Abstract: A solenoid for a hydraulic valve has an armature chamber having chamber walls. A pole core forms one of the chamber walls and has an axial central bore. An armature is slidably arranged in the armature chamber. The armature has a central receptacle. An armature piston is arranged in the central receptacle of the armature and extends through the axial central bore of the pole core. The armature piston consists of a nonmagnetic material. The armature piston acts on a valve member when moved by the armature piston. The armature piston is a tubular member formed of a piece of planar sheet metal and has a radially outwardly projecting anti-stick disc that defines a minimal axial spacing between the armature and the pole core. The radially outwardly projecting anti-stick disc is formed as a monolithic part of the tubular member by parts of the sheet metal being bent radially outwardly relative to the tubular member.

Abstract: The invention relates to a fuel injection device for internal combustion engines, preferably Diesel engines. The device has at least one control valve by means of which a control piston is displaceable by a pressure medium in order to convey fuel through at least one channel toward a combustion chamber of the internal combustion engine. The device has at least one accumulator for the pressure medium disposed in a flow direction of the pressure medium, whereby the accumulator is provided within the control piston.

Abstract: A hydraulic positive displacement machine has rotating conveying elements whose end faces are sealed by pressure plate. This pressure plate is loaded by a control valve with hydraulic pressure in order to adjust the size of the sealing gap. The control valve has a hollow piston in which a metering orifice is located. A return connector, a connector communicating with a consumer, and a hydraulic control connector connected to the pressure plate can be controlled by the hollow piston with its metering orifice.

Abstract: A hydraulic valve, especially for controlling a camshaft movement in a motor vehicle, is provided. A valve bushing is insertable from an end face thereof into the receiving bore of a housing. The valve bushing has an axially extending control bore into which a disk is pressed with press fit from the end face of the valve bushing. The valve bushing, on an exterior surface thereof and starting from the end face, is provided with a turned groove that is disposed remote from a pressure medium flow.

Abstract: The present invention relates to a fuel injection device for combustion engines, preferably Diesel engines, with at least one pilot valve by means of which a control piston is displaceable by a pressure medium in order to convey fuel through at least one line/channel toward a combustion chamber of the internal combustion engine, whereby at least one accumulator is provided in the flow path of the fuel or the pressure medium, and an accumulator space is connected to the connecting line/channel for the fuel or the pressure medium.

Abstract: The invention relates to a pressure regulator for controlling a pre-injection quantity of fuel in internal combustion engines, preferably Diesel engines, with a control piston which is connected in a first position with a relief valve for producing a decreased pressure on an injection valve and which, in a second, subsequent position can be separated from the relief valve for producing a higher pressure.

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: A closure arrangement for a container has a container neck, having slanted grooves extending in a circumferential direction of the container neck. A removable cap has a clamping projection for each one of the slanted grooves, wherein the clamping projections slide in the slanted groove when the cap is removed from or fastened to the container neck. Each one of the grooves is delimited by two opposed slanted surfaces. The width of the slanted grooves measured in the circumferential direction matches the size of the clamping projections in the circumferential direction.

Abstract: A control device for a transmission of a motor vehicle has a housing and actuators with which a rotary or linear movement of a gear shifting shaft of the transmission is performed in order to select gates and gears of the transmission. The actuators are arranged adjacent and parallel to one another in the housing.

Abstract: A hydraulic system for a vehicle including a distributor, or switch, valve for actuating at least two operational areas and supplying the two areas with sufficient amounts of hydraulic medium is provided. The distributor, or switch, valve preferably comprises a flow regulator valve and a solenoid valve, which function so that the supply of hydraulic medium to the steering system always has priority, ensuring that the vehicle is steerable in any situation. When the steering system is operational, the supply of hydraulic medium to other operational areas, such as the clutch and transmission systems, is completely blocked by operation of the switch valve. If, however, the clutch and transmission systems should require hydraulic medium during operation of the steering system, the switch valve allows a small portion of hydraulic medium to be supplied to the clutch and transmission as well.

Abstract: An arrangement is provided for determining the position of an object of measurement without contacting the object. The arrangement includes a sensor element that reacts to magnetic forces, and along which the object can be displaced. The sensor element is provided with at least one release element, which has two magnets that are fixed relative to one anther, are spaced from one anther, and are disposed in a vicinity adjacent to the sensor element. One of the magnets, in order to produce a unilaterally enlarged virtual air gap, is rotated by a given angle relative to the other magnet.

