PERMANENT MAGNET ROTOR OF AN ELECTRIC MACHINE

The invention relates to an electric machine (14) in a motor vehicle, like an adjustment drive (16) or a radiator fan (90), having a rotor (24) which is mounted so as to be rotatable about a machine axis (22). The rotor (24) has a number of embedded permanent magnets (36) which are arranged in radial direction (R) with poles in tangential direction for flux concentration, wherein each permanent magnet (36) has a first pole side with a strong magnetic flux (38) and a second pole side with a weak magnetic flux (40). Two adjacent permanent magnets (36) have different pole sides (38, 40) directed towards each another. The invention also relates to the corresponding manufacturing method (82) such an electric machine (14), to a rotor (24) of such an electric machine (14) and to an adjustment drive (16) of a vehicle comprising such an electric machine (14).