Adjustable shock absorber, especially for motor vehicles

摘要

Adjustable shock absorbers are provided with a cylinder containing a damping fluid, especially a damping liquid, a piston rod sealed and plunging into this and arranged so that it is axially displaceable, and a damping piston which divides the cylinder chamber into two working chamber halves (A1, A2) and contains fluid through-ducts generating damping force and a throttle valve body (150), which can be acted upon by fluid pressure on both sides, allowing the ducts to be covered leaving a variable passage, and an actuating chamber (140) lying facing it, which is to be connected by way of a control valve (S), actuatable both by fluid pressure and electromagnetically, to both working chamber halves (A1, A2). In order to manage with a single throttle valve body (150), one actuating chamber (140) and one control valve (S) and one solenoid winding (122) for both directions of movement of the damping piston, the throttle body (150) on its actuating side lying opposite the actuating chamber (140) is connected to two actuating surfaces (F3 and F2) of approximately equal size and constantly connected to the working chamber halves (A1, A2), the actuating chamber (140), by way of the control valve (S) which is adjustable as a function of the differential pressure, in each case ... to a greater extent with the working chamber half containing the lower fluid pressure than with the other working chamber half which contains the higher pressure ... Original abstract incomplete. <IMAGE>