Abstract: The system according to the invention for the relative rotating position change of a shaft with respect to a driving wheel has an adjusting device with two pressure spaces which act against one another and which can be acted upon by a pressure medium pump. In order to achieve a uniform controlled adjusting operation and a secure position fixing, the pressure space connected with the pressure medium pump is acted upon by pressure at the start of the adjusting movement before the opposite pressure space connected with the pressure medium tank is relieved.

Abstract: A damping device for an electromagnetic valve control of an internal combustion engine has a pressure chamber, a hydraulic supply line communicating with a first pressure chamber and supplying the pressure chamber with a hydraulic medium. A damping piston is positioned at one side of the pressure chamber and is moveable relative to the pressure chamber. A moveable mass acts on the damping piston. When the damping piston is moved in a first direction by the moveable mass from a rest position into the first pressure chamber, the hydraulic medium is initially displaced from the pressure chamber into the hydraulic supply line until the hydraulic supply line is closed off by the damping piston and a hydraulic pressure is generated in the pressure chamber to create a force acting counter to the movement of the moveable mass.

Abstract: A solenoid valve has a solenoid component having at least one plunger. At least one valve component having a housing and a piston slidably mounted in the housing is provided. The at least one valve component and the solenoid component are connected to one another. At least one seal, connected to the solenoid component or the at least one valve component, is provided for sealing the solenoid valve relative to a support on which the solenoid valve is mounted.

Abstract: A device for relative rotational angle changing of the camshaft of an internal combustion engine relative to its drive wheel has an inner part connected with ribs or vanes that is located rotationally movably in a compartmented wheel. This driven compartmented wheel has a plurality of compartments distributed around the circumference divided by ribs or vanes into two pressure chambers each, and with the change in rotational angle being produced by their pressurization. To minimize the influence of overlapping alternating torque influences from the valve drive of the internal combustion engine, damping structure is integrated into this device to damp the change in rotational position change hydraulically.

Abstract: A device supplying a hydraulic consumer in an internal combustion engine is provided with an air withdrawal chamber located in a pressure line for removing air from the oil. The air is removed using an expansion chamber formed in the pressure line which has a valve-controlled connection to the supply tank.

Abstract: A device for hydraulic rotational angle adjustment of a shaft to a drive wheel, especially the camshaft of an internal combustion engine, has ribs or vanes that are nonrotatably connected with the shaft, said ribs or vanes being located in the compartments of a compartmented wheel. The compartments of the compartmented wheel and the ribs and/or vanes produce pressure chambers by whose hydraulic pressurization the two structural elements can be rotated relative to one another. In order to secure the two structural elements against undesired rotation when an insufficient adjusting or retaining pressure is present, a common end face of the compartmented wheel and of the ribs and/or vanes cooperates with an annular piston that exerts a releasable clamping action on the parts that are rotatable relative to one another.

Abstract: A piston-slide valve including a housing in which a piston with at least one oil groove and control edge is guided shiftable or slidable in a bore characterized thereby that the oil groove of the piston is manufactured via wire erosion. Also the control edges of the piston are manufactured by wire erosion. The bore of the sleeve bushing is manufactured by wire erosion. The piston is made out of a needle roller. The piston has a length of approximately 13 mm and a diameter of approximately 2 mm. The wire for eroding of the piston as well as the sleeve bushing has a diameter of approximately 2/10 mm. Longitudinal sides of a multiple edged groove base or bottom of the oil groove of the piston and control edges therewith are formed in a first working step procedure and the remaining longitudinal edges of the oil groove and the remaining control edges are formed in a further working step. The piston occupies one position and another working position displaced by 900.degree. from each other.

Abstract: A hydraulic solenoid valve includes a valve housing with bores for receiving a hydraulic medium and having at least one consuming device connection and a return connection connected to the bores. A piston is connected within the valve housing and has at least one piston bore. A first valve with a corresponding valve seat is connected to the piston for opening and closing the piston bore. The first valve in its open position provides communication between the consuming device connection and the reservoir connection. A magnet housing has connected therein an armature. When the armature is displaced during normal operation in both directions, it rests at the first valve and forces the first valve into its valve seat. A return spring is positioned between the piston and the valve housing. The armature is displaceable by the force of the return spring. The piston is displaceable by the armature against the force of the return spring.

Abstract: An internal-combustion engine has a camshaft drive in which the outlet camshaft driven by the crankshaft drives the inlet camshaft via a chain. For the tensioning of the chain, two hydraulic pistons are pressed in opposite directions with respect to one another against the loose end and the load end of the interior side of the chain. For adjustment of the relative camshaft rotating position, the unit consisting of the hydraulic piston and the chain is shifted transversely to the camshafts so that the loose end is shortened and the load end is lengthened, or vice versa.