Various implementations include an electric motor including an annular radial stator, an annular axial stator, and a rotor. The annular radial stator has an opening with an inner surface and distributed windings disposed along at least the inner surface of the opening. The annular axial stator has concentrated windings disposed along at least a first side of the axial stator. The rotor includes two or more magnets. Flux from the two or more magnets interacts with one or both of a magnetic field created by the radial stator windings or axial rotor windings. The rotor is disposed within the radial stator opening and the axes of the axial stator and radial stator are coincident with the rotor axis. The flux interacting with one or both of the radial stator magnetic field or the axial stator magnetic field turns the rotor about the rotor axis.

A polyphase claw pole motor includes: a plurality of claw poles each having a plurality of claws (31) having a pole surface (31a) that faces a rotator (10) and a radial yoke part (32) that extends from the claws (31) toward an outer contour of the claw pole, the claw poles being laminated in an axial direction so as to form an inner peripheral stator part (3); a toroidal coil (4) arranged in a gap between the respective yoke parts (32) of adjacent claw poles (31); and outer peripheral yokes (50) that are circumferentially arranged on an outer side of the inner peripheral stator part (3) so as to form an outer peripheral stator part (5). The claw poles (30) are each formed of a magnetic-molded product formed by compressing magnetic powder with a surface of such powder being electrically insulated, and the outer peripheral yokes (50) are each formed of soft magnetic laminated plates. The polyphase claw pole motor further includes first positioning means (7) for positioning each of the outer peripheral yokes (50) at a predetermined position.

A stator of a polyphase claw pole motor includes: a compressed-powder member including a compression molded product of magnetic powder; and a metal member. At least claws of the claw pole of the stator are constituted by the compressed-powder member.

There is provided a non-oriented electrical steel sheet for a stator core of a claw pole motor, the non-oriented electrical steel sheet is a strip-shaped steel sheet in which magnetic flux density in a direction forming 45 with respect to a rolling direction is higher than magnetic flux density in the rolling direction and magnetic flux density in a transverse direction that is a direction forming 90 with respect to the rolling direction.

A method for operating a permanent magnet electric machine of an engine includes determining a fault condition of the permanent magnet electric machine; and reducing a magnetism of one or more permanent magnets of the permanent magnet electric machine by increasing a temperature of the one or more permanent magnets in response to determining the fault condition of the permanent magnet electric machine.

A rotating electric machine includes a stator and a rotor disposed within the stator. The stator defines a plurality of teeth and a plurality of semi-open slots. The plurality of semi-open slots further include a plurality of slot groups wherein each slot group further includes a plurality of slot subgroups. Each slot group includes at least a first subgroup of slots having a first slot opening width and being dedicated to a first phase, and a second subgroup of slots having a second slot opening width and being dedicated to a second phase, the second slot opening width being different from the first slot opening width.

Electrical machines such as electromagnetic devices rely on the magnetic flux to create the forces required to move the component that transfers the work output of the device. Embodiment of the disclosure achieve this through a unique stator pole to rotor/actuator pole configuration that maximizes the magnetic flux flow across the air gap(s). This is achieved by tilting the air gap in more than one plane with respect to the rotation plane of the rotor.

Provided are a coil device that considerably reduces the man-hours and the cost for manufacturing, and a motor-driven valve and a solenoid valve including such a coil device. The terminal end of the magnet wire is fixed to a conducting terminal by swaging and/or fusing at a distal-end binding part for binding the terminal end of the magnet wire.

A claw-pole motor comprising a non-magnetic rotary shaft having a longitudinal axis, a plurality of flux concentrators extending along the longitudinal axis of the rotary shaft, and a plurality of magnetic claw poles extending along the longitudinal axis of the rotary shaft, each of the plurality of flux concentrators alternating with each of the magnetic claw poles about the rotary shaft, and a stator having a plurality of coil assemblies, each coil assembly including a solenoid coil and an enclosure having a upper portion and lower portion, the upper portion and the lower portion of the enclosure having alternating stator teeth about the longitudinal axis.

According to one embodiment, a rotating electrical machine includes an annular winding, a stator core, and a rotor core. At least one of the stator core and the rotor core includes a first member and a second member. The first member and the second member are formed in annular shape. The first member and the second member overlap each other in an axial direction of the shaft. The first member includes a slit-shaped first insulation section. The first insulation section extends in the axial direction. The second member includes a slit-shaped second insulation section. The second insulation section extends in the axial direction. The first member and the second member are integrally connected. The first insulation section and the second insulation section are disposed at different positions in the rotation direction.