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| Number | Title | Issue Date |
| 8188633 | Integrated composite electromechanical machines Embodiments of the present invention include a composite electromechanical machine which can operate as a motor or a generator (including dynamo or alternator). In an aspect, the present composite electromechanical machine comprises at least double-sided magnetic pl... | 05/29/2012 |
| 8179016 | Motor and compressor A motor includes a rotating shaft, a rotor fixed to the rotating shaft and first and second stators facing each other on opposite axial sides of the rotor with a gap in between. Each of the first and second stators includes a back yoke, teeth circumferentially arran... | 05/15/2012 |
| 8115364 | Permanent magnet generator and wind power generator having a multi-stage rotor and stator A permanent magnet power generator which, when used at an electric power generating facility such as a wind power plant, etc., would not be bulky and would not impede wind capture by a wind turbine; instead, it can raise the generated voltage without impeding wind c... | 02/14/2012 |
| 8106563 | Polyphasic multi-coil electric device A polyphasic multi-coil generator includes a driveshaft, at least first and second rotors rigidly mounted on the driveshaft so as to simultaneously synchronously rotate with rotation of the driveshaft, and at least one stator sandwiched between the first and second ... | 01/31/2012 |
| 8102095 | Electrical direct drive for a roller An electrical roller drive which can be connected to a roller includes a disk-type motor with a secondary part in the form of a disk and with a primary part in the form of a disk. ... | 01/24/2012 |
| 8022593 | Electrical machine An axial flux electrical machine is provided. The machine includes a plurality of rotors, each sandwiched between a respective pair of stator parts. The plurality of rotors, together with their respective stators, are axially-stacked to form a multistage machine. He... | 09/20/2011 |
| 7973446 | Electrical devices having tape wound core laminate rotor or stator elements Electrical output generating devices and driven electrical devices having tape wound core laminate rotor or stator elements. The tape wound core portions enhance magnetic flux and may be shaped and cut to receive magnet and/or flux conducting portions in correspondi... | 07/05/2011 |
| 7906886 | Axial motor The present invention relates to an axial motor, and more specifically, to an axial motor which has a simple structure and is easily assembled by inserting and holding core teeth in core teeth insertion holes circularly arranged on a yoke. The axial motor according ... | 03/15/2011 |
| 7872393 | Axial gap type superconducting motor Stators 12 and 13 are disposed with required air gaps in an axial direction of a rotor 11 so as to face each other, a plurality of field bodies 15 or permanent magnets 33 are disposed in the rotor 11, and a plurality of arma... | 01/18/2011 |
| 7868514 | Plural rotor permanent magnet electric motor with coincident electromagnetic axis An electric motor having a first rotor, a second rotor and a third rotor, a first permanent magnet, a second permanent magnet and a third permanent magnet, a first stator and a second stator, a first electromagnet and a second an electromagnet with one end of the co... | 01/11/2011 |
| 7804220 | Direct cranking electric rotary machine for vehicle In a direct cranking electric rotary machine as an axial air-gap motor having an improved configuration mounted on a vehicle, a stator is faced to an end part on a surface of a rotor. The rotor also acts as a flywheel for an engine mounted on the vehicle. The length... | 09/28/2010 |
| 7800277 | Engine with attached axial gap type rotating electric machine A vehicle drive unit includes a crank case with a crank shaft operatively disposed therein and an attached axial gap type rotating machine. The crank shaft is driven via internal combustion to rotate about a center axis. The axial gap type rotating machine includes ... | 09/21/2010 |
| 7791246 | Axial motor An axial motor includes an armature side stator (13), a pair of rotors, and a pair of stators, which are arranged with gaps left therebetween in the axial direction of a drive shaft (34). The armature side stator (13) includes armature coils ( | 09/07/2010 |
| 7777391 | Armature, motor and compressor and methods of manufacturing the same An armature including magnetic cores arranged on a surface of a plate, coils provided around the magnetic cores, and a magnetic material plate having a plurality of first magnetic members is characterized in that the magnetic material plate is attached to a surface ... | 08/17/2010 |
