GB1418375A - Contrallable hydrostatic drives for auxiliary components driven from engines - Google Patents

Contrallable hydrostatic drives for auxiliary components driven from engines

Info

Publication number
GB1418375A
GB1418375A GB5502873A GB5502873A GB1418375A GB 1418375 A GB1418375 A GB 1418375A GB 5502873 A GB5502873 A GB 5502873A GB 5502873 A GB5502873 A GB 5502873A GB 1418375 A GB1418375 A GB 1418375A
Authority
GB
United Kingdom
Prior art keywords
pressure
valve
piston
pump
steering
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
GB5502873A
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.)
Daimler Benz AG
Original Assignee
Daimler Benz AG
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 Daimler Benz AG filed Critical Daimler Benz AG
Publication of GB1418375A publication Critical patent/GB1418375A/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
    • F16H61/433—Pump capacity control by fluid pressure control means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/07—Supply of pressurised fluid for steering also supplying other consumers ; control thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/02—Controlling of coolant flow the coolant being cooling-air
    • F01P7/04—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio
    • F01P7/044—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio using hydraulic drives
    • 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
    • F16H61/46—Automatic regulation in accordance with output requirements
    • 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
    • F16H61/46—Automatic regulation in accordance with output requirements
    • F16H61/47—Automatic regulation in accordance with output requirements for achieving a target output speed
    • 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
    • B60K25/00—Auxiliary drives
    • B60K25/02—Auxiliary drives directly from an engine shaft
    • B60K2025/026—Auxiliary drives directly from an engine shaft by a hydraulic transmission

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Power Steering Mechanism (AREA)
  • Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)

Abstract

1418375 Hydrostatic transmissions DAIMLER-BENZ AG 27 Nov 1973 [28 Nov 1972] 55028/73 Heading F2W A hydrostatic drive, comprising a variable delivery pump 10 supplying a motor 11 which drives auxilary components of an internal combustion vehicle engine, e.g. the fan, dynamo and coolant or oil pump, also supplies fluid under pressure to another auxiliary component. The auxiliary component described is a servosteering system 25. The pump 10 supplies fluid through a restrictor 17, the pressure drop across which is applied to a double acting piston 14 by lines 21 and 22, the piston adjusting the pump output, and through a pressure regulating valve 18 to the motor 11 (via line 16a), an output limiting valve 19 also being provided which can supply pressure fluid to a further pump adjusting piston 15 if the output pressure is high enough. The servo-steering system 25 is supplied through a flow regulating valve 27 having a piston 28 acted on by the pressure drop across a restrictor 26 the valve 27 also being controlled by the pressure in the valve output line 24 acting on a piston 29 to reduce flow when the steering is in the straight ahead position. A maximum pressure valve 30 and an excess pressure valve 31 are also provided. A feed pump 12 in conjunction with a relief valve 13 supplies the hydrostatic transmission. The valve 18 of the hydrostatic transmission is acted on by the pressure in line 24 of the steering supply to cause the valve 18 to produce a higher regulated pressure by stressing of spring 33 when the steering is operated and pressure in line 24 increases. The motor 11 may be of variable capacity. The restrictor 17 may be at position 17a downstream of valve 18 rather than upstream as shown.
GB5502873A 1972-11-28 1973-11-27 Contrallable hydrostatic drives for auxiliary components driven from engines Expired GB1418375A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722258138 DE2258138C2 (en) 1972-11-28 1972-11-28 Hydrostatic drive for the auxiliary units of an internal combustion engine of a motor vehicle

Publications (1)

Publication Number Publication Date
GB1418375A true GB1418375A (en) 1975-12-17

Family

ID=5862872

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5502873A Expired GB1418375A (en) 1972-11-28 1973-11-27 Contrallable hydrostatic drives for auxiliary components driven from engines

Country Status (3)

Country Link
DE (1) DE2258138C2 (en)
FR (1) FR2208449A5 (en)
GB (1) GB1418375A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102777446A (en) * 2012-07-17 2012-11-14 徐州铭硕机械科技有限公司 Oil-water conversion variable displacement emulsion pump station

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3903199C1 (en) * 1989-02-03 1990-04-05 Sueddeutsche Kuehlerfabrik Julius Fr. Behr Gmbh & Co Kg, 7000 Stuttgart, De
DE19703997A1 (en) 1997-02-04 1998-08-06 Mannesmann Rexroth Ag Hydraulic control circuit for a priority and for a subordinate hydraulic consumer
FR3139134A1 (en) 2022-08-23 2024-03-01 Azuvia Device for treating organic effluents

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1093684B (en) * 1957-02-08 1960-11-24 Dr Hans Thoma Hydraulic drive device for a fan and / or an alternator and power steering by means of a common pump in motor vehicles
DE1143673B (en) * 1958-04-02 1963-02-14 Bosch Gmbh Robert Hydrostatic auxiliary device drive
GB1284904A (en) * 1969-07-15 1972-08-09 Rolls Royce Drive means for the cooling fan of an internal combustion engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102777446A (en) * 2012-07-17 2012-11-14 徐州铭硕机械科技有限公司 Oil-water conversion variable displacement emulsion pump station
CN102777446B (en) * 2012-07-17 2015-09-23 徐州铭硕机械科技有限公司 A kind of oil-water conversion variable displacement emulsion pump station

Also Published As

Publication number Publication date
DE2258138C2 (en) 1984-06-28
FR2208449A5 (en) 1974-06-21
DE2258138A1 (en) 1974-05-30

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee