Power assisted steering system for vehicles

摘要

A power assisted steering system for vehicles comprises a control valve for controlling the actuation of a hydraulic servomotor operatively connected to a steering link mechanism, a valve body connected for rotation with a pinion engaged with a rack which is operatively connected to the steering link mechanism, valve members operable within the valve body and connected to a steering shaft and a torsion bar connected to the valve body and the steering shaft at opposite ends thereof. The valve body and the pinion are formed as separate elements while the torsion bar and the pinion are formed integral with each other in one piece.