Nonatmospheric Gas Patents (Class 310/55)
  • Patent number: 10704704
    Abstract: An electric generator has a rotor shaft to be driven to rotate with a generator rotor. A generator stator is positioned adjacent the generator rotor. A housing surrounds the generator rotor and the generator stator. The generator rotor shaft extends outwardly of the housing. A seal seals a location where the rotor shaft extends outwardly of the housing. A vent valve is configured to vent of the interior of the housing when the rotor shaft is not rotating. An electrical assembly is also disclosed. An electrical assembly is also disclosed.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: July 7, 2020
    Assignee: Hamilton Sundstrand Coproration
    Inventor: Andrew P. Grosskopf
  • Patent number: 10554090
    Abstract: A shaft seal device mounted rotating electrical machine includes; a rotating electrical machine which includes a rotating shaft equipped with a shaft seal device having an inlet portion and an outlet portion of seal oil, a main oil tank in which the seal oil supplied to the shaft seal device is stored, a seal oil cleanup tank which includes an inlet portion connected to an outlet portion of the main oil tank, and has an oil level regulating valve, a degassing pump which includes an inlet portion connected to an outlet portion of the seal oil cleanup tank, a pressure regulating valve which is disposed between the outlet portion of the seal oil cleanup tank and an outlet portion of the degassing pump, a differential pressure control valve which is disposed between the outlet portion of the degassing pump and the inlet portion of the shaft seal device.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: February 4, 2020
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Shohei Tanaka, Yasuhiro Tohoda
  • Patent number: 10193419
    Abstract: A baffle train for turbine generator air baffles independently aligns axial position of the composite air baffle along a stator core bore axial slot. Air baffle sectors that form the composite air baffle are coupled to baffle blocks of the baffle train. The baffle blocks are positioned axially along at least one axial spacer rod corresponding to the desired position of the composite air baffle within the stator bore. The baffle blocks are locked into position by a locking engagement member. Wedge blocks are axially spaced on a reciprocating wedge block rod within the stator slot below the baffle blocks. A biasing element, such as arched leaf spring, tensions the baffle block radially inwardly toward the stator bore when the wedge blocks are reciprocated below the baffle blocks.
    Type: Grant
    Filed: April 2, 2015
    Date of Patent: January 29, 2019
    Assignee: SIEMENS ENERGY, INC.
    Inventor: Benjamin Todd Humphries
  • Patent number: 10141815
    Abstract: A variable pressure electric generator, including a gas cooled rotor arranged along a centerline of the generator; a gas cooled core arranged coaxially and surrounding the rotor; a plurality of coils arranged within the core; a stator frame arranged to fixedly support the core and rotationally support the rotor; a gas cooling system that circulates a cooling gas within the generator; a pressurizing system that operatively pressurizes the cooling medium to a maximum pressure of 2 bar relative to atmospheric pressure, wherein the pressurizing system continuously determines the cooling medium pressure based upon operational requirements; and a low pressure frame that surrounds a plurality of the rotor and an entirety of the core and stator windings, the frame configured to operatively contain an internal pressure of 2 bar relative to atmospheric pressure.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: November 27, 2018
    Assignee: SIEMENS ENERGY, INC.
    Inventors: Michael D. Garmon, Raul Ricardo Rico, Bobby A. Warren
  • Patent number: 10135320
    Abstract: Described is a large, thin frame gas cooled electric generator for power generation, having a gas cooled rotor arranged along a centerline of the generator; a gas cooled core arranged coaxially and surrounding the rotor; a plurality of coils arranged within the core; a support frame arranged to fixedly support the core and rotationally support the rotor; a gas cooling system that circulates a cooling gas within the generator; a pressurizing system that variably pressurizes the cooling medium to a maximum pressure of one bar relative to atmospheric pressure; and a pressure boundary member that surrounds a plurality of the rotor and an entirety of the core and stator windings, the frame configured to operatively contain an internal cooling medium pressure of 2 bar relative to atmospheric pressure.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: November 20, 2018
    Assignee: SIEMENS ENERGY, INC.
