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| Number | Title | Issue Date |
| 8049393 | Rotor for an electric machine having a retaining device for the end winding A rotor for an electric machine includes a rotor yoke having a plurality of axial winding slots distributed on an outer periphery of the rotor yoke; a winding bar disposed in one of the plurality of axial winding slots, the winding bar having at least one winding en... | 11/01/2011 |
| 8004145 | Electric rotating machine A lead conductor penetrating portion that bring out lead conductors to the inner diameter side is formed in a winding holding portion of a clamp ring for holding a rotor winding that overhangs from a rotor core, and furthermore a stopper is formed in a lead portion ... | 08/23/2011 |
| 7982359 | High efficiency salient pole machine and method of forming the same A salient pole machine and method of forming the same comprising a rotating field assembly and at least one inter-pole cap connected to the rotating field assembly and/or at least end coil cap connected to the rotating field assembly. Each inter-pole cap preferably ... | 07/19/2011 |
| 7855487 | Generator end turn stress reduction collar A collar is to be positioned on a generator and includes an inner bore sized to be received on an outer periphery of a generator shaft. The collar has an outer periphery, which is generally hexagonal. The collar has an axially extending ledge to be received within a... | 12/21/2010 |
| 7812501 | Dynamo-electric machine rotor It is an object of this invention to provide a dynamo-electric machine rotor which effectively and uniformly cools a rotor coil outside a rotor core by forming a ventilating groove in the rotor coil, tolerates large field current, and has high reliability. There is ... | 10/12/2010 |
| 7541714 | Streamlined body wedge blocks and method for enhanced cooling of generator rotor Body wedge blocks are provided adjacent the end of the rotor body that have a forward facing axial end that is aerodynamically streamlined. Thus, between adjacent body wedge blocks a flow passage for cooling air is created that allows gradual contraction of the flow... | 06/02/2009 |
| 7456542 | Inlet guidevanes for generator rotors The present invention provides for a method of installing a guidevane 20 to an end plate 6 that comprises manufacturing a guidevane with at least one tab 30 located on a top length-wise edge of the guidevane and multiple tab slots 32 loca... | 11/25/2008 |
| 7432628 | Generator and method of manufacturing same A generator and a method of manufacturing the generator, which can suppress a lowering of tension of a bind ring caused by an initial deformation during assembly and changes with the lapse of time during long-term operation, and can prevent a lowering of the support... | 10/07/2008 |
| 7342345 | Paddled rotor spaceblocks A dynamoelectric machine cooled by a gas flow. The machine may include a rotor, an endwinding extending axially beyond the rotor, a spaceblock located about the endwinding, and a passageway positioned about the spaceblock. The spaceblock may include a C-channel exte... | 03/11/2008 |
| 7339303 | Electrical machine An electrical machine incorporates a rotor core assembly (30) wherein the core (33) has rotor bars (31) extending into and secured within slots of end rings (34) either side of the core (33). The core (33) is secured in axia... | 03/04/2008 |
| 7321179 | Radially clamped ball and socket series and phase connector The present invention comprises a U-bolt connector for connecting pairs of stator coil headers 2 with ball headers 6 comprising, a U-bolt 16, top capping pieces 18,20, bottom capping pieces 20, 21, a variable piece 24, and a... | 01/22/2008 |
| 7317270 | Electric machine with transducer system An electric machine includes a stator, a rotor, an electrically insulated bearing unit for supporting the rotor, a transducer system, and at least one torque support for connecting the transducer system to the rotor and the stator. In order to prevent a potential eq... | 01/08/2008 |
| 7302750 | Method of manufacturing armature of rotary electric machine An armature of a rotary electric machine composed of an armature core, an armature winding and a shaft is manufactured in the following manner. A conductor bar including plural conductors connected in line is formed, and each conductor is cut out from the conductor ... | 12/04/2007 |
