Fichtel & Sachs Ag

Mannesmann Sachs Ag

Sabine Lack

Gunther Braun

Manfred Grundei

Otto Samonil

A vibration damper, especially for a motor vehicle, with at least one tubular structural component part, an axially displaceable piston rod which is guided out of the tubular structural component part, a fastening element which is fixedly secured with the piston rod and which can be fastened with a wheel suspension or a body of a motor vehicle, and a protective tube which is arranged at the piston rod and encloses the tubular structural component part. The protective tube is connected with the piston rod in a positive engagement and/or in a frictional engagement in its region facing the fastening element.

Vibration damper, especially for motor vehicles

Knuckle eye, in particular for a vibration damper, comprising a plastic body which has a transverse opening for a fastening device, a connection opening for the connection to the unit to be supported, whereby the connection opening has a metal reinforcement sleeve to increase the strength of the connection. The reinforcement sleeve, by way of a portion which deviates from the uniformly round shape, forms a positive or interlocking connection with the plastic body, whereby a reinforcement band is inserted into the plastic body concentric to the transverse opening, which reinforcement band partly surrounds the reinforcement sleeve in the vicinity of the positive connection.

Vibration damper with a knuckle eye for a motor vehicle and a knuckle

A vibration damper includes a pressure tube in which a piston on a piston rod which can move axially is guided by means of a piston rod guide which closes the pressure tube. The piston divides the pressure tube which is filled with damping medium into two working chambers. A piston ring which covers a peripheral area of the piston has an essentially U-shaped cross section with retaining surfaces, whereby the retaining surfaces are supported on the upper and lower side of the piston. On at least one side of the piston, at least a portion of the piston on which the retaining surfaces of the piston ring are engaged has a profiled surface. The profiled surface is configured such that the distance between one side of the piston and a hypothetical reference plane which runs parallel to the piston side is alternately less than and greater than a specified size of fit.

Growing community of inventors

Schweinfurt, Germany

Sabine Lack