Abstract: A hydraulic system for actuating at least two operating systems of a motor vehicle has a first hydraulic medium reservoir for storing a hydraulic medium. A distribution valve is connected to the first hydraulic medium reservoir and to the operating systems of the motor vehicle. A control unit is connected to the distribution valve which is configured to distribute the hydraulic medium from the first hydraulic medium reservoir to the operating systems of the motor vehicle and to control flow of the hydraulic medium to the operating systems of the motor vehicle such that one of the operating systems has priority with regard to supply of the hydraulic medium. A first one of the operating systems is a brake device having a brake power assist unit, a brake valve, and a master brake cylinder. The brake power assist unit is connected via the brake valve to the control unit.

Abstract: A control device for semiautomatic gearshifting mechanisms of motor vehicles has a selector shaft of a gearshifting mechanism and at least one rotatable shifting element acting on the selector shaft so as to rotate and axially move the selector shaft for selecting a gutter and shifting a gear. A switching valve actuates the at least one shifting element for rotating the selector shaft and for axially moving the selector shaft. The shifting element is a shift drum with at least one control curve. The control curve is a groove in the mantle of the shifting element. The control device provides a simplified hydraulic control of the switching valves and has a simplified configuration.

Abstract: A travel measuring and control device for a vehicle transmission has a measuring arrangement with one or more measuring elements cooperating with a selector shaft of the transmission and with a measuring device cooperating with the measuring element. The measuring element has one or more measuring surfaces having an incline in an axial direction and in a rotational direction of the selector shaft. An adjustable sensing element rests against the measuring surface and is operatively connected with the measuring device. The measuring element is preferably axially fixedly seated on the selector shaft or an extension of the selector shaft and preferably fixedly seated on the selector shaft or the extension thereof so as to rotate with the selector shaft or extension.

Abstract: A pump for conveying a liquid has a housing and a shaft rotatably supported in the housing. An eccentric drive is arranged in the housing. At least one drive element is provided and is configured to be driven by the eccentric drive. The shaft is configured to adjust the eccentricity of the eccentric drive. The drive element is configured to be adjusted according to the eccentricity of the eccentric drive by a translatory movement in a direction transverse to the shaft.

Abstract: The invention relates to a displacement machine, in particular a displacement pump used in an automobile and having two components movable slidably relative to one another. In order to keep the wear on the components low, even in the case of a poorly lubricating operating medium, there is provision for at least one component of the two components to be hardened at least on the surface and to consist of sintered material which contains predominantly ferrite and a constituent for improving the sliding properties. This design is particularly advantageous in automobile pumps operating with transmission oil or feeding fuel.

Abstract: A control device for switching an intake or exhaust valve of an internal combustion engine has a control valve with a control valve piston for controlling flow of a hydraulic medium from a pressure line to the intake or exhaust valve. At least one actuating element is correlated with the intake or exhaust valve and has a first end acted on by the hydraulic medium. At least one damping device interacts with the at least one actuating element and is arranged at a second end of the actuating element opposite the first end. The at least one damping device exerts a damping force onto the actuating element counteracting a force exerted by the hydraulic medium.

Abstract: An actuating device for a differential lock has a piston housing having a pressure chamber. An actuator piston is arranged in the pressure chamber of the piston housing. A hydraulic medium tank is provided. A pump conveys a hydraulic medium from the tank to one end of the actuator piston, wherein the actuator piston can move in the pressure chamber and acts on the lock when loaded by the hydraulic medium. One or more conduits connect the hydraulic medium tank and the pressure chamber to one another. The conduit has a temperature-dependent throttle element for adjusting a flow cross-section for the hydraulic medium based on the temperature of the hydraulic medium.

Abstract: An actuating device for hydraulically securing a camshaft of an engine of a motor vehicle in a start position has a solenoid valve controlling the flow of a pressure medium to a camshaft adjuster with a rotary slide valve that is fixedly connected to the camshaft and moves the camshaft into the required start position according to the pressure medium supplied to it by the solenoid valve.

Abstract: A solenoid valve has a housing having work, pressure, and tank connectors. An armature is movably arranged in the housing and cooperates with a coil. A slide is moveably arranged in the housing and has a hydraulic chamber connected to the work connector and connectable to the pressure connector. A plunger is positioned between the armature and the slide. The armature acts on the plunger which acts on the slide for moving the slide against a counter force. The plunger has a cross-section and the slide has a piston surface cooperating with the plunger, wherein the cross-section is smaller than the piston surface. In another embodiment, the slide has a first end, loaded by a supply pressure of the pressure connector, and a second end, loaded by a return pressure, so that the slide is hydraulically tensioned by the supply pressure and the return pressure.

Abstract: A device for exhaust gas after treatment of diesel engines has one or more storage containers containing an urea solution and having a flexible wall. At least one compressed air conduit is connected to a mixing area and supplies compressed air to the mixing area. A pump conveys the urea solution from the storage container to the mixing area where a mist of the urea solution and the compressed air is formed. In another embodiment, the pump is eliminated and the urea solution is conveyed under its own weight from the storage container to the mixing area. In yet another embodiment, a pressure chamber is provided in which the storage container is arranged. A compressed air supply conduit is connected to the pressure chamber and pressurizes the exterior of the storage container.

