Patent ID: 6175178
Filing Date: 2001-01-16
Classification: H02K,Y02E

Abstract:
A low inductance electric machine including:a. a stator structure including an armature structure made substantially of low loss material;b. a single phase of armature windings coupled to said armature structure, wherein said phase of armature windings includes one or more complementary pairs of armature windings arranged so that magnetic flux, within said armature structure, induced by currents in said complementary pairs of armature windings effectively cancels;c. a pair of rotor structures arranged to counter-rotate and store kinetic energy as flywheel momentum while providing mutually opposing external gyroscopic effects, each of said rotor structures having a plurality of rotor poles associated with said stator and separated from said armature structure by two air gaps, wherein said pair of rotor structures is configured to create magnetic poles which interact with said windings, or with magnetic flux of said windings, to provide electromechanical energy conversion;d. means to magnetize or excite magnetic flux within said rotor poles; ande. a plurality of phase trim windings arranged to provide differential magnetic fields on each side of said armature structure, and wherein each of said phase trim windings may be excited to maintain phase synchronization of said rotors, and in particular to maintain rotor-polealignment-position with respect to the circumference of said armature, independent of speed of said pair of rotor structures.