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| Number | Title | Issue Date |
| 7012350 | Segmented stator switched reluctance machine A switched reluctance machine includes a stator with a plurality of circumferentially-spaced stator segment assemblies that include salient stator poles and inter-polar stator slots. Each of the stator segment assemblies includes a stack of stator plates forming a s... | 03/14/2006 |
| 7009387 | Tranducer of angular quantities for a cycle A transducer comprising a fixed part and a mobile part which are mounted for relative motion about a given axis. On the shaft of the rotor part there is fitted a magnetized element consisting, for example, of an annular element diametrically magnetized at a single p... | 03/07/2006 |
| 7005771 | Variable reluctance resolver A variable reluctance resolver is provided with an output winding having a reduced effect from externally introduced leakage magnetic flux. A variable reluctance resolver is provided with a resolver excitation winding and a resolver output winding wrapped around mul... | 02/28/2006 |
| 7002280 | Claw-pole dynamo with radially offset yoke arms A claw-pole dynamo comprises a permanent magnet, a coil, and a yoke surrounding the coil. The yoke comprises a plurality of first yoke arms disposed on a first axial side of the coil and a plurality of second yoke arms disposed on a second axial side of the coil. Ea... | 02/21/2006 |
| 7002267 | Method and apparatus for cooling a hybrid transmission electric motor The present invention is drawn to a method and apparatus for cooling a hybrid transmission electric motor. More precisely, an annular chamber is formed between a housing for the electric motor and a transmission housing. Coolant is disposed in the annular chamber an... | 02/21/2006 |
| 7002277 | Motor and motor manufacturing apparatus Flat rolled magnetic steel sheets and strip or a die is turned in the press forming process. Rotor cores are stacked with turning through an angle which is an odd number multiple of about (360°/(number of slots in the motor×natural number n×2)) and stator cores a... | 02/21/2006 |
| 7002275 | Electric motor, particularly an electronically commutated direct current motor An electric motor, particularly an electronically commutated direct current motor, has a stator and a rotor. The stator and the rotor are arranged coaxially to a longitudinal axis of the electric motor. The stator features a plurality of electrical stator poles and ... | 02/21/2006 |
| 6998751 | High reliability electric drive An electric drive comprising a stator with at least two ring-shaped windings and controllers, and a magnetized rotor with an axis of rotation. Each of said windings comprises at least one coil layer with circumferentially arrayed coils located around said axis, and ... | 02/14/2006 |
| 6998755 | Electronically-commutated electric motor comprising coils with parallel axes The invention relates to an electronically commutated electric motor having a multi-pole magnetized permanent magnet, a plurality of flux guide units each of which features at least one flux collector section and one flux concentrator section, whereby each flux guid... | 02/14/2006 |
| 6995494 | Axial gap brushless DC motor A dual stator axial gap DC brushless machine is provided with first and second stators having equal pole counts, a given pole arc, and a given slot arc. A rotor is disposed between the first and second stators, having a pole count greater than the first and second s... | 02/07/2006 |
| 6995492 | Electric rotary machine equipped with stator coil consisting of sequentially connected conductor segments Three partial coils are accommodated in inphase slots arranged successively in the circumferential direction and also accommodated in the same conductor accommodation position set. Each layer coil is constituted by serially connecting these partial coils. Respective... | 02/07/2006 |
| 6992413 | Bicycle hub dynamo with a freewheel A bicycle hub dynamo comprises a hub spindle adapted to be mounted to a frame of the bicycle; a hub body disposed around the hub spindle, wherein the hub body has a pair of axially spaced hub flanges; a plurality of bearings disposed between the hub body and the hub... | 01/31/2006 |
| 6992417 | Bobbin for armature of rotary electrical machine An insulator for an armature wherein the insulator is formed with a slot at one end of the teeth on which the coils are wound to trap the end coil to prevent its axial slippage as the coil end is drawn out. ... | 01/31/2006 |
