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| Number | Title | Issue Date |
| 8080915 | Embedded magnet motor and manufacturing method of the same In an embedded magnet motor, radial magnets and first inclined magnets form north poles. The radial magnets and second inclined magnets form south poles. Core sheets each include preformed radial accommodating slots the number of which is expressed by P/2. Some of t... | 12/20/2011 |
| 8049388 | Rotor for a permanent-magnet electrical machine The object of the invention is a rotor for an electrical machine excited by permanent magnets, said rotor comprising a substantially cylindrical magnetic body of the rotor fitted onto the shaft of the electrical machine and a set of permanent magnets used to create ... | 11/01/2011 |
| 8018110 | High speed internal permanent magnet machine and method of manufacturing the same An internal permanent magnet (IPM) machine is provided. The IPM machine includes a stator assembly and a stator core. The stator core also includes multiple stator teeth. The stator assembly is further configured with stator windings to generate a magnetic field whe... | 09/13/2011 |
| 8004140 | Dovetail spoke internal permanent magnet machine An internal permanent magnet (IPM) machine is provided. The IPM machine includes a stator assembly and a stator core. The stator core also includes multiple stator teeth. The stator assembly is further configured with stator windings to generate a stator magnetic fi... | 08/23/2011 |
| 7939982 | Motor with lobed rotor having uniform and non-uniform air gaps A motor having a rotor including first outer surface segments providing uniform air gaps and second outer surface segments providing non-uniform air gaps. The rotor has an outer surface contour comprising a number of first outer surface segments defined by arcs havi... | 05/10/2011 |
| 7868503 | Embedded magnet motor and manufacturing method of the same In an embedded magnet motor, radial magnets and first inclined magnets form north poles. The radial magnets and second inclined magnets form south poles. Core sheets each include preformed radial accommodating slots the number of which is expressed by P/2. Some of t... | 01/11/2011 |
| 7868502 | Fan motor, BLDC motor, and rotor for the BLDC motor A BLDC motor is provided. The BLDC motor includes a stator having a plurality of teeth formed at an inside thereof, a plurality of coils, each of the plurality of coils being wound around a corresponding tooth of the stator, a rotor located at the inside of the stat... | 01/11/2011 |
| 7847461 | Multi-layer magnet arrangement in a permanent magnet machine for a motorized vehicle A permanent magnet machine includes a stator having a hollow core, a rotor rotatably disposed inside the hollow core, and a plurality of multilayered permanent magnets embedded in the rotor. Each multilayered permanent magnet has opposite first and second ends, and ... | 12/07/2010 |
| 7843101 | Interior permanent magnet electric motor including a rotor having circumferential surface portions with defined curve profiles A rotary shaft 60 having an outside diameter larger than the bore diameter of a rotary shaft insert hole 59 of a rotor 50 is inserted into the rotary shaft insert hole 59. A magnet insert hole 51a1 is provided in a ma... | 11/30/2010 |
| 7804216 | Permanent-magnet reluctance electrical rotary machine For an electrical reluctance rotary machine, a stator has a winding as an armature, and a rotor has permanent magnet implanting slots provided in a rotor core at lateral sides magnetic poles configured to produce reluctance torque along directions of magnetic flux p... | 09/28/2010 |
| 7800272 | Embedded magnet motor and manufacturing method of the same In an embedded magnet motor, radial magnets and first inclined magnets form north poles. The radial magnets and second inclined magnets form south poles. Core sheets each include preformed radial accommodating slots the number of which is expressed by P/2. Some of t... | 09/21/2010 |
| 7772735 | Embedded magnet type rotating electric machine A plurality of magnets are arranged in accommodating holes each extending in a radial direction. A rotor core is provided with an extension portion in a circumferential direction extending further outward in the circumferential direction with respect to the magnet f... | 08/10/2010 |
| 7737595 | Hybrid vehicle A hybrid vehicle implements a required traveling condition by generating a required driving force necessary to drive the vehicle even in the case where a supply source of a working fluid develops a malfunction. The hybrid vehicle is equipped with a motor which chang... | 06/15/2010 |
