Abstract: An actuation device for machine elements having wear-induced play, especially for brakes in rail vehicles, has an actuating piston-cylinder unit which generates actuation force and has a piston rod. The piston rod cooperates with a readjusting device which compensates for play caused by wear and which supplies the actuation force to the machine element to be actuated such that wear play is compensated. The readjusting device comprises a hydraulic piston-cylinder unit which carries out the wear play readjustment through the extension of an adjusting piston. To actuate the adjusting piston, a sensor element detects the wear-induced play and, when a threshold amount of wear-induced play is reached, opens a valve which admits a hydraulic medium to the readjusting piston-cylinder unit by utilizing the operating pressure of the actuating piston-cylinder.

Abstract: An actuating device for machine elements that are subject to wear play, especially for brakes of railborne vehicles. The actuating device has a piston-cylinder unit operated by a pressure medium. The piston-cylinder unit has a piston rod engagable with an adjusting device configured as an adjusting nut/spindle assembly, for wear play compensation. The adjusting nut/spindle assembly has a sleeve-type adjusting nut with external toothing engagable with an automatically actuatable actuating drive. An electronic control unit generates an actuating signal for wear play compensation in dependence on the position of a brake piston connected to the piston rod. The brake piston position is measured by a sensor. The actuating signal is transmitted to the actuating drive.

Abstract: A device for operating a machine element subject to wear-related play, especially for brakes of rail vehicles, includes a pressure-medium-operated piston-cylinder arrangement having a cylinder and operating piston, the piston rod of which is actively connected to a readjustment device that compensates for wear-related play. To realize a simple and compact structure and create further prerequisites for active integration into an operating system, the readjustment device comprises a readjustment piston mounted in the piston-cylinder arrangement between the operating piston and the bottom of the cylinder and acts as a limit stop for the operating piston. For axial arresting the readjustment piston, a coaxial piston rod shoulder that faces the bottom of the cylinder and a holding element resting on the bottom of the cylinder form an arresting arrangement that permits movement of the readjustment piston toward the operating piston and blocks a counter movement of the readjustment piston.

Abstract: A method of producing electrical energy from rotary motion of an axle of a vehicle utilizes a generator assembly including a generator coupled to the axle. The method includes determining the rate of rotation of the axle, carrying out the electrical energy production as well as the determination of the rate of rotation exclusively through the generator, and evaluating pulse parameters of each induced electrical voltage pattern for the determination of the rate of rotation. The generator assembly includes a rotor coupled to the axle and permanent magnets mounted on the rotor distributed over the circumference thereof. The permanent magnets have radially extending polar axes. A stator includes induction coils mounted coaxially around the circumference of the rotor. An air gap is defined between the stator and the rotor.

Abstract: A method of producing electrical energy from rotary motion of an axle of a vehicle utilizes a generator assembly including a generator coupled to the axle. The method includes determining the rate of rotation of the axle, carrying out the electrical energy production as well as the determination of the rate of rotation exclusively through the generator, and evaluating pulse parameters of each induced electrical voltage pattern for the determination of the rate of rotation. The generator assembly includes a rotor coupled to the axle and permanent magnets mounted on the rotor distributed over the circumference thereof. The permanent magnets have radially extending polar axes. A stator includes induction coils mounted coaxially around the circumference of the rotor. An air gap is defined between the stator and the rotor.

Abstract: This invention relates to a work cylinder having damping stops for limiting movement of the piston within the cylinder, the cylinder having cylinder covers for closing the ends of the cylinder, whereby the damping stops are positioned and retained substantially between the cylinder covers and the cylinder walls when the cylinder covers are fastened to the cylinder.

Abstract: A land vehicle in the form of a wheeled semi-trailer and thereon (e.g., a braking device) is provided with an on-board energy having a consumer of energy providing device which is driven, through a controlling apparatus by a compressed air supply or by a flexible drive shaft arrangement connected to a wheel of the semi-trailer.

Abstract: A control apparatus is provided which controls a motor, clutch and drive gear arrangement. The device consists of a movable control lever assembly which moves from a neutral position into at least one other operating position. The control apparatus includes a switching device that is operated as a two-part activating member. The activating member is mounted in a guide arrangement which remains in a fixed position in relationship to such control lever assembly. The activating member can be moved from a neutral position of such control lever assembly into a second position in which the activating member will act upon the switching assembly.

Abstract: A fluid pressure regulating valve includes a diaphragm piston reciprocally movable within a valve housing, whereby undesirable diaphragm piston flutter is effectively dampened by use of a dampening member. The diaphragm piston separates a control chamber from an outlet chamber which is in communication with a fluid pressure receiving device. A selectively controllable solenoid valve controls the fluid pressure level in the control chamber. Differences in fluid pressure levels across the diaphragm piston result in the reciprocal movement, thereby, such movement being preconditioned to occur as a function of the fluid pressure level in the control chamber. An inlet valve and an outlet valve each communicate with the outlet chamber and are operated according to the position of the diaphragm piston. Furthermore, the inlet and outlet valves are connected by a connecting rod such that their operation is mutually dependent.