Patent ID: 6536328
Filing Date: 2003-03-25
Classification: B62D,F16F,Y10T

Abstract:
A damper valve located between a control valve and a power steering motor in a hydraulic power-assisted steering system, the damper valve comprising:a housing having axially opposite first and second end portions and an intermediate portion interposed between the first and second end portions; the first end portion of the housing being for fluid communication with the control valve and the second end portion of the housing being for fluid communication with the power steering motor; a flow restricting element located within the housing and being movable through portions of the housing including the intermediate portion by fluid flow through the housing; and a biasing element for restraining movement of the flow restricting element toward the first end portion of the housing; an orifice being formed between the flow restricting element and the housing for restricting fluid flow greater than a predetermined amount through the housing from the second end portion toward the first end portion.