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| Number | Title | Issue Date |
| 7453180 | Rotary disk energy storage and pulse power supply A system for generating an electrical current in a circuit includes a rotor, a stator and a motor for rotating the rotor about a rotation axis. A plurality of permanent magnets are mounted on the rotor and radially distanced from the rotation axis. With this structu... | 11/18/2008 |
| 7402932 | Apparatus and system for driving a fan using a linear induction motor The present invention provides a system and apparatus that includes an induction motor and/or a fan assembly. The motor includes a housing having an aperture and a shaft axially disposed within the housing and having an end extending through the aperture. The motor ... | 07/22/2008 |
| 7372182 | Axial gap alternator associated with a flywheel An axial gap alternator comprises a first carrier associated with or secured to an output shaft of an internal combustion engine. A first carrier carries a first set of magnets arranged radially about a rotational axis. A second carrier carries a second set of magne... | 05/13/2008 |
| 7355311 | Rotor of axial gap motor and method of producing same A rotor of an axial gap motor has a circular rotor core. A circular frame member is put on one axial face of the circular rotor core. The frame member has a plurality of magnet receiving recesses that are circularly arranged about the axis of the circular frame memb... | 04/08/2008 |
| 7291956 | Laminate coil and brushless motor using same A laminate coil for an integral n-phase motor (n is a natural number of 2 or more) having pluralities of coil poles formed by patterned conductor coils formed in a laminate constituted by pluralities of insulating layers, the laminate coil comprising input and outpu... | 11/06/2007 |
| 7232292 | Integrated motorized pump An integrated motorized pump (1) comprising an impeller (2) mounted on an axle (3), two magnetic drives (6) electromagnetically coupled to an electric motor (7), a casing (8) with a flowing space (9), an inlet channel... | 06/19/2007 |
| 7218025 | Rotational magnetic electrical generating device A rotational magnetic electrical generating device produces an alternating electrical current generated by a central rotational magnetic cylinder with an inner cavity having an central fixed coil operated by a DC current providing a driving rotational force upon a p... | 05/15/2007 |
| 7187098 | Axial gap rotating electrical machine An axial gap rotating electrical machine is provided with permanent magnets and cores in a rotor. The permanent magnets are oriented such that magnetization surfaces face in the circumferential direction of the rotor. The cores are arranged alternately with the perm... | 03/06/2007 |
| 7173353 | Integrated blower for cooling device An integrated blower for cooling device comprises an electric drive with at least one set of a flat stator and a magnetized rotor, a casing with an inlet and an outlet, and radial impeller. The flat stator integrated with the casing thus the flat stator serves as at... | 02/06/2007 |
| 7136262 | Pivot assembly preloaded by laser welding for hard disk drive use A pivot assembly for use in a hard disk drive, in which ball bearings are placed at both ends of a shaft, and a spacer is disposed between outer rings of the ball bearings. The spacer is fixed to the outer rings by laser welding. ... | 11/14/2006 |
| 7109625 | Conductor optimized axial field rotary energy device The present invention provides an axial rotary energy device which is arranged in a multi-phase electric current configuration. The device includes a rotor having a plurality of permanent magnet poles secured thereto and further includes a stator formed by stacking ... | 09/19/2006 |
| 7105979 | Compact heteropolar hybrid alternator-motor A brushless hybrid electrical machine for converting between electrical and mechanical energy has a rotor supported for rotation about an axis of rotation relative to a juxtaposed stator that is stationary and magnetically interacts with the rotor. The rotor include... | 09/12/2006 |
| 7071587 | Integrated cooler for electronic devices An integrated cooler for electronic devices comprises a heat exchange element, a heat transferring element and a blower with an electric drive. The heat exchange element comprises a base and heat exchanging means. The electronic device directly thermally connected w... | 07/04/2006 |
| 7049722 | Motor core construction An electrical machine has a core that includes stranded magnetically permeable material. The core is elongated to thereby define a lengthwise direction and a profile that is transverse to the lengthwise direction. Coils are wound about the core profile and sequentia... | 05/23/2006 |
| 7045983 | System for controlling motor speed by altering magnetic field of the motor The present invention provides a system for controlling the speed of a motor by altering the magnetic field of the motor. The system includes field modification module, and a motor having field windings and a rotor. The field windings are configured to receive a dri... | 05/16/2006 |
| 7042109 | Wind turbine A wind turbine for generating electrical power from wind energy includes a turbine rotor mounted for rotation in wind, and having multiple blades for converting energy in the wind into rotational energy. A generator is coupled with said turbine rotor such that said ... | 05/09/2006 |
| 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 |
| 6952068 | Fabricated components of transverse flux electric motors Transverse flux electric motors are made using a unique process where individual components are premade and then assembled together. A stator portion is made by nesting a coil between two stator core portions. The stator core portions are made from laminations or si... | 10/04/2005 |
| 6946766 | Permanent magnet machine An interior permanent magnet machine including a rotor stack defining at least two adjacent magnet retention slots and a plurality of permanent magnets positioned within the interior of the rotor, wherein the radial thickness of the rotor that is above a given magne... | 09/20/2005 |
| 6943473 | Electric rotating machine An electric rotating machine including a casing, two disk-shaped rotors arranged in concentric relation to each other within the casing, and a stator disposed concentrically with the rotors within the casing. The rotors include magnets, respectively. The magnet of o... | 09/13/2005 |
