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GB1484942A - Power assisted rack-and-pinion steering mechanism - Google Patents

Power assisted rack-and-pinion steering mechanism

Info

Publication number
GB1484942A
GB1484942A GB3420474A GB3420474A GB1484942A GB 1484942 A GB1484942 A GB 1484942A GB 3420474 A GB3420474 A GB 3420474A GB 3420474 A GB3420474 A GB 3420474A GB 1484942 A GB1484942 A GB 1484942A
Authority
GB
United Kingdom
Prior art keywords
port
piston
ports
steering
pinion
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
GB3420474A
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.)
Adwest Engineering Ltd
Original Assignee
Adwest Engineering Ltd
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 Adwest Engineering Ltd filed Critical Adwest Engineering Ltd
Priority to GB3420474A priority Critical patent/GB1484942A/en
Publication of GB1484942A publication Critical patent/GB1484942A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D5/00Power-assisted or power-driven steering
    • B62D5/06Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/20Power-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
    • B62D5/22Power-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 rack-and-pinion type
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D5/00Power-assisted or power-driven steering
    • B62D5/06Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/061Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle provided with effort, steering lock, or end-of-stroke limiters

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Power Steering Mechanism (AREA)

Abstract

1484942 Power steering devices ADWEST ENG Ltd 3 Nov 1975 [2 Aug 1974] 34204/74 Heading B7H Power assisted rack and pinion steering gear includes means for reducing the power assistance at the end of the steering stroke. A piston 5 within cylinder 6 is mounted on rod 4 integral with a rack (1) (Fig. 1A, not shown) meshing with a pinion (3). A control valve connected to the pinion and steering control member directs fluid flow to either side of the piston 5 through port 11 or 12, the other port being connected to exhaust. Axially spaced from each port 12, 11 is a respect relief port 13, 15, port 12 connecting port 13 through passage 14 and port 11 connecting port 15 through annular passage 16. When piston 5 approaches its end stroke position it comes between ports 13 and 12 or between ports 15 and 11 so that fluid at the high pressure side of the piston may be exhausted. The piston is returned by the return action of the steerable wheels and the steering linkage. Pressure fluid supplied to return the piston is supplied to both sides of the piston since the relief ports are in communication with the supply ports, however, the relief ports, or passages thereto are restricted relative to the supply ports thus affording some assistance to the return action.
GB3420474A 1975-11-03 1975-11-03 Power assisted rack-and-pinion steering mechanism Expired GB1484942A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3420474A GB1484942A (en) 1975-11-03 1975-11-03 Power assisted rack-and-pinion steering mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3420474A GB1484942A (en) 1975-11-03 1975-11-03 Power assisted rack-and-pinion steering mechanism

Publications (1)

Publication Number Publication Date
GB1484942A true GB1484942A (en) 1977-09-08

Family

ID=10362699

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3420474A Expired GB1484942A (en) 1975-11-03 1975-11-03 Power assisted rack-and-pinion steering mechanism

Country Status (1)

Country Link
GB (1) GB1484942A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007045397A1 (en) * 2005-10-19 2007-04-26 Eaton Fluid Power Gmbh Servo drive for power assisted steering

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007045397A1 (en) * 2005-10-19 2007-04-26 Eaton Fluid Power Gmbh Servo drive for power assisted steering

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Legal Events

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