Abstract: A protective device and method for producing bores, especially very small bores, that open out into a hollow space in a tubular component are provided. The protective device is embodied as a hollow body that is at least partially energy reducing for laser beams. Pursuant to the method, the wall of the component is perforated with a laser beam to produce the bore. After perforation of the wall, the energy of the laser beam is reduced within the hollow space of the component to such an extent that the laser beam does not damage the wall of the hollow space that is disposed across from the produced bore.

Abstract: A hydraulic control valve has a solenoid with a coil having an interior. The solenoid also has a pole shoe inserted partially into the interior of the coil, wherein the interior of the coil defines an armature chamber and wherein the pole shoe delimits the armature chamber axially. The solenoid also has an armature arranged in the armature chamber and moveable in the armature chamber relative to the coil. The solenoid further has an armature plunger connected to the armature, wherein the pole shoe has a central bore and wherein the armature plunger is received in the central bore and penetrates the pole shoe. A hydraulic part with a valve housing formed as a mounting bushing and resting against the pole shoe is provided. The valve housing has an axial valve bore. The hydraulic part also has a low pressure area surrounding the valve housing, wherein the valve housing has at least one radial bore connecting the axial valve bore with the low pressure area.

Abstract: A directional seat valve has a valve housing having a pressure connector for supplying pressure medium to the valve housing, a tank connector for returning pressure medium to a pressure medium tank, and a working connector for supplying pressure medium to a working device. The valve housing has a valve bore. Shaped parts with a valve seat are press-fit into the valve bore. A valve body in the valve bore controls together with the valve seats the pressure medium flow between the connectors. The seat valve is assembled by press-fitting the first shaped part with its valve seat into the valve bore, inserting the valve body into the valve bore, and press-fitting the second shaped part with its valve seat into the valve bore. The press-fit insertion depth of the first and second shaped parts in the valve bore is selected based on the position of the armature push rod.

Abstract: A pressure medium supply arrangement for a CVT transmission has a pump that supplies pressure medium to control cylinders of the CVT transmission in order to change a gear ratio of the CVT transmission. The pump has a high pressure side and a low pressure side. The pump further has a bypass channel connecting the high pressure side and the low pressure side. An electrically controlled control valve arrangement is connected to the pump for opening and closing the bypass channel in order to adjust a conveyed flow of the pump.

Abstract: A valve control mechanism for intake and exhaust valves of internal combustion engines is provided. The valve control mechanism has at least one piezo element, at least one valve element operated thereby, and at least one adjustment piston. Inflow and outflow of a pressure medium to the adjustment piston is controlled by the valve element. The adjustment piston is moveable by the pressure medium, against a counter pressure, for opening an intake or exhaust valve.

Abstract: The invention relates to a method for machining control edges of a valve, preferably of a valve for a fuel injection device of an internal combustion engine, with the fuel injection device having at least one piston with control edges which co-operate with control edges fixedly connected to a valve, wherein respectively co-operating control edges are machined in one single machining operation with the aid of one single tool. The invention also relates to a fuel injection device with a valve which has control edges machined according to this method and which activates at least one injection valve body for closing off nozzle openings, wherein the valve is controlled by a control unit and is equipped with working connections by which a pressure medium is supplied to a control piston for displacing the injection valve body.

Abstract: The present invention relates to a control valve, especially for fuel injection devices for internal combustion engines, preferably diesel engines, with a valve housing within which at least one piston is displaceable and which comprises stops for the piston, wherein at least one of the stops is axially displaceable.

Abstract: A directional seat valve has a valve housing having a pressure connector for supplying a pressure medium to the valve housing, a tank connector for returning the pressure medium to a pressure medium tank, and a working connector for supply the pressure medium to a working device. A valve bore is arranged in the valve housing, and the shaped parts each having a valve seat are press-fit into the valve bore. A valve body is arranged in the valve bore and cooperates with the valve seats for controlling flow of the pressure medium from the pressure connector to the tank connector and the working connector. When assembling the directional seat valve, the first shaped part with the first valve seat is press-fit into the valve bore and the press-fit insertion depth in the valve bore is selected based on the position of the armature push rod.

Abstract: A radial-piston pump has at least one delivery unit with a delivery element. A pump casing is provided which has a first accommodation space for a medium to be delivered and a second accommodation space for a lubricant, the pump casing further has an eccentric side and a casing side. A separating device separates the first accommodation space and the second accommodation space from one another. The separating device has a first sealing element disposed fluid-tightly on the casing side of the pump casing and a second sealing element disposed on the eccentric side and connected fluid-tightly with the first sealing element. A shaft bearing configuration is disposed in the pump casing and supports an input shaft having an end portion. An eccentric element is disposed on the end portion of the input shaft. The second sealing element is disposed so as to be capable of sliding in a circumferential direction of the eccentric element.

Abstract: A hydraulic system for actuating at least two operating systems of a motor vehicle has a first hydraulic medium reservoir for storing a hydraulic medium. A distribution valve is connected to the first hydraulic medium reservoir and to the operating systems of the motor vehicle. A control unit is connected to the distribution valve which is configured to distribute the hydraulic medium from the first hydraulic medium reservoir to the operating systems of the motor vehicle and to control flow of the hydraulic medium to the operating systems of the motor vehicle such that one of the operating systems has priority with regard to supply of the hydraulic medium. A first one of the operating systems is a brake device having a brake power assist unit, a brake valve, and a master brake cylinder. The brake power assist unit is connected via the brake valve to the control unit.