Abstract: An actuating device for automation of a manual transmission of a vehicle has a housing in which a first main piston and a second main piston are slidably supported. A control lever, fixedly connected to the actuator shaft of the manual transmission, is provided to select a gate of the manual transmission. The control lever is positioned between the first and second main pistons. A first valve hydraulically controls and actuates the first main piston by a hydraulic medium. A second valve hydraulically controls and actuates the second main piston by the hydraulic medium.

Abstract: An actuator for a gear shifting mechanism of a motor vehicle has a housing with pressure chambers and one connector opening into each pressure chamber for supplying a pressure medium into the pressure chambers. A control member is positioned in the housing so as to be axially displaceable in the housing by the pressure medium into different switching positions. A first and second auxiliary piston are supported on the control member and displaceable relative to the control member by the pressure medium. The first auxiliary piston has a first end facing away from the second auxiliary piston, the first end of the first auxiliary piston having a first abutment. The second auxiliary piston has a first end facing away from the first auxiliary piston, the first end of the second auxiliary piston having a first abutment. The first auxiliary piston delimits at least partially the first pressure chamber and the second auxiliary piston delimits at least partially the second pressure chamber.

Abstract: An actuating device for a brake system of a vehicle a housing and at least one piston slide positioned in the housing for loading the brakes with a pressure medium. The brake system has brakes for the vehicle wheels and a control unit connected to the brakes for sending control signals to the brakes. The brakes are supplied via brake lines with the pressure medium and have wheel sensors connected to the control unit. The wheel sensors determine the rotational velocity of the vehicle wheels during a braking operation and send a signal related to the rotational velocity to the control unit. At least one piezoelectric element is positioned in the housing of the actuating device for actuating the at least one piston slide. The at least one piezoelectric element is connected to the control unit of the brake system.

Abstract: A control device for automatically operating a transmission of a vehicle has at least one actuator for moving a selector shaft of the transmission by rotation and axial translatory movement in order to select a gate and a gear of the manual transmission. A control member is coupled to the at least one actuator so as to be rotated by the at least one actuator. The control member includes a gate change for effecting the axial translatory movement of the selector shaft and a control path for rotating the selector shaft.

Abstract: A solenoid valve has a solenoid including a push rod. The solenoid has a central axis along which the push rod is displaceable. A valve member with a piston is provided, and the valve member and solenoid are enclosed in a casing. The solenoid and the valve member are connected to one another before being mounted in the casing such that the solenoid and the valve member are movable relative to one another in a direction perpendicular to the central axis.

Abstract: An actuating device for automatically operating a manual transmission of a vehicle includes at least two gear and shift actuators for moving by rotation and translatory movement a selector shaft of a manual transmission in order to select a gate and a gear of the manual transmission. Each one of the gear and shift actuators includes a first piston that upon displacement moves by rotation or translatory movement the selector shaft.

Abstract: The actuating device includes a housing having at least one inlet. At least one piston slide is slidably positioned in the housing for pumping a medium from the at least one inlet to a consuming device. At least one piezo element for axially displacing the at least one piston slide is provided.

Abstract: An actuating device for a coupling of an automatic transmission of a vehicle includes a housing and at least one piston slide positioned in the housing for pumping a pressure medium to a coupling element. At least one piezo element is positioned in the housing and acts on the at least one piston slide for displacing the piston slide from a neutral position in a reciprocating displacement direction within the housing.

Abstract: The actuator for a position-adjusting device, wherein the position-adjusting device has a stationary part, a movable part, and at least one coupling element and wherein the at least one coupling element is hydraulically movable by the actuator for coupling and decoupling the stationary part and the movable part relative to one another, has a housing and at least one valve piston arranged within the housing so as to be movable between two end positions defining an open position and a closed position of the actuator. The housing has a work connector, a pressure-relieved tank connector, and a pressure-loaded tank connector. The pressure-loaded tank connector includes a pressure-limiting valve. The pressure-relieved pressure connector during displacement of the valve piston between the two end positions communicates with the work connector until a respective one of the two end positions is almost reached. In the closed position of the actuator the work connector is connected to the pressure-loaded tank connector.

Abstract: An actuator system for a gear shifting mechanism with a gear shifting shaft of a motor vehicle has a first actuator having a first control member moveable into various first switching positions and a second actuator having a second control member moveable into various second switching positions. One of the first and second actuators displaces the gear shifting shaft in the axial direction of the gear shifting shaft and the other of the first and second actuators rotates the gear shifting shaft. The first and second control members have axes positioned parallel to one another. A kinematic coupling device connects the first and second control members and the gear shifting shaft.

Abstract: An adjusting drive for a transmission of a motorized vehicle has a housing and an adjusting member supported within the housing. The adjusting member has at least three control positions. The housing has at least two valve-controlled connecting adapters for supplying a pressure medium to the housing and loading the adjusting member on two sides. A gear shifting shaft is coupled to the adjusting member.

