FR1207909A - Hydraulic system for mobile equipment - Google Patents

Hydraulic system for mobile equipment

Info

Publication number
FR1207909A
FR1207909A FR1207909DA FR1207909A FR 1207909 A FR1207909 A FR 1207909A FR 1207909D A FR1207909D A FR 1207909DA FR 1207909 A FR1207909 A FR 1207909A
Authority
FR
France
Prior art keywords
hydraulic system
mobile equipment
mobile
equipment
hydraulic
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
Application number
Other languages
French (fr)
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.)
Sundstrand Machine Tool Co
Original Assignee
Sundstrand Machine Tool Co
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 Sundstrand Machine Tool Co filed Critical Sundstrand Machine Tool Co
Application granted granted Critical
Publication of FR1207909A publication Critical patent/FR1207909A/en
Expired 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/20—Means for actuating or controlling masts, platforms, or forks
    • B66F9/22—Hydraulic devices or systems
    • 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
    • F15B2211/31—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
    • F15B2211/327—Directional control characterised by the type of actuation electrically or electronically
    • 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
    • F15B2211/329—Directional control characterised by the type of actuation actuated by fluid pressure
    • 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
    • F15B2211/42—Flow control characterised by the type of actuation
    • F15B2211/421—Flow control characterised by the type of actuation mechanically
    • F15B2211/423—Flow 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
    • F15B2211/40—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
    • F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
    • F15B2211/50518—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using pressure relief valves
    • F15B2211/50527—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using pressure relief valves using cross-pressure relief 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
    • F15B2211/50—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
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/635—Circuits providing pilot pressure to pilot pressure-controlled fluid circuit elements
    • F15B2211/6355—Circuits providing pilot pressure to pilot pressure-controlled fluid circuit elements having valve means
    • 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
    • F15B2211/7058—Rotary 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
    • 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
    • F15B2211/76—Control of force or torque of the output member
    • F15B2211/763—Control of torque of the output member by means of a variable capacity motor, i.e. by a secondary control on the motor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S74/00—Machine element or mechanism
    • Y10S74/02—Miscellaneous control systems, e.g. ship propulsion, machine tools

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Civil Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Fluid-Pressure Circuits (AREA)
FR1207909D 1957-07-23 1958-07-22 Hydraulic system for mobile equipment Expired FR1207909A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US673666A US2941365A (en) 1957-07-23 1957-07-23 Hydraulic transmission

Publications (1)

Publication Number Publication Date
FR1207909A true FR1207909A (en) 1960-02-19

Family

ID=24703606

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1207909D Expired FR1207909A (en) 1957-07-23 1958-07-22 Hydraulic system for mobile equipment

Country Status (2)

Country Link
US (1) US2941365A (en)
FR (1) FR1207909A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2569786A1 (en) * 1984-08-31 1986-03-07 Vickers Systems Sa HIGH PRESSURE HYDRAULIC DISPENSER WITH PILOT PRESSURE GENERATOR

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1228473A (en) * 1959-04-22 1960-08-31 Cima Continuously variable speed transmission device for vehicle
US3064681A (en) * 1959-12-09 1962-11-20 Cleveland Trencher Co Hydraulic control system and hydraulic control valve therefor
US3058297A (en) * 1960-04-26 1962-10-16 Lucas Industries Ltd Transmission system for use in a vehicle
US3049884A (en) * 1960-07-13 1962-08-21 Yale & Towne Mfg Co Hydraulic transmission
US3078656A (en) * 1960-10-28 1963-02-26 Int Harvester Co Governor mechanism for hydrostatically driven vehicle
US3132477A (en) * 1961-07-07 1964-05-12 Egger James Crawford Steering and water propulsion system for watercraft
US3093297A (en) * 1961-09-25 1963-06-11 New York Air Brake Co Hydrostatic transmission
US3199286A (en) * 1962-05-16 1965-08-10 Gar Wood Ind Inc Hydrostatic drive
US3251304A (en) * 1963-08-05 1966-05-17 Drott Mfg Corp Variable volume pump control
US3186162A (en) * 1963-09-10 1965-06-01 Gen Mecanique Applique S I G M Prime mover systems
US3194017A (en) * 1963-12-11 1965-07-13 New York Air Brake Co Hydrostatic transmission
US3246465A (en) * 1964-02-20 1966-04-19 Ford Motor Co Control system for a hydrostatic transmission
US3248869A (en) * 1964-12-31 1966-05-03 Holley Carburetor Co Means for supplying power on demand
US3304710A (en) * 1965-05-03 1967-02-21 Eaton Yale & Towne Hydrostatic transmission
FR1588609A (en) * 1968-09-20 1970-04-17
US3717992A (en) * 1970-12-01 1973-02-27 Lucas Industries Ltd Control arrangement for hydraulic transmission system
US3717175A (en) * 1971-04-08 1973-02-20 Dowty Technical Dev Ltd Selector valves
US3726093A (en) * 1971-11-15 1973-04-10 Parker Hannifin Corp Pump control system
US3747472A (en) * 1971-12-17 1973-07-24 Applied Power Inc Flexible cable hydraulic control means
BE793325A (en) * 1971-12-27 1973-06-27 Caterpillar Tractor Co Hydraulic drive and steering system for tracked type vehicles.
US3771777A (en) * 1971-12-29 1973-11-13 Pennsylvania Engineering Corp Converter vessel drive using hydraulic motors
US3854380A (en) * 1972-06-23 1974-12-17 Caterpillar Tractor Co Three-way lever control for hydraulic control circuit
US3840132A (en) * 1972-06-28 1974-10-08 Int Harvester Co Electro-hydraulic control circuit for backhoe
JPS4965466A (en) * 1972-10-31 1974-06-25
US3827239A (en) * 1972-11-10 1974-08-06 Tex Trans Inc Hydraulic power transmission and braking system for vehicles
US4040254A (en) * 1976-03-25 1977-08-09 Eaton Corporation Hydrostatic transmission with automatic displacement shifter
US4067193A (en) * 1976-11-22 1978-01-10 Caterpillar Tractor Co. Combined hydrostatic transmission implement system
JPS55501190A (en) * 1979-02-08 1980-12-25
US4189920A (en) * 1979-02-08 1980-02-26 Caterpillar Tractor Co. Load signal control of hydraulic motor displacement
US4864994A (en) * 1981-11-16 1989-09-12 Sundstrand Corporation Engine override controls
DE3443354A1 (en) * 1984-11-28 1986-05-28 Robert Bosch Gmbh, 7000 Stuttgart HYDRAULIC SYSTEM
US5062265A (en) * 1989-08-01 1991-11-05 Sundstrand Corporation Hydromechanical control of differential pressure across a variable displacement hydraulic motor
US7344465B2 (en) * 2005-07-28 2008-03-18 Caterpillar Inc. Drive system for a machine

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1928915A (en) * 1932-04-27 1933-10-03 William B Stout Control device
US2026776A (en) * 1934-07-09 1936-01-07 Oilgear Co Hydraulic transmission
US2135157A (en) * 1937-02-15 1938-11-01 Lapointe Machine Tool Co Vertical hydraulic broaching machine
US2330567A (en) * 1937-05-11 1943-09-28 Ehrenberg Hermann Feed apparatus for profile copying machines
US2263779A (en) * 1938-05-06 1941-11-25 Jeffrey Mfg Co Mining machine
US2224725A (en) * 1939-01-19 1940-12-10 Jr George H Felt Bulldozer blade tilting device
US2316926A (en) * 1941-03-11 1943-04-20 Vickers Inc Power transmission
US2320601A (en) * 1943-01-20 1943-06-01 Roy C Howell Industrial truck
US2374909A (en) * 1943-11-13 1945-05-01 Clark Equipment Co Brake applying means
US2600632A (en) * 1945-11-14 1952-06-17 Heil Co Variable capacity vane-type rotary pump including automatic means for maintaining uniform delivery
US2664708A (en) * 1950-03-07 1954-01-05 Allis Chalmers Mfg Co Hydraulic control system
US2774436A (en) * 1951-09-28 1956-12-18 Oilgear Co Hydraulic drive for industrial trucks and combined engine and pump control therefor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2569786A1 (en) * 1984-08-31 1986-03-07 Vickers Systems Sa HIGH PRESSURE HYDRAULIC DISPENSER WITH PILOT PRESSURE GENERATOR
EP0176381A1 (en) * 1984-08-31 1986-04-02 Vickers Systems Sa High-pressure hydraulic directional control valve with a pilot pressure generator

Also Published As

Publication number Publication date
US2941365A (en) 1960-06-21

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