Abstract: A vehicle trailer for a tractive unit, in particular in the form of a semitrailer or a drawbar trailer, has at least one electric drive system component which is integrated into the vehicle trailer and can be coupled to an electric drive system of the tractive unit. The at least one electric drive system component has an electric energy store that can be coupled to the electric drive system through an interface.

Abstract: A vehicle trailer for a tractive unit, in particular in the form of a semitrailer or a drawbar trailer, has at least one electric drive system component which is integrated into the vehicle trailer and can be coupled to an electric drive system of the tractive unit. The at least one electric drive system component has an electric energy store that can be coupled to the electric drive system through an interface.

Abstract: A heat exchanger for heat exchange between a first fluid and a second fluid is provided that includes: a block for guiding the first fluid and the second fluid separately and in a heat-exchanging manner, and a fluid connection for the first fluid. The block comprises a housing provided with a chamber through which the second fluid can flow, and a block end element for the fluid-tight separation of the chamber and the fluid connection. The housing can be provided for connecting the block to the fluid connection. The block end element is not used to connect the block to the fluid connection but rather preferably only the housing. The housing can be thickened accordingly in the region of the block connection. The fixing point for the block end element to the housing and the fixing point for the fluid connection to the housing are at a distance from each other.

Abstract: A heat exchanger for heat exchange between a first fluid and a second fluid is provided that includes: a block for guiding the first fluid and the second fluid separately and in a heat-exchanging manner, and a fluid connection for the first fluid. The block comprises a housing provided with a chamber through which the second fluid can flow, and a block end element for the fluid-tight separation of the chamber and the fluid connection. The housing can be provided for connecting the block to the fluid connection. The block end element is not used to connect the block to the fluid connection but rather preferably only the housing. The housing can be thickened accordingly in the region of the block connection. The fixing point for the block end element to the housing and the fixing point for the fluid connection to the housing are at a distance from each other.

Abstract: In an adjustment device for a camshaft of an internal combustion engine for varying the phase relationship of a camshaft with respect to a crankshaft as a function of the operating point of the internal combustion engine, the adjustment device comprises an epicyclic gear structure with a drive-side and an output side ring wheel, which are in meshing engagement with planet wheels, and the output-side ring wheel has a number of teeth different from that of the drive-side ring wheel so that the position of the camshaft relative to the crankshaft can be adjusted via an electric servomotor which drives a central sun wheel.

Abstract: In a process and apparatus for two-stage supercharging of process air for a fuel cell, in one of the two charging stages, supercharging taking place by means of a displacement machine. In the other charging stage, supercharging is performed by means of a combined expansion and compression machine. Energy is recovered from the exhaust gas of a fuel cell by means of the combined expansion and compression machine.

Abstract: In a process and apparatus for two-stage supercharging of process air for a fuel cell, in one of the two charging stages, supercharging taking place by means of a displacement machine. In the other charging stage, supercharging is performed by means of a combined expansion and compression machine. Energy is recovered from the exhaust gas of a fuel cell by means of the combined expansion and compression machine.

Abstract: A control device for a cooling part-circuit and a heating part-circuit of an internal combustion engine. The cooling part-circuit includes a radiator and the heating part-circuit includes a heat exchanger. A delivery pump is connected to at least the cooling part-circuit and the heating part-circuit. The control device includes a rotary slide driven by a drive unit which is arranged in a valve housing. Provided in the valve housing are inlet or outlet openings for 1.) a cooling part-circuit which is connected to the radiator, 2.) a suction or pressure side of the delivery pump and 3.) at least two further part-circuits. The rotary slide is constructed as a substantially flat rotary disc with at least one control edge.

Abstract: In a process and apparatus for two-stage supercharging of process air for a fuel cell, in one of the two charging stages, supercharging taking place by means of a displacement machine. In the other charging stage, supercharging is performed by means of a combined expansion and compression machine. Energy is recovered from the exhaust gas of a fuel cell by means of the combined expansion and compression machine.