Abstract: A hydraulic medium insert for a control valve in a hydraulic actuator which has a tubular guide sleeve for guiding a control piston, which is disposed in a receptacle, which has passage openings for the hydraulic medium, which are disposed in the guide sleeve and separated by webs. A plastic part is disposed on the exterior side of the guide sleeve and has sealing webs, which are supported on the inside on the webs of the guide sleeve, which separate the passage openings, and press against the inside of the receptacle to form a seal on the outside.

Abstract: A connecting element between a first electric shielding assembly that surrounds a cable feedthrough and includes at least one tubular insulating barrier that surrounds the cable feedthrough and at least one second electric shielding assembly that surrounds the cable feedthrough and includes at least one tubular insulating barrier that surrounds the cable feedthrough. A continuous barrier system around the cable feedthrough is provided by a connecting element with at least two interconnecting insulating barriers, which can be inserted into the shielding assemblies, even if the shielding assembly is configured from sub-segments. The disclosure also relates to an electric shield for a cable feedthrough and to a method for producing an electric shield for a cable feedthrough.

Abstract: A control valve (20) for a device for variably setting the control times of gas exchange valves (110, 111) of an internal combustion engine (100). Two working ports (A, B) and one supply port (24) are formed on an outer casing surface of a valve housing (22) of the control valve (20), the working ports (A, B) are arranged directly adjacent one another, and the supply port adjoins them. Further, two pressure medium ducts (40, 41) are formed on the control piston (30), at least one of the pressure medium ducts (40, 41) is embodied so that it is not rotationally symmetric with respect to a longitudinal axis (36) of the control piston (30).

Abstract: A hydraulic control valve for controlling pressurizing medium flows, which has a hydraulically unlockable cheek valve that includes a closing element by which a valve opening can be closed. The closing element is equipped with at least one through-hole such that a locking part that is spring-loaded via at least one flexible tongue is formed for locking the valve opening.

Abstract: A hydraulic directional valve having an electromagnetic actuating unit and a valve section, an essentially cylindrical, blind hole-like receptacle being formed on one component of the actuating unit, a flange section of a valve housing of the valve section engaging in the receptacle, the flange section being provided with an angular groove which extends in a circumferential direction, and an essentially hollow cylindrical wall of the receptacle in the region of the annular groove engaging in said annular groove in such a way that it bears on the groove base of the annular groove, along the entire circumference of said annular groove. The torsional rigidity between the flange section and the wall is increased. In this context, particular emphasis is placed on processing reliability and economic viability of the connecting process.

Abstract: An apparatus for electrical screening of a bushing output of a high-voltage line into an outer wall of an electrical high-voltage device, includes an electrically conductive screen interior and an outer insulation layer, which surrounds the screen interior. A curved circular segment with two limbs in conjunction with a correspondingly shaped barrier system ensures virtually complete electrical screening of corners and edges of a bushing output.

Abstract: The invention relates to an electromagnetic actuation unit (2) of a hydraulic valve (1), with a housing (14), a closing body (4b) and a sealing element (6), the closing body (4b) being plugged into an insertion opening (14a) of the housing (14), the sealing element (6) bearing against the closing body (4b) and the housing (14) and protecting the interior of the actuation unit against the ingress of media

Abstract: An arrangement for reducing the electric field strength on the face of an electrode, wherein the face of the electrode is surrounded by at least one electric barrier, and a shielding electrode having a defined voltage potential is disposed in the vicinity of the face of the electrode. By using a retaining element that can be connected directly to the face of the electrode, the shielding wires can be quickly and easily positioned and fixed relative to the face of the electrode and the shielding electrode relative to the face.

Abstract: A device for changing the control times of an internal combustion engine (camshaft adjuster) having a pressure medium distributor arranged within a camshaft is provided. The pressure medium distributor is provided at its front end with a radially extending shoulder, this shoulder forming part of the camshaft axial mounting.

Abstract: A hydraulic control valve (1) for controlling the flow of a pressure medium, having at least one drain port (T1, T2) communicating with a tank, at least one inflow port (P) communicating with a pressure medium source, and at least two supply ports (V1, V2, V3) communicating with at least one hydraulic consumer.

Abstract: An electrical shielding arrangement of a high-voltage line has at least two coupling elements. The coupling elements each have a tubular control electrode about a line leadthrough and are surrounded by a barrier. Owing to the fact that the reduction in the diameters of the control electrode and the barrier is matched in relation to one another, a barrier decoupled in this way can be used for mechanically tensioning the coupling systems which have been pushed one inside the other.

