Patent ID: 8760030
Filing Date: 2014-06-24
Classification: H02K

Abstract:
1. A rotary apparatus for an electric motor or a generator each having a rotor and a stator with a working surface comprising a flexible rotor having a circumference where: (1) said flexible rotor is a spring-like magnetically permeable band that circumscribes the working surface of the stator and said stator has a circumference and sets of stator windings, (2) said flexible rotor differs in circumference from the stator surface it circumscribes, having a smaller circumference than the stator circumference when the working stator surface facing the rotor is concave and a larger circumference than the stator circumference when the working stator surface facing the rotor is convex, (3) when current is directed through sets of stator windings to produce magnetic poles at equally-spaced locations around the stator surface, regions of the flexible rotor closest to these magnetic poles are attracted to and brought into solid contact with the stator surface, and each region of the flexible rotor between these contact locations springs away from and forms an arch above the stator surface as a result of the difference in rotor and stator circumferences, (4) when stator windings are driven in typical motor operation fashion by either an alternating current source or switching circuitry to advance the location of the stator's electromagnetic poles forward around the circumference of the stator surface, regions of rotor stator contact move forward around the stator surface following the advancing positions of the magnetic poles, and the flexible rotor is force-wrapped around the stator circumference, (5) as the rotor is force-wrapped around the stator, the rotor and stator circumferences difference causes all points of the rotor to rotate around its center by an incremental amount proportional to the circumference difference between the rotor and stator, (6) wherein a flexible rotor motor is produced by mechanically linking movement of the flexible rotor to either (a) a surrounding wheel or (b) a central rotating shaft, or (7) a flexible rotor generator is produced by (a) injecting a small seed current into stator windings to attract the flexible rotor to the stator surface, then (b) mechanical forces are applied to separate the rotor from the stator surface and convert the applied mechanical energy to increased magnetic field energy associated with the stator windings, and then (c) the increased magnetic energy is harvested from the stator windings, converting said magnetic field energy to electrical energy.