A rotor-stator structure for electrodynamic machinery is disclosed to, among other things, minimize magnetic flux path lengths and to eliminate back-iron for increasing torque and/or efficiency per unit size (or unit weight) and for reducing manufacturing costs. In one embodiment, an exemplary rotor-stator...http://www.google.fr/patents/US7061152?utm_source=gb-gplus-shareBrevet US7061152 - Rotor-stator structure for electrodynamic machines
Rotor-stator structure for electrodynamic machines
