A motor including an outside rotor having a rotor disc with plural magnets alternating polarities flush mounted in the disc, an inside stator assembly with a ring of pole pieces forming a channel to house a transversely wound stator windings, and a controller coupled with feedback electronics for monitoring...http://www.google.ca/patents/US20090322165?utm_source=gb-gplus-sharePatent US20090322165 - High-Efficiency Wheel-Motor Utilizing Molded Magnetic Flux Channels with Transverse-Flux Stator
