Patent ID: 8354771

Claim:
A rotor ( 1 ) for a rotary electrical machine, comprising: two pole wheels ( 2 ) each comprising a series of axial claw poles ( 20 ) of a trapezoidal overall shape which extend axially from an extreme radial outer edge of each of the pole wheel ( 2 a ) towards the other pole wheel ( 2 b ), such that each claw pole ( 20 a , 20 b ) of the pole wheel ( 2 a , 2 b ) is situated in a space defined between two consecutive claw poles ( 20 a , 20 b ) of the other pole wheel ( 2 b , 2 a ); and a magnetic assembly ( 3 ) disposed in at least one interpole space ( 22 ); the magnetic assembly ( 3 ) including at least one member ( 31 ) made of a magnetic material and at least two magnets ( 30 ), such that part of the magnetic assembly being received in a groove ( 21 ) made in each of facing edge faces of the two adjacent claw poles ( 20 a , 20 b ); the at least one member ant the at least two magnets placed together in at least one interpole space such that the at least two magnets being distributed symmetrically in the at least one interpole space.