Power steering valve system

Details Power steering valve system Power steering valve system

1978-04-06

1980-04-01

Pekar, John A.

Motor vehicles

Surface effect vehicles

Dynamic seal or fluid curtain

91375A, 91381, B62D 508

Patent

active

041957067

ABSTRACT:
A power steering valve system includes an input shaft and an output shaft which are aligned on a common axis, and also includes a control valve mechanism which is located offset from the axis in order to reduce the overall length of the valve system. The control valve mechanism includes a spool valve, a displacement of which from its neutral position controls the flow of a hydraulic oil from an oil pump to or from a power cylinder to assist in directing the steerable road wheels in a given direction. The input and output shafts are operatively associated with a motion translating mechanism which translates the magnitude of a relative torsion between the two shafts into a linear displacement. The motion translating mechanism is operatively associated with the spool valve to displace it from the neutral position in accordance with the magnitude of relative torsion between the two shafts.

REFERENCES:
patent: 2931239 (1960-04-01), Dietrich
patent: 2964017 (1960-12-01), Hruska
patent: 3791475 (1974-02-01), Cadiou

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