A magnetic coupling apparatus, for transmitting drive from a driving member to a driven member, wherein the driving member has at least one first magnet and the driven member has a plurality of second magnets, and wherein the driving member and the driven member are arranged so that, as the driving member rotates, the at least one first magnet approaches one of the second magnets and thus exerts a force upon it which causes the driven member to rotate.

When motor is energised, driving member will rotate and bring a magnet towards a magnet, which will cause driven member to turn. As member reaches operating speed, the repeated repulsive kicks from magnets to magnets will synchronise the rotations. One member carries four magnets and an other member has eight magnets. The member with more magnets will rotate at half the speed of the other member.

A centrifugal fluid pump with a fully magnetically suspended rotor to improve blood compatibility when pumping blood is disclosed. The pump stabilizes radial displacements of a disc-like rotor with active control through separate electric motor and magnetic bearings to improve the pump's critical performances including device packaging size, system simplicity and reliability, stiffness and other dynamic performances of suspension, power efficiency, and others.

In a permanent magnet synchronous motor drive system, phase currents can be used to calculate a current that produces no shaft torque and only motor losses and a current that only produces shaft torque. These currents can be controlled to be resupplied into the motor drive system to a desired amount on a continuous basis to maintain a DC energy storage device voltage at a desired safe level. The calculated currents are resupplied to the motor drive system such that voltage levels within the DC energy storage device that approach a voltage maximum limit are transferred to the motor in the form of current that is dissipated by the motor without losing efficiency and control of driving a load with the motor.

Electromechanical lock utilizing magnetic field forces. An actuator is moved between a locked position and an unlocked position. In the locked position, a first permanent magnet directs a first magnetic field exerting a pushing force so that rotation of the first axle is blocked, and a second permanent magnet directs a second magnetic field exerting a pulling force so that the first axle is kept uncoupled with the second axle. In the unlocked position, the first permanent magnet directs a reversed first magnetic field exerting a pulling force so that the first axle is released to rotate, and the second permanent magnet directs a reversed second magnetic field exerting a pushing force so that the first axle becomes coupled with the second axle.

A permanent magnet speed governor having a fixed magnetic gap. The permanent magnet speed governor has an outer magnetic rotor connected to a drive shaft and an inner magnetic rotor connected to a driven shaft, at least one outer permanent magnet being evenly distributed along the circumferential direction of the inner circumferential surface of the outer magnetic rotor, at least one inner permanent magnet being evenly distributed along the circumferential direction of the outer circumferential surface of the inner magnetic rotor, two magnetic pole sides of the inner permanent magnet being respectively fixed to an iron yoke, another two sides each being provided with a magnetically conductive body, one end of the inner magnetic rotor being provided with a magnetic circuit regulator used for moving each magnetically conductive body along the axial direction. Adoption of the fixed magnetic gap structure reduces the difficulty of assembly.

A magnetic type rotation transmitting mechanism has a rotating plate made of a magnetic material, and a magnet to which the rotational movement of the rotating plate is transmitted through a magnetic coupling between the magnet and the rotating plate. When the rotating plate is rotated, a plurality of oblique edge portions formed on the outer peripheral edge of the rotating plate rotate while sequentially passing through a magnet-facing area. The oblique edge portions move in the direction of the rotation centerline of the rotating plate, the rotation centerline being perpendicular to the center axis line of the magnet. The magnet is rotated about the center axis line by a magnetic force occurring between the magnet and the oblique edge portions passing through the magnet-facing area. It is possible to realize a small and compact mechanism for extracting rotation.

In one embodiment, an aircraft includes a wing operable to fold along a wing fold gap, The wing comprises an inboard edge flap and an outboard edge flap, wherein the wing fold gap is between the inboard edge flap and the outboard edge flap. The aircraft further includes an input shaft operably coupled to the inboard edge flap, the input shaft mechanically coupled to a first magnetic torque coupler assembly at a first end of the input shaft. The wing further includes an output shaft operably coupled to the outboard edge flap, the output shaft mechanically coupled to a second magnetic torque coupler assembly at a first end of the output shaft. The first magnetic torque coupler assembly may magnetically couple to the second magnetic torque coupler assembly across the fold gap.

A magnetic power assisted enhancing device having at least one power elevating module mainly comprising: a torque amplifying unit having a first mount body connected to a power transmission shaft and a second mount body, the first mount body and the second mount body being arranged with a plurality of first magnetic components and a plurality of second magnetic components respectively at intervals in ring configurations; a rotating shaft having an end connected to the second mount body; a first gear being arranged at the shaft. The first gear receiving power to make the second mount body going rotated as the first gear rotating, the second mount body and the first mount body make use the magnetic repulsion thrust force caused by the second magnetic component getting closed to the first magnetic component to increase the torque transmission in order to enhance the power outputted by the power transmission shaft.

Disclosed are an internal magnetic control device, a flywheel assembly and a fitness equipment, wherein the flywheel assembly comprises a flywheel, an internal magnetic control device and a speed measuring device, wherein the internal magnetic control device comprises a housing unit, a driving unit, two swing arms and two sets of magnetic elements, wherein the driving unit is arranged at the housing unit; a pivoting end of each of the swing arms is rotatably mounted at the housing unit; a driven end of each of the swing arms is rotatably connected to the driving unit; the two sets of the magnetic elements are respectively arranged at each of the swing arms; wherein the flywheel is rotatably arranged around the internal magnetic control device, wherein the speed measuring device comprises a sensing element and an acting member, wherein the sensing element is arranged at one of the flywheel and the internal magnetic control device, and the acting member is arranged at another of the flywheel and the internal magnetic control device; and the position of the sensing element and the position of the acting member are aligned with each other.

A magnetic coupling assembly includes a first balancing magnet positioned and surrounding drive magnets and, across a gap, a second balancing magnet and surrounding driven magnets. The drive magnets when rotated drive the driven magnets to rotate. The balancing magnets generate a repulsive force, which counterbalances an attractive force generated by the drive magnets and driven magnets. The assembly may be utilized in a pump for contactless coupling of a motor shaft to a pump shaft. The driven side of the assembly may be hermetically sealed, such as with a liquid crystal polymer boundary interposed in the gap.