End Turn Supports Patents (Class 310/270)
  • Patent number: 10340763
    Abstract: An electric motor for a hybrid or electric vehicle drive unit includes a housing with a stator fixed within the housing and including a plurality of end windings. A rotor is disposed within the housing and connected to a drive shaft. An isolating ring is disposed within the housing between the end windings and the housing.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: July 2, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Frederick W. Rhoads, Rodney C. Malone, John A. Diemer
  • Patent number: 10027197
    Abstract: A stator includes a stator core, a stator attachment and a plurality of segment coils. The stator core has a yoke portion, stator teeth and stator slots. The stator attachment is placed on an axial end surface of the stator core. The stator attachment includes attachment teeth, attachment slots and varnish guide faces. Each of the attachment slots communicates with an axial open end of each of the stator slots. The varnish guide faces approach an axially central side toward an attachment slot side in the radial direction. The segment coils are fixed to the stator core with varnish. Each segment coils includes plurality of conductor segments. The conductor segment is bent by making contact with the attachment teeth.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: July 17, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tetsushi Mizutani, Yuichiro Ito, Keiichi Kaneshige
  • Patent number: 9680343
    Abstract: In certain exemplary embodiments, a generator field upgrade kit includes a design modification package configured to be installed in a generator field of a generator as a retrofit to mitigate damage of the generator field due to high cyclic duty of the generator. The design modification package includes a plurality of individual modifications that are selectable based on specific operational and performance parameters of the generator.
    Type: Grant
    Filed: May 9, 2011
    Date of Patent: June 13, 2017
    Assignee: General Electric Company
    Inventors: Kevin Mitchell Draina, Benjamin Alber Mancuso, Donald Alden VanSlyke
  • Patent number: 9653960
    Abstract: An inner-rotor motor includes a shaft, a rotor magnet, a stator, a housing including a housing tubular portion extending along a rotation axis, a cap, and a bearing portion. The cap is located above the housing, and includes a cap bottom portion and a cap tubular portion which extends downward from the cap bottom portion. A core back of the stator includes a tubular outer circumferential surface including a plurality of stator contact portions in contact with the housing tubular portion. The stator contact portions are spaced from one another in a circumferential direction. The cap tubular portion includes a plurality of cap contact portions in contact with the housing and spaced from one another in the circumferential direction. At least one of the cap contact portions is located at a circumferential position different from a circumferential position of each stator contact portion.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: May 16, 2017
    Assignee: NIDEC CORPORATION
    Inventors: Shigekatsu Matsuda, Keizo Furukawa, Kazuya Kitaji
  • Patent number: 9473003
    Abstract: A rotary electric machine for a vehicle is obtained in which cooling performance between phases of a coil can be improved. The rotary electric machine for a vehicle includes: a stator that is placed opposite the outer periphery face of a rotor and has a plurality of split cores; coil ends formed protruded toward the edge face in the axis direction of the cores on each of which a coil is wound; a power distribution part placed on the radial outer periphery side of the cores; and a cover for protecting the power distribution part, wherein the inner periphery of the cover is located more inside than the outermost periphery of the coil ends in the radial direction and has inclined parts inclined toward the coil ends.
    Type: Grant
    Filed: July 22, 2014
    Date of Patent: October 18, 2016
    Assignee: Mitsubishi Electric Corporation
    Inventor: Ken Nishikawa
  • Patent number: 9450464
    Abstract: An electrical collecting and distributing ring is composed of an annular bus ring including a plurality of terminals and a plurality of circular arc portions therebetween, respectively. The plurality of terminals include respective one pair of extended portions, which extend in a radial direction of the circular arc portions to clamp an end therebetween of a winding, and a respective curved portion, which is formed between the respective one pair of extended portions. The electrical conducting member is formed with depressed portions in the curved portions, respectively. The depressed portions are thinned in thicknesses in radial directions of the curved portions, respectively. The terminals and the ends of the winding are connected together by caulking the extended portions with the ends of the winding clamped between the extended portions, respectively.
    Type: Grant
    Filed: April 24, 2014
    Date of Patent: September 20, 2016
    Assignee: Hitachi Metals, Ltd.
