Fichtel & Sachs Ag

Peter Prozeller

Gunther Handke

Ernst Prozeller

Peter Ullmer

In a double-tube oscillation damper a pressure relief valve is provided adjacent a piston rod guiding and sealing device between a leakage gas collecting chamber and an annular space confined between the cylinder and a container surrounding the cylinder. This pressure relief valve comprises an elastic annular membrane which is supported in radial and axial direction by a support ring. This support ring has a sleeve portion providing a circumferential, substantially radially directed support face for the elastic annular membrane and an annular bottom disc for fastening the support ring with respect to the piston rod guiding and sealing device. A radially outwardly directed lip is provided in the transition area between the sleeve and the bottom disc. This lip is integral with the sleeve and the bottom disc.

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Schweinfurt, Germany

Peter Prozeller