| 7663282 | Traction drive for elevator A traction drive for an elevator comprises a sheave for actuating a transmission device of the elevator and a synchronous motor, the synchronous motor comprising a stator with at least one winding for generating a magnetic field rotating around a motor axis and a ro... | 02/16/2010 |
| 7535148 | Electromagnetic device for converting mechanical vibrational energy into electrical energy, and manufacture thereof An electromagnetic generator comprising a multilayer assembly of a first layer carrying at least one magnet, a second layer carrying at least one coil, and a third layer carrying at least one magnet, the at least one magnet of the first and third layers being config... | 05/19/2009 |
| 7531934 | Self-start synchronous motor with permanent magnets and at least one frictional agitation joint, method for manufacturing the same and compressor comprising the same In a method of manufacturing a self-start synchronous motor for preventing deterioration of permanent magnets used in a rotor, and also for enhancing the efficiency of the self-start synchronous motor, the self-start synchronous motor comprising a stator having a st... | 05/12/2009 |
| 7518278 | High strength undiffused brushless machine and method A method and apparatus in which a rotor (11) and a stator (17) define a radial air gap (20) for receiving AC flux and at least one DC excitation coil (23, 24) positioned near the stator end turn to produce DC flux in axial air gaps (21... | 04/14/2009 |
| 7474029 | Rotor magnet placement in interior permanent magnet machines A machine includes a stator and a rotor having a plurality of poles. Each pole is formed at least in part by a plurality of permanent magnets recessed within the rotor at a predetermined distance from an outer surface of the rotor. The distance is predetermined to m... | 01/06/2009 |
| 7432624 | Rotor for a permanent-magnet electrical machine and a machine for manufacturing it The object of the invention is a rotor (4) for a permanent-magnet electrical machine, comprising an axle (6) mounted to the machine body with bearings, a rotor pack made of iron and arranged around the axle (6), as well as permanent magnets (... | 10/07/2008 |
| 7425786 | Permanent magnet type rotating electrical machine A permanent magnet type rotating electrical machine that is capable of producing a higher output and is suitable for high-speed rotation. A pair of nonmagnetic portions are formed in a rotor core at opposite ends of each pole. The waveform of induced voltage and a m... | 09/16/2008 |
| 7417349 | Driving apparatus A rotating electric machine comprises a stator having stator salient poles, three-phases windings wound around said stator salient poles, a rotor rotatable held inside the said stator, and permanent magnets inserted into said rotor and positioned opposite to said st... | 08/26/2008 |
| 7408280 | Rotor of rotary electric machine A Lundell type rotor core with a pair of side cores and a magnetic-pole cylindrical portion has a structure in which the magnetic-pole cylindrical portion is mated between both the side cores (also referred to as “pole cores”) in a radial direction at an outside... | 08/05/2008 |
| 7405503 | Permanent magnet rotating electric machine The present invention provides a rotating electric machine in which damage to a magnet from heat is prevented, eddy current loss is reduced while decreasing an eddy current generated in a permanent magnet, and furthermore, time and cost for manufacturing can be redu... | 07/29/2008 |
| 7405504 | Rotor for rotary electric machine A rotor for a rotary electric machine includes a rotor core made of magnetic material, and being in the form of a disk, and a plurality of magnet sets each including a pair of permanent magnets whose polarities are identical to each other. The magnet sets are arrang... | 07/29/2008 |
| 7388310 | Synchronous electrical machine comprising a stator and at least one rotor, and associated control device The invention relates to a synchronous electric motor comprising a stator (10) and at least one rotor (20) with permanent magnets (21), characterized by an embodiment with Xd>Xq; where Xd is the direct reactance ... | 06/17/2008 |