    Inventors: Kazuhiko Tomita, Kenichi Egami
  • Patent number: 9293960
    Abstract: An electrical collecting and distributing ring is composed of an annular bus ring including a plurality of terminals and a plurality of circular arc portions therebetween, respectively, and a holding member, which at least partially molds the bus ring. The plurality of terminals include respective one pair of extended portions formed with clamping portions, respectively, extending through the holding member and in a radial direction of the circular arc portions to clamp an end therebetween of a winding. The respective one pair of extended portions of the terminals include thin portions, respectively, formed thin in thickness in a circumferential direction of the circular arc portions, at least partially between the holding member and the clamping portions, respectively. The terminals and the ends of the winding are connected together by caulking the clamping portions with the ends of the winding clamped between the clamping portions, respectively.
    Type: Grant
    Filed: April 24, 2014
    Date of Patent: March 22, 2016
    Assignee: Hitachi Metals, Ltd.
    Inventors: Kazuhiko Tomita, Kenichi Egami
  • Patent number: 9166454
    Abstract: An electric motor includes a stator, a case surrounding the stator, and a rotor rotatably disposed with respect to the stator. The rotor includes a rotor core having a plurality of poles and slots, a shaft coupled to a central portion of the rotor core, a rotor coil wound on the rotor core, and coil supporting members provided at the rotor core. The coil supporting members are configured to support the rotor coil such that the rotor coil is prevented from being separated from the rotor core in a radial direction when the rotor rotates. Under such a configuration, a short-circuit of the rotor coil due to a centrifugal force when the rotor rotates, can be prevented.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: October 20, 2015
    Assignee: LG ELECTRONICS INC.
    Inventors: Kwangwook Chun, Seungdo Han, Sunguk Shin
  • Patent number: 9130432
    Abstract: A rotating electric machine includes a rotor, having a rotor laminate stack extending in the direction of a machine axis and having a rotor winding, the rotor winding forming a winding head at each of the ends of the rotor laminate stack, said winding head being fastened to a winding head rim, which is arranged concentrically within the winding head and adjoins the rotor laminate stack in the axial direction, in order to intercept centrifugal forces by means of bolts passing radially through the winding head, and a fastening designed to safely absorb axial expansions of the winding head. Simple and secure fastening is achieved by virtue of the bolts being fastened to the winding head rim in each case on a T-shaped hammer profile, which extends in the axial direction and is mounted in axially movable fashion in an associated axial T-shaped slot in the winding head rim.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: September 8, 2015
    Assignee: ALSTOM RENEWABLE TECHNOLOGIES
    Inventors: Serdar Cifyildiz, Alexander Schwery, Ricardo Naoki Okai, Hanspeter Walser, Matthias Schmid
  • Patent number: 9035531
    Abstract: A rotating electric machine, e.g. hydrogenerator, includes a rotor, including a rotor laminate stack extending in a machine axis direction and having a rotor winding which forms a winding head at each of the ends of the rotor laminate stack. The winding head is fastened to a winding head rim, which is arranged concentrically within the winding head and adjoins the rotor laminate stack in the axial direction, to intercept centrifugal forces by bolts passing radially through the winding head, and a fastening designed to safely absorb axial expansions of the winding head. Simple and secure fastening is achieved by the bolts being fastened to the winding head rim in each case on a T-shaped hammer profile, which extends axially and is mounted, axially movable, in a T-shaped groove in the winding head rim, additional couplers are provided that transmit axial expansions of the winding head onto the hammer profile.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: May 19, 2015
    Assignee: ALSTOM RENEWABLE TECHNOLOGIES
    Inventors: Serdar Cifyildiz, Alexander Schwery, Ricardo Naoki Okai, Hanspeter Walser, Matthias Schmid
  • Publication number: 20150097464
    Abstract: A rotor connection support comprising a main connection ring configured to reduce the moment load on fastener locations (such as threaded fastener locations) by integrating stand-off posts into a high strength plate are discussed herein. These stand-offs may be configured to reduce the stresses on the high stress concentration/low cross section threads. Also, included is an improved wire routing and wire support configured to maximize the fatigue cycles of the main field lead wires.
