FR2353735B1 - - Google Patents
Info
- Publication number
- FR2353735B1 FR2353735B1 FR7717057A FR7717057A FR2353735B1 FR 2353735 B1 FR2353735 B1 FR 2353735B1 FR 7717057 A FR7717057 A FR 7717057A FR 7717057 A FR7717057 A FR 7717057A FR 2353735 B1 FR2353735 B1 FR 2353735B1
- Authority
- FR
- France
- 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
Links
Classifications
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- 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
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- 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
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 FR2353735A1 (en) | 1977-12-30 |
FR2353735B1 true 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) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2808196A1 (en) * | 1978-02-25 | 1979-09-06 | Bosch Gmbh Robert | HYDRAULIC CONTROL DEVICE |
DE2855749A1 (en) * | 1978-12-22 | 1980-06-26 | Int Harvester Co | HYDRAULIC CONTROL DEVICE FOR DISTRIBUTING PRESSURE LIQUID AT LEAST ONE, IN PARTICULAR, FROM TWO PRESSURE LIQUID SOURCES TO SEVERAL VARIOUS CONSUMERS |
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 |
Family Cites Families (3)
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 |
DE2435602C3 (en) * | 1974-07-24 | 1980-06-12 | International Harvester Company Mbh, 4040 Neuss | Automatic control device for distributing the pressure medium to two hydraulic systems |
-
1976
- 1976-06-04 DE DE19762625101 patent/DE2625101C2/en not_active Expired
-
1977
- 1977-06-01 GB GB2325177A patent/GB1568583A/en not_active Expired
- 1977-06-03 FR FR7717057A patent/FR2353735A1/en active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2353735A1 (en) | 1977-12-30 |
GB1568583A (en) | 1980-06-04 |
DE2625101C2 (en) | 1985-11-14 |
DE2625101A1 (en) | 1977-12-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |