Abstract: A vibration damper with a hydraulic end stop includes a cylinder in which a sleeve of plastic is axially fixed as part of the end stop. The sleeve has a circumferential collar on the outer side, via which collar the sleeve is axially supported at the cylinder side. The sleeve is supported via the circumferential collar directly on a carrying ring which has an L-shaped cross section and is axially clamped between an end face at the end of the cylinder and a piston rod guide of the vibration damper.

Abstract: A vibration damper with a hydraulic end stop includes a cylinder in which a sleeve of plastic is axially fixed as part of the end stop. The sleeve has a circumferential collar on the outer side, via which collar the sleeve is axially supported at the cylinder side. The sleeve is supported via the circumferential collar directly on a carrying ring which has an L-shaped cross section and is axially clamped between an end face at the end of the cylinder and a piston rod guide of the vibration damper.

Abstract: A piston-cylinder unit having a cylinder with an add-on part which has a fastening portion that contacts a contact surface of the cylinder. A positive engagement connection fixing the add-on part to the cylinder is provided between the add-on part and the cylinder. The positive engagement connection is formed by a deformable rivet that extends through the fastening portion in a final assembly position and forms an undercut with the cylinder.

Abstract: A cylinder (1), particularly for a vibration damper, includes a base (3) and a sleeve-shaped add-on part (5) which at least partially surrounds the cylinder (1) and which has at an end of the cylinder a radially inwardly directed edge profile. The edge profile (11) contacts an end face of the cylinder (1) in a noncontacting manner with respect to the base.

Abstract: Vibration damper with an end stop operated through a damping medium, includes a cylinder in which a piston rod is guided so as to be axially movable, wherein the piston rod controls a choke ring which limits a compression space starting from a defined stroke position of the piston rod at a cylinder-side wall having reduced diameter, wherein the cylinder has at least one working chamber which is filled with the damping medium and which is connected to the compression space via at least one choke orifice, wherein the choke ring has at least one pressure compensation channel via which a surface of the choke ring facing in direction of the wall on the cylinder side is connected to compression space with respect to the cross section of the choke ring, and the outflow from the pressure compensation channel to the working chamber can be closed in a stroke-dependent manner.

Abstract: A vibration damper includes a cylinder to which a clamp-shaped attachment part is fastened, wherein the attachment part has a tubular body which contacts an outer lateral surface of the cylinder and has at both ends thereof radial tabs which are spaced apart in circumferential direction and by which a pre-loading in circumferential direction is introduced in the tubular body by clamping devices, wherein the tubular body has an elongation portion oriented in circumferential direction of the lateral surface of the cylinder.

Abstract: A cylinder unit includes a cylinder which is closed at one end by a base, wherein an adhesive joint is formed between the cylinder and the base, characterized in that the adhesive joining of the base is carried out in an annular space filled with adhesive, wherein the cylinder or the base is wetted with adhesive in the annular space at an inner wall and at an outer wall so that there are two gluing surfaces separated by the wall.

Abstract: A vibration damper includes a cylinder to which a clamp-shaped attachment part is fastened, wherein the attachment part has a tubular body which contacts an outer lateral surface of the cylinder and has at both ends thereof radial tabs which are spaced apart in circumferential direction and by which a pre-loading in circumferential direction is introduced in the tubular body by clamping devices, wherein the tubular body has an elongation portion oriented in circumferential direction of the lateral surface of the cylinder.

Abstract: A vibration damper (1) has a sensor device (27), including a cylinder (3) which is filled with damping medium and in which a piston rod (5) is guided so as to be axially movable, wherein the vibration damper has a compensation chamber (13) which receives at least the damping medium volume displaced by the piston rod, wherein the sensor device has a first sensor component (29) which is stationary with respect to the cylinder and has a component (17) which carries out a movement synchronous with the piston rod, wherein a floating body (17) floats on a damping medium surface (19), and the floating body constitutes the sensor component that carries out a movement synchronous with the piston rod.

Abstract: A vibration damper with variable damping force, includes a cylinder filled with damping medium and in which a piston fastened to a piston rod axially moveably therein. The piston divides the working cylinder into two working spaces. The damping force for the directions of rebound and compression are influenced by nonreturn valves acting in the respective directions. A damping valve of variable damping action is additionally provided in series with each of the nonreturn valves so that the damping valve is active in both the rebound and compression directions.

Abstract: A vibration damper with variable damping force, includes a cylinder filled with damping medium and in which a piston fastened to a piston rod axially moveably therein. The piston divides the working cylinder into two working spaces. The damping force for the directions of rebound and compression are influenced by nonretum valves acting in the respective directions. A damping valve of variable damping action is additionally provided in series with each of the nonreturn valves so that the damping valve is active in both the rebound and compression directions.