| 6940200 | Electric drive The invention refers to magnetoelectric machines and comprises a rotor made in the form of at least two disks, the magnetized disks have circumferential arrayed like poles and an axially magnetized polygon or cylindrical magnet placed between the disks. The stator c... | 09/06/2005 |
| 6935611 | Motor control device for flow control device A motor control device for a flow control device includes an opening part through which an upstream side of a fluid flow passage is in communication with a downstream side of the fluid flow passage, a valve element that controls a flow of a fluid which passes throug... | 08/30/2005 |
| 6930426 | Alternator stator having a multiple filar construction to improve convective cooling A stator for a dynamoelectric machine improves the cooling of the stator winding without increasing the size of the stator winding or the entire stator. The stator is of a unique construction wherein the size, and more specifically the cross sectional area or volume... | 08/16/2005 |
| 6930422 | Multi-stage motor An electrical machine includes first and second magnetically permeable parallel cores. Each core is elongated to thereby define a lengthwise direction and first and second core profiles transverse to the lengthwise direction. First coils are wound about the first co... | 08/16/2005 |
| 6894412 | Electric motor An electric motor includes: a stator having a plurality of first coils with a rotor receiving part formed inside thereof and generating a rotating magnetic field and a plurality of second coils making a pair with the first coils and generating an induction magnetic ... | 05/17/2005 |
| 6891295 | Flywheel magneto generator A flywheel magneto generator which comprises a rotor having a magnet attached to an outer circumferential side of a flywheel and a stator constructed by winding a generating coil around a core having a magnetic pole portion opposed to a magnetic pole of the rotor, w... | 05/10/2005 |
| 6727632 | Flat rotary electric machine A flat rotary electric machine to be mounted in a vehicle engine includes an annular stator core with a plurality of teeth and an armature winding and a field unit including a gutter-like field core having a pair of coaxial cylindrical core members. A plurality of p... | 04/27/2004 |
| 6724115 | High electrical and mechanical response structure of motor-generator An AC motor-generator includes a rotor made up of a first inductor core and a second inductor core arrayed in an axial direction of a rotary shaft. A plurality of permanent magnets are arrayed at an interval of 2π in electrical angle of an armature away from each o... | 04/20/2004 |
| 6707207 | High bandwidth track following actuator for hard disk drives A motor for incorporation in an actuator pivot includes a coil disk, an upper magnet-yoke disk, and a lower magnet-yoke disk. The coil disk is attached to the pivot shaft to form a shaft-coil assembly. The coil disk includes a plurality of coils, each placed orthogo... | 03/16/2004 |
| 6707208 | Flux diode motor An electric motor utilizing permanent magnets, wherein the permanent magnets produce a flux circuit in a first direction and shunt elements whereby the magnets and shunt elements rotate relative to each other wherein the shunt elements sequentially interrupt the mag... | 03/16/2004 |
| 6700781 | Heat-dissipating module for removing heat generated from heat-generating device A heat-dissipating module includes a lower housing, a first magnet portion, a second magnet portion and a circuit board. The lower housing is made of a highly thermal conductive material. The upper housing has an opening in the center thereof, wherein whe... | 03/02/2004 |
| 6664692 | Electrical machine A slow moving electrical machine includes an annular set of windings on iron cores of laminated sheets or pressed iron powder, and a corresponding annular set of permanent magnets, the windings being concentrated, and the iron cores having windings being ... | 12/16/2003 |
| 6590312 | Rotary electric machine having a permanent magnet stator and permanent magnet rotor A rotary electric machine for a hybrid vehicle includes a rotor connected between a vehicle engine and a torque transmission mechanism at the back of the vehicle engine and a stator. The rotor includes an outer rotor portion having an inner surface electr... | 07/08/2003 |
| 6515390 | Electric drive apparatus with a rotor having two magnetizied disks The invention refers to magnetoelectric machines. It can be used when manufacturing different-purpose electric drives--for instance, in fans, compressors, electromobile's wheels, and so forth. It comprises a rotor made in the form of two disks, the teeth ... | 02/04/2003 |
| 6455969 | Multiple layer double rotor single stator skew symmetry permanent magnet rotating motor A single-stator-double-rotor rotating motor has one upper-layer rotor, one intermediate-layer armature and one lower-layer rotor. The upper-layer rotor and lower-layer rotor are embedded with the same number of magnets to form a magneto type magnetic pole... | 09/24/2002 |
| 6445105 | Axial flux machine and method of fabrication An axial flux machine includes a rotatable shaft; at least one rotor disk coupled to the rotatable shaft; at least one permanent magnet supported by the at least one rotor disk; at least one stator extension positioned in parallel with the at least one ro... | 09/03/2002 |
| 6232690 | Electronically commutated DC A DC motor has a housing having an air gap and a stator coil is positioned in the air gap. First and second permanent magnet rotors are coaxially arranged to one another in the housing on opposite sides of the air gap. The first and second permanent magne... | 05/15/2001 |
| 6232696 | Vacuum generating apparatus with multiple rotors A vacuum generating apparatus for a vacuum cleaner is provided, in which an axial type coreless brushless direct-current (DC) motor is implemented in the form of a rotor-impeller integration structure. The vacuum generating apparatus includes an axial typ... | 05/15/2001 |
| 6124649 | Micro-generator module and clockwork movement containing such a micro-generator Micro-generator for a clockwork movement. It contains a rotor provided with two disks and a stator with three coils connected in series. Each disk is provided with six permanent magnets with alternating north-south polarity. The coils are mounted on a mod... | 09/26/2000 |
| 6100620 | High frequency synchronous rotary electrical machine A synchronous rotary electrical machine. According to the first aspect of the present invention, the electrical phase difference between the stator teeth and the nearest rotor teeth is a stepwise function of azimuthal stator tooth position. In a preferred... | 08/08/2000 |
