ELECTRIC DRIVE MACHINE FOR A COMPRESSOR AND/OR A TURBINE, TURBOCHARGER AND/OR TURBINE

The invention relates to an electric drive machine (12) for a compressor (12) and/or a turbine (16), in particular for an exhaust gas turbocharger (10) of an internal combustion engine. The electric drive machine comprises a stator (26) having at least one multi-phase drive winding (28) for generating a drive magnetic field. The stator is provided with a rotor shaft (32) and a permanent magnet (34). The rotor shaft is designed to be fastened to a shaft (20) of the compressor and/or of the turbine. The rotor shaft has at least one first section (36) and at least one second section (38). The first section has an internal thread (40). The second section is hollow and has an inner diameter (44). The internal thread is configured for engagement into an external thread (42) on the shaft of the compressor and/or the turbine. The internal thread of the second section is designed to form an interference fit between the rotor shaft and the shaft of the supercharger and/or turbine. 本发明涉及一种提出一种用于压缩机(12)和/或涡轮机(16)、尤其用于内燃机