Power steering valves

Details Power steering valves Power steering valves

1992-05-07

1993-10-12

Michalsky, Gerald A.

Fluid handling

Systems

Multi-way valve unit

91375A, 13762524, B62D 5083

Patent

active

052516695

ABSTRACT:
A hydraulic power steering rotary valve of generally conventional construction characterized in that the on-center characteristics of the valve are governed by an arrangement of rolling elements and notched elements arranged to produce a detent action between the input shaft and the sleeve or driven member, the rolling elements rolling between opposite surface contours of a pair of opposed notched elements, the contours each including a convex surface the shape of which is such that a centering torque between the input shaft and the sleeve or driven member is produced which decreases for increasing amounts of rotation away from a neutral condition of the rotary valve.

REFERENCES:
patent: 4819545 (1989-04-01), Dymond
Sae Technical Paper Series 880706, "Analysis of Stiffness and Feel for a Power-Assisted Rack and Pinion Steering Gear", by John Baxter, A. E. Bishop and Associates, Feb. 29, Mar. 4, 1988.

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