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| Number | Title | Issue Date |
| 7183678 | AC winding with integrated cooling system and method for making the same A winding of an electric machine is provided, where the winding includes at least one series of serially connected AC bars. Each AC bar includes a series of serially connected turns formed by litz wire having a plurality of strands, and at least one cooling tube. In... | 02/27/2007 |
| 7183688 | Stator for an electric motor A stator for an electric motor having a stator core which has a number of stator teeth and stator slots located between the stator teeth, the stator slots being designed to receive stator windings, the stator slots being given different depths in order to accommodat... | 02/27/2007 |
| 7183686 | Permanent magnet synchronous motor A synchronous motor includes a stator, a rotor and permanent magnets. The rotor includes a rotor iron core that is rotatable relative to the stator, and a plurality of conductor bars accommodated within corresponding slots in the rotor iron core. The conductor bars ... | 02/27/2007 |
| 7183681 | Electric power steering apparatus In an electric power steering apparatus that generates an auxiliary steering torque by a brushless motor in response to a steering torque applied on a steering wheel and transmits it to an output shaft of a steering mechanism while reducing it by means of a reductio... | 02/27/2007 |
| 7180311 | Physical quantity sensing device with bridge circuit and zero point adjusting method A physical quantity sensing device includes a bridge circuit that has first and second input points, to which an AC voltage is applied, and first and second output points connected to a differential amplifier. The bridge circuit includes a first bridge arm for elect... | 02/20/2007 |
| 7180216 | High-intensity discharge lighting system and alternator power supply A high intensity lighting system comprises a plurality of high intensity discharge lamps electrically connected to a polyphase alternator and a prime mover mechanically connected to the alternator. An inherent impedance characteristic of the alternator permits the l... | 02/20/2007 |
| 7176590 | Spiral linear motor A motor producing a rectilinear drive force can be simultaneously provided with a small size and a lightweight, high accuracy and a large drive force. In a spiral linear motor 1, a rotator 3 and stator 2 are both constituted having a spir... | 02/13/2007 |
| 7173357 | Axial gap type dynamo-electric machine There is provided an axial gap type rotating electric machine which is small-sized and achieves a high motor efficiency as a drive source having a high torque using, for example, a strong magnet by reducing an energy loss by an induced current. An axial gap t... | 02/06/2007 |
| 7170255 | Feedforward controller for synchronous reluctance machines The present invention provides an electro-mechanical energy exchange system with a variable speed synchronous reluctance motor-generator having an all-metal rotor. A bi-directional AC-to-DC electric power converter interconnects the motor-generator with a DC bus. Fi... | 01/30/2007 |
| 7170207 | Motpor device capable of reducing cogging torque A motor device capable of reducing cogging torque includes a stator assembly and a rotor assembly, which is movably disposed in the stator assembly. The rotor assembly provides a magnetic component. The stator assembly further includes an insulation frame part, a se... | 01/30/2007 |
| 7168158 | Stacked core assembly apparatus The stacked core assembly apparatus, which can perform assembly at a high speed while keeping strength of an angle indexing apparatus, comprises a press machine 1, a non-synchronous transmitting apparatus 10 and an angle indexing apparatus 7. Th... | 01/30/2007 |
| 7166984 | Signaling and reduced torque ripple in brushless repulsion motors Brushless repulsion motors are presented, in which rotor coils switching signal detectors are selectively located in spaced angular relationship on the rotor and signaling sources are distributed around all or most of the stator circumference to allow looser toleran... | 01/23/2007 |
| 7164218 | Electric motor and electric type compressor An electric motor includes a housing and a circular stator. The housing has an inner circumferential surface. The housing also has a first predetermined thermal expansion coefficient. The housing further has an elastic part. The stator core is pressed to an inside o... | 01/16/2007 |
| 7164220 | Stator pole structure for an electrical machine An electrical machine, such as a transverse flux motor, incorporates a stator core assembly 1. The stator core assembly 1 comprises a stator frame 4 upon which stator cores 2,3 are located with spacer elements 7 therebetween. A num... | 01/16/2007 |
| 7161271 | Motor for washing machine A motor for a washing machine includes a stator core having one or more bolt thru holes. A stator assembly having the stator core is directly coupled to a bearing housing using the bolt thru holes. ... | 01/09/2007 |
| 7159296 | Coil-winding machine stator installation jig A stator stack and stator jig assembly provide a consistent amount of slack in stator coil wires without increasing the complexity of coil-winding machines or adding production steps, and prevent crossing of the stator coil wires in the slack areas. A stator stack h... | 01/09/2007 |
| 7157820 | Resolver Plurality of air gaps are formed in a torus-shaped stator body of the resolver. If a straight line were drawn from a center point of the stator body toward the outside in the radial direction of the stator body and the straight line were rotated 360 degrees about th... | 01/02/2007 |
| 7157829 | Axial flux permanent magnet generator/motor The present invention is related to a permanent magnet electrical generator/motor comprising a stator, a rotor, a rotational axis and an air gap between stator and rotor so that the magnetic flux across said air gap is essentially oriented along said rotational axis... | 01/02/2007 |
| 7157814 | Stator for reciprocating motor and manufacturing method thereof Disclosed are a stator for a reciprocating motor and a manufacturing method thereof which are able to simplify assembling processes, to reduce assembling time, and thereby to improve productivity by laminating an inner stator to be a straight line shape and bending ... | 01/02/2007 |
| 7154204 | Magnetic return path and permanent-magnet fixing of a rotor A rotor for an electric motor having a short-circuit element that has lamination packets in which the laminations of the short-circuit element are embodied with spring elements which press from two sides against permanent magnets of the rotor and as a result center ... | 12/26/2006 |
