Zf Friedrichshafen Ag

Zf Sachs Ag

Volker-Oliver Hupperich

Jörg Rösseler

Heinz Sydekum

Guido Holtmann

Anton Krawczyk

John Collis

Uwe Herrmann

Rudolf Schulte

Ingo Gelhausen

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

Piston-cylinder assembly, comprising a container tube, in which a piston rod is guided with freedom of axial movement, which rod is at least partially covered by a sheath tube with at least one elastic fold, where a resilient stop pad is provided concentrically to the piston rod, the end of which pad comes to rest against an end cap during the inward travel of the piston rod, which end cap rests against the container tube in the fully assembled piston rod assembly. The stop pad, the sheath tube, and the end cap form a preassembled unit which is independent of the piston rod assembly, the end cap being pressed onto the container tube by the resilient stop pad during the inward travel of the piston rod into the container tube.

Piston-cylinder assembly with a bellows

Growing community of inventors

Sankt Augustin, Germany

Volker-Oliver Hupperich