Rotary valve for power steering

Details Rotary valve for power steering Rotary valve for power steering

B - Operations, Transporting

62

D

B62D 5/083 (2006.01) B62D 6/02 (2006.01)

Patent

CA 2100669

A hydraulic power steering rotary valve of generally conventional construction characterized in that the on-centre charac- teristics of the valve are governed by an arrangement of rolling elements (22) and notched elements (10, 20) arranged to produce a detent action between the input shaft (1) and the sleeve or driven member (2), the rolling elements (22) rolling between opposite surface contours of a pair of opposed notched elements (10, 20), the contours each including a convex surface the shape of which is such that a centering torque between the input shaft (1) and the sleeve or driven member (2) is produced which decreases for increasing amounts of rotation away from a neutral condition of the rotary valve.

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