| 7378774 | Laminated core of rotary electric machine A laminated core having a first number of magnetic poles, the first number being a natural number divided by two, of a rotary electric machine, includes a plurality of arc-shaped unit cores each having a second number of magnetic poles, the second number being a nat... | 05/27/2008 |
| 7378773 | Permanent magnet electric rotating machine and electromotive vehicle using permanent magnet electric rotating machine A magnetic gap is provided between a permanent magnet of a rotor and an auxiliary magnet pole portion which is arranged adjacent to the permanent magnet in a peripheral direction. A gradual change in a magnetic flux density distribution of a surface of the rotor is ... | 05/27/2008 |
| 7363175 | Query based electronic battery tester An electronic battery tester for testing a storage battery provides a test output indicative of a condition of the battery. Electronic measurement circuitry provides a measurement output related to a condition of the battery. The battery condition is determined base... | 04/22/2008 |
| 7342337 | Power generating systems A power generating system includes a torque converter system receiving a rotational motion having a first torque from a source and producing a rotational output having a second torque different from the first torque, a transfer system having a first portion coupled ... | 03/11/2008 |
| 7332845 | Spoke permanent magnet rotor A rotor includes a shalt that defines a rotor axis, a first end portion coupled to the shaft, and a pole piece that defines an enclosed aperture therethrough. A second end portion is positioned to dispose the pole piece between the first end portion and the second e... | 02/19/2008 |
| 7327062 | Rotor for rotary electric machine A rotor (10) for a rotary electric machine (1) comprises a rotation shaft (11), and a plurality of rotor cores (120-129) fixed to the rotation shaft (11) and axially split. The rotor cores (120-129) have outer ... | 02/05/2008 |
| 7319304 | Shunt connection to a PCB of an energy management system employed in an automotive vehicle A method of coupling a shunt to a printed circuit board (PCB) of an energy management system is provided. The method includes coupling flexible electrical connectors to the shunt and soldering the flexible electrical connectors to connection points on the PCB of the... | 01/15/2008 |
| 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 |
| 7295936 | Electronic battery tester with relative test output An electronic battery tester for testing a storage battery determines a condition of the battery. The condition is a relative condition and is a function of a dynamic parameter of the battery and an empirical input variable. ... | 11/13/2007 |
| 7282827 | Permanent magnet motor A permanent magnet motor has permanent-magnet-holding slots 5 formed in those parts of a rotor core 2A which correspond to sides of an approximately regular polygon centered on an axis of the rotor core 2A, permanent magnets 4 inserted in... | 10/16/2007 |
| 7279821 | Motor A motor includes a rotor, a rotor core included in the rotor, the rotor core being configured to be embedded, therein, with at least one first magnet, a pair of end plates, one of the pair of end plates being positioned at an axial end of the motor, an other one of ... | 10/09/2007 |
| 7268454 | Power generating systems A power generating system includes a torque converter system receiving a rotational motion having a first torque from a source and producing a rotational output having a second torque different from the first torque, a transfer system having a first portion coupled ... | 09/11/2007 |
| 7262526 | Rotor for permanent magnet motor of outer rotor type A rotor for a permanent magnet motor of an outer rotor type having a plurality of permanent magnets and disposed around a stator includes a frame, an annular iron core combined integrally with the frame, and a plurality of insertion holes formed in the core so that ... | 08/28/2007 |
| 7250703 | Permanent magnet motor and washing machine provided therewith A permanent magnet motor includes a rotor core having magnetic pole faces including first to third faces. The first face is formed on a peripherally central part and has a peripherally uniform width of the gap. Each of the second and third faces is formed on both pe... | 07/31/2007 |
| 7246015 | Alternator tester An alternator tester is provided for testing an alternator of a vehicle while the alternator is coupled to the vehicle. A sensor is configured to couple to the vehicle and sense a signal related to operation of the alternator. A memory contains data related to opera... | 07/17/2007 |
