Abstract: An electric machine contains a rotor which contains a first longitudinal section at the ambient air temperature and a second longitudinal section cooled at least partially to cryogenic temperature, a coolant inlet pipe extending into the second longitudinal section, wherein the inlet pipe is set at a distance from the rotor by a radial gap, wherein the inlet pipe in the first longitudinal section is mounted by at least two bearings, wherein the bearings are distributed on axial positions in such a way that upon action of a maximum radial force on the inlet pipe the pipe has a maximum deflection which is smaller than the radial gap. In a method for determining the axial positions, various batches of potential locations are chosen for the axial positions of the bearings, according to potential locations which has a minimum gap greater than zero.

Abstract: A superconducting apparatus includes a magnetic field generating portion including a superconducting coil, an extremely low temperature generating portion maintaining the superconducting coil at an extremely low temperature and in a superconducting state, a container defining a heat insulation chamber that accommodates the superconducting coil, a first terminal electrically connected to the superconducting coil and supplying an electric power to the superconducting coil, a second terminal connected to an external electric power source and supplying the electric power to the first terminal in a case where the magnetic field generating portion is driven, and a heat penetration preventing element holding one of the first and second terminals and thermally separating the first and second terminals from each other in a case where a driving of the magnetic field generating portion is stopped, the heat penetration preventing element restraining a heat penetration from the second terminal to the first terminal.

Abstract: A rotor is provided. The rotor includes a bearing yoke, a supporting member, a rotor substrate, a coil, and a weight coupled to the supporting member. The supporting member is coupled to the bearing yoke. The rotor substrate is supported by the supporting member. The coil is supported by the supporting member and electrically connected to the rotor substrate. The weight is coupled to the supporting member.

Abstract: The windings (12) wound around each of the teeth (9) form two coil groups (71, 72) of three-phase concentrated windings which are disposed point-symmetrically to each other with respect to the rotational shaft. Each of the coil groups (71, 72) includes a first coil (33), in which the windings (12) are wound around the teeth in a forward direction, and a second coil (34), in which the windings (12) are wound around the teeth in a reverse direction. When each of the teeth (9) is allocated with a U phase, a V phase, and a W phase in this order in a circumferential direction so that the first coil (33) wound for each phase is set to be coils of the U phase, the V phase, and the W phase, and the second coil (34) wound for each phase is set to be coils of the ?U phase, the ?V phase, and the ?W phase, the coils of the U, ?W, V, ?U, W and ?V phases are electrically connected between the adjacent segments (14) in this order.

Abstract: A stator arrangement of an electric machine, generator, and wind turbine includes a plurality of stator segments forming substantially the stator of the electric machine in a cylindric form around a radially centered shaft. The stator arrangement is radially surrounded by a rotatably mounted rotor arrangement. The stator segments are radially mounted on an outer surface of a support structure. The support structure is fixed via rigid connections to the shaft.

Abstract: An electrical energy generator for generating optimal electrical energy at very low wind speeds and at very high wind speeds. The electrical energy generator includes a support assembly having an elongate support member, and also includes a rotor assembly being rotatably disposed upon the support assembly and having a plurality of vanes being movable by air for rotating the rotor assembly, and further includes a stator assembly being mounted upon the support assembly and including a stator member being movably disposed upon the support assembly for generating energy in cooperation with the rotor assembly, and an assembly for moving the stator member relative to the rotor assembly upon the support assembly.

Abstract: A rotor (10) for a rotary electric machine which comprises: two field spiders (12) each of which runs more or less radially with respect to the main axis of the rotor (10) and comprises a series of axial arms (20) in which each arm (20) runs axially inwards from the associated field spider (12), towards the other field spider (12) in such a way that each arm (20) of a field spider (12) lies in the space there is between two consecutive arms (20) of the other field spider (12); and at least one magnetic element (24) the main orientation of which is longitudinal position transversely between two adjacent arms (20) belonging one to each field spider (12) and which comprises at least one magnet (28), characterized in that the magnetic element (24) comprises at least one support shim (30) made of a non-magnetic material and mounted on a transverse end face of the magnet (28), and means of connecting the shim (30) to the magnet (28).

