A spherical resolver system includes a spherical body, an outer body, a first sensor coil, a second sensor coil, a third sensor coil, a first primary coil, and a circuit. The spherical body has a first axis of symmetry, a second axis of symmetry, and a third axis of symmetry, and the first, second, and third axes of symmetry are disposed perpendicular to each other. The circuit is coupled to the first primary coil and is operable to supply a first alternating current (AC) reference signal (V.sub.r1) to the first primary coil, whereby a first sensor signal (V.sub.x) is selectively induced in the first sensor coil, second sensor signal (V.sub.y) is selectively induced in the second sensor coil, and a third sensor signal (V.sub.z) is selectively induced in the third sensor coil, and supplies one or more signals representative of the sensor position.

A hollow low-current single-phase induction motor capable of starting under its own power may have a stator and a rotor. The stator may comprise a case and a winding. The case may have a base, an annular outer circumferential wall, an annular inner circumferential wall, a plurality of first extensions formed at the outer circumferential wall, and a plurality of second extensions formed at the inner circumferential wall so as to respectively face the first extensions. The rotor may have a flange, a plurality of coil supports formed along the outside circumference of the flange, and a plurality of annular rotor coils which are attached to the respective coil supports. The coil supports may be inserted between the first extensions and the second extensions such that at least one thereamong is misaligned in the circumferential direction relative to the first extensions and the second extensions.

The present invention is an electrical machine comprising a rotor (10) and a stator (12) having radial passages (28) arranged circumferentially along the stator, magnetic-flux generators (34) housed in the passages, and a stator bearing (24) containing the rotor. According to the invention, the radial passages (28) comprise fluid-circulation galleries (36) facing the magnetic-flux generators (34).

A rotating electric device comprising: an outer stator (210) comprising an outer stator iron core (211) having a plurality of outer stator winding slots (213) formed on the inner peripheral surface thereof at a predetermined interval in the circumferential direction, and an outer winding (510) wound around an outer stator iron core tooth (218) relatively formed by a pair of outer stator winding slots (213) adjacent to each other; an inner stator (220) comprising an inner stator iron core (221) having a plurality of inner stator winding slots (223) formed on the outer peripheral surface thereof at a predetermined interval in the circumferential direction; and a rotor (300) having, between the outer stator (210) and the inner stator (220).

A rotary motor comprising an annular rotatable bearing having an inner surface having a diameter equal to or greater than 0.5 meters and an outer surface, the bearing including a plurality of magnetic rotor teeth elements positioned around a circumference of the outer surface and a stator including a plurality of permanent magnets and a plurality of energizable coils, the stator mounted separately from and positioned with respect to the bearing such that the plurality of rotor teeth elements of the bearing are radially proximate to the permanent magnets of the stator. Upon application of alternating current in a flux switch pattern in the plurality of energizable coils of the stator, torque is applied to the plurality of magnetic rotor teeth elements.

The present invention relates to an in-wheel motor driving apparatus for reducing weight, improving Hall sensor assembly performance, and reducing a defect rate. According to one embodiment of the present invention, the weight of an in-wheel motor can be reduced by separating a suspension housing and a shaft and applying different materials thereto. Furthermore, the ease of assembling a Hall sensor can be improved, and the defect rate can be reduced.

A motor includes a motor housing, a rotating shaft assembly including a rotating shaft, a rotor, and a bearing in which the rotor and the bearing are mounted to the rotating shaft. The motor further includes a stator installed in the motor housing, the stator surrounding the rotor, a bracket mounted to the motor housing, and an elastic mesh that defines a plurality of pores, that is disposed between the bracket and the bearing, and that contacts at least one of the bracket or the bearing.

A magnetically controlled wheel based on electromagnetic propulsion system includes a magnetron wheel body, a stator core, a main shaft, a bearing part, a rotor core and a wear-resistant tire, wherein the main shaft is mounted on the middle part of the magnetron wheel body; the outer end of the main shaft is connected with a shaft cap; the inner end of the main shaft is welded with a fixed shaft; the stator core is welded on the main shaft; the outer side of the stator core is provided with a plurality of protruding claw poles; the claw poles are wound with a stator winding; the rotor core is sleeved on an outer of the stator core; the inner wall of the rotor core is provided a plurality of rotor teeth poles; and the rotor teeth poles are wound with a field winding. The assembling is convenient, the shock absorption performance of the magnetic control wheel body is enhanced, the movement of the magnetic control wheel body is realized, the consumed energy is provided through conversion by electric energy, the speed of the existing vehicle is raised, the bearing piece increases rotation stability of the rotor iron core, a plurality of tire surface inner supporting pieces, a magnetic insulation ring and the wear-resisting tire, the magnetic control wheel body can be driven to rotate reversely conveniently, and steering of the magnetic control wheel body is realized.

Methods, systems, and devices are disclosed for wind power generation. In one aspect, a wind power generator includes a support base; inductors positioned over the support base in a circular array; an annulus ring track fixed to the base support and providing a circular track around which the inductors are located; an annulus ring rotor placed on the annulus ring track and engaged to rollers in the circular track so that the annulus ring rotor can rotate relative to the an annulus ring track, in which the annulus ring rotor include separate magnets to move through the circular array of inductors to cause generation of electric currents; and a wind rotor assembly coupled to the annulus ring rotor and including wind-deflecting blades that rotate with the rotor and a hollow central interior for containing a wind vortex formed from deflecting wind by the blades to convert into the electric energy.

An electric propulsion system includes a mast defining an axis of rotation. At least one yoke is rotatably mounted to the mast. A fairing assembly surrounds the at least one yoke. An electric motor includes a stator assembly associated with the fairing assembly and a rotor assembly associated with the yoke.