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.

An electrical energy storage device comprises a housing having a first end, a second end, a first side, and a second side; a first electrode disposed in the housing adjacent the first side; a second electrode disposed in the housing adjacent the second side; and an electrolyte mixture disposed between the first electrode and the second electrode, the electrolyte mixture containing a plurality of ions. In an implementation, a channel disposed in the housing permits ions to flow adjacent to the first end and a barrier in the housing prevents ions from flowing adjacent to the second end. In another implementation, some of the ions are magnetic. In a further implementation, some of the ions have a greater density than other ions. Charging of the electrical energy storage device is enhanced by applying a magnetic field to the electrical energy storage device or rotating the device.

An axial brushless DC motor comprising a stator including a plurality of coils, a rotor including a magnet with a plurality of pairs of magnetic poles and adapted for movement relative to the stator in one or more full steps, and a coil phase circuit adapted for moving the rotor relative to the stator a fractional step less than the one or more full steps and/or holding the rotor at the fractional or one or more full steps.

A vehicle seat comprises a seat bottom having a bottom cushion and a seat back coupled to the seat bottom with the seat back having a back cushion. At least one of the bottom cushion and the back cushion defines a passage. The vehicle seat further comprises a blower assembly coupled to one of the seat bottom and the seat back. The blower assembly comprises a housing and a stator, which is coupled to the housing and comprises a plurality of driving coils. The blower assembly further comprises a rotor rotatably coupled to the housing about a rotational axis, with the rotor comprising a plurality of permanent magnets arranged to generate a flux concentrated on the driving coils. The blower assembly further comprises an impeller coupled to the rotor to rotate about the rotational axis to generate a flow of air through the passage.

A motor vehicle lock having a positioning element, especially a control shaft, and a drive unit for moving the positioning element, wherein the drive unit has a rotor and a stator, the stator having a coil arrangement and at least two magnetically conducting poles associated with the coil arrangement for conducting the magnetic field created by the coil arrangement. It is proposed that the poles each time form, with the rotor, an axial air gap relative to the geometrical rotor axis, possibly in dependence on the rotor position, and a first segment of the coil arrangement with at least two coils and a second segment of the coil arrangement with at least two coils are arranged along the geometrical rotor axis on opposite sides of the rotor.

A rotor includes a core and permanent magnets. Each permanent magnet is embedded in the core. Each permanent magnet forming one of the magnetic poles of the rotor includes a first portion and a second portion. The first and second portions and extend inward in a radial direction Dr and also extend away from a stator-facing surface of the rotor 10 in an axial direction Da. Regions of the first and second portions and away from the stator-facing surface are connected to a bottom. An inner peripheral surface of the first portion, an inner peripheral surface of the second portion, and an inner peripheral surface of the bottom form one of the magnetic poles of the rotor.

An energy efficient vehicle and a disc-type dynamic motor thereof are disclosed. The vehicle comprises front wheels and rear wheels, and a gasoline engine is assembled in the vehicle for driving a generator producing power. The power is transported to a capacitor battery via a circuit control system and then to disc-type dynamic motors, which are assembled with the rear wheels, from the capacitor battery via two power lines respectively, whereby the disc-type dynamic motors directly driving the vehicle travelling at high-speed and high torque via the wheels. Accordingly, the energy efficient vehicle does not include transmission devices, such as the clutch, the transmission, the power transmission shaft, and the differential. The power produced by the generator is directly provided to the disc-type dynamic motors to drive the vehicle travelling and is enough to drive the disc-type dynamic motors, so the vehicle does not need to stop for charging.

An axial air-gap rotary electric machine includes a stator, a coil, and a bobbin. The bobbin includes a tube and a flange. The coil is wound on the outer periphery of the tube portion with regular winding. A number of turns of each of a plurality of layers wound around an external side of a last layer in contact with the flange is at least one less than a number of turns of each of a plurality of layers wound around an adjacent internal side of the last layer.

Provided are: a motor for which high strength can be obtained in a motor casing; and a compressor that uses the motor. This motor 10 has: a rotating shaft 12 provided in a rotatable manner; a rotor 32 that rotates integrally with the rotating shaft 12; a stator 31 that rotationally drives the rotor 32; and a motor casing 14 that is a cylindrical body for accommodating the rotor 32 and the stator 31, and has, on the outer circumferential surface thereof, ribs 22 extending in a circumferential direction.

An electrical machine is disclosed. The electrical machine has a first part and a second part, the first part moveable relative to the second part. One of the first part and the second part has a plurality of cores for current-carrying windings. Each core is of soft magnetic composite material (SMC) and is shaped to be no wider at its ends than along its length.