Abstract: The invention relates to a heat accumulator for storing thermal energy in at least one heat accumulator block, which heat accumulator has a removal device for removing stored thermal energy. For the uniform removal of energy from the accumulator, the heat accumulator block and the removal device according to the invention are separate from each other and can be moved in relation to each other. At least one heat-exchanger surface for transferring heat from a fluid or an electrical heating element into the heat accumulator block can be provided in the heat accumulator block. For the removal of thermal energy from the heat accumulator block, the removal device can have at least one evaporator surface for producing a phase change in a heat-transfer fluid.

Abstract: A fuel injector for fuel injection systems of internal combustion engines includes a solenoid coil; an armature acted upon in a closing direction by a restoring spring; and a valve needle, which is connected to the armature in force-locking manner and on which a valve-closure member is formed, which forms a sealing seat together with a valve seat surface. The armature strikes against a stop face of an inner pole of the solenoid coil by way of a stop face, and the armature stop face is provided with a coating. The coating has a surface structure.

Abstract: A fuel injector for fuel injection systems of internal combustion engines includes a solenoid coil; an armature acted upon in a closing direction by a restoring spring; and a valve needle, which is connected to the armature in force-locking manner and on which a valve-closure member is formed, which forms a sealing seat together with a valve seat surface. The armature strikes against a stop face of an inner pole of the solenoid coil by way of a stop face, and the armature stop face is provided with a coating. The coating has a surface structure.

Abstract: A fuel injector for fuel injection systems of internal combustion engines includes a solenoid coil; an armature acted upon in a closing direction by a restoring spring; and a valve needle, which is connected to the armature in force-locking manner and on which a valve-closure member is formed, which forms a sealing seat together with a valve seat surface. The armature strikes against a stop face of an inner pole of the solenoid coil by way of a stop face, and the armature stop face is provided with a coating. The coating has a surface structure.

Abstract: A fuel injector for fuel injection systems of internal combustion engines includes a solenoid coil; an armature acted upon in a closing direction by a restoring spring; and a valve needle, which is connected to the armature in force-locking manner and on which a valve-closure member is formed, which forms a sealing seat together with a valve seat surface. The armature strikes against a stop face of an inner pole of the solenoid coil by way of a stop face, and the armature stop face is provided with a coating. The coating has a surface structure.

Abstract: An ignition device, particularly a spark plug for internal combustion engines, permits improved corrosion protection. The ignition device includes an electrical connector and a tubular, metallic housing having a screw-in thread imprinted on it. At least one of the metallic components of the ignition device is provided at least partially with a protective coating made of a zinc/nickel alloy.

Abstract: An ignition device, particularly a spark plug for internal combustion engines, permits improved corrosion protection. The ignition device includes an electrical connector and a tubular, metallic housing having a screw-in thread imprinted on it. At least one of the metallic components of the ignition device is provided at least partially with a protective coating made of a zinc/nickel alloy.

Abstract: A device and a method for detecting and distinguishing between shelf-forming supports in cassettes and disk-shaped objects deposited thereon are provided for increasing accuracy in the determination of the position of shelves and objects as well as reliability of detection in distinguishing between cassette types without a disruptive influence being exerted on the objects by the inserted protective supports. The objects and different types of supports for the objects which are distinguished through an offset arrangement in the measurement plane pass through measurement beam bundles with their end sides, wherein each of the measurement beam bundles is situated in the region of only one type of support. The extension of the end sides of the supports in the measurement plane is completely detected by the measurement beam bundle. The device is used for the fabrication of integrated circuits.

Abstract: A device and a method for detecting and distinguishing between shelf-forming supports in cassettes and disk-shaped objects deposited thereon are provided for increasing accuracy in the determination of the position of shelves and objects as well as reliability of detection in distinguishing between cassette types without a disruptive influence being exerted on the objects by the inserted protective supports. The objects and different types of supports for the objects which are distinguished through an offset arrangement in the measurement plane pass through measurement beam bundles with their end sides, wherein each of the measurement beam bundles is situated in the region of only one type of support. The extension of the end sides of the supports in the measurement plane is completely detected by the measurement beam bundle. The device is used for the fabrication of integrated circuits.

Abstract: A method for manufacturing a brake rotor which includes a disc-shaped carrier and friction rings arranged on or on top of the carrier, so that the friction rings and carrier form a single piece construction. The carrier and friction ring(s) are separately molded into pre-forms, subsequently joined and finished formed in a press tool. The carrier and friction rings are made from carbon/carbon materials and ceramic materials respectively. The carrier has a hat-shaped cross-sectional shape with a flanged outer edge and the friction rings are attached to each side of the flanged edge of the carrier. The brake rotor may be directly mounted onto the wheel flange via the carrier using bolts.

Abstract: A brake rotor includes a disc-shaped carrier and friction rings arranged on or on top of the carrier, so that the friction rings and carrier form a single piece construction. The carrier and friction rings are made from carbon/carbon materials and ceramic materials respectively. The carrier has a hat-shaped cross-sectional shape with a flanged outer edge and the friction rings are attached to each side of the flanged edge of the carrier. The brake rotor may be directly mounted onto the wheel flange via the carrier using bolts.

Abstract: The rectifier arrangement, preferably for a three-phase generator for a motor vehicle, has at least one power diode of positive polarity and at least one power diode of negative polarity assigned to respective half waves of each phase of the three-phase current and a cooling arrangement for the power diodes, the power diodes of like polarity being arranged on respective heat sinks in an electrically and thermally conductive fashion, and the heat sinks being sandwiched together with at least one electrically insulating part (32) which contains the electrical conductors between the diodes and the three-phase winding.

Abstract: A turbocharger includes a turbine housing with a variable geometry mechanism which controls the flow area of the throat through which motive exhaust gasses are communicated to the turbine wheel. The turbine housing is provided with an insert which defines one wall of the throat and which is cast in place as part of the turbine housing. The insert may be made of a relative expensive, high nickel content material to assure that a non-corrosive surface is provided adjacent to the vanes which are pivotally actuated to vary the area of the throat. The remainder of the housing is made of a standard ductile iron which is substantially less expensive than the more expensive corrosive resistant high nickel content material from which the insert is manufactured.

Abstract: A thrust bearing for constraining axial movement of the shaft of a turbocharger is made from two separate components which are assembled together, thereby simplifying manufacturing since no drilling is required. The components each include cooperating contoured surfaces for forming the oil feed holes which extend between the working surfaces of the thrust bearing, the oil feed passages, which communicate oil to the oil feed holes, and an oil gallery, which communicates oil to the oil feed passages. The oil gallery is entirely internal to the turbocharger, thereby minimizing oil side leakage. The gallery is fed from the turbocharger lubricating oil supply through an aperture extending through one of the sides of the thrust bearing in communication with the gallery.

Abstract: A turbocharger having a variable nozzle vane assembly to be used in association with an engine. A nozzle ring having a plurality of rotatable vanes mounted thereto defining an annular passageway within the turbine housing through which exhaust gas passes upstream of a turbine. Included is a means for rotating the plurality of vanes and a means for preventing binding of the components during thermal cycling.

Abstract: A turbocharger having a variable nozzle vane assembly to be used in association with an engine. A nozzle ring having a plurality of rotatable vanes mounted thereto defining an annular passageway within the turbine housing through which exhaust gas passes upstream of a turbine. Included is a means for rotating the plurality of vanes and a means for preventing binding of the components during thermal cycling.