Patent ID: 8393445
Filing Date: 2013-03-12
Classification: F16F,Y10T

Abstract:
1. A valve intended to adjust the pressure of a damping medium flow between the damping chambers of a shock absorber, which flow is regulated by the force equilibrium of one or more valve parts that are axially movable in a valve housing, the force equilibrium being partially or mainly created by a damping medium pressure which is dependent on the damping medium flow and acts upon the movable valve part counter to the action of a spring arrangement comprising a stiff spring and a weak spring, characterized in that the weak spring has the form of a thin, circular disc having a first spring surface and a second spring surface, and an inner spring part and an outer spring part substantially separated from each other with cavities, yet at two points, at least, the inner spring part and the outer spring part are connected with legs, so that the outer spring part and the inner spring part can deflect in relation to each other, and when the valve part moves by no more than a path length, the force equilibrium of the valve part is adjusted counter to the action of said deflection motion between the outer spring part and the inner spring part and, in the event of shifts beyond this path length, the force equilibrium is adjusted counter to the action of the stiff spring.