Zf Friedrichshafen Ag

Guido Holtmann

Jörg Rösseler

Steffen Heyn

Aleksandar Knezevic

Heinz Sydekum

Anton Krawczyk

Achim Eich

Volker-Oliver Hupperich

Uwe Herrmann

Rudolf Schulte

Jürgen Henrichs

Ingo Gelhausen

Aleksander Knezevic

A damping valve includes a damping valve body with an annular groove which has a base and which is limited by an inner valve seat surface and an outer valve seat surface for at least one valve disk. The base of the annular groove has a maximum distance from the valve seat surface along a circumferential area and has a minimum axial distance from the valve seat surface in another circumferential area.

Damping valve for a vibration damper

Damping valve having a damping valve body with at least one passage channel between two cover sides. An outlet opening of the passage channel leads into a cover-side annular channel which is limited by an outer annular valve support surface and by an inner annular valve support surface, the at least one annular valve support surface for at least one valve disk has a substantially constant width along the circumference, and the annular channel has a varying width along the circumference, and at least one valve support surface has a varying radius of curvature along the circumference.

A vibration damper includes a cylinder in which a piston fastened to a piston rod executes a translational and a rotational movement relative to the cylinder. The piston is fixed to the piston rod by an axial fastener, and a device for preventing rotation by positive engagement is formed between the piston and the piston rod.

Vibration damper

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Windeck, Germany

Guido Holtmann