Power steering for motor vehicles

Details Power steering for motor vehicles Power steering for motor vehicles

1996-11-08

1998-12-08

Johnson, Brian L.

Motor vehicles

Steering gear

No mechanical connection between steering shaft and steering...

180405, 91363A, 91363R, 91367, B62D 504, B62D 509

Patent

active

058457364

ABSTRACT:
In a hydraulic power steering for motor vehicles having a steering control element, a position setting unit connected to the steering control element, a control motor connected to the position setting unit by way of a control circuit and a servo valve having control parts which are supported so as to be rotatable relative to each other but operatively interconnected by spring means retaining them in a central open position relative to each other, one of the control parts is operatively connected to the control motor and the other is connected to a steering gear mechanism associated with the steered wheels of the motor vehicle, and a hydraulic servomotor is associated with the vehicle wheel steering mechanism and hydraulically connected to the servo valve to receive hydraulic fluid therefrom depending on the relative rotary positions of the servo valve control parts.

REFERENCES:
patent: 4733878 (1988-03-01), Kanazawa et al.
patent: 5080186 (1992-01-01), Elser et al.
patent: 5135069 (1992-08-01), Hattori et al.
patent: 5156229 (1992-10-01), Yasui et al.
patent: 5159553 (1992-10-01), Karnopp et al.
patent: 5172785 (1992-12-01), Takahashi
patent: 5253729 (1993-10-01), Suzuki

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