    Type: Application
    Filed: January 23, 2014
    Publication date: April 9, 2015
    Applicant: Hamilton Sundstrand Corporation
    Inventors: TIMOTHY R. WELCH, BRIAN C. KONOPA, GLENN C. LEMMERS, JR., LUKE WAGNER
  • Patent number: 8922088
    Abstract: Provided is a rotor for a dynamoelectric machine. The rotor includes winding elements arranged in axially extending grooves of a rotor body, a winding head arranged axially adjacent to the rotor body, and a winding head carrier, connected to the winding head by means of tension bolts, all arranged in such a way that reliable securing of the winding head against radial expansion due to centrifugal forces is ensured, while resulting in a compact and cost-effective configuration as well as sufficient cooling.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: December 30, 2014
    Assignee: Voith Patent GmbH
    Inventors: Holger Henning, Philipp Eilebrecht, Stefan Veser, Thomas Hildinger
  • Patent number: 8907539
    Abstract: A retaining ring configuration system is disclosed. In one embodiment, the system includes a set of adjustment apparatuses configured to contact a portion of a generator rotor, each of the set of adjustment apparatuses including: a base member for contacting the portion of the generator rotor; an adjustment member for adjusting a position of the generator retaining ring relative to the generator rotor; and an actuation member coupled to the base member and operably attached to the adjustment member, the actuation member for actuating movement of the adjustment member to adjust the position of the generator retaining ring relative to the generator rotor.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: December 9, 2014
    Assignee: General Electric Company
    Inventors: Yu Wang, Jordan Christopher Baker, John Matthew Sassatelli, John Thomas Sterle
  • Patent number: 8847459
    Abstract: An axial self-supported coil for a slotless rotating electric motor. The axial self-supported coil includes one coil body formed by winded electrical conductors, with a head at each end, the electrical conductors in the coil body being substantially coplanar with the motor rotation axis, each coil head having an axial thickness, the axial self-supported coil having a conductor filling factor, characterized in that at least one of the electrical conductors is a multi-stranded conductor, in that a deformation arrangement of the multi-stranded conductor increases the conductor filling factor and in that a bending arrangement of the multi-stranded conductor reduces the axial thickness of each coil head.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: September 30, 2014
    Assignee: Portescap SA
    Inventors: Julien Baudey, Cyril Baud, Alexis Montagnat-Rentier
  • Publication number: 20140125192
    Abstract: A rotor end-bell (2) for an electric generator, the rotor end-bell (2) being made at least in part of fiber-reinforced plastic. A rotor (1) and an electric generator (T) have at least one such rotor end-bell (2). The end-bell can be advantageously used in high-speed turbo generators.
    Type: Application
    Filed: June 13, 2012
    Publication date: May 8, 2014
    Inventors: Peter Gröppel, Steffen Lang, Claus Rohr
  • Patent number: 8643248
    Abstract: An electrical machine configured to operate in a power range of several MVA includes a rotor configured to rotate about an axis. The rotor includes a rotor winding disposed in a rotor lamination stack and having an exposed winding head outside of the rotor lamination stack. The winding head includes a winding head retention system having a plurality of radially oriented retention elements each including a locking device configured to secure a respective one of the retention elements against at least one of an unintentional loosening and a flying away in an event of a breakage.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: February 4, 2014
    Assignee: Alstom Renewable Technologies
    Inventors: Alexander Schwery, Serdar Cifyildiz, Matthias Schmid
  • Patent number: 8643242
    Abstract: A squirrel-cage rotor for asynchronous motors is provided with a lamination stack made of a magnetic material and a plurality of bars, the intermediate portions of which engage respective slots of the lamination stack; the end portions of the bars protrude with respect to the lamination stack at both axial ends of the rotor and are fixed to two shorting rings; a plurality of spaces are defined, axially, by the lamination stack and the shorting rings, and tangentially by the end portions of the bars; part of such spaces is engaged by stiffening blocks arranged in contact with the end portions of the adjacent bars.
    Type: Grant
    Filed: September 8, 2010
    Date of Patent: February 4, 2014
    Assignee: Ansaldobreda S.p.A.
    Inventors: Giovanni Caruso, Diego Iannuzzi, Franco Maceri, Enrico Pagano, Luigi Beneduce, Antonio Tarantino, Luigi Piegari
  • Publication number: 20140028132
    Abstract: Flywheel systems are disclosed that provide increased energy density and operational effectiveness. A first bearingless motor and a second bearingless motor may be configured to simultaneously suspend the central rotor in a radial direction and to rotate the central rotor. However, certain implementations may have one motor or more than two motors, depending on the design. A plurality of the flywheel systems may be collectively controlled to perform community energy storage with higher storage capacities than individual flywheel systems.
    Type: Application
    Filed: December 21, 2012
    Publication date: January 30, 2014
    Applicant: U.S.A., as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Ralph H. Jansen, Larry M. Trase, Timothy P. Dever, Peter E. Kascak, Kraft G. Thomas
  • Patent number: 8629589
    Abstract: A dynamoelectric machine includes a rotor having a plurality of adjacent coils; and a spaceblock disposed between adjacent coils so as to define at least a first cavity adjacent the spaceblock and between mutually adjacent coils, the spaceblock including a channel disposed in a coil facing surface of the spaceblock for intercepting and redirecting a circulating coolant flow to the first cavity.
    Type: Grant
    Filed: January 4, 2012
    Date of Patent: January 14, 2014
    Assignee: General Electric Company
    Inventors: Shriniwas Ananda Neje, Rebinth Jose Robin, Samir Armando Salamah, Vidyapati Tiwari
  • Patent number: 8531080
    Abstract: A rotor for a synchronous machine has a rotor axis which defines a rotor shaft. The rotor has a winding support which is arranged on the rotor shaft such that they rotate together, in such a way that it surrounds the rotor shaft in a center section with respect to the rotor axis. The winding support is fitted with a superconducting rotor winding. The rotor has a sleeve which at least radially surrounds the winding support and the rotor winding with respect to the rotor axis. The sleeve is formed integrally from a metal alloy, which is non-magnetic, has an electrical conductivity of at least 60% of the electrical conductivity of copper at 20° C., has a mechanical tensile strength of at least 250 N/mm2 at 200° C. and has a 0.2% proof stress of at least 200 N/mm2 at 200° C.
    Type: Grant
    Filed: July 14, 2009
    Date of Patent: September 10, 2013
    Assignee: Siemens Aktiengesellschaft
    Inventors: Michael Frank, Sven Gattermann, Peter Van Hasselt
  • Patent number: 8525376
    Abstract: A dynamoelectric machine includes a rotor having a plurality of adjacent coils; a spaceblock disposed between adjacent coils to define at least one cavity adjacent the spaceblock and between mutually adjacent coils; and the spaceblock including a body having one of: a substantially T-shaped cross-section, a substantially hexagonal cross-section and a substantially truncated arrow cross-section, the cross-section providing at least one flow deflector structure on at least one cavity facing surface of the spaceblock for intercepting and redirecting circulating coolant flow in the cavity towards a central region of the at least one cavity.
    Type: Grant
    Filed: October 1, 2010
    Date of Patent: September 3, 2013
    Assignee: General Electric Company
    Inventors: Shriniwas Ananda Neje, Rebinth Jose Robin, Samir Armando Salamah, Vidyapati Tiwari
  • Patent number: 8508088
    Abstract: A wiring component for a motor coil includes: a wire coil configured by a plurality of wire segments arranged in a circumferential direction so as to form a ring shape, each of the wire segments including an arc-shaped main-body portion made of a conductive wire rod bent in an arc shape, protruding portions formed at both end portions of the main-body portion and upright portions respectively formed at end portions of the protruding portions; an inner clip formed with a plurality of first holding portions at an outer circumferential surface of the inner clip; and an outer clip formed with a plurality of second holding portions at an inner circumferential surface of the outer clip. The inner clip and the outer clip are connected to each other so as to hold the wire coil between the first holding portions and the second holding portions.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: August 13, 2013
    Assignee: Aisin Seiko Kabushiki Kaisha
    Inventors: Toshiya Sugiyama, Jun Abiko, Yasutoshi Yamada, Hiroyuki Nagata
  • Patent number: 8461741
    Abstract: A support system is provided for a dynamoelectric machine having a stator and stator bars connected to a connection ring assembly. The support system includes at least one stator bar support bracket and one or more support rings connected to the stator bars. A connection ring support bracket supports the connection ring assembly. A mount is connected to the connection ring support bracket. The mount permits axial movement of the stator bars, the stator bar support bracket, the support rings, and the connection ring assembly due to thermal expansion experienced during operation of the dynamoelectric machine.
