Patent ID: 7002275

Claim:
An electric motor comprising: a stator, said stator comprising a plurality of electrical stator poles and a plurality of phases including phase windings; and a rotor, said rotor comprising a permanent magnet with at least one magnetic pole pair corresponding to said phases; wherein said stator and said rotor are arranged concentrically to a longitudinal axis of the electric motor, wherein said stator is divided in the direction of the longitudinal axis of the electric motor into a number of axial stator sections corresponding to the number of phases, and wherein each axial stator section includes several electrical stator poles and the windings of one phase, wherein at least one of said phase windings and said permanent magnet are divided into several axial sections in the direction of the longitudinal axis of the electric motor, and wherein said axial sections are staggered around the longitudinal axis of the electric motor by approximately N°, said N°=180 electrical degrees÷(number of phases), so that the torque curves of the individual phases overlap each other.