GB704058A - Improved power steering mechanism for road vehicles - Google Patents

Improved power steering mechanism for road vehicles

Info

Publication number
GB704058A
GB704058A GB28898/52A GB2889852A GB704058A GB 704058 A GB704058 A GB 704058A GB 28898/52 A GB28898/52 A GB 28898/52A GB 2889852 A GB2889852 A GB 2889852A GB 704058 A GB704058 A GB 704058A
Authority
GB
United Kingdom
Prior art keywords
pressure
shaft
ports
sleeve
port
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
GB28898/52A
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.)
Motors Liquidation Co
Original Assignee
Motors Liquidation 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 Motors Liquidation Co filed Critical Motors Liquidation Co
Publication of GB704058A publication Critical patent/GB704058A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B62D5/20—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle specially adapted for particular type of steering gear or particular application
    • B62D5/24—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle specially adapted for particular type of steering gear or particular application for worm type

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Power Steering Mechanism (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)

Abstract

704,058. Fluid-pressure servomotor-control systems GENERAL MOTORS CORPORATION. Nov. 17, 1952 [Nov. 30, 1951], No. 28898/52. Class 135 Power steering mechanism for road vehicles comprises a manuallyoperable steering shaft 11 operating a valve 30 controlling a servomotor 20, said valve in its neutral position having pressure ports 58, 58a connecting with pressure fluid inlet 50 and spill ports 59, 59a, connecting with exhaust outlets 51, 51a, the spill ports being larger than the pressure ports. The shaft has a threaded end 12 engaging a nut 13 and is capable of limited axial movement. The nut has rack teeth 140 engaging a quadrant 15 on a shaft 16 connected by arm 17 to the steerable wheels. Piston 21 of motor 20 drives a rack 19 also engaging quadrant 15. The valve comprises a sleeve 41 fixed between bearings 40 on shaft 11, and is slidable in a housing 31 provided with the inlet 50, motor ports 52, 52a and outlets 51, 51a. The sleeve is centred in the housing by two or more pairs of spring- pressed plungers 34, the space between each pair being open to the inlet port, whereby inlet pressure also centres the sleeve, and the force due to the pressure and the springs must be overcome before axial movement of the shaft occurs. When the sleeve moves, e.g. to the right, its central land 56 closes pressure port 58a and increases the opening of port 58 and increases and decreases the openings of ports 59a, 59 respectively. Thus, application of pressure fluid through ports 58, 52 to the motor is cushioned by leakage through the open port 59. Further movement of the sleeve to the right further decreases opening of port 59 until finally when it is closed full power is provided. Movement of piston 21 causes recentring of the sleeve by axially moving the nut and shaft. If the power fails, manual steering occurs by engagement of bearing washers 37 with walls 47 in the valve housing, which walls limit the axial movement of the shaft, and a ball check valve 60 opens to prevent a fluid lock.
GB28898/52A 1951-11-30 1952-11-17 Improved power steering mechanism for road vehicles Expired GB704058A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US704058XA 1951-11-30 1951-11-30

Publications (1)

Publication Number Publication Date
GB704058A true GB704058A (en) 1954-02-17

Family

ID=22095101

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28898/52A Expired GB704058A (en) 1951-11-30 1952-11-17 Improved power steering mechanism for road vehicles

Country Status (3)

Country Link
DE (1) DE927616C (en)
FR (1) FR1070611A (en)
GB (1) GB704058A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2401661A1 (en) * 1974-01-15 1975-07-17 Bosch Gmbh Robert HYDRAULIC BRAKE AMPLIFIER

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE949868C (en) * 1954-11-23 1956-09-27 Daimler Benz Ag Motor vehicle steering device in connection with a device for scanning and amplifying the steering force applied to the steering wheel
FR1153774A (en) * 1955-06-10 1958-03-21 Differential piston servo motor, in particular for motor vehicle steering gears
DE1014444B (en) * 1955-08-03 1957-08-22 Zahnradfabrik Friedrichshafen Steering device for motor vehicles with a hydraulically or pneumatically acting auxiliary power device
DE1041817B (en) * 1955-09-21 1958-10-23 Fulminawerk K G Franz Mueller Steering device for motor vehicles with power steering
US2865339A (en) * 1955-11-10 1958-12-23 Arthur E Bishop Variable ratio power steering apparatus
DE1062559B (en) * 1956-02-29 1959-07-30 Fulminawerk K G Franz Mueller Hydraulic power steering for motor vehicles
US2902104A (en) * 1956-03-01 1959-09-01 Gen Motors Corp Hydraulic power steering system with associated lateral acceleration control means
DE1057471B (en) * 1957-02-20 1959-05-14 Fulminawerk K G Franz Mueller Steering gear with hydraulic power steering for vehicles with divided steering shaft
DE1137963B (en) * 1958-10-03 1962-10-11 Arthur E Bishop Power steering for motor vehicles

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR647565A (en) * 1928-07-31 1928-11-26 Steering for automobiles
US2193898A (en) * 1935-12-09 1940-03-19 Vaco Products Inc Steering mechanism
US2321377A (en) * 1940-08-01 1943-06-08 Heil Co Hydraulic steering gear
BE449924A (en) * 1940-10-31
US2368135A (en) * 1941-09-15 1945-01-30 Hamill Hugh Steering apparatus
US2334918A (en) * 1942-06-05 1943-11-23 Heil Co Hydraulic steering gear
BE449926A (en) * 1943-01-12
US2410049A (en) * 1944-09-26 1946-10-29 Francis W Davis Power steering apparatus
GB662724A (en) * 1948-11-17 1951-12-12 Bendix Aviat Corp Improvements in power assisted steering mechanisms

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2401661A1 (en) * 1974-01-15 1975-07-17 Bosch Gmbh Robert HYDRAULIC BRAKE AMPLIFIER

Also Published As

Publication number Publication date
DE927616C (en) 1955-05-12
FR1070611A (en) 1954-08-03

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