FR1471412A - Dispositif hydraulique de contrôle d'une pompe - Google Patents
Dispositif hydraulique de contrôle d'une pompeInfo
- Publication number
- FR1471412A FR1471412A FR52937A FR52937A FR1471412A FR 1471412 A FR1471412 A FR 1471412A FR 52937 A FR52937 A FR 52937A FR 52937 A FR52937 A FR 52937A FR 1471412 A FR1471412 A FR 1471412A
- Authority
- FR
- France
- Prior art keywords
- control device
- hydraulic pump
- pump control
- hydraulic
- pump
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/08—Regulating by delivery pressure
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
- E02F9/2267—Valves or distributors
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
- E02F9/2271—Actuators and supports therefor and protection therefor
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2278—Hydraulic circuits
- E02F9/2296—Systems with a variable displacement pump
-
- 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
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
-
- 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
- F15B2211/20546—Type of pump variable capacity
- F15B2211/20553—Type of pump variable capacity with pilot circuit, e.g. for controlling a swash plate
-
- 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
- F15B2211/25—Pressure control functions
-
- 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
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/30525—Directional control valves, e.g. 4/3-directional 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
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/3056—Assemblies of multiple valves
-
- 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
- F15B2211/30—Directional control
- F15B2211/32—Directional control characterised by the type of actuation
- F15B2211/321—Directional control characterised by the type of actuation mechanically
- F15B2211/324—Directional control characterised by the type of actuation mechanically manually, e.g. by using a lever or pedal
-
- 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
- F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
- F15B2211/50536—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using unloading valves controlling the supply pressure by diverting fluid 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
- F15B2211/50—Pressure control
- F15B2211/555—Pressure control for assuring a minimum pressure, e.g. by using a back pressure 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
- F15B2211/60—Circuit components or control therefor
- F15B2211/605—Load sensing circuits
-
- 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
- F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
- F15B2211/7051—Linear output members
- F15B2211/7053—Double-acting output members
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fluid-Pressure Circuits (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US438566A US3366064A (en) | 1965-03-10 | 1965-03-10 | Control for hydraulic apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1471412A true FR1471412A (fr) | 1967-03-03 |
Family
ID=23741126
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR52937A Expired FR1471412A (fr) | 1965-03-10 | 1966-03-10 | Dispositif hydraulique de contrôle d'une pompe |
Country Status (7)
Country | Link |
---|---|
US (1) | US3366064A (fi) |
BE (1) | BE677562A (fi) |
DE (1) | DE1286365B (fi) |
FR (1) | FR1471412A (fi) |
GB (1) | GB1111912A (fi) |
NL (1) | NL6603080A (fi) |
SE (1) | SE312275B (fi) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0432934A1 (en) * | 1989-11-30 | 1991-06-19 | Lucas Western, Inc. | Variable displacement high pressure pump with internal power limiting arrangement |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3446020A (en) * | 1967-05-29 | 1969-05-27 | Borg Warner | Hydraulic transmission system |
US3549281A (en) * | 1968-12-03 | 1970-12-22 | Rex Chainbelt Inc | Variable volume vane type pump |
