POLYPHASE MACHINE COMPRISING A BELL-SHAPED ROTOR

摘要

The invention relates to an electrical polyphase machine comprising an inner stator (11) and a rotor (3) that is mounted on a shaft (1). Several permanent magnets (13) are disposed so as to rest against the internal face of a cylindrical rotor (3) wall (3a). The permanent magnets (13), along with at least one electrical field coil (9) of the inner stator, generate an excitation flux which penetrates the cylindrical rotor (3) wall (3a). The rotor (3) is fitted with an entraining element (4) which connects the shaft (1) in a rotationally fixed manner to the cylindrical wall (3a). The cylindrical wall (3a) encompasses the entraining element (4), at least partly rests against the same (4), and is fastened thereto.