Patent ID: 8810102

Claim:
An electric machine, comprising: a laminated stator ( 16 ) with a multi-phase stator winding ( 18 ); and a laminated rotor ( 20 ) with an exciter winding ( 29 ) which is arranged in grooves ( 40 ) and supplies the excitation of the machine together with permanent magnets ( 24 , 25 ) arranged on a circumference of the rotor, characterized in that the rotor includes a laminated rotor packet ( 21 ) which is divided in an axial direction into at least two component packets ( 21 a, b ) with the grooves ( 40 ) being aligned with one another and includes poles ( 32 - 38 ) which are offset with respect to one another, and characterized in that a pole pitch (τ 3 ) of permanently magnetically excited poles ( 24 , 25 ) and electrically excited subsequent poles ( 32 , 34 ) which are arranged therebetween are equal in magnitude.