US3726089A (en) * | 1971-04-08 | 1973-04-10 | Dowty Technical Dev Ltd | Fluid-pressure-operable systems |
US3717175A (en) * | 1971-04-08 | 1973-02-20 | Dowty Technical Dev Ltd | Selector valves |
US3753627A (en) * | 1971-04-09 | 1973-08-21 | E Ward | Pump bypass liquid control |
US3732785A (en) * | 1971-04-30 | 1973-05-15 | Dowty Technical Dev Ltd | Fluid pressure apparatus |
US3788077A (en) * | 1972-07-13 | 1974-01-29 | Borg Warner | Open center control of variable pumps |
US3797245A (en) * | 1972-08-25 | 1974-03-19 | Caterpillar Tractor Co | Dual range pressure dependent variable flow fluid delivery system |
US3866419A (en) * | 1973-09-06 | 1975-02-18 | Parker Hannifin Corp | Integrated pressure compensated load sensing system |
US4072442A (en) * | 1975-07-04 | 1978-02-07 | Takeshi Horiuchi | Variable delivery hydraulic pump |
CA1104033A (en) * | 1977-02-24 | 1981-06-30 | Commercial Shearing, Inc. | Pressure and flow compensated control system with constant torque and viscosity sensing over-ride |
US4197705A (en) * | 1978-05-30 | 1980-04-15 | General Signal Corporation | Hydraulic control system |
DE3109045A1 (de) * | 1981-03-10 | 1982-09-16 | Alfred Teves Gmbh, 6000 Frankfurt | Regelbare hydraulikpumpe |
US4838756A (en) * | 1987-02-19 | 1989-06-13 | Deere & Company | Hydraulic system for an industrial machine |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2552604A (en) * | 1945-06-06 | 1951-05-15 | Ludwig Von Roll Schen Iron Wor | Fluid pressure control for variable delivery pump hydraulic drive system control |
DE938780C (de) * | 1948-10-02 | 1956-02-09 | Otto Ballert | Fahrbarer Loeffel- oder Greiferbagger |
US2605709A (en) * | 1949-08-18 | 1952-08-05 | Rolls Royce | Fuel metering means for gas-turbine engine fuel systems |
US2669935A (en) * | 1951-08-04 | 1954-02-23 | Hpm Dev Corp | Hydraulically actuated shift control for hydraulic pumps |
US2648312A (en) * | 1951-11-28 | 1953-08-11 | Hpm Dev Corp | Control operator for hydraulic pumps |
GB740318A (en) * | 1954-02-26 | 1955-11-09 | Dowty Hydraulic Units Ltd | Improvements relating to pressure relieving devices for hydraulic apparatus |
US2903852A (en) * | 1956-10-29 | 1959-09-15 | Lucas Industries Ltd | Control means for road vehicle hydraulic power transmission systems |
US2892312A (en) * | 1958-01-27 | 1959-06-30 | Deere & Co | Demand compensated hydraulic system |
US3077901A (en) * | 1960-06-27 | 1963-02-19 | Vickers Inc | Divided flow, control valve system |
FR1269287A (fr) * | 1960-06-30 | 1961-08-11 | Dispositif de commande de pompe et moteur à débit variable | |
FR1314577A (fr) * | 1961-11-30 | 1963-01-11 | Jacottet Paul Ets | Perfectionnements aux transmissions hydrauliques |
US3213805A (en) * | 1963-02-25 | 1965-10-26 | Bendix Corp | Pump control means |
FR1373126A (fr) * | 1963-08-07 | 1964-09-25 | New York Air Brake Co | Dispositif hydraulique, notamment compensateur pour groupe moto-pompe, de démarragede moteurs |
-
1965
- 1965-03-10 US US438566A patent/US3366064A/en not_active Expired - Lifetime
-
1966
- 1966-02-24 GB GB8146/66A patent/GB1111912A/en not_active Expired
- 1966-03-02 SE SE2748/66A patent/SE312275B/xx unknown
- 1966-03-09 BE BE677562D patent/BE677562A/xx unknown
- 1966-03-09 NL NL6603080A patent/NL6603080A/xx unknown
- 1966-03-09 DE DEB86121A patent/DE1286365B/de not_active Withdrawn
- 1966-03-10 FR FR52937A patent/FR1471412A/fr not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0432934A1 (en) * | 1989-11-30 | 1991-06-19 | Lucas Western, Inc. | Variable displacement high pressure pump with internal power limiting arrangement |
Also Published As
Publication number | Publication date |
---|---|
SE312275B (fi) | 1969-07-07 |
NL6603080A (fi) | 1966-09-12 |
GB1111912A (en) | 1968-05-01 |
DE1286365B (de) | 1969-01-02 |
BE677562A (fi) | 1966-08-01 |
US3366064A (en) | 1968-01-30 |
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