| 摘要 |
A controllable vibration damper for motor vehicles, having a cylinder containing damping fluid, a piston rod entering the cylinder in a sealed manner and arranged axially displaceably therein, and a damping piston which is fastened to the piston rod and divides the cylinder into two working spaces, as well as a damping valve, which is provided with a valve seat and controls the effective cross section of a damping passage of the main stage via an axially displaceable valve body, the valve body being acted on in one direction by a precontrolling device and activated directly in the opposite direction.
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