| 7285881 | Superconducting device comprising a cooling unit for cooling a rotating, superconductive coil The supraconductor device contains a rotor, which can rotate about a rotational axis, with a supraconductive coil in a heat conducting coil support. The coil support comprises a central cylindrical cavity. A cooling head, which is located outside of the rotor, of a ... | 10/23/2007 |
| 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 |
| 7256528 | Tie ring A tie ring is provided wherein the tie ring includes a tie ring structure defining at least one strap cavity. The tie ring structure includes a tie ring top surface and a tie ring bottom surface, wherein the tie ring top surface defines at least one top surface open... | 08/14/2007 |
| 7247966 | Flexible rotor pole crossover for a generator A generator includes a shaft and rotor body defining poles and a winding positioned around the shaft on the rotor body. A rotor pole crossover is aligned to the shaft and connects ends of the winding between adjacent poles. The rotor pole crossover includes a body m... | 07/24/2007 |
| 7211921 | Winding support of a superconductive rotor, comprising a structure to compensate for axial expansion of the support An aspect of the invention relates to a machine comprising a rotor mounted so it can rotate about a rotational axis, and a superconductive winding located in a winding support. Further, connection devices are provided to retain the winding support inside a rotor ext... | 05/01/2007 |
| 7164217 | Lead frame and distributing part using same An electric motor lead frame for connecting motor coils of the same phase is formed integrally by a linear conductor. The linear conductor includes at least a single conducting wire and has terminal portions formed by bending for connection with winding ends of moto... | 01/16/2007 |
| 7157828 | Fuel pump for high torque in compact structure In a fuel pump, four permanent magnets are installed in a housing. An armature is installed inside the permanent magnets rotatably. Six magnetic pole coil portions of the armature are installed in a central core. Each magnetic pole coil portion has a coil core, a bo... | 01/02/2007 |
| 7146707 | Method of assembling a balanced high speed generator rotor An improved apparatus and method of having a pair of end caps on a rotor assembly of a multi-pole high-speed generator is provided for use with a turbine engine. The rotor assembly provides improved balancing and/or cooling during generator operation. The rotor asse... | 12/12/2006 |
| 7129605 | Generator rotor lead path for connecting to a field winding An interconnecting assembly for a rotor assembly of a dynamoelectric machine is provided. The interconnecting assembly may be part of a conductive path generally extending from a radially inward section of the rotor assembly to a winding located at a radially outwar... | 10/31/2006 |
| 7122936 | Phase insulation paper and electric motor provided with phase insulation paper Three-dimensional portions are made of the same PET resin as are flat portions, only thicker. That is, the three-dimensional portions are more rigid than the flat portions. The three-dimensional portions are bonded to the flat portions at cutout portions thereof by ... | 10/17/2006 |
| 7119644 | Mounting structure for superconducting windings A superconducting coil assembly is of the type mounted to a rotor assembly of an electric rotating machine and, in operation, is maintained at cryogenic temperatures while the portion of the rotor assembly is maintained above cryogenic temperatures. The superconduct... | 10/10/2006 |
| 7119462 | Generator rotor conductive path for connecting to a top-turn of a winding An interconnecting assembly (100) for a rotor assembly of a dynamoelectric machine is provided. The interconnecting assembly may be part of an electrically conductive path generally extending from a radially inward section of the rotor assembly to a top windi... | 10/10/2006 |
| 7086137 | Rotor assembly method A rotor and a method of constructing a rotor are disclosed. The rotor includes a hub that is capable of being supported by a shaft that extends along an axis, a plurality of laminations, and a plurality of wire windings supported by the plurality of laminations. The... | 08/08/2006 |
| 7081695 | Adjustable fit wedges The present invention provides for a fitted wedge wherein a formed outer frame is loosely fitted into a desired gap. The formed outer frame contains a lateral gap such that the formed outer frame is substantially or completely divided into two halves. A thin, stiff ... | 07/25/2006 |
