Variable assist power steering gear with hydraulic reaction cont

Details Variable assist power steering gear with hydraulic reaction cont Variable assist power steering gear with hydraulic reaction cont

1993-03-18

1994-03-29

Focarino, Margaret A.

Motor vehicles

Including one or more ski-like or runner members

With at least one surface-engaging propulsion element

B62D 506

Patent

active

052976475

ABSTRACT:
The invention comprises a steering gear for an automotive vehicle having a rotary valve mechanism that controls pressure distribution to a fluid motor that establishes a power assist during steering maneuvers, pressure reaction pistons being provided to establish a resistance to relative movement of the rotary valve elements, and a modulator valve in the steering system for establishing a variable pressure on the reaction pistons wherein provision is made for changing the pressure modulating characteristics of the modulator valve depending upon vehicle speed.

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patent: 5016723 (1991-05-01), Sano
patent: 5147009 (1992-08-01), Chikuma et al.

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