Abstract: Magnets and methods of their manufacture are disclosed for use in flywheel assemblies, such that the magnets comprise oriented fibers, such as, for example, axially-oriented fibers in a flexible rotor magnet composition to predictably allow the magnet to expand dimensionally upon rotation only in a predetermined and predictable fashion while maintaining critical contact with a rotor surface.

Abstract: A rotating electric machine for vehicular use includes: a stator that includes a stator core and a stator winding wound at the stator core; and a rotor that is rotatably disposed relative to the stator and includes a rotor core formed by laminating a plurality of electromagnetic steel sheets with a plurality of magnet insertion holes formed therein and includes a plurality of permanent magnets each held in each of the plurality of magnet insertion holes to form a magnetic pole. Each of the plurality of permanent magnets extends along a rotor axis and is formed in a shape assuming at least two different lengths along a circumference of the rotor.

Abstract: A method and apparatus for direct energy conversion that combines the properties of Type II superconductor thin films, including the Meissner effect to create vortices to control and modulate static flux coupled in a magnetic circuit, where the laws of induction are used to produce an electrical signal without the use of moving armatures. The dynamics of magnetic flux modulation results from suppression of superconductivity and the Meissner effect by external photon irradiation. The apparatus employs a vortex channel based on the Meissner Effect, a laser, a permanent magnet, fiber optics for carrying the laser beam to the vortex channel, and a transformer composed of two separate windings. The transformer windings are arranged in a circuit having a first path through the permanent magnet and a first coil of the transformer windings; and a second path through the permanent magnet, the vortex channel, and the second coil of the transfer windings.

Abstract: A stator arrangement for an electrical machine is provided. The stator arrangement has a stator having a stator stack. The stator stack has a number of adjacently disposed metal plates. A number of radial channels are provided between respective groups of metal plates by spacers. At least one transition area from the stator stack in at least one respective radial channel is provided with a curved and/or chamfered and/or stepped shape.

Abstract: An electromechanical device includes: a center shaft; a rotor having a rotor magnet disposed around an outer periphery of the center shaft; and a stator disposed on an outer periphery of the rotor, wherein the center shaft is formed of a carbon-fiber-reinforced plastic, and when projection is performed in a radial direction from the center shaft toward the rotor magnet, an angle between a direction of carbon fiber in the carbon-fiber-reinforced plastic and a direction of the center shaft is 45°.

Abstract: An electric machine a cylindrical stator core having an outer perimeter surface and an inner perimeter surface with a plurality of slots formed between the inner perimeter surface and the outer perimeter surface. The inner perimeter surface defines an inner cylindrical space for the stator that extends in an axial direction within the stator. The stator core is configured to retain a winding arrangement comprised of a plurality of conductor segments positioned in the plurality of slots of the stator core. The winding arrangement further includes a jumper extending into the inner cylindrical space and connecting two of the plurality of conductor segments. Accordingly, the jumper appears as a chord of a circular end shape of the stator core.

Abstract: This invention relates to the construction of stators for use in electric motors. A stator for an electric motor comprises an elongate tubular body defining a central cavity in which a rotor can be located, the body defining a series of axial slots extending parallel to the body axis and a series of electrical conductors extending along the channels to form electrical windings, wherein the body is formed from at least two part-circular segments of substantially the same length, the segments together defining the central cavity.

Abstract: There is provided a motor device. A motor device according to an aspect of the invention may include: a stator including a core having a coil wound therearound; a rotor having a magnet facing the core to thereby generate an electromagnetic force involved in interactions therebetween, the rotor rotating a shaft; a sleeve supporting the shaft; and a sleeve housing having a mounting surface to support the core and a protrusion protruding from the mounting surface to prevent a rotation of the core.

Abstract: An operating device for a machine includes a shaft having a channel extending through the shaft and includes a fluid mover coupled to the shaft. The fluid mover is in flow communication with the channel to channel a fluid through the channel to facilitate treating the shaft with the fluid.

Abstract: A spool carrier has a winding body with a shell having a trapezoidal cross section with two substantially right angles and one acute angle, wherein the spool wire is guided on the obtuse angle edge of the winding body, beginning parallel to the front face edges of the winding body, along the side surface adjoining the obtuse angle edge, around the winding body, to the acute angle edge of the winding body, and guided on the front face from the acute to the obtuse angle edge at an angle to the front face edge, such that it comes to rest on the obtuse angle edge in one winding step directly adjacent to the winding wire of the previous winding, and in one winding step in the next adjacent groove between two windings of the previous layer, or optionally between the flange and the winding of the previous layer.

Abstract: A rotary electric machine includes a stator in which windings are arranged around a plurality of main poles of a stator core, and a hybrid type rotor arranged with an air gap between the stator and the rotor has a step angle for the rotor of about 4.09° and uses metal bearings for supporting a rotor shaft of the rotor. Setting of the step angle for the rotor to be about 4.09° can make a rotation angle of the rotor caused by excitation of the windings by an input pulse signal larger as compared with a typical motor having a step angle of about 1.8°. With this unique arrangement, the rotor can be rotated at higher speeds, increasing the motor efficiency. Therefore, the motor output at approximately the same level as that of a conventional motor can be obtained without keeping the air gap high precision. Due to this, even if inexpensive slide bearings, i.e.

