The disclosed heat generating apparatus includes: a rotary shaft, a heat generator, a plurality of permanent magnets, a magnet holder, and a heat recovery system. The rotary shaft is rotatably supported by a non-rotative body. The heat generator is fixed to the rotary shaft. The magnets are arrayed to face the heat generator with a gap such that magnetic pole arrangements of adjacent ones of the magnets are opposite to each other. The magnet holder holds the magnets and is fixed to the body. The heat recovery system collects heat generated in the heat generator.

The disclosed heat generating apparatus includes: a rotary shaft, a heat generator, a plurality of permanent magnets, a magnet holder, and a heat recovery system. The rotary shaft is rotatably supported by a non-rotative body. The heat generator is fixed to the rotary shaft. The magnets are arrayed to face the heat generator with a gap such that magnetic pole arrangements of adjacent ones of the magnets are opposite to each other. The magnet holder holds the magnets and is fixed to the body. The heat recovery system collects heat generated in the heat generator.

A superconducting eddy-current brake for high-speed trains includes a pair of superconducting magnet units with alternate arrangement of N and S poles; and a cryogenic system. The superconducting magnet units are fixed on a bottom of a bogie of the train and an air gap is provided between the superconducting magnet units and a top surface of a rail below the bogie. The cryogenic system is provided on the bogie of the train. Each superconducting magnet unit is embedded with a superconducting container including a coil case, a thermal shield and a Dewar successively from inside to outside. The coil case is filled with liquid helium. A superconducting coil is provided in the coil case and immersed in the liquid helium. A high-vacuum environment is provided in the thermal shield. Liquid nitrogen inlet and outlet pipes are provided on an outer wall of the thermal shield.

A superconducting eddy-current brake for high-speed trains includes a pair of superconducting magnet units with alternate arrangement of N and S poles; and a cryogenic system. The superconducting magnet units are fixed on a bottom of a bogie of the train and an air gap is provided between the superconducting magnet units and a top surface of a rail below the bogie. The cryogenic system is provided on the bogie of the train. Each superconducting magnet unit is embedded with a superconducting container including a coil case, a thermal shield and a Dewar successively from inside to outside. The coil case is filled with liquid helium. A superconducting coil is provided in the coil case and immersed in the liquid helium. A high-vacuum environment is provided in the thermal shield. Liquid nitrogen inlet and outlet pipes are provided on an outer wall of the thermal shield.

A winding type permanent magnet coupling transmission device includes a permanent magnet rotor and a winding rotor that is coaxial with the permanent magnet rotor and capable of rotating relative to the permanent magnet rotor. An air gap exists between the permanent magnet rotor and the winding rotor. The winding rotor is connected to a control structure capable of regulating the current/voltage of the winding rotor. The control structure is capable of controlling the current or voltage of the winding rotor, so as to regulate the output torque of the transmission device, with no need to configure any corresponding mechanical execution mechanism. Therefore, the transmission device has a simple structure and small energy loss.

A winding type permanent magnet coupling transmission device includes a permanent magnet rotor and a winding rotor that is coaxial with the permanent magnet rotor and capable of rotating relative to the permanent magnet rotor. An air gap exists between the permanent magnet rotor and the winding rotor. The winding rotor is connected to a control structure capable of regulating the current/voltage of the winding rotor. The control structure is capable of controlling the current or voltage of the winding rotor, so as to regulate the output torque of the transmission device, with no need to configure any corresponding mechanical execution mechanism. Therefore, the transmission device has a simple structure and small energy loss.

Disclosed is an eddy-current rail brake which includes: a magnet array which includes a plurality of permanent magnets arranged in one row so as to face toward a rail in a braking state; a holding member which holds the magnet array, the holding member being supported so as to be rotatable together with the magnet array; a cylindrical member which covers the magnet array, which is rotatable; and a driving device coupled to an end portion of the holding member. The magnet array is switchable between the braking state and a non-braking state by rotating the magnet array.

An eddy current deceleration device includes a rotor and a stator. The rotor includes a hub, a rotor body, and a spoke. The spoke has neutral axes. The first neutral axis is a neutral axis when the spoke is bent in a circumferential direction of the rotor body. The first neutral axis is positioned forward in a rotating direction of the rotor with respect to a center line of the spoke in the circumferential direction. The second neutral axis is a neutral axis when the spoke is bent in an axial direction of the rotor body. The second neutral axis is positioned on a rotor body side with respect to a center line of the spoke in the axial direction.

A non-contact power generator includes: a magnet disposed at a distance to a main surface of a moving body that moves in one direction and the opposite direction, and the magnet generating a magnetic flux passing the main surface; a coil being separated from a surface of the magnet that faces away from the main surface, the coil being linked with the magnetic flux from the magnet; and a magnetic flux guide member disposed in a part of a magnetic path of the magnetic flux linked with the coil. The magnet is moved along the shaft in the moving direction of the moving body at a speed lower than the speed of the moving body by a reaction force acting on the magnet on a basis of eddy currents generated in the main surface in such a direction as to hinder a change of the magnetic flux from the magnet.

A non-contact power generator includes: a magnet disposed at a distance to a main surface of a moving body that moves in one direction and the opposite direction, and the magnet generating a magnetic flux passing the main surface; a coil being separated from a surface of the magnet that faces away from the main surface, the coil being linked with the magnetic flux from the magnet; and a magnetic flux guide member disposed in a part of a magnetic path of the magnetic flux linked with the coil. The magnet is moved along the shaft in the moving direction of the moving body at a speed lower than the speed of the moving body by a reaction force acting on the magnet on a basis of eddy currents generated in the main surface in such a direction as to hinder a change of the magnetic flux from the magnet.