    Type: Grant
    Filed: October 14, 2010
    Date of Patent: June 11, 2013
    Assignee: General Electric Company
    Inventor: David Norwood Dorsey
  • Patent number: 8461742
    Abstract: A connection ring assembly and connection ring support system for a dynamoelectric machine is provided. The connection ring assembly includes a plurality of connection rings, and a clamp element disposed around a portion of the connection rings. The clamp element provides axial and tangential support to the plurality of connection rings. The connection ring support system includes one or more primary spring bars connected to the connection ring assembly. The primary spring bars permit radial and tangential movement of the connection ring assembly. One or more secondary spring bars are connected to the primary spring bars, and permit axial movement of the connection ring assembly.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: June 11, 2013
    Assignee: General Electric Company
    Inventors: Jayashankar KN, Sanjeev Kumar Jha, Shravan Kumar Bhagavatula, Santhosh Kumar Kompally
  • Patent number: 8441166
    Abstract: A device (10) for connecting together end winding parts (1) of stator bars (2) of an electric generator includes a first and a second element (11, 12) having sloped facing surfaces (13) defining two trapezoidal seats each housing a trapezoidal cursor (14), and one or two screws (15), axially fixed and rotatably movable with respect to the first and second element (11, 12) and having a threaded portion inserted in a threaded through hole (17) of the cursor (14).
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: May 14, 2013
    Assignee: ALSTOM Technology Ltd.
    Inventors: Hossein Safari Zadeh, Damir Novosel
  • Patent number: 8339011
    Abstract: A rotor assembly for an electromechanical device includes a molded wire support. The wire support has a body including a first side spaced from a second side and a hole extending through the sides and configured to receive a shaft. The body includes a wall about the hole extending to the first side. At least one end turn support extends outwardly from the wall and is configured to support wires. A molded pocket extends into the wall from the second side without penetrating through to the first side.
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: December 25, 2012
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Henry R. Vanderzyden
  • Patent number: 8336921
    Abstract: A rotary joint of the present invention maintains cryogenic temperature of a supplying refrigerant flowing through a fluid passage, and makes available to lubricate a seal face by the supplying refrigerant as well as to minimize a running cost for the refrigerant.
    Type: Grant
    Filed: February 13, 2009
    Date of Patent: December 25, 2012
    Assignee: Eagle Industry Co., Ltd.
    Inventors: Hidekazu Takahashi, Mami Uchiyama
  • Patent number: 8222780
    Abstract: Embodiments of the invention relate generally to lead path configurations in generator rotors and, more particularly, to a support apparatus for a main lead and generator rotors incorporating such a support apparatus. In one embodiment, the invention provides a support apparatus for a main lead of a generator rotor, the support apparatus comprising: a cross-sectionally L-shaped body having: a first portion; and a second portion substantially perpendicular to the first portion, wherein the first portion includes an arcuate first surface for interfacing with a centering ring of the generator rotor and an arcuate second surface adapted to be substantially parallel to a rotor shaft of the generator rotor; a main lead passage extending along the arcuate first surface of the first portion and through the second portion.
    Type: Grant
    Filed: October 25, 2010
    Date of Patent: July 17, 2012
    Assignee: General Electric Company
    Inventors: Sanjeev Kumar Jha, Richa Awasthi, James Jonathan Grant, Madhu Bharadwaj Sridharan
  • Patent number: 8203251
    Abstract: A stator includes a stator core, a stator coil comprised of a plurality of electric wires, and at least one restraint. Each of the electric wires has a plurality of in-slot portions received in slots of the stator core and a plurality of turn portions that are located outside of the slots to connect the in-slot portions. The restraint is mounted to end parts of the turn portions belonging to a turn portion group of the electric wires to restrain relative radial movement between the turn portions of the turn portion group. All the turn portions of the turn portion group protrude from the same slot of the stator core. The end parts of the turn portions respectively adjoin the in-slot portions of the electric wires received in the same slot of the stator core and align with each other in a radial direction of the stator core.
    Type: Grant
    Filed: April 27, 2010
    Date of Patent: June 19, 2012
    Assignee: Denso Corporation
    Inventors: Atsuo Ishizuka, Shinji Kouda
  • Patent number: 8193674
    Abstract: An arrangement having at least two generator bars for a stator of an electrical generator which are electrically connected to one another via a respective bar end is characterized, according to the invention, by the fact that the respective bar ends, which are electrically connected to one another, of the at least two generator bars are braced with respect to one another by means of a tape.
