GB1373902A - Hydraulic system for a vehicle having a steering system and air conditioning unit - Google Patents

Hydraulic system for a vehicle having a steering system and air conditioning unit

Info

Publication number
GB1373902A
GB1373902A GB409573A GB409573A GB1373902A GB 1373902 A GB1373902 A GB 1373902A GB 409573 A GB409573 A GB 409573A GB 409573 A GB409573 A GB 409573A GB 1373902 A GB1373902 A GB 1373902A
Authority
GB
United Kingdom
Prior art keywords
valve
motor
supplies
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
GB409573A
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB1373902A publication Critical patent/GB1373902A/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
    • F16H61/4078—Fluid exchange between hydrostatic circuits and external sources or consumers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H1/3204—Cooling devices using compression
    • B60H1/3222—Cooling devices using compression characterised by the compressor driving arrangements, e.g. clutches, transmissions or multiple drives
    • 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
    • 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
    • F16H61/4035—Control of circuit flow

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Power Steering Mechanism (AREA)
  • Motor Power Transmission Devices (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

1373902 Hydraulic power steering etc. ROBERT BOSCH GmbH 26 Jan 1973 [25 Feb 1972] 4095/73 Heading B7H An hydraulic system for actuating a power steering unit and an air conditioning unit of a vehicle includes at least one engine driven pump which supplies pressure fluid to the power steering cylinder 10 and to a hydrostatic motor 19 which operates the compressor (not shown); of the air conditioning unit. In a first embodiment (Fig. 1) a pump 1 driven by engine 2 has two outlet ports 3, 4. Port 3 supplies the power steering cylinder 10 via line 6 and three-way steering valve 7 and port 4 supplies the motor 19 which drives the air conditioning compressor. Pressure relief valves 13, 20, valve 7 and motor 19 are all connected to a common return line 14. The pump 1 is of the variable type and the output at port 4 is controlled by control element 5 which is actuated by flow regulating valve 24 so that the motor 19 operates at constant rotational speed. Motor 19 can be stopped by opening a by-pass valve 23. In a second embodiment (Fig. 2), a single variable pump 28 supplies pressure fluid to a three-way steering valve 30. In the neutral steering position II as shown valve 30 supplies fluid to motor 19. In the operative steering positions I and III valve 30 supplies fluid to cylinder 10, and a flow regulating valve 38 and by-pass line 39 supplies the motor 19. Again a flow regulating valve 34 actuates pump control elements 37 so that motor 19 operates at a constant rotational speed. In a third embodiment (not shown), the output of the pump 28 is controlled by a control valve connected to the three-way valve. The control valve has a slide which is biased on one side by the delivery pressure of the pump and on the other side by a spring and a pressure which is lower than the delivery pressure by the amount of pressure drop across at least one throttle disposed in the three-way valve. In other embodiments (not shown), two variable pumps are provided. The steering cylinder 10 and motor 19 may be supplied by separate pumps or may be supplied together by the combined output of the two pumps. Again flow regulating arrangements are provided to vary the outputs of one and/or both pumps so that motor 19 operates at constant rotational speed and so that cylinder 10 has an adequate supply of pressure fluid when required.
GB409573A 1972-02-25 1973-01-26 Hydraulic system for a vehicle having a steering system and air conditioning unit Expired GB1373902A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2208842A DE2208842C2 (en) 1972-02-25 1972-02-25 Drive of a steering device and several accessories for vehicles by a hydrostatic transmission

Publications (1)

Publication Number Publication Date
GB1373902A true GB1373902A (en) 1974-11-13

Family

ID=5837008

Family Applications (1)

Application Number Title Priority Date Filing Date
GB409573A Expired GB1373902A (en) 1972-02-25 1973-01-26 Hydraulic system for a vehicle having a steering system and air conditioning unit

Country Status (4)

Country Link
JP (1) JPS5817052B2 (en)
DE (1) DE2208842C2 (en)
FR (1) FR2173596A5 (en)
GB (1) GB1373902A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4223646A (en) * 1978-02-16 1980-09-23 Trw Inc. Hydraulic fan drive system
US5127227A (en) * 1988-05-16 1992-07-07 Kabushiki Kaisha Komatsu Seisakusho Hydraulic circuit apparatus for construction vehicles
WO2001073300A3 (en) * 2000-03-28 2002-03-07 Hydraulic Controls Inc Speed regulated oil delivery system

