Abstract: A flywheel device has at least two inertial masses which can rotate relative to one another against the action of elastic elements of a damping device, one of which inertial masses, namely the output-side inertial mass which is farther from a drive system, such as for example the crankshaft of an internal combustion engine, is guided both radially and axially by way of a bearing arrangement with respect to the input-side inertial mass. The bearing arrangement has at least one axial plain bearing and one radial plain bearing. Both plain bearings guide the output-side inertial mass with respect to the input-side inertial mass with a clearance, the size of which is determined so that when a wobbling motion is introduced from the crankshaft to the input-side inertial mass, the output-side inertial mass, under the effect of centrifugal forces, can perform a self-stabilization.

Abstract: A controlling mechanism, particularly for operating a gear-shift-lever shaft of a gearbox for motor vehicles, having controlling units for introducing a sensor-monitorable rotational or translational movement to the gear-shift-lever shaft. A first controlling unit is connected to a second controlling unit and the first controlling unit can in turn be brought into active connection with the gear-shift-lever shaft via at least one articulation.

Abstract: A friction clutch, wherein the pressure force is obtained from the interaction of two different types of spring. A plate spring, which is unable by itself to apply the pressure force for transmitting the torque, is used, and at least one additional spring, which produces a force effect in the same direction and the force of which is added to the force of the diaphragm spring, is also used.

Abstract: A shock absorber for a motor vehicle has a single-tube construction with an adjustable damping force. The shock absorber includes a cylinder tube and a piston rod guide inside which a piston rod with a piston is located so that the piston can move axially. The piston divides the cylinder tube into two work chambers. A container tube encloses the cylinder tube, at least in segments. Between the cylinder tube and the container tube at least one hydraulic connection, extending from one of the work chambers via an overflow orifice to a damping force adjustment valve located outside the container tube, is formed. A cylinder tube guide centers the cylinder tube with respect to the container tube. The damping force adjustment valve has two connection openings, one of which openings is separated from the other by a wall. The damping force adjustment valve is connected to the hydraulic connection, so that the container tube extends over the entire length of the hydraulic connection to the piston rod guide.

Abstract: A detachable plug-type connector, in particular for the connection of a pressure line to a hydraulic cylinder with a pin-shaped inner part, which pin-shaped inner part can be inserted in a boring of an outer part. Between the outer part and the inner part there is a seal. The seal sits in the boring of the outer part, and in front of the seal there is a securing element which limits the axial travel of the seal in the extraction direction.

Abstract: A multiple-disk friction clutch, especially for motor vehicles, with a hub which has an internal toothing and can be placed on a gear shaft so as to be rotationally fixed relative thereto. At least two clutch disks are connected with the hub so as to be rotationally fixed relative thereto and project radially beyond the hub. A stop which guides the hub axially relative to the clutch disks is provided between the clutch disks. The hub is formed of two parts and includes a hub body having an outer toothing and a hub ring which has the same outer toothing and sits on a radial shoulder of the hub body. The outer toothing of the hub ring is offset by one tooth relative to the toothing of the hub body to form the stop for the clutch disks. The hub body and the hub ring are connected with one another so as to be rotationally fixed relative to one another.

Abstract: Self-pumping hydropneumatic shock absorbing strut with internal level regulation, in particular for motor vehicles, with a work cylinder which is filled with oil, is under the pressure of at least one gas cushion which is located in at least one high pressure chamber and acts as a spring. The work cylinder is divided by a piston carried on a hollow piston rod into two work chambers, with a piston pump which is driven by the spring movements and transports oil from a low pressure chamber into the work chamber which is connected to the high pressure chamber. The pump cylinder of the piston pump is formed by the hollow piston rod. There are valves between the work chamber and the high pressure chamber for the decompression and compression damping, whereby as a valve, there is at least one valve plate, which interacts with a valve seat, which is located on the work cylinder.

Abstract: A friction clutch for a transmission of a motor vehicle has a clutch disc with corresponding friction linings, wherein the friction linings are configured such that a ratio of the outside diameter thereof to an inside diameter thereof is less than about 1.41 and preferably falls in the range of about 1.25 to about 1.38. Also contemplated is a method of using such a friction clutch.

Abstract: A vibration damper for a motor vehicle is taught, which vibration damper has a cylinder tube in which a piston rod which is centered by a piston rod guide can move axially. A container tube encloses the cylinder tube, and the container tube is made of a material which has a significantly higher coefficient of thermal expansion than the material of the cylinder tube. Aluminum is an example if the container tube material. A compensation device compensates for the length difference between the cylinder tube and the container tube at temperatures below and above the temperature at which the vibration damper is manufactured. The container tube is characterized by the fact that preferably at least two expansion beads are formed in the wall of the container tube. The expansion beads compensate for thermal changes in length of the container tube and hold the cylinder tube under a bias with respect to the container tube over the entire range of operating temperatures.

Abstract: A piston cylinder assembly which includes a work cylinder, a piston and a piston rod, which piston rod carries the piston and extends out of the work cylinder in a sealed manner, as well as a ring-shaped equalization chamber formed by two tubes is disclosed. The equalization chamber is divided by a separating piston into two partial chambers, the separating piston having two parts which are guided so that they can move in a sealed manner axially on the wall of the respective tube of the compensation chamber facing the respective part. The two parts of the separating piston are connected by a flexible portion allowing them to move radially with respect to one another and are sealed with respect to one another.