    Type: Grant
    Filed: November 23, 2006
    Date of Patent: June 5, 2012
    Assignee: Siemens Aktiengesellschaft
    Inventors: Waldemar Kowalski, Christoph Lehmann, Claus-Georg Richter, Karlheinz Spiess
  • Patent number: 8134268
    Abstract: A high speed aircraft generator may utilize a prefabricated crossover subassembly to interconnect field coils. The crossover may include two attachment leads interconnected with a section of braided wire. The braided wire may remain free of brazing filler metal after the crossover subassembly is brazed into position between field coils of the generator. Consequently, the crossover may remain flexible and may have reduced susceptibility to fatigue failure that may otherwise result from circumferential relative displacement of the field coils from one another during changes of rotational speed of the field coils.
    Type: Grant
    Filed: January 9, 2009
    Date of Patent: March 13, 2012
    Assignee: Honeywell International, Inc.
    Inventors: Simon Waddell, David Kane
  • Patent number: 8120227
    Abstract: A rotor of a rotary electric machine comprising a rotor shaft, a stack of laminations, which is coaxial to the rotor shaft and which comprises at least two radially-projecting poles, a field coil which is wound around each pole, such that the ends of the coil project out axially in relation to each external axial end radial face of the lamination stack and two plates for supporting the lamination stack, which are disposed axially on either side of the stack, housings being provided in the internal radial face of each plate for receiving the coil ends. At least one of the housings comprises a contact surface with the external radial face of the associated coil end.
    Type: Grant
    Filed: June 16, 2006
    Date of Patent: February 21, 2012
    Assignee: Valeo Equipements Electriques Moteur
    Inventors: Virginie Leroy, Marc Tunzini
  • Patent number: 8115352
    Abstract: A dynamoelectric machine includes a rotor having a plurality of adjacent coils; a spaceblock disposed between adjacent coils so as to define first and second cavities adjacent the spaceblock and between mutually adjacent coils; and the spaceblock includes a channel disposed in a coil facing surface of the spaceblock for intercepting and redirecting a circulating coolant flow to the first cavity.
    Type: Grant
    Filed: March 17, 2009
    Date of Patent: February 14, 2012
    Assignee: General Electric Company
    Inventors: Shriniwas Ananda Neje, Rebinth Jose Robin, Samir Armando Salamah, Vidyapati Tiwari
  • Patent number: 8084902
    Abstract: An end plate for a generator includes an end plate generally cylindrical and having a central bore to receive a rotor shaft. The end plate has a radially inner boss and a radially outer boss. The radially outer boss is positioned radially outwardly of windings in a generator. The radially inner boss is positioned radially inwardly of the windings in a generator. A main core assembly, a rotor, and a generator incorporating the end plates are all disclosed and claimed.
    Type: Grant
    Filed: May 6, 2009
    Date of Patent: December 27, 2011
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Glenn C. Lemmers, Jr., Scott R. Ganong
  • Patent number: 8084914
    Abstract: A downhole electric motor device has a longitudinally extending tubular housing; a stator part deployed within the tubular housing; a stator coil winding looped through the stator part with an end turn having an apex; and a connecting device connecting between at least one of the coil windings and an end of the housing adjacent to an end of the stator part, thereby supporting the coil winding.
    Type: Grant
    Filed: January 26, 2009
    Date of Patent: December 27, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: Patrick M. McCartney, David Fielder
  • Patent number: 8049377
    Abstract: A hydrogen cooled generator having an axis and a plurality of phases comprises a main casing section enclosing a stator with windings; a casing end section; at least one end winding disposed in the casing end section; a toroidal duct formed on at least one of the casing end section and the main casing section having a bottom wall and two side walls, wherein at least one of the bottom wall and the two side walls shares a wall of the casing end section so as to form a common wall; and at least one bushing penetrating the common wall and inclined towards the axis of the generator, the at least one bushing having a first end connected to the at least one end winding and a second end terminating in the toroidal duct.
    Type: Grant
    Filed: June 10, 2009
    Date of Patent: November 1, 2011
    Assignee: Alstom Technology Ltd
    Inventors: Reinhard Joho, Andre Arndt
  • Patent number: 8049393
    Abstract: 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 end emerging axially from the rotor yoke so as to form an end winding; and a retaining device including a plurality of radial bolts, each of the plurality of radial bolts having a head fixedly connected to a shank, wherein the retaining device retains the end winding against a centrifugal force acting on the end winding.