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1519063A (en) * 1974-11-06 1978-07-26 Trw Inc Vehicle steering system
US3931711A (en) * 1974-11-06 1976-01-13 Trw Inc. Controller assembly
FR2315666A1 (en) * 1975-06-27 1977-01-21 Ppm Sa HEATING DEVICE USING THE HEAT RESULTING FROM THE ROLLING OF A PRESSURIZED FLUID
US3996742A (en) * 1976-03-04 1976-12-14 Trw Inc. Fluid flow control apparatus
DE2965671D1 (en) * 1978-12-06 1983-07-21 Eaton Corp Motor-valve apparatus for hydraulic fan drive system
JPS5698589A (en) * 1980-01-07 1981-08-08 Toyooki Kogyo Co Ltd Driving device of driven body for automobile
FR2493241A1 (en) * 1980-11-04 1982-05-07 Valeo EQUIPMENT DEVICE DRIVEN BY THE ENGINE OF A MOTOR VEHICLE
DE3132342A1 (en) * 1981-08-17 1983-03-03 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen "HYDROSTATIC AUXILIARY STEERING DEVICE"
JPS58135551U (en) * 1982-03-09 1983-09-12 株式会社クボタ Tractor drive structure
JPS58142183U (en) * 1982-03-20 1983-09-24 株式会社丸山製作所 Power steering device for speed sprayer
DE3304979A1 (en) * 1983-02-12 1984-08-16 Robert Bosch Gmbh, 7000 Stuttgart Hydraulic servo brake device for vehicles, especially motor vehicles
DE3911531A1 (en) * 1989-04-08 1990-07-26 Daimler Benz Ag Hydraulic system for motor vehicles
JPH04173433A (en) * 1990-11-06 1992-06-22 Toyota Autom Loom Works Ltd Hydraulic system for vehicle
DE4102882C2 (en) * 1991-01-31 1995-07-20 Man Nutzfahrzeuge Ag Drive device of a vehicle
DE4224863A1 (en) * 1992-07-28 1994-02-03 Bayerische Motoren Werke Ag Delivery system for air conditioning refrigerant circuit of motor vehicle - uses central hydraulic system with diaphragm motor or piston motor working in straight line with reciprocating movement acted on by central hydraulic system
DE4316339A1 (en) * 1993-05-15 1994-11-17 Teves Gmbh Alfred Pressure-medium supply device
DE9318051U1 (en) * 1993-11-25 1994-02-10 Joachim Leistikow GmbH, 61138 Niederdorfelden High-pressure dishwasher
DE19530837A1 (en) * 1995-08-22 1997-02-27 Brueninghaus Hydromatik Gmbh Hydrostatic drive for auxiliary units of a vehicle

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2880586A (en) * 1955-10-25 1959-04-07 Gen Motors Corp Fluid system with priority valve
US2850879A (en) * 1956-06-29 1958-09-09 Thompson Prod Inc Multiple accessory control valve
US3101594A (en) * 1957-05-16 1963-08-27 Fawick Corp Hydraulic system incorporating flow divider valves
GB1006465A (en) * 1962-05-03 1965-10-06 Jarmuefejlesztesi Intezet Hydraulic transmission for driving vehicle auxiliaries
DE1505655A1 (en) * 1966-10-25 1970-08-06 Bbc Brown Boveri & Cie Vehicle air conditioner with hydraulic drive

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4223646A (en) * 1978-02-16 1980-09-23 Trw Inc. Hydraulic fan drive system
US5127227A (en) * 1988-05-16 1992-07-07 Kabushiki Kaisha Komatsu Seisakusho Hydraulic circuit apparatus for construction vehicles
AU630353B2 (en) * 1988-05-16 1992-10-29 Kabushiki Kaisha Komatsu Seisakusho Hydraulic circuit device of construction vehicle
WO2001073300A3 (en) * 2000-03-28 2002-03-07 Hydraulic Controls Inc Speed regulated oil delivery system

Also Published As

Publication number Publication date
JPS5817052B2 (en) 1983-04-04
JPS4898538A (en) 1973-12-14
DE2208842C2 (en) 1983-09-01
DE2208842A1 (en) 1973-08-30
FR2173596A5 (en) 1973-10-05

Similar Documents

Publication Publication Date Title
GB1373902A (en) Hydraulic system for a vehicle having a steering system and air conditioning unit
US2674092A (en) Power transmission
US3723025A (en) Variable bypass for fluid power transfer systems
GB1521732A (en) Hydraulic power systems
GB1417606A (en) Fluid controlling apparatus
AU594715B2 (en) Vehicle speed response power steering device
GB1522027A (en) Control system for a variable displacement pump
US3865514A (en) Power transmission
GB1464781A (en) Fluid-flow valve arrangement
GB1398782A (en) Hydraulic system
US2618932A (en) Pump and motor hydraulic system, including multiple pumps
GB1461054A (en) Dual source hydraulic steering system
GB1313876A (en) Pressure controlled directional systems for fluid motors
GB1493406A (en) Single pump hydrostatic transmission control and supply system
US4907408A (en) Variable displacement hydraulic servomotor system
GB1459533A (en) Pressurised fluid supply apparatus
GB1396926A (en) Control device for load-independent regulation of hydraulic consumers
GB1263118A (en) A hydraulic control system
GB1508634A (en) System for providing auxiliary power
GB1118443A (en) Improvements in or relating to hydrostatic transmissions
GB1408814A (en) Control system for a hydrostartic transmission
GB1288129A (en)
GB1214511A (en) Self-changing four-speed hydrostatic trnsmissions
US2970641A (en) Apparatus for pumping fuel at varying rates
GB1361861A (en) Power controlled hydraulic drive systems

Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee