GB1178256A - Improvements in or relating to Control Means for Hydraulic Units. - Google Patents

Improvements in or relating to Control Means for Hydraulic Units.

Info

Publication number
GB1178256A
GB1178256A GB5810966A GB5810966A GB1178256A GB 1178256 A GB1178256 A GB 1178256A GB 5810966 A GB5810966 A GB 5810966A GB 5810966 A GB5810966 A GB 5810966A GB 1178256 A GB1178256 A GB 1178256A
Authority
GB
United Kingdom
Prior art keywords
motor
displacements
rods
pump
motors
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
GB5810966A
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.)
Linde GmbH
Original Assignee
Linde 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 Linde GmbH filed Critical Linde GmbH
Publication of GB1178256A publication Critical patent/GB1178256A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/42—Control of exclusively fluid gearing hydrostatic involving adjustment of a pump or motor with adjustable output or capacity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/10—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of fluid gearing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/42—Control of exclusively fluid gearing hydrostatic involving adjustment of a pump or motor with adjustable output or capacity
    • F16H61/421—Motor capacity control by electro-hydraulic control means, e.g. using solenoid valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/44—Control of exclusively fluid gearing hydrostatic with more than one pump or motor in operation
    • F16H61/456—Control of the balance of torque or speed between pumps or motors

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Motor Power Transmission Devices (AREA)
  • Hydraulic Motors (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Control Of Fluid Gearings (AREA)
  • Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)

Abstract

1,178,256. Hydrostatic transmission control. LINDE A.G. 29 Dec., 1966 [31 Dec., 1965], No. 58109/66. Headings F2C and F2D. In a control system for a hydrostatic transmission in a vehicle steered by angular movement of its wheels wherein two variable displacement motor units 8, 9 are interconnected for conjoint identical variation of their displacements, means are provided which permit differential variation of their displacements. In Fig. 1, an engine 3 of a motor vehicle drives a variable displacement pump 5 supplying pressure liquid to parallel variable displacement motors 8, 9 driving the vehicle wheels 2. The pump 5 is controlled by a manually operated valve 12 and follow-up servo-motor 11. The control linkage 10 of the pump 5 is fast with a lever 14 connected through lost motion spring couplings 17 and rods 16 to the motor control means so that the displacements of the pump and both motors are normally varied together. Differential variation of the displacement of the motors is effected by a manually operated lever system 18, 19, 20 acting . directly on the rods 16. The lost motion spring couplings 17 permitting the rods 16 to move relative to cylinders 15. In Fig. 2 (notshown), the differential variation of the motor displacements is effected by selectively supplying pressure liquid to either side of pistons (22) fast with the rods (16) and slidable in cylinders (21) containing the lost motion spring couplings (17a).
GB5810966A 1965-12-31 1966-12-29 Improvements in or relating to Control Means for Hydraulic Units. Expired GB1178256A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL0052516 1965-12-31

Publications (1)

Publication Number Publication Date
GB1178256A true GB1178256A (en) 1970-01-21

Family

ID=7274769

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5810966A Expired GB1178256A (en) 1965-12-31 1966-12-29 Improvements in or relating to Control Means for Hydraulic Units.

Country Status (3)

Country Link
JP (1) JPS4844218B1 (en)
FR (1) FR1505246A (en)
GB (1) GB1178256A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2141495A (en) * 1983-05-10 1984-12-19 Barry Meredith Eyres Hydrostatic/mechanical transmission
EP1760314A3 (en) * 2003-07-15 2007-03-14 Government of the United States of America, Opposing pump/motors
US7337869B2 (en) 2000-01-10 2008-03-04 The United States Of America As Represented By The Administrator Of The United States Environmental Protection Agency Hydraulic hybrid vehicle with integrated hydraulic drive module and four-wheel-drive, and method of operation thereof
US7984783B2 (en) 2000-01-10 2011-07-26 The United States Of America As Represented By The Administrator Of The U.S. Environmental Protection Agency Hydraulic hybrid vehicle with integrated hydraulic drive module and four-wheel-drive, and method of operation thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2173746A (en) * 1985-04-15 1986-10-22 Ukrniiskhom Uk Nii Selskokhozy Steering and propelling a vehicle

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2141495A (en) * 1983-05-10 1984-12-19 Barry Meredith Eyres Hydrostatic/mechanical transmission
US7337869B2 (en) 2000-01-10 2008-03-04 The United States Of America As Represented By The Administrator Of The United States Environmental Protection Agency Hydraulic hybrid vehicle with integrated hydraulic drive module and four-wheel-drive, and method of operation thereof
US7374005B2 (en) 2000-01-10 2008-05-20 The United States Of America As Represented By The Administrator Of The U.S. Environmental Protection Agency Opposing pump/motors
US7984783B2 (en) 2000-01-10 2011-07-26 The United States Of America As Represented By The Administrator Of The U.S. Environmental Protection Agency Hydraulic hybrid vehicle with integrated hydraulic drive module and four-wheel-drive, and method of operation thereof
US8162094B2 (en) 2000-01-10 2012-04-24 The United States Of America, As Represented By The Administrator Of The U.S. Environmental Protection Agency Hydraulic hybrid vehicle with large-ratio shift transmission and method of operation thereof
EP1760314A3 (en) * 2003-07-15 2007-03-14 Government of the United States of America, Opposing pump/motors

Also Published As

Publication number Publication date
FR1505246A (en) 1967-12-08
JPS4844218B1 (en) 1973-12-24

Similar Documents

Publication Publication Date Title
GB1117666A (en) Hydrostatic transmission
GB1368664A (en) Hydraulic system comprising a variable displacement pump and a control circuit
GB1233620A (en)
GB1126363A (en) Hydrostatic power transmission
GB1387491A (en) Variable displacement piston pumps or motors
GB1435932A (en) Hydrostatic transmission drive system
GB1220727A (en) Control response valve for hydrostatic transmission
GB1435931A (en) Hydrostatic transmissions
GB979453A (en) Control apparatus for vehicles
GB1432395A (en) Steering actuated motor displacement control valve
GB1178256A (en) Improvements in or relating to Control Means for Hydraulic Units.
GB975527A (en) Improvements relating to motor vehicles
GB1393747A (en) Hydrostatic transmission speed and steering control system
GB1481835A (en) Clutch actuating means
ES416543A1 (en) Servo steering device, especially for automobiles
ES422564A1 (en) Hydrastatic control for pivot steering
US3657888A (en) Hydraulic power steering apparatus
GB1328459A (en) Apparatus for controlling a double acting piston and cylinder assembly
GB1131750A (en) Improvements in or relating to hydraulic drive systems
GB1221898A (en) Control systems for variable-ratio power transmission mechanisms.
US3554089A (en) Servosteering system
GB1418791A (en) Hydrostatic drive control system
GB1282829A (en) Conversion of a variable delivery pump to fixed delivery pump
GB527013A (en) Improvements in steering gear
GB1020996A (en) Prime mover installations for land vehicles