    Type: Grant
    Filed: September 29, 2009
    Date of Patent: November 1, 2011
    Assignee: Alstom Technology Ltd
    Inventors: Alexander Schwery, Matthias Schmid, Josef Schwanda, Susanne Binder
  • Patent number: 8013490
    Abstract: An armature includes a plurality of armature elements, wherein each of the armature elements has an armature element core that has a predetermined core length and has end faces spaced apart in a core length direction and side faces connecting the end faces, a first coil that is formed by winding a wire over the side faces and the end faces, a second coil that is formed, after forming the first coil, by winding a wire over the side faces and the end faces so that on the side faces the second coil is formed contiguously to the first coil, and an end structure member that is provided on each of the end faces, has a first-winding face and a second-winding face on which the wires of the first coil and the second coil are wound, respectively, and has a riser formed between the first-winding face and the second-winding face, the end structure member in which a vicinity of the riser on the second-winding face is positioned farther from the each of the end faces than the first-winding face.
    Type: Grant
    Filed: October 15, 2009
    Date of Patent: September 6, 2011
    Assignee: Mitsubishi Electric Corporation
    Inventors: Tatsuro Hino, Hiroyuki Akita, Takumi Nakaue
  • Patent number: 8004145
    Abstract: 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 on the inner diameter side of the lead conductor, and a centrifugal force-resistant member for holding a centrifugal force acting on the lead conductor is interposed between the stopper and the inner diameter side of the winding holding portion.
    Type: Grant
    Filed: May 13, 2009
    Date of Patent: August 23, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Yukiyoshi Yanagisawa, Takeshi Kuwahara
  • Patent number: 7994681
    Abstract: A motor having a rotor and a stator that houses the rotor in a rotatable manner is herein provided. One of the rotor and the stator comprises at least one permanent magnet. The other of the rotor and the stator comprises at least one core that faces the at least one permanent magnet, and at least one coil that magnetizes the at least one core. The core comprises at least one extension plate that is formed on at least one end face of the core in an axial direction. The extension plate extends parallel to rotation axis of the rotor, and has a magnetic anisotropy whose axis of easy magnetization is substantially parallel to the rotation axis of the rotor.
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: August 9, 2011
    Assignee: Aisan Kogyo Kabushiki Kaisha
    Inventor: Masaki Ikeya
  • Patent number: 7982359
    Abstract: 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 includes a top surface that has a curvature and/or at least one cavity. Each end coil cap may include at least one support. The salient pole machine may also include at least one fan assembly independent of the rotating field assembly. In a preferred embodiment, the salient pole machine includes at least one mounting plate, wherein each fan assembly is mounted on the mounting plate. The inter-pole caps and the end coil caps preferably comprise composites, polymers, alloys, ceramics, or naturally occurring materials.
    Type: Grant
    Filed: October 2, 2007
    Date of Patent: July 19, 2011
    Assignee: Emerson Electric Co.
    Inventors: Joseph B. McCabe, Brian N. Cox, Louis R. Myers, Jacques Andre Saint-Michel, John T. Fowler, Jerhod T. Smithback, Joshua A. Lorenz
  • Patent number: 7966717
    Abstract: A rotor pole crossover connection joint for use in a rotating electrical machine is disclosed. The connection joint integrally couples a bottom rotor coil strap to a rotor pole crossover connector with a single piece connector that reduces, distributes or otherwise tolerates stress concentrations in the connector. A corresponding method of forming a rotor pole crossover connection and a rotor assembly including a rotor pole crossover connection joint are also disclosed.
    Type: Grant
    Filed: August 11, 2010
    Date of Patent: June 28, 2011
    Assignee: Siemens Energy, Inc.
    Inventors: Randy E. Whitener, Justin England, Jiping Zhang, Peter J. Clayton, Thomas L. Schuchart, William C. Gardner
  • Publication number: 20110133579
    Abstract: A rotor assembly for an electromechanical device includes a molded wire support. The wire support has a body including a first side spaced from a second side and a hole extending through the sides and configured to receive a shaft. The body includes a wall about the hole extending to the first side. At least one end turn support extends outwardly from the wall and is configured to support wires. A molded pocket extends into the wall from the second side without penetrating through to the first side.
