A transverse flux rotating electrical motor comprises a stator and a rotor, the rotor comprising rings of magnets around a shaft, the shaft defining an axial direction of the motor. The stator comprises a plurality of U-shaped magnetic circuit elements each having an open end, a closed end, and upper and lower legs and being oriented on the stator such that their lengths are along the axial direction. The U-shaped elements form rings on the stator around the rotor shaft and the open ends of the elements in a given ring are oriented together along the axis. Windings, also in the form of rings, are inserted into the rings of U-shaped magnetic circuit elements, and the upper and lower legs of the U-shaped elements extend along the axial direction to at least partially enclose one of the rings of magnets of the rotor.

The invention relates to a non-cogging electric generator having at least one stator and at least one dual rotor, wherein the dual rotor comprises a plurality of primary magnet devices arranged in circular Halbach array. Non-cogging is achieved by having inner and outer rotor rotating synchronously. Concentration of magnetic flux is achieved by magnetic devices tapering into pyramidal shape, such that magnetic devices arranged on the inner rotor are facing magnetic devices on the outer rotor, whereas said magnetic devices are facing each other with the opposite polarity. Stator comprises electrical wire windings and is positioned between inner and outer rotor.

The invention relates to a non-cogging electric generator having at least one stator and at least one dual rotor, wherein the dual rotor comprises a plurality of primary magnet devices arranged in circular Halbach array. Non-cogging is achieved by having inner and outer rotor rotating synchronously. Concentration of magnetic flux is achieved by magnetic devices tapering into pyramidal shape, such that magnetic devices arranged on the inner rotor are facing magnetic devices on the outer rotor, whereas said magnetic devices are facing each other with the opposite polarity. Stator comprises electrical wire windings and is positioned between inner and outer rotor.

An electric work machine (1) includes: a brushless motor having a stator disposed around a rotor (30); and an output part driven by the rotor. The rotor has a rotor core (31) and first and second magnetic-pole parts (34S, 34N) disposed around a circumferential direction of the rotor core. When the induced voltage of the brushless motor is given as Va, the power-supply voltage of the brushless motor is given as Vb, the rotational speed of the brushless motor is given as ω, a first induced voltage constant, which is expressed by Va/ω, is given as Ea [V/krpm], a pole-pairs count, which is the number of the first magnetic-pole parts or the second magnetic-pole parts, is given as Pi, and a second induced voltage constant, which is expressed as Ea/Pi, is given as Eb [V/krpm pole-pairs count], the motor satisfies the condition: Eb≤0.025×Vb.

An electric work machine (1) includes: a brushless motor having a stator disposed around a rotor (30); and an output part driven by the rotor. The rotor has a rotor core (31) and first and second magnetic-pole parts (34S, 34N) disposed around a circumferential direction of the rotor core. When the induced voltage of the brushless motor is given as Va, the power-supply voltage of the brushless motor is given as Vb, the rotational speed of the brushless motor is given as ω, a first induced voltage constant, which is expressed by Va/ω, is given as Ea [V/krpm], a pole-pairs count, which is the number of the first magnetic-pole parts or the second magnetic-pole parts, is given as Pi, and a second induced voltage constant, which is expressed as Ea/Pi, is given as Eb [V/krpm pole-pairs count], the motor satisfies the condition: Eb≤0.025×Vb.

One variation of a system for an electric motor includes a set of coil assemblies defining: an inner radial facet, an outer radial facet, a first axial facet, and a second axial facet opposite the first axial facet. Additionally, each coil assembly in the set of coil assemblies includes a receiving member arranged at the outer radial facet of the coil assembly. Furthermore, the system includes a rotor comprising a set of magnetic elements: encompassing the inner radial facet, the outer radial facet, the first axial facet, and the second axial facet of the set of coil assemblies; and defining a radial magnetic tunnel. The system also includes a housing: engaging the receiving member of each coil assembly, in the set of coil assemblies to couple the housing to the set of coil assemblies; and includes a shaft coupled to the set of magnetic elements.

One variation of a system for an electric motor includes a set of coil assemblies defining: an inner radial facet, an outer radial facet, a first axial facet, and a second axial facet opposite the first axial facet. Additionally, each coil assembly in the set of coil assemblies includes a receiving member arranged at the outer radial facet of the coil assembly. Furthermore, the system includes a rotor comprising a set of magnetic elements: encompassing the inner radial facet, the outer radial facet, the first axial facet, and the second axial facet of the set of coil assemblies; and defining a radial magnetic tunnel. The system also includes a housing: engaging the receiving member of each coil assembly, in the set of coil assemblies to couple the housing to the set of coil assemblies; and includes a shaft coupled to the set of magnetic elements.

A propulsion system, comprising: a fan blade housing; a plurality of fan blades within the fan blade housing; one or more rows of permanent magnets, affixed to the outside of the fan blade housing; one or more fan blade bearings; one or more magnetic field generators affixed to the one or more fan blade bearings and corresponding to the one or more rows of permanent magnets, the magnetic field generators configured to cause the permanent magnets to be propelled forward in the same direction, thereby causing the fan blade housing to which they are attached, and the fan blades within, to spin.

The present disclosure provides a brushless direct-current (BLDC) motor comprising: a double rotor comprising: an inner rotor and outer rotor secured to a rotor housing having a plurality of N-pole and S-pole magnets, a stator comprising: a stator base portion, a plurality of cooling structures distributed around the stator base portion, a plurality of stator teeth, each of the plurality of stator teeth being disposed in a slot and having a plurality of windings wound around the stator tooth; and a liquid distribution comprising: a liquid introduction module comprising: a liquid introduction base portion, and a plurality of fluid channels being secured to the liquid introduction top surface, and housed within the plurality of cooling structures, and a liquid injection portion configured to channel liquid into the cavity and the plurality of cooling structures; a liquid egress module comprising: a liquid egress base portion secured to the stator.

An alternating pole electromagnetic rotary motor is presented. The alternating pole electromagnetic rotary motor contains a ring gear housing, a rotor assembly, a plurality of electromagnets, and a processing unit. The rotor assembly contains a gear carrier, at least one planet gear, and at least one permanent magnet. The rotor assembly is concentrically and rotatably mounted within the ring gear housing. The at least one planet gear and the at least one permanent magnet is rotatably connected and radially distributed about the gear carrier. The plurality of electromagnets is operatively coupled with the at least one permanent magnet, where the plurality of electromagnetics is used to attract and repulse at least one permanent magnet in order to generate a torque on the rotor assembly.