| 6989620 | Electric motor The invention relates to an electric motor, in particular for high speed operation, comprising a motor housing (4); inside the housing (4), a stator (2) having a core (8) and windings (9) toroidally wound on the core (8); an... | 01/24/2006 |
| 6986647 | Pump design for circulating supercritical carbon dioxide In accordance with an embodiment of the present invention, a pump assembly for circulating a supercritical fluid is disclosed. The pump assembly comprises an impeller for pumping fluid between a pump inlet and a pump outlet; a rotating pump shaft coupled to the impe... | 01/17/2006 |
| 6984914 | Motor having characteristic structure in armature and disc apparatus The invention provides a motor which can reduce a generation of a cogging, has a thin size, and can generate a strong torque. In a motor having an armature including a back yoke formed in a cylindrical shape and a wound coil and a magnet formed in a cylindrical shap... | 01/10/2006 |
| 6984909 | Motor In a permanent magnet-embedded, concentrated winding motor, plurality of stator teeth are divided into, for example, three groups that include a plurality of adjacent stator teeth having coils wound around and that are provided with voltage in phase that are set as ... | 01/10/2006 |
| 6982513 | Recording disk drive motor, recording disk drive employing the motor, a method of manufacturing a stator used in the recording disk drive motor, and core plate that is used in the manufacture of the stator A recording disk drive motor is disclosed which is employed in a recording disk drive that retains a removable recording disk that has a diameter of 30 mm or less, as well as a method of manufacturing a stator core used in the same. The core back of the stator core ... | 01/03/2006 |
| 6981807 | Electromagnetic drive device and light quantity adjustment device using the same An electromagnetic drive device includes a coil frame with a hollow tubular shape, a magnet rotor disposed in the coil frame to be rotatable through a rotational shaft, a transmission arm attached to the rotational shaft for outputting a rotation of the magnet rotor... | 01/03/2006 |
| 6979918 | Actuator An actuator according to the present invention includes: a rotor that includes a magnet that has a cylindrical shape, and an outer peripheral surface alternately magnetized into different poles in a peripheral direction, and a soft magnetic member that is fixed to a... | 12/27/2005 |
| 6979917 | Permanent-magnetically excited electrical motor A permanent-magnetically excited electric machine comprising a stator part (2) and a moving part (30) movable relative to the stator part (2), as well as an air gap (8) between the stator part (2) and the moving part (30), w... | 12/27/2005 |
| 6979930 | Stator for an automotive alternator A stator core is constructed by laminating and integrating first and second core divisions with the press punch directions thereof facing each other, each core division being constructed by winding a single strip of magnetic steel sheet into a helical shape with the... | 12/27/2005 |
| 6979931 | Spindle motor having spindle motor stator with laminate layers for increased head stack assembly access A spindle motor for use in a disk drive having a rotatable head stack assembly. The spindle motor has a spindle motor hub. The spindle motor further has a magnet radially attached about the spindle motor hub. The spindle motor further has a spindle motor stator. The... | 12/27/2005 |
| 6979924 | Compressor using a motor The invention relates to a motor comprising a stator core having plural teeth and slots provided among the teeth, a winding applied on the teeth by a single turn, and a rotor incorporating plural permanent magnets, which is rotated and driven by utilizing reluctance... | 12/27/2005 |
| 6979927 | Automotive alternating-current dynamoelectric machine Slots are formed at a nonuniform pitch at a ratio of two slots per phase per pole. An X-phase winding phase portion constituting a stator winding is constructed by connecting in series an a-phase winding phase sub-portion and a d-phase winding phase sub-portion havi... | 12/27/2005 |
| 6977454 | Hybrid-secondary uncluttered permanent magnet machine and method An electric machine (40) has a stator (43), a permanent magnet rotor (38) with permanent magnets (39) and a magnetic coupling uncluttered rotor (46) for inducing a slip energy current in secondary coils (47). A dc flux can b... | 12/20/2005 |
