Abstract: The invention relates to an electric machine, comprising a stator (2), a rotor (3), a split cage (4), which separates a wet region (5) from a dry region (6), control electronics (9) and an interconnection element (7, 8), which produces an electrical contact between the stator (2) and the control electronics (9), wherein the rotor (3) is arranged in the wet region (5), wherein the interconnection element (7, 8) is surrounded at least partially by an insulating element (10), and wherein the insulating element (10) divides the dry region (6) into a first subregion (60), in which the stator (2) is arranged, and a second subregion (61), in which the control electronics (9) are arranged.

Abstract: The invention relates to an electric machine, comprising a stator (2), a rotor (3), a split cage (4), which separates a wet region (5) from a dry region (6), control electronics (9) and an interconnection element (7, 8), which produces an electrical contact between the stator (2) and the control electronics (9), wherein the rotor (3) is arranged in the wet region (5), wherein the interconnection element (7, 8) is surrounded at least partially by an insulating element (10), and wherein the insulating element (10) divides the dry region (6) into a first subregion (60), in which the stator (2) is arranged, and a second subregion (61), in which the control electronics (9) are arranged.

Abstract: A fuel cell system has a fuel cell unit for generating electric current and/or thermal heat, a cooling device provided for cooling the fuel cell unit and having at least one first flow generator for generating a flow of a first cooling fluid, in particular a liquid coolant, and a second flow generator for generating a flow of a second cooling fluid, in particular a cooling air, in which a more-efficient temperature regulation is realized, compared to the prior art, with a control unit provided for comparison of a first operating parameter, or a change in the first operating parameter, of the first flow generator with a second operating parameter, or a change in the second operating parameter, of the second flow generator.

Abstract: A vehicle having a combustion engine, a fuel cell device having a fuel cell unit, a compressed air storage for supply of a compressed air, a supply conduit provided between the fuel cell unit of the fuel cell device and the compressed air storage, for supplying the fuel cell unit with compressed air, and a further supply conduit provided between the combustion engine and the compressed air storage for supply of the combustion engine with compressed air.

Abstract: A fuel cell system has a fuel cell unit including an anode, and a recirculation unit for recirculating hydrogenous operating material flowing out of the fuel cell unit back into the fuel cell unit, wherein the recirculation unit has at least one drive unit for driving a flow of an operating material, and the drive unit is configured as a pneumatic drive unit or hydraulic drive unit for utilizing an energy of a fluid.

Abstract: The invention starts with a motor vehicle with an internal combustion engine (12) and an auxiliary power supply device, which includes a fuel cell (50), wherein energy flows and/or media flows of the internal combustion engine (12) and the fuel cell (50) are coupled with one another, in which a cooling and heating circuit (10) is provided. It is proposed that the cooling and heating circuit (10) features a first partial circuit (26) and a second partial circuit (44), of which the first (26) is allocated to the internal combustion engine (12) and the second (44) to the fuel cell (50), and that the two partial circuits (26, 44) are connected with one another via a supply line (62) having a supply valve (66) and via return line (64) having a return valve (68).

Abstract: A fuel cell system has a fuel cell unit for generating electric current and/or thermal heat, a cooling device provided for cooling the fuel cell unit and having at least one first flow generator for generating a flow of a first cooling fluid, in particular a liquid coolant, and a second flow generator for generating a flow of a second cooling fluid, in particular a cooling air, in which a more-efficient temperature regulation is realized, compared to the prior art, with a control unit provided for comparison of a first operating parameter, or a change in the first operating parameter, of the first flow generator with a second operating parameter, or a change in the second operating parameter, of the second flow generator.

Abstract: A vehicle having a combustion engine, a fuel cell device having a fuel cell unit, a compressed air storage for supply of a compressed air, a supply conduit provided between the fuel cell unit of the fuel cell device and the compressed air storage, for supplying the fuel cell unit with compressed air, and a further supply conduit provided between the combustion engine and the compressed air storage for supply of the combustion engine with compressed air.

Abstract: A fuel cell device has a fuel cell, a cooling unit for cooling the fuel cell, and a connecting unit for connecting the cooling unit to a cooled or air conditioned space for use of a space waste air for cooling.