Abstract: Apparatuses are disclosed and directed to a substantially cylindrical containment layer, and methods for containment, for a flywheel apparatus comprising a plurality of predictably deformable brackets oriented to contain an impact. The brackets each have a plurality of layers and a surface for absorbing an impact, with the surface providing a glancing angle in the direction of an impact of from about 0.1° to about 5°.

Abstract: There is provided a vibrator, including: a case having an inner space; a coil fixedly mounted on a side wall of the case; an elastic member fixedly mounted on the case so as to be disposed within the coil; a weight body fixedly mounted on the elastic member; and a magnet fixedly mounted on the weight body so as to face the coil.

Abstract: A cooling device includes an inner sleeve with an outer surface, an outer sleeve surrounding the inner sleeve, and two end portions extending between the inner sleeve and the outer sleeve at the ends. The inner sleeve, the outer sleeve and the end portions define a peripheral space. A flow guiding structure defines N channels in the peripheral space for coolant to flow, where N is an integer equal to or greater than 1. Each channel has at least two branches, and N pairs of inlet and outlet corresponding to the N channels. The branches of each channel are in fluid communication with a respective pair of inlet and outlet. Each branch extends over a half circumferential part of the outer surface of the inner sleeve. An electric motor incorporating the cooling device is also provided.

Abstract: A motor may include a motor main body and an urging member. The urging member is provided with an end plate part having a plate spring part for urging the rotor and an engaging plate part which is extended along an outer peripheral face of a tube-like body part structuring an outer peripheral face of the motor main body. The engaging plate part is provided with a side plate part extended from the end plate part along the outer peripheral face of tube-like body part, a hook part which is bent from a tip end part of the side plate part to an inner side and is engaged with an opening part which is formed in the tube-like body part, and a pawl part which is bent from a tip end part of the hook part and is engaged with an inner peripheral face of the tube-like body part.

Abstract: The invention relates to an electrical motor (10), in particular an alternating current generator, having a housing (13) that has at least one bearing shield (13.2), having a rectifier device (139) which has an interconnection unit (144) that interconnects the current rectifier (147, 150) to a bridge circuit, characterized in that the interconnection unit (144) has at least one platform (295) that is oriented to the bearing shield (13.2) and the opening (40) is separated by at least one brace (340) which holds a hub (337), wherein the opening (40) has a niche (346) that is incorporated on the radial outer edge (349) of the opening and wherein the platform (295) projects into said niche (346) and a connection wire (216) exiting the platform (295) extends into the opening (40).

Abstract: An electric rotating machine includes a multi-phase armature coil that is wound around a cylindrical armature core in a distributed winding manner. Each of phase windings of the armature coil is formed of an electric wire bundle which includes a plurality of insulation-coated electric wires that are electrically connected to one another. Each of the electric wire bundles forming the phase windings has a plurality of in-slot portions and a plurality of turn portions. Each of the in-slot portions is received in a corresponding slot of the armature core. Each of the turn portions protrudes from a corresponding axial end face of the armature core and extends to connect a corresponding adjacent pair of the in-slot portions of the electric wire bundle. For each of the electric wire bundles, the electric wires of the electric wire bundle are stranded at least at the turn portions of the electric wire bundle.

Abstract: In the brushless motor, a magnetic recording disk is to be mounted on a hub. A base plate rotatably supports the hub on the upper surface. A laminated core is fixed on the upper surface of the base plate and has a ring portion and a plurality of teeth that extend radially from the ring portion. Coils are wound around the plurality of teeth. A cylindrical magnet is fixed to the hub and is magnetized for driving with a plurality of poles along the circumferential direction and is arranged to radially face the plurality of teeth of the laminated core. A wire of one end of one of the coils is drawn out to the bottom surface of the base plate through a hole arranged on the base plate. The wire is connected to a driving line for supplying a current to the coils at a position other than the position of the hole on the base plate. The hole of the base plate is plugged with a resin.

Abstract: A linear motor armature according to an embodiment includes an armature coil and a cooling jacket. The cooling jacket is provided to surround the armature coil and has an internal space into which a refrigerant is supplied. The cooling jacket is formed in a thin plate shape having a structure in which a channel for supplying the refrigerant is provided in a multiple manner in its thickness direction.

Abstract: An electric machine with a stator and a rotor. The rotor core is formed by a stack of laminations with the laminations being generally planar and oriented substantially perpendicular to the rotational axis. One of the laminations includes an axially projecting tab. An electically conductive end ring is located at an axial end of the rotor core and is in communication with a plurality of axially extending conductor bars on the rotor core. The tab is coupled with the end ring and resists a portion of the centrifugal forces acting on the end ring during rotation of the rotor. A plurality of such tabs may be used to provide support to the end ring. A method of manufacture is also disclosed.