Abstract: An automatic powershift gearbox with at least one gearbox assembly for selecting the respective gear ratios and with at least one multiple-disk clutch capable of being actuated in a controlled manner for holding or releasing individual elements of the planet gear, which allows gear shift operations without interrupting the torque flow. The multiple-disk clutch comprises a first and a second disk set which are in mutual engagement and can be brought into friction engagement by axial compression against one another. The first disk set is connected with a first shaft, and the second disk set is connected with a second shaft. The multiple-disk clutch is coupled by a transmission with an electric machine comprising a rotor and a stator, for bringing the two disk sets into and out of friction engagement by means of the electric machine. The rotor of the electric machine is supported rotatably and axially movable on one of the shafts by means of a gearbox for converting a rotary motion into a thrust motion.

Abstract: The invention relates to an assembly of an electric machine with at least two abutting circular ring or circular disk-shaped sheet metal layers, wherein each of the sheet metal layers is formed by several circular ring or circular disk-shaped sheet metal segments which are arranged concentrically about a centre axis, of which two each are abutting under the formation of a connecting joint and comprise a predetermined minimum cross-sectional area in the radial direction, and with the sheet metal segments of abutting sheet metal layers partially overlapping one another in the circumferential direction and are joined by welds distributed along the circumferential area, with the number of welds between a connecting joint of two sheet metal segments of a sheet metal layer and a connecting joint of two sheet metal segments of a neighbouring sheet metal layer being calculated in such a manner that the sum of the effective areas of these welds is at least approximately equal to the predetermined minimum cross-section

Abstract: A turbo-compressor (20, 121) for a piston combustion engine (10), with the turbo-compressor (20, 121) comprising a fresh air inlet (24) and a fresh air outlet (26), with the turbo-compressor (20, 121) to be connected with the combustion engine (10) via the fresh air outlet (26), the turbo-compressor (20, 121) comprising a transmission shaft (32) coupled with an electric machine (30) for at least one compressor wheel (34), in order to set the compressor wheel (34) in rotation via the electric machine (30), whereby compressed fresh air is provided at the fresh air outlet (26) for the combustion engine (10), and with the electric machine (30) being a reluctance machine.

Abstract: The present invention relates to a gas exchange valve drive for a valve-controlled combustion engine with a hollow cylindrical rotor (16) to be coupled with a valve member (12) and a stator (18), wherein the rotor (16) comprises permanent-magnetic rings (30) concentrically arranged one above the other, the stator (18) is at least partially constructed of a soft magnetic material and comprises at least one tooth (22) facing towards the rotor (16), the stator (18) comprises a radially inner magnetically conductive area (50) and a radially outer magnetically conductive area (52), with the rings (30) of the rotor (16) being arranged between the inner area (50) and the outer area (52) of the stator (18), and the outer area (52) of the stator (18) in at least one partial section (54) is designed with a C-shaped cross-section and comprises at least one stator coil (28).

Abstract: Half-bridge assembly for switching electrical power, wherein at least two semiconductor switches are connected in series forming a half-bridge; each semiconductor switch comprises a control input, the first semiconductor switch comprises a first power terminal which can be connected with a high voltage potential; the second semiconductor switch comprises a second power terminal which can be connected with a low voltage potential; a second power terminal of each first semiconductor switch is connected with a first power terminal of the respective second semiconductor switch; each of the semiconductor switches comprises a free-wheeling diode which is located parallel to both power terminals of the respective semiconductor switch; and a Schottky diode is connected in parallel to each free-wheeling diode, each semiconductor switch with its free-wheeling diode and each Schottky diode is connected with a heat sink in a heat conductive manner, with the thermal resistance between each Schottky diode and the heat sink