| 7750531 | Direct drive motor in washing machine A direct drive motor in a washing machine includes a stator having a winding portion with coils wound thereon, a rotor having a sidewall, and a rear wall with a pass through hole at a center, and fastening pass through holes around the pass through hole, an annular ... | 07/06/2010 |
| 7732973 | Electromagnetic machine with magnetic gap channels An electromagnetic machine has a moving component, a stationary component, and a support component coupling the moving and stationary components in physical and electromagnetic proximity. The stationary component is a wound coil of insulated, electrically conductive... | 06/08/2010 |
| 7714478 | Electric rotary machine In an electric rotary machine, a stator, a metallic supporting member configured to support the stator, and a rotor are provided, the rotor is relatively rotatably supported with respect to the stator, a magnetic path is formed via a gap portion between the stator a... | 05/11/2010 |
| 7714479 | Segmented composite rotor A composite rotor for an axial airgap, permanent magnet dynamoelectric machine comprises a plurality of magnet subassemblies adhesively bonded together to form the rotor. Each magnet subassembly comprises a rotor permanent magnet and an optional spacer. A fibrous be... | 05/11/2010 |
| 7679260 | Axial gap motor An axial gap motor including a rotor and stators, wherein: the rotor is provided with a plurality of primary magnet portions, a plurality of auxiliary magnet portions, and a rotor frame; the rotor frame is provided with a plurality of ribs that extend in the radial ... | 03/16/2010 |
| 7667368 | Axial air-gap electronic motor In an axial air-gap electronic motor in which a stator is formed by a plurality of core members, the manpower for assembling the core member is reduced, and the motor is assembled in a shorter period of time. A hook portion 320, which is a first connecting me... | 02/23/2010 |
| 7646132 | Arcuate coil winding and assembly for axial gap electro-dynamo machines (EDM) An axial gap EDM deploys as a stator coils a series of two parallel serpentine windings that each circumscribe an arc segment of a circle. Each arc segment that forms the stator winding assembly is powered as a separate phase. The two winding are readily formed by s... | 01/12/2010 |
| 7629724 | Axial air-gap electronic motor An axial air-gap electronic motor is arranged such that a teeth surface of a stator and a magnet surface of a rotor are arranged opposedly with a predetermined gap therebetween along an axis line direction of an output shaft of the rotor. The rotor has a rotor back ... | 12/08/2009 |
| 7579744 | Rotor structure of an axial gap rotating electrical device An axial gap rotating electrical device includes a stator and a rotor. The stator has a stator core and a stator coil. The rotor is disposed in an axial direction with respect to the stator. The rotor includes a plurality of separate rotor components circumferential... | 08/25/2009 |
| 7573176 | Dynamo-electric machine In a dynamo-electric machine having two rotors, at least one of the rotors is constructed to have a first magnetic path that extends in a circumferential direction of the rotor, at least one of the rotors is constructed to have a second magnetic path that extends in... | 08/11/2009 |
| 7550894 | Rotary electrical machine A rotary electrical machine has a mechanism capable of varying an output characteristic, without increasing mechanical loss, or without consuming the electric power that does not contribute to increasing torque. The rotary electrical machine has a rotor with N pole ... | 06/23/2009 |
| 7528521 | Rotary electric machine and electric wheelchair mounted with rotary electric machine A rotary electric machine comprises a stator including a plurality of teeth which are wound up by coils and a stator yoke core connecting the respective teeth, and a rotor provided with magnets disposed so as to oppose to the teeth, respectively, with a space thereb... | 05/05/2009 |
| 7518282 | Rotor, vibration motor having the same, and fabrication method thereof A rotor, vibration motor having the same, and fabrication method thereof are disclosed. A rotor according to an embodiment of the invention comprises a first layer on which are formed a plurality of commutators, a second to an n-th layer—wherein n is 4 or greaterâ... | 04/14/2009 |
| 7514838 | Fan unit using motor equipped with rotor united with fins A fan unit comprises an electric rotary machine (e.g. electric motor) having a rotor and a fin structure unified with the rotor. The fan unit further comprises a rotation mechanism for rotating the rotor. The rotor is formed to have an opening at a central portion t... | 04/07/2009 |
| 7514839 | Stator with a rotary current winding, brushless direct current machine having a stator, shaped part for winding guidance for a stator with a rotary current winding, and winding method for producing a stator with a rotary current winding A method of producing a stator with a rotary current winding, having a first and second face end. On the face end, at least one shaped part with struts for winding guidance is provided. A brushless direct current machine with a stator, a shaped part for winding guid... | 04/07/2009 |
| 7474032 | Simplified fan device having a thin-type structure with a minimum air gap for reducing an axial thickness A simplified fan device includes a base plate, a flat-type impeller, a magnet sheet and a shaft member. The base plate includes an axial hole and at least one stator coil arranged thereon. The flat-type impeller is formed with an annular supporting plate, an assembl... | 01/06/2009 |
| 7471026 | Brushless electric motor A brushless electric motor includes a housing with a pair of disc-shaped end plates fixed relative to the housing in a spaced, generally parallel relationship to each other. A pair of bearings are respectively positioned in the end discs. A motor shaft is rotatably ... | 12/30/2008 |
| 7456541 | Fan device having an ultra thin-type structure with a minimum air gap for reducing an axial thickness A fan device includes a base plate, a flat-type impeller, an assembling member, a magnet sheet and a shaft member. The base plate includes an axial hole and at least one stator coil arranged thereon. The flat-type impeller is formed with an annular supporting plate ... | 11/25/2008 |
| 7436137 | Drive regenerative control system Provided is a drive regenerative control system of a drivee with a motor superior in torque and weight balance and suitable for miniaturization as the drive source. In a drive regenerative control system having a drive source with an electric motor, a drivee, a cont... | 10/14/2008 |
| 7432623 | Brushless electromechanical machine An electromechanical machine having a stator and a rotor, the stator including at least one stator module of N toroid shaped electromagnets, the electromagnets arranged along an arc a predetermined distance apart defining a stator arc length. Each of the electromagn... | 10/07/2008 |
| 7427845 | Segmented switched reluctance electric machine with interdigitated disk-type rotor and stator construction The present invention relates to a unipolar current electrical machine operable as a switched reluctance motor, comprising a motor structure and a control unit. The motor structure comprises a plurality of disk-shaped annular stator elements stacked and spaced equid... | 09/23/2008 |
| 7425772 | Electric power generating system using ring-shaped generators Electric power generator system using ring-shaped generators and essentially being formed of turbines and generators, and optionally converging-diverging nozzles. The turbines may optionally have an open center, and may be of any type, such as axial turbines, reel-s... | 09/16/2008 |
| 7411325 | High efficiency combination motor and drive A brushless permanent magnet motor has a rotor constructed of spaced ferromagnetic backirons and a circumferential array of alternating polarity magnetic poles that drive magnetic flux back and forth across an armature air gap between the backirons. A stator include... | 08/12/2008 |
| 7400069 | Generator having reciprocating and rotating permanent motor magnets A generator for producing electric power includes a drive mechanism, such as a drive motor, having a rotor supported for rotation about an axis. A first generator magnet driveable by the rotor includes a reference pole facing in a first direction. A second generator... | 07/15/2008 |
| 7385330 | Permanent-magnet switched-flux machine A permanent-magnet switched-flux (PMSF) apparatus comprises a plurality of permanent-magnet switched-flux (PMSF) devices, wherein each of the plurality of PMSF devices comprises a ferromagnetic outer rotor coupled to a shaft, wherein the ferromagnetic outer rotor co... | 06/10/2008 |
| 7382077 | Electric motor An electric motor comprises a stator (1, 5, 8) having an air-gap which extends around an axis and in which a rotating magnetic field is generated, and a rotor (11, 12, 13) comprising a shaft (11) which is rotatably held by a bearing (10) ... | 06/03/2008 |
