Abstract: An actuator for a hydraulic brake for use on a bicycle with a handlebar, including a handle housing, a hydraulic master cylinder which contains a piston, and which hydraulic master cylinder is filled with brake fluid and is integrated into the handle housing, a brake handle by means of which the piston can be moved to generate pressure in the master cylinder by means of the brake fluid, a brake hose and a vent line, whereby located in the handle housing are a brake line and a vent line which are connected to the master cylinder and are at an angle to one another. On their ends, the two lines have connection threads which are identical, so that the brake hose can be connected both axially parallel to a straight handlebar and at an angle .alpha. when a curved handlebar is used.

Abstract: A hydraulic, adjustable vibration damper for motor vehicles, with a damping piston fastened to a piston rod, which damping piston divides the work cylinder into two chamber halves filled with damping fluid, has a bypass located parallel to the valves of the damping piston. In the bypass there is at least one valve which reacts as a function of the pressure, and to control the bypass, there is a device to adjust a control body, which control body can be pressurized in the closing direction by a pressure medium. Between the pressure medium and the control body there can be an axially movable pressure intensifier which is sealed on its circumference, whereby corresponding to the pressure intensifier there can be an additional spring force which acts in the direction opposite to that of the pressure medium.

Abstract: For a dual-mass flywheel in the driving train of a motor vehicle there is proposed a cage-free ball-bearing 9 which has solid balls and is therefore particularly narrow in the axial direction and is sealed in a lubricant-tight manner by a sealing and insulating ring arrangement 31 formed by two ring elements 27, 29. The ring elements 27, 29 are tightly connected to one another axially beyond the ball-bearing 9 and rest with inherent elasticity under bias on the lateral faces of the ball-bearing 9.

Abstract: A friction clutch can typically have a rotary power input member which can be rotationally engaged by means of a torsional damping device such as springs located between the input and output members. The output member can include a hub, non-rotationally connected to a hub disc, and the input member can include at least one disc-shaped member disposed adjacent the hub disc, which disc-shaped member can have friction linings for engaging a rotating part of an engine. The torsional damping device can include a base friction apparatus and a load friction apparatus for which friction rings are used, which rings have an internal axial stress and generate the frictional force as a result of their material properties and their axial friction mounting.

Abstract: An anti-roll vehicular suspension system and a hydraulic rotary actuator system in an anti-roll vehicular suspension system with a hydraulic rotary actuator in a two-part stabilizer apparatus, having a first stabilizer part, which is non-rotationally connected to a rotary actuator shaft, and a second stabilizer part, which is connected non-rotationally to a rotary actuator housing, whereby a plug-in connection with a mounting bracket serves as a connection between the stabilizer part and the rotary actuator.

Abstract: A torsional vibration damper for the drive line of a motor vehicle includes an input damper part rotatable about an axis of rotation, an output damper part rotatable about the axis of rotation relative to the input damper part over a limited relative angle of rotation, a spring system coupling the two damper parts together in a rotationally elastic manner, and a friction ring axially clamped between friction surfaces of the damper parts by an axial spring force. The friction ring has a carrier of substantially annular disk-shaped form and consisting substantially of fibrous-material-reinforced synthetic plastic material and friction linings affixed to the carrier. The friction linings are composed of a synthetic plastic material substantially devoid of reinforcing materials and projecting beyond the carrier on both axial sides by a distance corresponding to a predetermined abrasion volume. The carrier of the friction ring is coupled to one of the damper parts.

Abstract: According to an embodiment of the invention it is proposed, for determining the weight of the useful load on a vehicle, that the height of the vehicle body above the chassis be determined, this height be compared with a threshold value and that a switch is made between a hard damping characteristic (for a heavy useful load) and a soft damping characteristic (for a light useful load) in a springing and damping system depending on the sign of the deviation from the threshold value.

Abstract: A multi-speed drive hub for bicycles, with or without a back-pedal brake, can have a hub shift transmission which has a first, and second, and a differential planetary gear set. A differential ring gear which belongs to the differential planetary gear set, can be connected to a hub sleeve by means of a clutch device which acts in one direction of rotation.

Abstract: Process for the filling of a piston-cylinder unit, for example a shock absorber, with compressed gas and for closing the gas chamber of the piston-cylinder unit with a sealing element in the form of a base. The piston-cylinder unit is placed in an apparatus which apparatus can be connected to a compressed gas source from which the gas chamber is filled. The base is inserted by the apparatus into the open end of the piston-cylinder unit, after which the piston-cylinder unit, now under pressure and closed off by the base, is closed by, the process of welding.

Abstract: A system of fastening a flywheel on an output end of a crankshaft of an internal combustion engine, the flywheel being combined into a single component with a clutch plate unit and a clutch disc. The fastening can be achieved with essentially axial joint surfaces on the output end on one hand, and on the flywheel on the other hand, wherein the joint surfaces are designed as tapered or cylindrical surfaces which are self-locking in the axial direction.

