Patent ID: 8258658

Claim:
An electric motor ( 10 , 20 , 30 , 50 ) comprising: a fixed stator ( 12 , 22 , 32 ) and mobile equipment ( 14 , 24 , 33 ) which is movable relative to the fixed stator ( 12 , 22 , 32 ), the fixed stator ( 12 , 22 , 32 ) comprising at least two electric coils ( 13 , 23 , 37 ) mounted on a fixed armature ( 13 a , 23 a , 38 ) and the mobile equipment supporting a magnetic arrangement; the electric coils being energized electrically so as to generate a magnetic field, and the magnetic arrangement being arranged so as to create magnetic field lines that cooperate with the magnetic field to bring about the movement of the mobile equipment relative to the fixed stator ( 12 , 22 , 32 ); and the armature ( 13 a , 23 a , 38 ) of the stator ( 12 , 22 , 32 ) comprises at least one element out of reverse magnetocaloric material arranged so as to contribute to cooling the electric motor.