Abstract: Suspension strut unit comprising a connector bearing for a piston rod of the suspension strut unit, where a spring plate for a vehicle spring has a bearing with a connector bearing-side bearing part and a spring plate-side bearing part, which bearing allows relative rotational movement between the vehicle spring and the connector bearing of the piston rod, where, after the piston rod has traveled inward a certain distance, a stop buffer rests against a cylinder; where a second bearing allows relative movement between the connector bearing and the cylinder after the stop buffer has become active; and where the second bearing allows the stop buffer to move relative to the spring plate at an angle to the longitudinal axis of the suspension strut unit.

Abstract: Each clutch disk has a hub area designed to be connected nonrotatably to a power takeoff element and a friction surface area designed to be clamped between opposing friction surfaces. Each clutch disk has a torsional vibration damper arrangement including two cover disk elements connected to the hub area for rotation in common, and a central disk element connected to the friction surface area for rotation in common. The central disk element is or can be brought into torque-transmitting connection with the cover disk elements via a damper element arrangement. The central disk element has a damper element interaction area and, radially outside the damper element interaction area, a friction surface carrier area, which is offset with respect to the damper element interaction area in the direction of an axis of rotation.

Abstract: Suspension strut unit comprising a cylinder, with respect to which the axial position of a spring collar can be adjusted, where the spring collar has a sleeve section which is received in a chamber provided on the outside of the cylinder. The chamber is at least partially filled with a curable material, and the sleeve section is in contact with the curable material, which, in the solid state, transmits a supporting force from the cylinder to the spring collar. The chamber has at least one isolating sleeve with a radial guide surface, by which the sleeve is in contact with the sleeve section of the spring collar.

Abstract: An actuating device, in particular for a vehicle clutch, comprising a cylinder, in which a piston executes, as a function of a supply of pressure medium, a working movement having a maximum working travel which is defined by a stop fixed in relation to the cylinder, a damping device being arranged between the stop and a working-travel limiting surface of the piston.

Abstract: Vibration damper comprising a piston rod, which is guided with freedom of axial movement in a damping medium-filled cylinder and which carries a piston, which divides the cylinder into two working spaces. At least one of the two working spaces has a flow connection leading to a housing, in which a separating element separates at least one chamber from one of the two working spaces, where the volume of the minimum of one chamber in the housing has a size which is variable within defined limits. The separating element executes relative motion with respect to the housing, and is located in a permanent position with respect to the piston rod, whereas the housing is movable with respect to the piston rod.

Abstract: At least one first friction member is connected with a fluid-filled housing to rotate jointly therewith, and at least one second friction member connected with a driven member so as to rotate jointly therewith. The friction members can be pressed against one another when at least one pressing member is acted upon by fluid. A pressure storage arrangement associated with the at least one pressing member can be brought into a pressure storage state when the at least one pressing member is acted upon by pressure fluid and acts upon the pressing member with the stored pressure.

Abstract: Spring strut unit, comprising a cylinder, with respect to which a spring plate can be shifted axially for the purpose of adjusting the position of the cylinder. The spring plate has a sleeve section, which establishes the connection to the cylinder, where, on the cylinder side of the unit, a chamber is provided, which is at least partially filled with initially formable material, where the sleeve section is in contact with the initially formable material, which, when in the solidified state, transmits supporting forces from the cylinder to the spring plate. In the path of force transmission from the spring plate to the cylinder, a rotation-proof connection is provided, which determines the position of the spring plate with respect to the cylinder.

Abstract: A force-exerting element for a friction clutch includes a ring-like body with an outer edge area and an inner edge area. Openings provided in the body include a first group of openings open toward the outer edge area and a second group of openings open toward the inner edge area. The radial extent of circumferentially adjacent openings of the first group of opening and of the second group of openings overlap each other in the radial direction at the ends facing way from their associated edge areas or extend along approximately the same radial area. A radial support arrangement is arranged on the body to provide at least certain areas of support in the radial direction against the effects of centrifugal force.

Abstract: Suspension strut comprising a cylinder and a spring perch which is axially displaceable relative to the cylinder for adjustment of the position, wherein the spring perch has a sleeve portion by which the connection to the cylinder is carried out. A chamber is arranged on the cylinder side which is at least partly filled with a moldable material. The sleeve portion contacts the moldable material, which in a solid state transmits a supporting force from the cylinder to the spring perch.

Abstract: A piston ring includes a lateral surface which covers a circumferential surface of a piston and support segments with retaining surfaces which engage with the top and bottom of the piston. A piston ring joint allows the piston ring to be elastically deformed in the radial direction and is provided with a tongue at one end of the lateral surface, which tongue engages in an opening in the other end of the lateral surface. The tongue is designed with retaining segments which extend in the circumferential direction and continue as extensions of the support segments. The retaining segments engage supportively with the top and bottom of the piston. The opening is provided with carrier segments at least in certain areas of the circumference of the piston ring extensions of the support segments and holding the ends of the piston ring in place axially with respect to the piston-, the carrier segments being supported in the axial direction of the piston on the retaining segments.

Abstract: A pressure plate assembly for a friction clutch includes a housing connectable with an abutment arrangement for rotation therewith about an axis of rotation. The housing has an outer axial side and an inner axial side. A pressure plate is mounted in the housing so that it faces the inner axial side. The pressure plate is rotatable with the housing about the axis of rotation. The pressure plate includes actuating sections which extend past a radially outer edge of the housing. An energy storage element is mounted on the outer side of the housing such that the energy storage device exerts a force on the actuating sections for urging the pressure plate away from the inner axial side. An assembly pretensioning arrangement is operative for holding the energy storage element in a pretensioned assembly position in which the energy storage device does not exert a force on the housing.