| 6977455 | Permanent-magnet synchronous electric motor with improved statoric group for circulation pumps of heating and conditioning systems A permanent-magnet synchronous electric motor for circulation pumps of heating/conditioning systems of a uniquely simple construction and improved performance. The motor has a motor casing and a cross-like or star-like monolithic body inside the motor casing. The mo... | 12/20/2005 |
| 6975050 | Brushless DC motor A system and method for reducing the cost of producing a brushless DC motor is presented. The brushless DC motor provides higher power density and efficiency with an increased tool run time. The brushless DC motor includes a rotor assembly that has an unmagnetized p... | 12/13/2005 |
| 6975057 | Rotary electric machine having a stator made up of sectors assembled together The invention relates to a rotary electric machine including a stator, powered by a polyphase current, having a magnetic circuit with teeth forming intervening slots for receiving electrical conductors. The magnetic circuit is made up of an assembly of sectors defin... | 12/13/2005 |
| 6975049 | Electrical machine and method of manufacturing the same An electrical machine including a rotor and a stator. The stator includes a core and a coil disposed on the core. In one construction, the core is generally U-shaped and comprises magnetic material. The electrical machine also includes a bridge comprising magnetic m... | 12/13/2005 |
| 6975044 | Generator A generator is provided comprising a driving shaft (1) rotated by an external driving force, a first rotator disk (5L) mounted to the driving shaft (1) and having a magnetic pole face thereof provided with N poles and S poles of permanent magnet... | 12/13/2005 |
| 6974522 | Method and apparatus for mounting a plurality of magnet segments on a back ring A method and apparatus for assembling permanent magnet segments and a back ring wherein a fixture holds segments in circumaxially spaced relationship, adhesive is applied to the segments, externally from pressure sensitive adhesive tape and the fixture then expands ... | 12/13/2005 |
| 6975056 | Stator A stator which includes an insulating bobbin which is fitted upon a tooth. The insulating bobbin includes a tooth insulating portion which insulates between the tooth and a rectangular wire, and a first extending portion and a second extending portion which extend f... | 12/13/2005 |
| 6972503 | Brushless motor A brushless motor A includes a permanent magnet used as a rotor 1 that is driven by three-phase power supply, wherein the permanent magnet is magnetized by a trapezoidal magnetization, and the trapezoidal magnetization is applied such that a generation period... | 12/06/2005 |
| 6968707 | Variable speed, electronically controlled, room air conditioner A variable speed air handling system for cooling and/or heating a room and a method of controlling the system. The system includes a fan assembly to transport air from the system into the room, the fan assembly having a substantially continuously adjustable speed wi... | 11/29/2005 |
| 6967554 | Coil for a rotary electric machine A coil for an electric rotary machine includes a substantially flat bundle of insulated wires wound around a winding axis so as to form a plurality of superposed turns, the cross-section of the bundle in the superposed turns having a long dimension that extends subs... | 11/22/2005 |
| 6967424 | Rotor assembly and stator assembly for an electrical machine The present invention relates to a rotor assembly for an electrical machine, comprising: a rotor body of generally cylindrical shape having a substantially cylindrical surface configured for facing an air-gap between the rotor assembly and a stator of the electrical... | 11/22/2005 |
| 6967425 | Multi-functional electric stepper motor assembly having increased motor torque An electric stepper motor having increased motor torque includes a thru-hole, a rotor and a stator. The thru-hole allows use with a chamber and provides transport of hardware and elements into the chamber. A first and second pair of rotor cups separated by a non-mag... | 11/22/2005 |
| 6965174 | Method for operating a wind turbine The present invention relates to a method for operating a wind turbine with an electrical generator, drivable by a rotor, for supplying electrical power to an electric grid, in particular to the loads connected thereto. The object of the present invention is to defi... | 11/15/2005 |
| 6965183 | Architecture for electric machine The invention includes an electric machine having a rotor, stator and at least one winding in the stator adapted to conduct a current, and a secondary winding, electrically isolated from the first winding and inductively coupled to the first winding, which may be us... | 11/15/2005 |
