717057 A FR 7717057A FR 7717057 A FR7717057 A FR 7717057A FR 2353735 A1 FR2353735 A1 FR 2353735A1
Authority
FR
France
Prior art keywords
distribution
systems
control device
hydraulic control
pressurized fluid
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
FR7717057A
Other languages
French (fr)
Other versions
FR2353735B1 (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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of FR2353735A1 publication Critical patent/FR2353735A1/en
Application granted granted Critical
Publication of FR2353735B1 publication Critical patent/FR2353735B1/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
    • 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
    • F15B2211/2053—Type of pump
    • F15B2211/20538—Type of pump constant 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
    • F15B2211/20576—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
    • F15B2211/31—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
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40515—Flow control characterised by the type of flow control means or valve with variable throttles or orifices
    • 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
    • F15B2211/40—Flow control
    • F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
    • F15B2211/41509—Flow control characterised by the connections of the flow control means in the circuit being connected to a pressure source and a directional control valve
    • F15B2211/41518—Flow control characterised by the connections of the flow control means in the circuit being connected to a pressure source and a directional control valve being connected to multiple pressure sources
    • 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
    • F15B2211/40—Flow control
    • F15B2211/45—Control of bleed-off flow, e.g. control of bypass flow to the return line
    • 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
    • F15B2211/40—Flow control
    • F15B2211/455—Control of flow in the feed line, i.e. meter-in 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
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50563—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure
    • F15B2211/50572—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure using a pressure compensating valve for controlling the pressure difference across a flow control valve
    • 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
    • F15B2211/7142—Multiple output members, e.g. multiple hydraulic motors or cylinders the output members being arranged in multiple groups
FR7717057A 1976-06-04 1977-06-03 HYDRAULIC CONTROL DEVICE FOR THE DISTRIBUTION OF PRESSURIZED FLUID BETWEEN TWO SYSTEMS Granted FR2353735A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762625101 DE2625101C2 (en) 1976-06-04 1976-06-04 Hydraulic control device for the volume flow-dependent distribution of hydraulic fluid between two systems

Publications (2)

Publication Number Publication Date
FR2353735A1 true FR2353735A1 (en) 1977-12-30
FR2353735B1 FR2353735B1 (en) 1983-10-21

Family

ID=5979803

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7717057A Granted FR2353735A1 (en) 1976-06-04 1977-06-03 HYDRAULIC CONTROL DEVICE FOR THE DISTRIBUTION OF PRESSURIZED FLUID BETWEEN TWO SYSTEMS

Country Status (3)

Country Link
DE (1) DE2625101C2 (en)
FR (1) FR2353735A1 (en)
GB (1) GB1568583A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2418358A1 (en) * 1978-02-25 1979-09-21 Bosch Gmbh Robert HYDRAULIC CONTROL DEVICE FOR DISTRIBUTING PRESSURE FLUID TO AT LEAST TWO SYSTEMS EACH INCLUDING AT LEAST ONE PUMP OR OTHER PRESSURE FLUID SOURCE
FR2444397A1 (en) * 1978-12-22 1980-07-18 Int Harvester Co Hydraulic controller for distributing hydraulic fluid - is coupled to hydraulic lifting cylinder of farm tractor with non return valve

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3016943A1 (en) * 1980-05-02 1981-11-05 Robert Bosch Gmbh, 7000 Stuttgart HYDRAULIC SYSTEM WITH TWO PUMPS
DE3203465A1 (en) * 1982-02-03 1983-08-11 Klöckner-Humboldt-Deutz AG, 5000 Köln PRINTING MEDIUM CIRCUIT, IN PARTICULAR FOR A MOWING MACHINE
DE3319533A1 (en) * 1983-05-28 1984-11-29 Klöckner-Humboldt-Deutz AG, 5000 Köln HYDRAULIC CONTROL SYSTEM FOR THE STEERING AND WORKING HYDRAULICS ON VEHICLES
GB2166098B (en) * 1984-10-31 1987-10-28 Trw Cam Gears Ltd Vehicle hydraulic servo system
DE3626650C2 (en) * 1986-08-06 1997-04-10 Linde Ag Motor vehicle with a drive unit and a power steering device
CN103016457B (en) * 2012-12-05 2015-08-26 中联重科股份有限公司 Hydraulic pump control, vehicle and steering hydraulic system thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2280130A1 (en) * 1974-07-24 1976-02-20 Int Harvester Co AUTOMATIC CONTROL SYSTEM INTENDED FOR THE DISTRIBUTION OF A LIQUID UNDER PRESSURE IN TWO HYDRAULIC CIRCUITS

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3279558A (en) * 1962-09-17 1966-10-18 Fawick Corp Flow divider and flow-dividing hydraulic system
US3535877A (en) * 1969-05-09 1970-10-27 Gen Signal Corp Three-pump hydraulic system incorporating an unloader

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2280130A1 (en) * 1974-07-24 1976-02-20 Int Harvester Co AUTOMATIC CONTROL SYSTEM INTENDED FOR THE DISTRIBUTION OF A LIQUID UNDER PRESSURE IN TWO HYDRAULIC CIRCUITS

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2418358A1 (en) * 1978-02-25 1979-09-21 Bosch Gmbh Robert HYDRAULIC CONTROL DEVICE FOR DISTRIBUTING PRESSURE FLUID TO AT LEAST TWO SYSTEMS EACH INCLUDING AT LEAST ONE PUMP OR OTHER PRESSURE FLUID SOURCE
FR2444397A1 (en) * 1978-12-22 1980-07-18 Int Harvester Co Hydraulic controller for distributing hydraulic fluid - is coupled to hydraulic lifting cylinder of farm tractor with non return valve

Also Published As

Publication number Publication date
GB1568583A (en) 1980-06-04
DE2625101C2 (en) 1985-11-14
FR2353735B1 (en) 1983-10-21
DE2625101A1 (en) 1977-12-22

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Legal Events

Date Code Title Description
ST Notification of lapse