Abstract: Vibration damper, including a damping element and a pneumatic spring, wherein the damping element has a container tube, which is connected to a roll-off piston of the pneumatic spring. The roll-off piston is connected via an air suspension bellows acting as a rolling diaphragm to an external guide mounted concentrically and with freedom of axial movement with respect to the roll-off piston, the air suspension bellows and the roll-over piston forming the boundaries of a space filled with pressurized gas. The container tube is prepared for the installation of the roll-off piston by a non-cutting procedure suitable for mass production, wherein a length of tubing having the diameter of the container tube is mounted on a mandrel and clamped at both ends so that its length cannot change, and a pair of flow-turning/rotary-swaging rolls is pressed against the tubing and advanced toward each other to form an area of squeezed material.

Abstract: A piston is guided with freedom of axial movement in a damping medium-filled pressure tube, the piston dividing the pressure tube into a working space on the piston rod side of the piston and a working space on the side away from the piston rod. The medium can flow in either direction through a fluid connection between the two working spaces of the pressure tube, in which connection an adjustable damping valve for the incoming flow is provided for when the piston rod is traveling inward. The outgoing flow side of the valve is connected at least to the working space on the piston rod side of the piston and a compensating space. The adjustable damping valve can be controlled by way of a sidestream inside the fluid connection between the working space on the side away from the piston rod and the working space on the piston rod side of the piston, the adjustable damping valve having a sidestream channel leading to the compensating space.

Abstract: Bearing for a piston rod of a piston-cylinder unit, including a bearing body mounting on the piston rod side and a counter-bearing of a component to be carried by the piston rod. The counter-bearing is designed as a bearing flange, the top and bottom side of which are fitted with respective bearing bodies in the form of slide bearings. The bearing body mounting supports the counter-bearing axially on both sides and the two bearing bodies are preloaded by a spring towards the bearing body mounting.

Abstract: A clutch disk for a friction clutch includes a friction lining carrier and at least one friction lining element, which is connected to the friction lining carrier for rotation in common with it, and which can shift in the circumferential direction relative to this carrier against the pretensioning effect of a restoring arrangement. The disk also includes a friction device, which generates a frictional force acting in opposition to the displacement of the friction lining element relative to the friction lining carrier.

Abstract: An oscillating motor includes a cylinder which is filled with hydraulic medium and which has at least one rib on its inside wall, whereby a motor shaft with at least one vane is supported inside the cylinder with freedom to oscillate, a sleeve concentric to the motor shaft, and a pressure-preloaded sealing arrangement inside each of at least two ring-shaped spaces between the cylinder and the motor shaft, which sealing arrangements seal the working chambers formed by the cylinder and its rib, the motor shaft, and the vane together with the cylinder covers at the ends. The ring-shaped spaces are connected to each other by a pressure equalization channel, and an axial groove, which forms the pressure equalization channel, is present in the contact area between the motor shaft and the sleeve.

Abstract: A hydraulic clutch has an impeller wheel, a turbine wheel with a turbine wheel shell, and a torsional vibration damper. The turbine wheel is drivable by the impeller wheel. The turbine wheel shell is mounted in an axial and radial sliding bearing so as to be rotatable with respect to a turbine wheel hub. The torsional vibration damper is arranged on the turbine wheel hub so as to be fixed with respect to rotation relative to it. The turbine wheel hub is drivable by the turbine wheel via the turbine wheel shell and the torsional vibration damper. The turbine wheel shell acts on the torsional vibration damper via a connection element. The axial sliding bearing is spatially offset with respect to the radial sliding bearing.

Abstract: A pressure plate assembly for a friction clutch, which assembly includes a housing; a pressure plate connected to the housing for rotation in common around an axis of rotation and which is free to move axially with respect to the housing; a stored-energy device, which pretensions the pressure plate in the axial direction with respect to the housing; a wear-compensating device which acts in the path of support between the stored-energy device and at least one of the housing and the pressure plate and comprises at least one wear-compensating element which is free to move when wear occurs and/or when wear is compensated; an indicator arrangement, comprising at least one indicator opening in the housing and at least one indicator element on a wear-compensating element.

Abstract: in particular for a motor vehicle, includes a high pressure chamber containing a gas cushion acting as a spring, and a working cylinder which is filled with damping medium under pressure of the gas cushion. A working piston carried by a hollow piston rod divides the working cylinder into two working spaces, wherein one of the working spaces is connected to the high pressure chamber to drive the piston under the pressure of the gas cushion, the piston having at least one non-return valve which permits flow from the one working space to the other working space.

Abstract: A torque transmission arrangement includes a torsional-vibration damper arrangement having a primary side for fixing to a drive member and a secondary side rotatable about an axis of rotation (A) with respect to the primary side counter to the action of a damper element arrangement. A double clutch arrangement is coupled to the secondary side of the torsional-vibration damper arrangement and has a first clutch region for selective torque transmission coupling to a first output member and a second clutch region for selective torque transmission coupling to a second output member. A selectively activatable rotary-state influencing arrangement can limit the rotational movement of the secondary side with respect to the primary side and/or to a subassembly essentially nonrotatable about the axis of rotation (A).