Patent ID: 6393962
Filing Date: 2002-05-28
Classification: B62D,Y10T

Abstract:
A power steering apparatus comprising:a control valve for switching and connecting a pump side supply flow passage and a tank side return flow passage to a first chamber and a second chamber of a power cylinder in accordance with a steering operation, a damper valve interposed between each of the first chamber and the second chamber of the power cylinder and the control valve, the damper valve having a housing, a partition member for partitioning an inner portion of the housing into a power cylinder side and a control valve side, a first valve apparatus disposed in the partition member and being arranged and constructed to allow only a supply direction flow from the control valve side to the power cylinder side, and a second valve apparatus disposed in the partition member which applies a damping force to a return direction flow from the power cylinder side to the control valve side, wherein the damper valve has a cap attached to the housing which holds the partition member between the cap and the housing, said partition member has a protruding portion pressed by the cap or the housing.