| 7154200 | Motor A motor has a stator substantially encapsulated within a body of thermoplastic material; and one or more solid parts used in the motor either within or near the body. The thermoplastic material has a coefficient of linear thermal expansion such that the thermoplasti... | 12/26/2006 |
| 7154191 | Electrical machine with double-sided rotor Machines useful for wind turbine and ship propulsion purposes include a double-sided generator or motor with two concentric air gaps. In one embodiment, the machine includes a double-sided rotor with an inner rotor side and an outer rotor side; and a stator with an ... | 12/26/2006 |
| 7154192 | Electrical machine with double-sided lamination stack The machine includes a rotor with an inner rotor core and an outer rotor core and a double-sided stator with an inner stator side and an outer stator side. The double-sided stator is concentrically disposed between the inner rotor core and the outer rotor core of th... | 12/26/2006 |
| 7151335 | Permanent magnet rotating electric machine and electric car using the same A permanent magnet rotating electric machine comprises a stator having stator windings wound round a stator iron core and a permanent magnet rotor having a plurality of inserted permanent magnets in which the polarity is alternately arranged in the peripheral direct... | 12/19/2006 |
| 7151359 | Variable reluctance generator A variable reluctance generator has phase windings and a bias winding. By controlling the excitation produced by the bias winding, the speed of the machine or the DC link, a power converter using only diodes can supply power to a DC bus. A method of operating a vari... | 12/19/2006 |
| 7151336 | Rotor of reluctance motor A plurality of projections are provided abutted with an outer circumference of a columnar axis inserted to an inner circumference of a rotor. The projections are provided in the direction of a magnetic pole in the rotor. When the rotor is fixed to the columnar axis,... | 12/19/2006 |
| 7148782 | Magnetic core for stationary electromagnetic devices An energizable magnetic core for use in an inductor or a transformer includes a plurality of legs extending from the back yoke. The back yoke is formed in a loop arranged to provide a magnetic circuit. Each of the plurality of legs have a first end adjacent to the b... | 12/12/2006 |
| 7145280 | Stator for a dynamoelectric machine having a split ferromagnetic core A method and apparatus for production of stator windings for dynamoelectric mechines of different configurations is provided. The windings are preferably formed on a bobbin (10) or similar article, which may then be transferred onto an appropriate carrier suc... | 12/05/2006 |
| 7144468 | Method of constructing a unitary amorphous metal component for an electric machine A unitary amorphous metal magnetic component for an axial flux electric machine such as a motor or generator is formed from a spirally wound annular cylinder of ferromagnetic amorphous metal strips. The cylinder is adhesively bonded and provided with a plurality of ... | 12/05/2006 |
| 7141905 | Permanent magnet synchronous machine A permanent magnet synchronous machine includes a stator, and a rotor which defines with the stator an air gap. The stator includes a plurality of teeth which are disposed in spaced-apart circumferential relationship and separated from one another by a tooth pitch. ... | 11/28/2006 |
| 7141908 | Rotating electrical machine In a rotating electrical machine a stator winding is formed of flexible cables inserted in an open stator in the stator core. The stator slots extend from a radially outermost yoke part of the stator core radially inwards towards the rotor, the stator slots being se... | 11/28/2006 |
| 7138742 | Rotating machine In a rotating machine, a plurality of laminated electromagnetic steel sheets constitutes at least one of a stator and a rotor and a plurality of permanent joining portions to unit each of the laminated electromagnetic steel sheets to form a corresponding one of the ... | 11/21/2006 |
| 7138741 | Stator of outer rotor type motor for drum type washing machine The present invention provides an outer rotor type motor for a drum type washing machine to reduce material and weight for fabrication, simplify fabrication process, provide stable assembly of a stator to a fixing side, such as a tub or a bearing housing, prevent un... | 11/21/2006 |
| 7135802 | Claw pole motor stator A claw pole motor stator includes teeth for N phases (N being a natural number of 3 or more), for example, U-phase, V-phase, and W-phase teeth juxtaposed in an axial direction, return paths for interconnecting the U-phase, V-phase, and W-phase teeth, and (N−1) ann... | 11/14/2006 |
| 7135800 | Axial gap electronic motor An axial gap electronic motor includes a stator having a plurality of poles, and a rotor. Each pole is formed of a stator iron core made of a magnet body and a coil wound therearound. The rotor has a plurality of poles formed of permanent magnet and arranged along a... | 11/14/2006 |
| 7135947 | Hybrid microwave T-switch actuator A hybrid switch actuator having six positions that are stable in the absence of current and in which displacement occurs between an initial position and a target position under the action of a current. The actuator includes a stator and a rotationally moveable rotor... | 11/14/2006 |
| 7132773 | Brushless direct current motor A direct current motor having a stator that has a plurality of radially arranged stator pole bridges to each of which one phase is allocated, at least one stator pole group being formed by at least two adjoining stator poles which are associated with the same phase,... | 11/07/2006 |
| 7132775 | Stator of dynamoelectric machine and method for manufacturing stator winding The present invention provides a dynamoelectric stator and a method for the manufacture thereof enabling electrical insulation properties to be improved by forming slot-housed portions with a racetrack-shaped cross section to suppress damage to an electrically-insul... | 11/07/2006 |
| 7129614 | Strip-shaped lamina and laminated stator core for an electric machine A strip-shaped lamella (10) for a stator (30) of an electric machine, having a yoke region (12) and a number of first teeth (18) that are of one piece with the yoke region (12) on a first side (14) and have first grooves ( | 10/31/2006 |
| 7129608 | Inner rotor electric motor The present invention provides an inner rotor electric motor, in which the stator core is divided into a plurality of stator segments extending in an axial direction which are accommodated in corresponding stator casing segments. The stator segments are preferably c... | 10/31/2006 |
