A switched reluctance motor includes a stator having a central bore for rotation of a rotor therein. The stator has four equally spaced teeth extending radially inwardly from the yoke of the stator to define the central bore. A rotor assembly for rotation in the central bore of the stator is included....http://www.google.ca/patents/US5432390?utm_source=gb-gplus-sharePatent US5432390 - Switched reluctance motor