Abstract: The drive system for a personal care appliance, such as a toothbrush, includes a first opposing pair of permanent magnet assemblies positioned longitudinally along the length of the internal surface of a cylindrical appliance housing, each first permanent magnet assembly having one portion with a north polarity and the other portion a south polarity, and a second pair of permanent magnet assemblies which are orthogonal to the first pair of permanent magnet assemblies, one second permanent magnet assembly having a plurality of abutting first parts along the length thereof, the parts alternating between a north polarity and a south polarity, the other second permanent magnet assembly having similar parts with reversed polarity. First and second armatures are mounted on, or a portion thereof forms, a spindle element which extends along the length of and outward from the cylindrical housing.

Abstract: A motor assembly includes a flexible base mount having an axial tube, a rigid outer mounting shell member inserted into and retained to the axial tube by retaining and retained members disposed therebetween, a stator winding subassembly surrounding the outer mounting shell member and supported by resting on a surrounding ledge of the axial tube, a plug member engaging in a socket cavity of the outer mounting shell member, a flexible inner mounting shell member inserted into the outer mounting shell member, a rotating shaft of a rotor subassembly received in the inner mounting shell member and rotatably born by an antifriction bearing, and an upper positioning ring resting on the bearing. Leakage of lubricant and deformation of the inner mounting shell member can be prevented.

Abstract: Apparatus including a monolithic, motor/generator phase insulation article having a manufactured state and a ready-to-use state. The insulation article has longitudinally-spaced-apart first and second tabs and flexible, transversely-spaced-apart first and second legs each having a first end monolithically joined to the first tab and a second end monolithically joined to the second tab. The first and second tabs are disposed longitudinally closer together in the manufactured state than in the ready-to-use state. In the manufactured state the first and second legs each have a more serpentine shape, and in the ready-to-use state the first and second legs each have a less serpentine shape. A method for manufacturing the insulation article is also described which cuts a monolithic, substantially-rectangular sheet of motor/generator phase insulation to create the insulation article.

Abstract: An electric motor includes: a stator of columnar shape including a stator core of annular shape and mold resin molding the stator core, the stator core accommodating a rotor configured to rotate about a rotary shaft; and a position detecting circuit board including a position detecting element configured to detect a position of the rotor. The stator has a cavity for accommodating the rotor. One end of the cavity is covered by the mold resin. The position detecting circuit board is placed on an opposite side from the rotor across the mold resin covering the one end of the cavity.

Abstract: An electric motor includes: a stator of columnar shape including a stator core of annular shape and mold resin molding the stator core, the stator core accommodating a rotor configured to rotate about a rotary shaft; and a temperature detecting element buried in the mold resin. The stator core includes a plurality of stator teeth around which a coil wounded around respectively. The temperature detecting element is buried in the mold resin from any one of the pair of end surfaces at a position between two adjacent stator teeth.

Abstract: An engine system is disclosed. The engine system includes an engine, an intake system for providing intake air to the engine and an exhaust system receiving exhaust gas from the engine. The engine system also includes a first exhaust turbine arranged downstream of the engine and a second and third exhaust turbines coupled in parallel and arranged downstream of the first exhaust turbine. A first valve is associated with the second and third exhaust turbines, the first valve configured to at least partially restrict exhaust gas to one of the second and third exhaust turbines and increase exhaust gas to the other turbine. The engine system also includes an exhaust gas recirculation system configured to redirect at least a portion of exhaust gas from the exhaust system to the intake system.

