Power assisted steering arrangements and devices for use...

Details Power assisted steering arrangements and devices for use... Power assisted steering arrangements and devices for use...

B - Operations, Transporting

62

D

180/55

B62D 5/08 (2006.01) B62D 5/10 (2006.01)

Patent

CA 1139675

-17- ABSTRACT The invention provides a control valve for an air operated power assisted steering mechanism for a vehicle. The valve has a spiral scroll and nut connection. One of these elements is connected to the steering wheel and is rotated thereby as the steering wheel is turned in a steering motion and the resulting linear motion of one of the elements is transferred into relative movement of a ported sleeve and two valve spools respectively for controlling the two directions of power assistance of the steering of the vehicle. The valve preferably is located in a hub of the steering wheel, in the steering column, or drivingly connected to the steering column by means of a transmission.

354724

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