Patent ID: 8217548

Claim:
A cooling fan module for an internal combustion engine of a vehicle, comprising: a housing adapted to engage a radiator of the vehicle and forming a cowling; a fan located within the cowling for generating a flow of air through the cowling; and a motor supported by the housing and driving the fan, the motor comprising: a permanent magnet stator which has an even number of magnetic poles; and a rotor which has a shaft, a rotor core fitted to the shaft, a commutator fitted to the shaft adjacent the core, and windings wound about teeth of the rotor core and electrically connected to segments of the commutator, wherein each winding has at least one coil wound around a respective single one of the rotor teeth; wherein the windings are arranged such that each coil is connected, at each end, to a coil wound in the opposite direction; and wherein the rotor core has m teeth and the windings have 2 m coils, each coil being wound around a respective single one of the teeth and each tooth supporting two of said coils.