Abstract: A multiple sprocket chainwheel for bicycle derailleurs to drive a hub bushing on the rear wheel by means of at least two sprockets which have different numbers of teeth, and which are located non-rotationally on a chainwheel bushing, whereby spacing connecting rings with bearings and a drive bushing are located between the sprockets, which drive bushing is driven in the driving direction by the chainwheel bushing by means of a freewheel mechanism, whereby the connecting rings have clamping projections which can be inserted into clamping points on the sprockets, which makes possible it possible to have an alternating arrangement in series of a sprocket, a connecting ring, a sprocket, a connecting ring etc. The desired position of one sprocket in relation to another is achieved when a guide tooth on the inside diameter of the one sprocket coincides with the guide tooth on another sprocket.

Abstract: A shock absorber with a check valve device and a check valve device for a shock absorber is disclosed. The check valve device located in the bypass of a shock absorber between a high-pressure segment and a low-pressure segment has a check valve which can be moved by an external control into a standby opening status, in which the actual opening can be performed as a function of the pressure prevailing in the high-pressure segment, when the pressure falls below a predetermined value. By coordinating the stroke distance of a check valve body with a magnet armature, and taking into consideration a control chamber discharge cross section, noises and fluctuations of the damping force characteristic can be eliminated even with a very soft comfort setting of the check valve device.

Abstract: Pneumatic spring, consisting of a spring bellows acting as a rolling bellows, whereby the spring bellows border a spring chamber provided with a gas charge under pressure, whereby the spring bellows are connected on one hand to a roll-off tube and on the other hand to an axially-movable outer tube, a connection to a compressed gas supply, whereby the outer tube is also actively connected to a vibration damper filled with damping medium and which has a cylinder in which a piston on the piston rod moves axially and which has a connection to an equalization chamber, whereby the unit consisting of the pneumatic spring and vibration damper contains fastening elements for the connection, whereby the roll-off tube and the cylinder form the equalization chamber, which is bordered on the end by a base of the roll-off tube.

Abstract: Hydrokinetic torque converter, including a housing driven by an internal combustion engine with a housing wall near the drive which is provided with a concentric guide hub, a pump wheel integrated into the housing wall away from the drive, a turbine wheel located between the pump wheel and the housing wall near the drive, which turbine wheel is non-rotationally connected by means of a turbine wheel hub to the output, possibly a stator located between the two, whereby the turbine wheel and/or the pump wheel are provided with axial bearings opposite the stator, and whereby the walls of the pump wheel and/or of the turbine wheel pressurized with axial pressure are provided on their radially inside diameter with mountings for fastening the axial bearings.

Abstract: A vehicle, including a vehicle body, a chassis with wheels and tires on which the vehicle rests, a number of vehicle suspension springs and shock absorbers which are mounted between the wheels and the vehicle body and execute a change in their axial length as a function of the wheel spring travel in the form of a displacement between a piston fastened to a piston rod and a pressure tube of the shock absorber, and thereby displace a damping medium through a damping device, as well as an arrangement to fasten the piston rod and the pressure tube to the vehicle body and the wheel, characterized by the fact that the shock absorber has a damping force family of characteristics which consists of at least three individual damping force families of characteristics, the first damping force family of characteristics of which is designed so that it exerts a very low damping force, whereby this damping force family of characteristics is located in the vicinity of the normal spring deflection range of the shock absorber,

Abstract: A derailleur with at least two sprockets (A, C) on a sprocket unit (A-C) is designed so that the chain (B) can be shifted up and down more easily between a smaller sprocket (C) and a larger sprocket (A). For this purpose, there is a double tooth space (ZA) on at least the larger sprocket (A), which forms a channel for the transfer of the chain between the two sprockets. By means of a link support plate (16) of the larger sprocket (A), a path (B1, B2. B3, B4, B5) which is curved or bent radially outwardly convexly--seen in the axial direction--of a chain transfer segment is achieved, which is formed during the transfer of the chain from the smaller sprocket (C) to the larger sprocket (A) in the vicinity of the double tooth space (ZA).

Abstract: A motor vehicle vibration damper having a piston disposed on a piston rod within a cylinder of the damper unit, is provided with a mechanical limit-stop for resisting and limiting movement of the piston rod out of the cylinder. The limit stop can preferably comprise a spring disposed about the piston rod, which spring can have a stop member connected to each end thereof in a reclosable manner. The stop members can comprise a guide surface for guiding movement of the piston rod within the limit stop, and the limit stop, comprising the spring and stop members, can be disposed within the cylinder, about the piston rod, in a free-floating manner.

Abstract: An anti-theft device for a motor vehicle has a control device for disengaging at least a part of the drive train of the motor vehicle when an incorrect security code is entered, and can allow for normal operation upon entry of a correct security code.

Abstract: A two-mass flywheel includes a device (11) that in series with a slip friction clutch (13) couples a secondary mass (5) rotationally-elastically to a primary mass (1). The slip friction clutch (13) includes two side disks (25, 27), similar to cup springs, that engage opposite faces of a center disk (21) at the same effective diameter. The two side disks (25, 27) are preassembled to make a subassembly in which the spring preload can be adjusted after assembly.

Abstract: Rotary actuator, including a cylinder and motor shaft, as well as end caps which define a work chamber, whereby a number of ribs on the inside surface of the cylinder and the same number of vanes on the motor shaft divide the working area into work chambers which are alternately supplied with hydraulic medium, and seal units inside grooves in the ribs and vanes which hydraulically separate the work chambers from one another, characterized by the fact that there is a space between the seals and the side walls of the grooves which is offset by an additional volume.