Abstract: The invention relates to an electrical machine (1, 2, 210) or its use as a wind power generator and a wind power installation having this electrical machine. The electrical machine has a primary part (3, 4, 222, 212, 213) and a secondary part (5, 6, 224), wherein a disc-like primary part (3, 4, 222, 212, 213) and a disc-like secondary part (5, 6, 224) are provided for forming a disc-shaped air gap, or wherein the electrical machine (1, 2, 210) has a cylindrical primary part (3, 4, 212, 213) and a cylindrical secondary part (5, 6, 224) for forming a cylindrical air gap, wherein a primary part, which can be used for a linear motor, is also used for forming the cylindrical primary part (3, 4, 222, 212, 213).

Abstract: To provide a magnetic machine capable of reducing the ripple and cogging of torque or thrust. An electric motor 1 includes three stators 6 to 8 each having an armature row, a rotor 3 having a permanent magnet row, and a rotor 10 having a soft magnetic material row. The respective phases in electrical angle between magnetic poles generated at respective armatures 6a to 8a of the armature row and the magnetic poles of the permanent magnet row are set to be each displaced in a predetermined direction by an electrical angle of 2?/3, and the respective phases in electrical angle between the magnetic poles generated at the respective armatures 6a to 8a of the armature row and soft magnetic material cores 11b to 13b of the soft magnetic material row are set to be each displaced in the predetermined direction by an electrical angle of ?/3.

Abstract: An induction motor has a rotation detector, a heat dissipating disc for dissipating heat generated from a rotor, and a cooling fan for forcibly cooling the heat dissipating disc with outside air. The heat dissipating disc is disposed between the rotation detector and the cooling fan.

Abstract: An automotive alternator is provided that has a brush holder assembly that reduces exclusive circumferential space for the brush holder assembly inside a rear bracket, and that also reduces entry of water, dust, etc., into a regulator circuit housing portion. The brush holder assembly has a base and a plate. The base is prepared by molding a brush holder portion, a regulator circuit housing portion, and a connector portion integrally, and the plate is mounted to the brush holder portion, and has a cover portion that closes the resin injection aperture of the regulator circuit housing portion. The brush holder portion, the regulator circuit housing portion, and the connector portion are formed so as to be positioned such that respective center lines thereof are in a common plane that includes a central axis of the rotating shaft. A lead-through opening that is formed on the rear bracket so as to allow the connector portion to be led through is generally closed by the connector portion and the cover portion.

Abstract: In an engine equipped with a supercharger consisting of a compressor having a plurality of blades on a turbine shaft and a turbine, at least one index means provided on the turbine shaft or the plurality of blades, and a turbo angular velocity sensor, which detects a rotation of the index means and a rotation of the plurality of blades respectively and connected to an ECU. In the engine, also, a turbo angular velocity computing means, which calculates an angular velocity by obtaining a plurality of pulses per one rotation of the turbine shaft, is provided.

Abstract: An automotive alternator is provided that reduces exclusive circumferential space for a regulator assembly inside a rear bracket, and that also increases performance in cooling the regulator assembly and a rectifier by ensuring that flows of air that cool the regulator assembly and the rectifier do not interfere with each other. An approximately C-shaped rectifier is disposed in a vicinity of a rotating shaft, and a regulator assembly is disposed between two end portions of the approximate C shape of the rectifier. A brush holder portion, a regulator circuit housing portion, and a connector portion that constitute a regulator assembly are positioned such that respective center lines thereof are in a common plane that includes a central axis of the rotating shaft.

Abstract: Provided is an electric motor which is simple to design and manufacture, and can be operated by a small current. The electric motor is comprised of a stator 55 having a first disk 45 and a second disk 50, a first ring core 10 having a first switching winding 15 divided into a winding part and a gap part, a second ring core 12 having a second switching winding 20 divided into a winding part and a gap part, and a first rotor 35 having a third disk 25 and a second rotor 40 having a fourth disk 30 mutually connected by a driving shaft 60. The first and second switching windings 15, 20 include first and second power supplies 125-1, -2, and first and second switches 75-1, -2, respectively.