Patent Number: 7,709,989

Title: Brushless, windingless rotor, variable reluctance, electromechanical machines, having wound-field excitation

Abstract: A combination of a unique construction format, involving two sets of rotor and stator embodiments, working in co-operation with each other, in a unique fixed, direct-axis and quadrature-axis orientation, and with unique field-winding, back-EMF cancellation, connection schemes to substantially negate the field-winding harmonic currents in the field-winding excitation circuits, and provide for a substantially square-wave shaped, open-terminal, armature output-voltage characteristic.

Inventors: Smith; Larry Llewellyn (Xenia, OH)


International Classification: H02K 1/00 (20060101)

Expiration Date: 5/04/12018