| 7075208 | Machine with a coolable winding arranged in a winding support and with a torque transmitting device The machine comprises a rotor with a winding for cooling, which is in particular superconducting, in a winding support. A device with a composite body made of fiber-reinforced plastic is provided, for retention of the winding support within a rotor outer housing, on... | 07/11/2006 |
| 7057326 | Rotor body containment shell with reduced windage losses A rotor body assembly includes a rotor and a containment shell surrounding the rotor, the containment shell having an external peripheral surface provided with a plurality of surface deformations. ... | 06/06/2006 |
| 7013552 | Method for forming an armature for an electric motor for a portable power tool An electric motor having an armature which includes a coating of thermally conductive plastic applied in a conventional injection molding process. The armature also includes a fan which is integrally formed from the thermally conductive plastic applied to the armatu... | 03/21/2006 |
| 7015616 | System and method for providing coil retention in the rotor windings of a high speed generator A coil retention system for a rotor of a high speed electrical generator, such as an aircraft generator, that uses compliant material to fill variable dimension voids and/or gaps in the coils wound around the rotor of an electrical machine. During processing of the ... | 03/21/2006 |
| 7002270 | Generator rotor conductive path for connecting to a top-turn of a winding A joined assembly and kit for a rotor of a dynamoelectric machine are provided. The joined assembly is part of a conductive path generally extending from a radially inward section of the rotor to a radially outward section of the rotor. The conductive path includes ... | 02/21/2006 |
| 6982506 | Cooling of high speed electromagnetic rotor with fixed terminals A rotary electric machine assembly includes a stator and a shaft including a hollow core. Mounted onto the shaft is an inner-flanged band with an inner hub, a first flange and a first containment band. An outer-flanged band includes an outer hub that nests over the ... | 01/03/2006 |
| 6977460 | Spacer for axial spacing enclosure rings and shields in an electrical machine Grooves are formed in the pole faces of a multi-pole rotor body. Spacers are provided for insertion into the grooves and have radial outward projections for engaging between shield segments and enclosure rings. By providing spacers with variable width projections, t... | 12/20/2005 |
| 6971153 | Method of manufacturing winding of rotary electric machine A method of manufacturing a winding of a rotary electric machine includes steps of pressing a portion of a conductor segment in a predetermined direction to reduce its dimension in the direction, inserting the conductor segment into a slot of a stator core, bending ... | 12/06/2005 |
| 6972507 | End winding restraint in an electrical machine The rotor body of an electrical machine has end windings supported by a plurality of circumferentially spaced rakes having tines between which the end windings pass in an arcuate pattern from and for return to an axial orientation within the rotor body. The rakes ar... | 12/06/2005 |
| 6965185 | Variable pitch manifold for rotor cooling in an electrical machine A rotor in an electrical machine, the rotor comprises a magnetic core having at least two poles, a plurality of winding assemblies, one for each pole, and a cylindrical tube enclosing the magnetic core and winding assemblies, the tube including a plurality of rings ... | 11/15/2005 |
| 6965184 | Apparatus for supporting a stator end winding An apparatus (10) for supporting a winding (7) on a stator (1), in particular on a generator stator in a power station. The winding (7) has an end winding (9) which is supported axially on the core (2) of the stator (1 | 11/15/2005 |
| 6960862 | Electric machine with soft magnetic teeth Electric machines operating according to the reluctance principle have toothed air gap surfaces between their moving and fixed parts. The magnetizability of these teeth directly affects the performance of the machine. According to the invention, the teeth projecting... | 11/01/2005 |
| 6956313 | Method and apparatus for reducing hot spot temperatures on stacked field windings A method and apparatus for a generator coil includes a plurality of stacked windings in a rotor where individual turns are stacked in parallel sided radial slots in the rotor. Each successive turn has the same width substantially corresponding to a constant width of... | 10/18/2005 |
