Servo valve for an auxiliary power steering system of a vehicle comprises a centering unit containing centering elements having slanted surfaces with a rising angle which changes in the tangential direction

摘要

Servo valve (1) comprises a centering unit (6) containing centering elements (7, 8) having slanted surfaces with a rising angle which changes in the tangential direction so that the retroacting torque of the centering unit is reduced. Preferred Features: The rising angle is reduced from a centered neutral position of the centering elements in the tangential direction of the slanted surfaces.