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| Number | Title | Issue Date |
| 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 |
| 7196446 | Rotor for an electric motor The invention relates to a rotor for an electric motor comprising an essentially cylindrical rotor core having a central aperture, and comprising permanent magnets which are embedded in the rotor core and extend essentially like spokes through the rotor core, the ra... | 03/27/2007 |
| 7193345 | Collecting and distributing ring for rotary electric machine stator A collection-distribution ring comprises three busbars, each having a circular ring shape, which are integrally connected together with prescribed distances therebetween by an insulating resin. Coil connection terminals project inwardly in a radial direction and are... | 03/20/2007 |
| 7183685 | Rotor for an electric motor The invention relates to a rotor for an electric motor, particularly an electric line-start motor, comprising axially accommodating spaces (4 to 6) for conductor rods, and axially extending receiving spaces (10, 11) for permanent magnets (14,... | 02/27/2007 |
| 7102264 | Synchronous induction motor and manufacturing method and drive unit for the same, and hermetic electric compressor A synchronous induction motor features improved assemblability of a rotor, significantly reduced production cost, and improved operation performance of the motor. A plurality of die-cast secondary conductors is provided around a rotor yoke constituting the rotor of ... | 09/05/2006 |
| 7102259 | Rotor of a synchronous induction electric motor A rotor of a synchronous induction electric motor according to the present invention includes a slot for generating induction torque and a slit for generating reluctance torque. The slot and the slit are filled up with aluminum which is short-circuited by an end-rin... | 09/05/2006 |
| 7038345 | Synchronous electric machine An electric machine (M) comprises a field (A) and an armature (B) between which is defined an air gap (G). The field (A) has at least one pair of poles (N, S) and the armature (B) has n teeth (20) and n slots (21) per pair of poles (N, S) of the field ... | 05/02/2006 |
| 7019427 | Permanent magnet synchronous motor A synchronous motor includes a stator, a rotor and permanent magnets. The rotor includes a rotor iron core rotatable relative to the stator, and a plurality of conductor bars accommodated within corresponding slots in the rotor iron core. The conductor bars have the... | 03/28/2006 |
| 7015617 | High speed generator with rotor coil support assemblies secured to interlamination disks A rotor for a high speed generator is constructed of a plurality of laminations and interlamination disks, which are disposed between each of the laminations. A coil support assembly is disposed within each of the rotor interpole regions and is secured to the interl... | 03/21/2006 |
| 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 |
| 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 |
| 4922152 | Synchronous machine rotor lamination A rotor lamination for a permanent magnet synchronous machine. The rotor lamination can be used for a two, four or eight pole synchronous machine. The orientation of the permanent magnets determines the number of poles of the machine. The lamination can a... | 05/01/1990 |
| 4476408 | High efficiency, low cost permanent magnet AC machine A high efficiency permanent magnet AC machine comprises a permanent magnet rotor mounted for rotation within a stator excited by alternating current. The rotor is formed of a cylindrical core of unitary laminations into which a squirrel cage winding is em... | 10/09/1984 |
| 4358697 | Two-pole permanent magnet synchronous motor rotor A permanent magnet rotor configuration which produces two magnetic poles. Two pairs of axial slots are provided in which permanent magnets are arranged about the rotor shaft. A third, diametrically opposed pair of slots is provided which extend radially o... | 11/09/1982 |
| 4358696 | Permanent magnet synchronous motor rotor A permanent magnet rotor configuration which produces four magnetic poles utilizing two sets of symmetrically-disposed permanent magnets. The slots carrying the magnets exhibit a truncated V-shaped configuration, extending from points on the periphery of ... | 11/09/1982 |
| 4127786 | Synchronous machine with inner rotor, excited by permanent magnets A synchronous machine including a rotor having at least two lamination substacks, between which are arranged support disks of nonmagnetic material which are firmly mounted on the ferromagnetic rotor shaft. Each substack includes in the circumferential dir... | 11/28/1978 |