    Type: Application
    Filed: December 7, 2009
    Publication date: June 9, 2011
    Inventor: Henry R. Vanderzyden
  • Patent number: 7956507
    Abstract: In a rotor for a rotating electrical machine, a flange of an insulating bobbin is formed with a first hook portion and a second hook portion. The first hook portion directs a lead of a field coil both against the winding direction of the field coil and radially inward. The first hook portion has a first groove in which is hooked a proximal portion of the lead. The second hook portion directs the lead axially outward. The second hook portion has a second groove which has an open end on a radially inner periphery of the second hook portion, a closed end positioned radially outward of the open end, and a neck between the open and closed ends. The second hook portion has an intermediate portion of the lead hooked in the second groove between the neck and closed end of the second groove.
    Type: Grant
    Filed: March 19, 2009
    Date of Patent: June 7, 2011
    Assignee: Denso Corporation
    Inventor: Takashi Tokizawa
  • Patent number: 7939977
    Abstract: A rotor for a rotary electrical device to be arranged to face to a stator, comprises a rotor iron core extending axially and including a plurality of slots arranged with a predetermined circumferential interval, a rotor coil contained by the slots, a coil support member of electrically insulating property arranged between parts of the rotor coil at an axial end of the rotor coil, and a retaining ring covering the coil support member and the axial end of the rotor coil, the coil support member has two fitted portions and a connecting portion connecting the fitted portions to each other to form H-shape of cross section and to form a space between the rotor coil and each of opposite sides of the connecting portion, and the coil support member further has a communicating path communicating to the spaces.
    Type: Grant
    Filed: January 23, 2007
    Date of Patent: May 10, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Kenichi Hattori, Tadaaki Kakimoto, Akitomi Semba, Mitsuru Saeki, Takashi Shibata, Manabu Suzuki, Naomi Okamoto
  • Patent number: 7936116
    Abstract: An objective is to provide a motor stator that may achieve: a reduction in parts costs by shaping coil ends so that length thereof is reduced, thereby reducing the amount of use of copper, and minimizing the amount of use of binding strings for securing the coil ends in place; a reduction in manufacturing process costs by a structure which allows a protector and a wire lead outlet part to be easily assembled; and then an improvement in quality of a stator by firmly holding the coil ends and the protector.
    Type: Grant
    Filed: February 26, 2007
    Date of Patent: May 3, 2011
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hiroki Asou, Mamoru Kawakubo, Mineo Yamamoto, Hiroyuki Ishii, Tougo Yamazaki
  • Patent number: 7928625
    Abstract: Dynamoelectric device and stator bar therefor, where the stator bar includes a linear portion for positioning in a slot of a stator core, the slot extending in a radial direction relative to an axis of the stator, and an end arm portion having an involute-on-cone bend relative to the linear portion and an elongated cross-section that is substantially aligned with the radial direction of the slot.
    Type: Grant
    Filed: February 19, 2009
    Date of Patent: April 19, 2011
    Assignee: General Electric Company
    Inventor: James Oldham Lambert
  • Publication number: 20100320860
    Abstract: An end turn support for a generator includes a wire support. The wire support extends along an axis in a radial direction from an axis of rotation. The wire support defines an arcuate wire receipt surface.
    Type: Application
    Filed: June 18, 2009
    Publication date: December 23, 2010
    Inventors: Dhaval Patel, Alan D. Hanson, Glenn W. Hufstedler
  • Patent number: 7855487
    Abstract: 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 an inner periphery of an end turn support in a generator.
    Type: Grant
    Filed: December 5, 2008
    Date of Patent: December 21, 2010
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Glenn C. Lemmers, Jr., Jan Henry Abels
  • Patent number: 7830052
    Abstract: An electric machine includes a shaft and a rotor carried by the shaft and having a rotor body, a plurality of rotor windings carried by the rotor body, and a retaining ring surrounding the rotor windings adjacent an end of the rotor body. An electrically conductive stud extends radially outwardly from the shaft adjacent the end of the rotor body. An electrically conductive member includes a first end section coupled to the electrically conductive stud and having a loop shape, a second end section coupled to a corresponding one of the rotor windings, and an intermediate section between the first and second end sections. An insulation assembly is between the shaft and the retaining ring and surrounding the intermediate section to define at least one gap with adjacent portions thereof.
    Type: Grant
    Filed: May 9, 2008
    Date of Patent: November 9, 2010
    Assignee: Siemens Energy, Inc.
    Inventors: William C. Gardner, David J. Shore, Phillip R. Keaton