Abstract: An adjusting drive system for a transmission of a motorized vehicle has a gear shifting shaft and a first and a second adjusting drive operatively connected to the gear shifting shaft. The first adjusting drive rotates the gear shifting shaft and the second adjusting drive axially displaces the gear shifting shaft. The adjusting drives may be linear drives or rotary drives with respective axially displaceable adjusting members or rotary adjusting members. The adjusting drive system may also have at least two gear shifting shafts and at least two adjusting drives whereby one of the adjusting drives is respectively connected to one of the gear shifting shafts.

Abstract: An actuating device for a throttle valve of a carburetor used in connection with an automatic transmission, wherein the throttle valve is connected to a throttle shaft and a position of the throttle shaft is adjustable by the accelerator pedal of the vehicle, has a linkage including a first part and a second part. The first part is connected to the throttle shaft and the second part is connected to the accelerator pedal. During an automatic gear shifting operation the first part is displacable relative to the second part with a pressure medium. The first part is preferably a piston with a piston rod whereby the piston is loaded by the pressure medium. The second part includes a housing in which the position is displacably arranged.

Abstract: An apparatus having two pistons journalled elastically yieldable counter to tensioning direction. As a consequence of double-acting construction, impacts or shocks of an endless drive and with that wear of a primary-side drive element, that is that of a tooth belt or chain connecting the crank shaft with the cam shaft can be avoided. If during operation of the apparatus moreover shocks or impacts arise and occur in the endless drive, then the pistons can yield elastically so that tensioning shoes fastened on the pistons are not subject to any increased wear. As a consequence of resilient damping of the shocks or impacts, the entire apparatus is also less strongly burdened and loaded so that a long life expectancy is assured. As a consequence of the elastically yieldable journalling, the pistons are always again loaded into the tensioning positioning thereof so that the tensioning of the endless drive is not influenced thereby.

Abstract: An electroproportional solenoid valve unit has a valve housing with hydraulic connectors for a hydraulic medium. A piston with a hollow interior is positioned in the valve housing and is slidable therein. A pressure spring is arranged at one end of the piston. A solenoid is connected to the valve housing and cooperates with the other end of the piston for moving the piston counter to the force of the spring. A first hydraulic chamber is located at the first end of the piston and a second hydraulic piston is located at the second end of the piston. The piston has a first annular channel adjacent to the first hydraulic chamber and a second annular channel adjacent to the second hydraulic chamber. The first and second annular channels are connectable to the hydraulic connectors. The second hydraulic chamber facing the solenoid is separated from the hollow interior of the piston and from the second annular channel.

Abstract: A volume flow control for a hydraulic system of a vehicle has a pump for supplying a main consuming device and an auxiliary consuming device with a hydraulic medium. A valve having a main connection for connecting the pump to the main consuming device an auxiliary connection for connecting the pump to the auxiliary consuming device and is provided. The valve has a main piston with a throttle and an auxiliary piston positioned downstream of the throttle. The throttle is positioned within the auxiliary connection. The auxiliary connection is pressurized by the main piston. The auxiliary piston has a first end face, subjected to the operational pressure of the hydraulic medium, and a second end face, biased by at least one pressure spring and subjected to a reduced pressure of the hydraulic medium caused by the throttle.

Abstract: A proportional magnet valve is provided with which manufacturing tolerances can be equalized and balanced by having an armature with an adjustment member axially adjustable. Consequently it is made possible to adjust every magnet valve that is mass produced so that a predetermined coil current corresponds to a predetermined magnet force and with that corresponding to a predetermined working pressure of a magnet valve. Because of adjustment capability of the armature, no close or narrow manufacturing tolerances must be maintained to permit cost advantageous production of the magnet valve. Also, an exchange of a magnet valve upon wear or damaging thereof is possible in a simple and straight forward manner because the novel magnet valve can be adjusted exactly without difficulty.

Abstract: A vehicle clutch is comprised of a supply cylinder activated by a clutch pedal and a receiving cylinder for hydraulic fluid displaced from the supply cylinder when the clutch pedal is pressed down. A fluid line connects the two cylinders. A safety device is connected within the fluid line and comprises at least one throttle element for reducing the fluid flow from the receiving to the supply cylinder when a preset engaging speed for engaging the clutch is surpassed. The safety device includes a measuring orifice connected in parallel to the throttle element. A solenoid is provided which has a closing device for closing the fluid line between the two cylinders with the exception of the throttle element when a preset fluid pressure differential measured before and behind the measuring orifice is surpassed. Two pressure switches are coordinated with the measuring orifice for measuring the fluid pressure differential at the measuring orifice.