Abstract: A multi-part filter combination is received in a stepped bore of a fluid-carrying component. A larger-diameter filter part is associated with a larger-diameter bore portion, and a smaller-diameter filter part is associated with a smaller-diameter bore portion. The two filter parts of the filter combination are connected by a connecting part. When the two filter parts are joined in their respective final position in the bore, this connecting part is detachable by means of a die to be introduced into the bore. The filter combination can be used in a valve block serving to receive a magnet valve.

Abstract: A multi-part filter combination is received in a stepped bore of a fluid-carrying component. A larger-diameter filter part is associated with a larger-diameter bore portion, and a smaller-diameter filter part is associated with a smaller-diameter bore portion. The two filter parts of the filter combination are connected by a connecting part. When the two filter parts are joined in their respective final position in the bore, this connecting part is detachable by means of a die to be introduced into the bore. The filter combination can be used in a valve block serving to receive a magnet valve.

Abstract: In a method for testing a measuring sensor for the determination of an oxygen concentration in a gas mixture, the measuring sensor supplies a detection voltage furnished by a Nernst measuring cell and corresponding to the oxygen concentration. The detection voltage is evaluated by a circuit arrangement and is picked off between a first electrode exposed to the gas mixture and a second electrode exposed to a reference gas. The measuring sensor is heated to operating temperature. The Nernst measuring cell is exposed to a constant test voltage and a gas mixture with a well-defined oxygen concentration and a measuring current of the Nernst measuring cell is evaluated.

Abstract: A contact element, in particular for making electrical contact to a sensing element of a gas sensor. The contact element has at least one connecting conductor, guided in a metal-sheathed line and contacted to at least one flexible connecting line. A connecting point between the at least one connecting conductor and the at least one connecting line is arranged in a contact housing that allows sealed and temperature-resistance contacting. The contact housing has at least one connecting element that is immovably joined to the at least one connecting line and may be contacted to the at least one connecting conductor. The at least one connecting element is arranged with an interference fit and in a form locking manner in the contact housing. The contact housing is enclosed by a temperature-resistant protective sleeve, which is joined directly to the metal-sheathed line (20,22) and to the at least one connecting line (20, 22).

Abstract: A magnetic valve that switches at high differential pressures and furnishes a large flow cross section. The magnetic valve has an armature, which when current is supplied to a coil is movable toward a pole core counter to the force of a restoring spring. The armature is capable of opening an auxiliary valve of small sealing diameter directly and a main valve of large sealing diameter indirectly. The auxiliary valve and the main valve have a common closing body, which is movable relative to the armature with a limited stroke. The auxiliary valve communicates through a conduit of the closing body with the outflow side of the magnetic valve. In the open position of the magnetic valve, the closing body is held by a stop ring of the armature. The magnetic valve is suitable in particular for slip-controlled hydraulic brake systems of motor vehicles.

Abstract: The invention relates to a piston, through which a fluid can flow, for a piston pump, which piston has a longitudinal bore into which a spring-loaded inlet valve body is inserted. In order to be able to bring a helical compression spring, which loads the inlet valve body, to bear against an annular shoulder in the longitudinal bore and to be able to check and if necessary improve its seating after installation, the invention proposes to produce the inlet valve body in two parts comprising the inlet valve disk and the inlet valve stem and to join these two parts to one another after the helical compression spring has been correctly inserted into the piston. The inlet valve disk can for example be joined to the inlet valve stem by ultrasonic welding, thermoplastic riveting or screwing.

Abstract: A solenoid valve which guarantees the reliable opening of the valve, even when there are great pressure differences. The solenoid valve has an armature which receives a tappet, that can be longitudinally moved in the solenoid valve. A restoring spring, which transports the armature with the tappet into a closed position of the solenoid valve, engages one side of a collar of the tappet and a compression spring, which acts in the opposite direction from this restoring spring and is supported on the armature. The compression spring has a greater initial stress than the restoring spring. Pressure drops can produce a hydraulic closing force on the tappet, which force is directed counter to the magnetic force action.

Abstract: The invention relates to a cylindrical filter element, which has a longitudinal slot in order to be able to expand the filter element elastically for the purpose of fitting in a circumferential groove. To prevent any fluid from being able to pass unfiltered through the longitudinal slot, the invention proposes to configure end faces, which delimit the longitudinal slot, such that they run in the secant direction or in the peripheral direction. This has the advantage that the end faces overlap and therefore the longitudinal slot is closed when the filter element is installed.

Abstract: The ignition coil includes a cast resin portion; a primary winding embedded in the cast resin portion; a secondary winding embedded in the cast resin portion; at least one contact part electrically connecting an end portion of an ignition cable and a high-voltage end of the secondary winding; a retaining part (4) having a throughgoing aperture for receiving the ignition cable (2), the retaining part (4) protruding from the cast resin portion (14); a shrink hose (3) acting as a sealing means surrounding the end portion of the ignition cable (2) concentrically, extending through the aperture of the retaining part (4) and beyond the retaining part (4); and a shrink sleeve (6) acting as additional sealing means concentric with the end portion of the ignition cable (2) and connected with the end portion of the ignition cable at least in one end region and with the retaining part (4) at least in another end region thereof so as to seal against moisture.

Abstract: In a piston with an encompassing seal, which is seated slidably in a cylindrical receiving bore of a structural part such as a housing block and which can be acted upon by pressure on at least one end, the piston is intended to have a shoulder for receiving the seal. This shoulder divides a cylindrical running face of the piston of a segment having a jacket face, and a groove is formed into the jacket face for receiving a ring that secures the seal in the axial direction and also acts as a stripper ring protecting the sealing ring.