A motor winding includes a wire defining a rectangular cross-section and wound in a continuous direction about a coil axis to form a continuous coil including: a first coil segment spiraling in a first plane, defining a first external terminal, and defining a first interior end inset from the first external terminal and arranged on a first side of a coil axis; a second coil segment spiraling in a second plane parallel and offset from the first plane, defining a second exterior terminal parallel to the first external terminal, and defining a second interior end inset from the second exterior coil end and arranged on a second side of the coil axis opposite the first interior end; and a junction extending between the first plane and the second plane to couple the first interior end of the first coil segment to the second interior end of the second coil segment.

An electric machine includes a stator and a rotor. The stator is disposed near to the rotor and has at least one first stator unit and at least one second stator unit. The first stator unit has a first tooth and a second tooth, and the second stator unit has a third tooth and a fourth tooth. The rotor has a rotating direction or a moving direction with respect to the stator. The first tooth and the third tooth are adjacently disposed to each other along the rotating direction or the moving direction. The protruding directions of the first tooth and the third tooth respectively form a first angle and a third angle with the radial direction of the rotor, and the first angle and the third angle are different.

Disclosed are various embodiments for an electric machine where the stator is a coil assembly and the rotor is a magnetic toroidal cylindrical tunnel or where the rotor is a coil assembly and the stator is a magnetic toroidal cylindrical tunnel.

A human power conversion system incorporates two or more electric machines to aid in the powering of a vehicle through energy conversion. A first electric machine is coupled with the human powered input and acts as a generator when a human power input is not sufficient to produce electrical power that is provided to a second electric machine that propels the vehicle. The vehicle may be a bicycle and the first electric machine may be coupled to the crank. A bi-coupled electric machine including the first and second electric machines with a common rotor or stator may be employed and coupled to the crank and/or the driven wheel. Power produced by the first electric machine may be provided directly to the second machine or may be stored in a battery and used to propel the vehicle or power other electronic components.

A power generation system which is mounted on at least one triangular shaped horizontal base on which is placed a cylindrical platform at the center, which is called a primary rotor, and a set of three cylindrical platforms, which are called secondary rotors, which surround the first rotor. The primary rotor and secondary rotors have a specific set of neodymium magnets and are fixed on vertical axis bearings mounted on the horizontal base.

A fluid moving apparatus includes an electric motor having a rotor and a stator and a fluid displacement member. The rotor rotates relative to the stator on a common axis to generate a rotational output. The rotational output is provided to the fluid displacement member to power the fluid displacement member to one of move linearly along and rotate about the common axis. The stator includes one or more coils configured to power rotation of the rotor. The one or more coils extend circumferentially around and can be coaxial on the common axis.

An electric motor has a first carrier having an array of electromagnetic elements and a second carrier having electromagnetic elements defining magnetic poles. The first and second carriers each define an axis. An airgap is formed between the first and second carriers when in an operational position. An inner thrust bearing connects the first and second carriers and is arranged to allow relative rotary motion of the carriers. An outer thrust bearing connects the first and second carriers and is arranged to allow relative rotary motion of the carriers. The electromagnetic elements of each of the first and second carriers are arranged radially inward of the outer thrust bearing and radially outward of the inner thrust bearing. The inner thrust bearing and the outer thrust bearing are arranged to maintain the airgap against a magnetic attraction of the electromagnetic elements of the first and second carriers.

According to an embodiment, a rotating electrical machine includes a rotor and a stator. The rotor includes a first coil, first magnetic poles and second magnetic poles. The stator includes a second coil, third magnetic poles and fourth magnetic poles. One of a first magnetic pole and a second magnetic pole opposite to the first magnetic pole is formed such that a leading end of the one of the first magnetic pole and the second magnetic pole lies opposite a central portion of an opposite surface of the stator. One of a third magnetic pole and a fourth magnetic pole opposite to the third magnetic pole is formed such that a leading end of the one of the third magnetic pole and the fourth magnetic pole lies opposite a central portion of an opposite surface of the rotor.

Disclosed is a radial-axial air gap three-phase disc-type transverse flux permanent magnet motor. Each phase includes a stator consisting of shoe-shaped stator cores and shoe-shaped permanent magnets, and a radial-axial rotor. The permanent magnets are magnetized in the circumferential direction, and the magnetization directions of the two adjacent permanent magnets are opposite to each other. Armature windings are wound in the grooves formed by the alternately arranged stator cores and the permanent magnets. The radial-axial rotor includes radial teeth, axial teeth, and right-angled yokes. The radial teeth are connected to the axial teeth through the right-angled yokes. Adjacent radial/or axial teeth are spaced at a mechanical angle of 360/n degrees. Radial teeth and the adjacent axial teeth under the same pole pairs are spaced at a mechanical angle of 180/n degrees, where n is the number of pole pairs of the radial-axial air gap three-phase disc-type transverse flux permanent magnet motor.

Disclosed are various embodiments for electric machines with fractional concentrated winding having a coil winding assembly with at least a first and a second laminated stator pole segment, each of the laminated stator pole segments having the shape of a tapered H and mechanically joined together to form a ring-like stator core with a plurality of circumferentially distributed stator poles and slots for coils, the first and second stator pole segments comprising a plurality of laminated stator pole segment pieces oriented in a radial direction and coupled together to form a unified stator pole segment with a 3D flux path, and wherein the laminations of each of the laminated stator pole segment pieces has the shape of a U.