Patent ID: 8247943
Filing Date: 2012-08-21
Classification: H02K

Abstract:
1. A brushless electric DC motor/generator, the improvement comprising: a) a stator having an outer surface, b) a cylindrical induction structure juxtaposed the outer surface of the stator, the induction structure comprising at least one wire wound coil segment, c) a rotor having a cylindrical inner surface, d) a cylindrical permanent magnet structure juxtaposed the inner surface of the rotor and disposed proximate the induction structure, the magnetic structure including at least two spaced apart annular rings, e) means for mounting the rotor and stator to one another for relative coaxial rotation about a center axis and in a manner such that there is at least two spaced apart radial gaps, the first gap between the first annular ring and the induction structure and the second gap between the second annular ring and the induction structure, the stator being disposed between the gaps and separating the induction structure from the magnet structure, and wherein: