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| Number | Title | Issue Date |
| 8093776 | 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 ... | 01/10/2012 |
| 7948141 | Electric motor device The electric motor device is provided. The electric motor device includes: a first drive member that has a plurality of permanent magnets; a second drive member that has a plurality of electromagnetic coils; and a clearance controller that shifts at least either one... | 05/24/2011 |
| 7906884 | 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 ... | 03/15/2011 |
| 7893588 | Magnetic electron exciter and methods A magnetic electron exciter includes a rotor adapted to be rotated within a preselected range of rotational speeds, and having a plurality of magnets mounted therein preselected distances from the rotational axis of the rotor. A plurality of coils are positioned adj... | 02/22/2011 |
| 7816833 | Method and device for energy generation A method and device for using radial relative displacement between a magnet and coil to generate electricity from fluid motion. The device includes a support structural component, a movable magnetic structure, a rotating structural component, and bearings. The movab... | 10/19/2010 |
| 7750527 | Motor/generator A motor/generator is basically provided with a stator, a first rotor member and a magnetic resistance changing mechanism. The stator has a plurality of coils configured and arranged to be energized with a composite electrical current to form first and second magneti... | 07/06/2010 |
| 7671503 | Rotating electric machine and electrically driven vehicle A rotating electric machine whose output characteristics can be easily and freely adjusted and varied even in operation. The rotating electric machine is received in a housing of an electrically driven two-wheeled vehicle. A rotating shaft is connected to a rotor so... | 03/02/2010 |
| 7573172 | Magnetic drive apparatus A magnetic drive apparatus, which has a rotor; and a stator having a stator magnetic flux generator, and a stator magnetic guidepath for guiding magnetic flux from the stator magnetic flux generator to the rotor, and which rotationally drives the rotor relative to t... | 08/11/2009 |
| 7567006 | Field controllable rotating electric machine system with flux shunt control In a magnet-exciting rotating electric machine, a magnetic field pole part opposing an armature is composed to be divided into a surface magnetic pole part and a magnetic excitation part so as to be capable of being relatively displaced. The magnetic excitation part... | 07/28/2009 |
| 7468568 | Rotating electric machine and electrically driven vehicle A rotating electric machine whose output characteristics can be easily and freely adjusted and varied even in operation. The rotating electric machine is received in a housing of an electrically driven two-wheeled vehicle. A rotating shaft is connected to a rotor so... | 12/23/2008 |
| 7414343 | Hybrid-excited rotating machine, and vehicle with the hybrid-excited rotating machine A hybrid-excited rotating machine comprising: a stator winding of a multi-phase Y-connection; a plurality of rotor magnetic poles fixed on a rotor shaft 3 at a predetermined spacing in the circumferential direction and confronting the inner circumference of s... | 08/19/2008 |
| 7408278 | Motor-generator with adjustable axial gap for vehicle A rotary electric machine capable of optionally adjusting output characteristic and an electric motor vehicle using the rotary electric machine are provided. A rotary electric machine is constituted with: a rotary shaft 220; a rotor 40 connected... | 08/05/2008 |
| 7402929 | Magnetic motor with magnet assemblies A magnetic motor that includes a plurality of rotor magnet assemblies, a plurality of drive magnet assemblies that are laterally moveable with respect to the rotor magnet assemblies, a timing assembly for generating power pulses selectively supplied to the drive mag... | 07/22/2008 |
| 7385332 | Permanent magnet dynamoelectric machine with axially displaceable permanent magnet rotor assembly A dynamoelectric machine comprises: a stator that comprises a plurality of stator poles arranged around a stator surface of revolution with a stator axis for the stator surface of revolution; at least one rotor that comprises a plurality of permanent rotor magnets a... | 06/10/2008 |
| 7382074 | Alternate current power generator The invention relates to an alternate current power generator with a primary drive shaft having a set of two magnets and an armature and a governor. The governor moves the magnets and armature with respect to one another. In another embodiment, the alternate current... | 06/03/2008 |
| 7362024 | Rotor of BLDC motor Disclosed is a rotor of a BLDC motor including a frame rotatably disposed on an inner circumference of a stator, rotor teeth connected to the outer circumference of the frame in the radial direction at regular intervals, and magnets fixed between the rotor teeth, an... | 04/22/2008 |
| 7358629 | Electromagnetic actuator The rotational torque of an electromagnetic actuator having a stator and rotor, such as a stepping motor, is increased. The electromagnetic actuator includes a rotor (30) having multiple magnetic poles (Nr1, Nr2, Nr3, N... | 04/15/2008 |
| 7350763 | Linear solenoid with adjustable magnetic force A linear solenoid includes a pole tube; a housing jacket that encloses the pole tube; a coil that encompasses the pole tube; and a displaceable armature that is received in the pole tube. An overlap range between the housing jacket and an axially displaceable compon... | 04/01/2008 |
| 7316627 | Integrated two-speed motor A vehicle drive assembly includes an integrated two-speed motor that can selectively drive an output at a high operating speed or a low operating speed. The two-speed motor includes a stator mounted to a non-rotating outer housing, and a rotor that is mounted for ro... | 01/08/2008 |
| 7312550 | Architecture for electric machine In one aspect, an alternator is described which includes a current control apparatus including a stator winding and a control winding, wherein current control in the control winding regulates the stator winding. In another aspect, a gas turbine engine includes a mul... | 12/25/2007 |
| 7309941 | Rotating electric machine and electric vehicle A rotating electric machine according to the present invention includes: a rotation axis extending along a first direction; a first rotor for coupling with the rotation axis to rotate together with the rotation axis; a first stator disposed so as to oppose the first... | 12/18/2007 |
| 7301310 | Excitation controlled synchronous permanent magnet machine The present invention provides an apparatus and methods for providing constant voltage from a permanent magnet generator at varying prime mover speeds or under varying loads. A constant voltage permanent magnet generator includes a housing, a magnetized rotor, a pri... | 11/27/2007 |
| 7291953 | High performance motor and magnet assembly therefor A magnet assembly includes a back iron and an array of magnets. The back iron is in the form of a plate having opposed surfaces. The magnets are arranged along one of the surfaces, with the other surface being dimensioned and configured according to the magnetic fie... | 11/06/2007 |
| 7288923 | Voltage-limited electric machine An electric alternator having a rotor, stator and at least one winding in the stator adapted to conduct a current, the machine also having and first and second magnetic circuits around different portions of the winding which may be configured relative to one another... | 10/30/2007 |
| 7262534 | Magneto-generator Two end plates of a stator core are made of a metal material to increase their rigidity and thereby hold, in a prescribed shape, generation coils that are wound on teeth of the stator core. To increase the insulation between the generation coils and the teeth, the c... | 08/28/2007 |
| 7253548 | Method and apparatus for controlling an electric machine The invention provides a method and apparatus for controlling a machine in which the magnetic flux emanating from a rotor is selectively diverted to a second path in the stator which bypasses the winding or windings so as to magnetically de-couple the winding or win... | 08/07/2007 |
| 7250701 | Apparatus for detecting a rotor angle of reluctance motor An end surface of a rotor core is offset from an end surface of a stator core by a predetermined amount in an axial direction going away from Hall ICs. In an operating condition of the motor, magnetomotive forces generating from the stator core induce a thrust force... | 07/31/2007 |
| 7218018 | Actuator An actuator includes a casing, a stationary member having a coil member and mounted in the casing and a movable member having a moving element and supported by the casing. The moving element has a shaft and is supported by the casing so as to be moved in an axial di... | 05/15/2007 |
| 7211917 | Motor with a magnet fixed on the inner peripheral face of a circumferential wall A motor includes a circumferential wall part of a case provided with an opening part on one end side in an axial direction and at least a magnet fixed to the inner peripheral face of the circumferential wall part. At least a part of the outer peripheral face of the ... | 05/01/2007 |
| 7204192 | Apparatus, systems and methods for levitating and moving objects Apparatus, systems and methods for levitating and moving objects such as vehicles, doors and windows are shown and described herein. The embodiments incorporate a track with lower rails having lower permanent magnets and the object with upper rails having upper perm... | 04/17/2007 |
| 7202625 | Multi-motor switched reluctance traction system A switched reluctance traction system is provided for work machines. The switched reluctance traction system may include a plurality of switched reluctance motors. Each switched reluctance motor may include a stator with a plurality of stator poles and a rotor with ... | 04/10/2007 |
| 7190101 | Stator coil arrangement for an axial airgap electric device including low-loss materials A dynamoelectric, rotating electric machine includes a stator assembly that includes stacked stator coil windings. The machine is preferably a polyphase, axial airgap device. Improved slot filling results from the stacked stator coil configuration. Device performanc... | 03/13/2007 |
| 7161259 | Wind power generator A windmill driven electric generator is described with an air sealed closed chamber surrounding rotating and stationary parts to prevent condensation problems during times when the windmill is standing still due to a lack of wind. The closed chamber may be provided ... | 01/09/2007 |
| 7148594 | Axial gap electrical machine An axial gap electrical machine employs unique architecture to (1) overcome critical limits in the air gap at high speeds, while maintaining high torque performance at low speeds, while synergistically providing a geometry that withstands meets critical force concen... | 12/12/2006 |
| 7129611 | Method and radial gap machine for high strength undiffused brushless operation A radial gap brushless electric machine (30) having a stator (31) and a rotor (32) and a main air gap (34) also has at least one stationary excitation coil (35a, 36a) separated from the rotor (32) by a s... | 10/31/2006 |
| 7126313 | 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... | 10/24/2006 |
| 7116006 | Wind energy conversion system A wind energy conversion system includes upper and lower wind turbines having counter-rotating blade assemblies supported for rotation about a vertical rotation axis, with each blade assembly carrying a rotor for rotation past a stator to produce an electrical outpu... | 10/03/2006 |
| 7105938 | Electronically controlled engine generator set An electronically controlled electrical power generator comprises a generator driven by a heat engine, operated by control means, and carrying an electrical load. Operation of the heat engine is at wide open throttle. Control over engine operation and electrical out... | 09/12/2006 |
| 7098566 | Axial gap electrical machine An axial gap electrical machine employs unique architecture to (1) overcome critical limits in the air gap at high speeds, while maintaining high torque performance at low speeds, while synergistically providing a geometry that withstands meets critical force concen... | 08/29/2006 |
| 7057323 | Modular flux controllable permanent magnet dynamoelectric machine A modular assembly for an electromagnetic machine is disclosed. The modular assembly includes a rotor assembly and a flux controlling assembly. The rotor assembly has a shaft and has a plurality of rotor laminations mounted on the shaft. The rotor laminations define... | 06/06/2006 |