Abstract: An electromagnetic actuator for a hydraulic directional control valve is provided. The electromagnetic actuator is used for adjusting a hydraulic directional control valve, for example, for the variable adjustment of the control times of an internal combustion engine. The electromagnetic actuator includes a housing (08) with which the electromagnetic actuator is mounted opposite the hydraulic directional control valve. The electromagnetic actuator further includes a coil (01) that is arranged in a coil body (03). The electromagnetic field that can be generated with the coil (01) acts on an armature (09) that is arranged in the electromagnetic actuator so that it can move axially. In order to prevent that the hydraulic medium of the hydraulic directional control valve leaks from reaching the electromagnetic actuator, the actuator includes a seal (13; 24) between the coil body (03) and the housing (08). The coil body has a holder (26, 28) for holding the seal (24).

Abstract: A control valve (14) for a device (1) for modifying the control times of gas exchange valves (110, 111) of an internal combustion engine (100) is provided. A check valve is arranged inside an annular groove (44) which is formed on one of the components of the control valve (14) and through which a pressurized medium flows. This reduces the assembly costs.

Abstract: A control valve for a hydraulic adjuster for the camshaft of an internal combustion engine is provided, wherein an actuator acts on a pressure part (12) embedded in a control piston (5). In order to prevent the piston (5) from being blocked in the valve housing by the expansion thereof caused by the pressure part embedment, the pressure part (12) and/or the control piston (5) is/are provided with radial recesses (34) in the embedment area (13) which make it possible to limit joining forces and the resulting radial expansion of the piston (5). Alternatively or in addition, the external surface of the control valve (5) has a reduced cross-section in the embedment area (13).

Abstract: A connecting element between a first electric shielding assembly that surrounds a cable feedthrough and includes at least one tubular insulating barrier that surrounds the cable feedthrough and at least one second electric shielding assembly that surrounds the cable feedthrough and includes at least one tubular insulating barrier that surrounds the cable feedthrough. A continuous barrier system around the cable feedthrough is provided by a connecting element with at least two interconnecting insulating barriers, which can be inserted into the shielding assemblies, even if the shielding assembly is configured from sub-segments. The disclosure also relates to an electric shield for a cable feedthrough and to a method for producing an electric shield for a cable feedthrough.

Abstract: A control valve for a device for changing the control times of an internal combustion engine, having a substantially hollow-cylindrical valve housing, a control piston which is arranged within the valve housing and can be displaced axially, a pressure medium connection, two operating connections, and at least one tank connection. The operating connections, the pressure medium connection and the tank connection are formed as radial connections. It is possible for the operating connections to be connected to the pressure medium connection and the tank connection by axial displacement of the control piston within the valve housing. The operating connections are arranged adjacently.

Abstract: A control valve (18) for a device (1) to modify the timing of an internal combustion engine is provided. Here, a controlled rotation of the camshaft in reference to the crankshaft can be achieved via a hydraulic adjustment drive. A control valve (18) with operative connectors (A, B), a hydraulic connector (P), and at least one reservoir connector (T, T1, T2) controls the inflow of hydraulic fluid into and/or the outflow of hydraulic fluid out of the hydraulic adjustment drive. A filter (46) is arranged between the hydraulic connector (P) and the operative connectors (A, B).

Abstract: An internal-combustion engine with a device for adjusting the rotational angle (camshaft adjuster (1)) of a camshaft (2) relative to a crankshaft is provided. The device comprises a driving wheel (3) connected in a rotationally locked way to the crankshaft, a driven part (6) connected in a rotationally locked way to the camshaft (2), and an adjusting mechanism, with which the phase position between the crankshaft and camshaft (2) can be set and maintained in a certain range of angles. A reduction of the required axial structural space of the camshaft adjuster (1) and the number of individual parts is achieved in that the driven part (6) is fixed to the camshaft (2) with a frictional, positive-fit, or interference-fit connection.

Abstract: A barrier system for a line leadthrough in an electric installation has mutually adjacent wall elements forming barriers that extend in an axial longitudinal direction and are spaced apart from each other, forming channels. The wall elements lie partially on a support, at least at their lower ends. The wall elements are joined by a plug element to the leadthrough. Slots having a width which corresponds to the wall thickness of the wall elements are arranged in the plug element. The wall elements can be inserted into the slots, thus permitting a barrier system to be quickly and easily assembled and disassembled.