Abstract: To be able to verify the function of the actuator system of an automatic clutch or of an automatic transmission of a motor vehicle as a function of the current conditions, including while the motor vehicle is in motion is necessary, the invention teaches that a test circuit actuates the actuator system, starting from a first specified operating position of the clutch or of the transmission to a second specified operating position of the clutch or of the transmission, into an actuator test position in which the clutch or the transmission is still essentially in its first operating position. The test circuit, in the actuator test position, tests the functional capability as a function of data stored in a data memory, which stored data are compared to data measured in the actuator test position of a changing operating parameter.

Abstract: A friction clutch, in particular for motor vehicles, with a clutch housing which can be detachably connected to a centrifugal mass of an internal combustion engine, and a clutch disc, pressure plate and clutch mainspring located inside the clutch housing whereby the centrifugal mass and the clutch housing come into contact in the axial direction. A spring supplies the retaining force between the centrifugal mass and the clutch housing. The spring which applies the retaining force is advantageously a plate spring. As a result of this configuration, the clutch housing can easily be assembled to the centrifugal mass by snapping it on.

Abstract: An inertial mass device is realized with at least two inertial masses which can rotate relative to one another, one of which is connected to a hub disc which is effectively connected to elastic elements of a damping device and preferably with its radially inner area forms a hub for the location of a bearing arrangement. Corresponding to the hub disc there is at least one planet wheel of a planetary gear train which acts between the inertial masses. The hub disc, on its side facing away from the planet wheel, on a specified radius around its axis of rotation, has indentations formed in the peripheral direction at specified intervals, each of which indentations forms a projection toward the planet wheel on the opposite side of the hub disc, whereby the projections form a toothing on the hub disc, by means of which the hub disc is engaged with the toothing of the planet wheel for the transmission of a torque between the inertial masses.

Abstract: A torsional vibration damper has at least one inertia mass, which is connected in a rotation-proof manner to a drive and acts upon an absorption mass. The absorption mass is rotatable relative to the inertia mass and is connected thereto via connecting elements. Associated with the absorption mass is a balancing weight, which is connected via a movement-transmitting transmission to the absorption mass, on the one hand, and to the inertia mass, on the other hand.

Abstract: A friction clutch which has a release bearing and a release element with a snap connection, whereby a bias spring device is provided which is pre-installed in a separate groove in the encircling bearing ring.

Abstract: An apparatus for damping spring-mounted wheel suspension systems is disclosed as having a cylinder filled with damping medium. The cylinder is divided by a piston on a piston rod into two work chambers. The two work chambers are connected to one another by damping valves and an additional fluid connection. The additional fluid connection is provided with a non-return valve between the two work chambers. The non-return valve has an actuator which can be switched as desired inside a valve device. The valve device has a damping force adjustment which acts in opposite directions for the two directions of flow. At least one non-return valve is dependent on the direction of flow and is provided with resistance. The non-return valve is moved into its operating position by the actuator.

Abstract: A hybrid drive with an internal combustion engine and an electrical machine which has a rotor and a stator in a housing connected to the internal combustion engine. The engine and electrical machine are adaptively connected to one other by a clutch, preferably a friction clutch. The housing (21) includes a housing part (23) which supports the friction clutch (7) and the electrical machine (11), and includes a partition wall (29) which separates the electrical machine (11) from heat producers (31) such as the internal combustion engine (1) and the friction clutch (7). The insulating effect of the partition wall can be increased by the use of insulation (27) between the heat producers (31) and the electrical machine (11).

Abstract: A clutch disc includes an elastic mounting to absorb both wobbling movement and to compensate for axially offsetting transmission components. Between the hub and the components which can rotate with respect to the hub, there is a spring element which makes it possible by means of two different types of fingers to accomplish both a radially elastic centering and an axially elastic clamping. The clutch disc can thereby absorb both wobbling movements and axial offsets.

Abstract: For the drive train of a motor vehicle, a drive train assembly can be used which comprises two operational components which are separate from one another, each of which comprises a motor and a transmission which faces the drive wheel to be driven. The transmission, which can be a spur gear transmission with a driven shaft part oriented eccentrically with respect to the axis of rotation of the motor device, or can be a planetary transmission, is located together with the motor device on a common support part, on which the driven shaft of the motor device and the driven shaft part of the transmission are also mounted. The transmission is coupled to the drive wheel by means of a universal joint propeller shaft.

Abstract: A bicycle power train for bicycles, the bicycle power train including a driving sprocket set and a driven sprocket set. A chain connects the driving sprocket set and the driven sprocket set to one another. The chain transfers torque from a sprocket of the driving sprocket set to a sprocket of the driven sprocket set. The torque is transferred to the chain from the driving sprocket via drive teeth disposed on the driving sprocket. The drive teeth each include a drive flank that engages a corresponding link roller of the chain. Each drive flank has a bevel formed thereon, the bevel being shaped to compensate for the lengthening of the chain with wear. The bevel is configured to maximize the number of drive teeth that can simultaneously engage the chain and participate in the transfer of torque over the life of the chain.