    Inventors: Michael D. Garmon, Raul Ricardo Rico, Bobby A. Warren
  • Patent number: 10001301
    Abstract: Heat pump configurations that provide continuous heat transfer capabilities without any need for electricity. The overall system includes a rotatable hourglass structure situated within a sphere or ovoid container with internal tracks aligned with wheels on the hourglass. With a heat collection component situated on the underside of the container, the rotatable hourglass, being constructed of suitable heat transfer materials, absorb the collected heat in the lower portion of the container, thereby causing the air present therein to expand, forcing a plunger upward from one hourglass chamber to the other. The plunger effectuates operation of a magnetic switch to release the hourglass to rotate and then oscillate from one position to another until the heat collection operation discontinues. With a coolant introduced within the heated chamber (and drawn through pressure differential), heat can be transferred thereto. The heated coolant is then transferred to a reservoir for future utilization.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: June 19, 2018
    Inventor: Brad Daviet
  • Patent number: 9939866
    Abstract: Systems, operations, management and monitoring of controlling and managing power source performance by providing an operating power source device and providing one or more sensors to monitor operation of the power source device. Operational data of the power source device is collected via the one or more sensors and stored to both a local and remote database. The collected operational data is analyzed to detect and identify any operational errors of the power source device, as well as obtaining external and/or internal operating conditions of the operating power source device. Any identified operational errors of the power source device are corrected for using at least the external and/or internal operating conditions.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: April 10, 2018
    Assignee: URIPP LLC
    Inventor: Deborah DePaoli
  • Patent number: 9601958
    Abstract: A stator portion includes a stator and a bus bar member. The stator includes three coil groups, each coil group includes two or more coils defined by a single conducting wire including a jumper wire. The bus bar member includes three first bus bars to which end portions on one side of the conducting wires of the three coil groups are connected, each of which includes an external connection terminal, a second bus bar defining a neutral point to which end portions on the other side of the conducting wires are connected, and a resin holder which retains the three first bus bars and the second bus bar. The three first bus bars and the second bus bar overlap only in a radial direction centered on the central axis or an axial direction, and the maximum number of bus bars which overlap is 2.
    Type: Grant
    Filed: October 17, 2013
    Date of Patent: March 21, 2017
    Assignee: NIDEC CORPORATION
    Inventors: Yuhei Yamaguchi, Hisashi Fujihara
  • Patent number: 9525325
    Abstract: A liquid-cooled rotary electric machine including jacket defining a heat transfer surface in conductive thermal communication with a stator and having an axial end portion partially enclosing an interior volume. A heat source is in conductive thermal communication with a wall of the jacket axial end portion. A fluid channel traverses the heat transfer surface between opposite axial ends of the jacket, and a fluid passage in fluid communication with the fluid channel is defined by jacket axial end portion walls. A flow path of liquid coolant through the machine is defined by the fluid channel and the fluid passage between a machine coolant inlet and outlet, whereby at least a portion of heat transferable between the heat source and the fluid passage is convectively transferable between the jacket axial end portion walls and liquid coolant along the flow path. Also a method for liquid-cooling a rotary electric machine.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: December 20, 2016
    Assignee: Remy Technologies, LLC
    Inventor: Bradley D. Chamberlin
  • Patent number: 9461523
    Abstract: An electro-dynamic machine has a rotor and stator with a gap therebetween. The machine has a frame defining a hollow interior with end cavities on axially opposite ends of the frame. A gas circulating system has an inlet that supplies high pressure gas to the frame interior and an outlet to collect gas passing therethrough. A liquid coolant circulating system has an inlet that supplies coolant to the frame interior and an outlet that collects coolant passing therethrough. The coolant inlet and gas inlet are generally located on the frame in a manner to allow coolant from the coolant inlet to flow with gas from the gas inlet to the gap. The coolant outlet and gas outlet are generally located on the frame in a manner to allow the coolant to be separated from the gas with the separated coolant and gas collected for circulation through their respective circulating systems.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: October 4, 2016
    Assignee: Baldor Electric Company
    Inventor: Boris A. Shoykhet
  • Patent number: 9395111
    Abstract: A method for cooling a compressor motor (170) and a cooling circuit utilizing refrigerant that originates in the condenser (30) to cool a motor (170) and electromagnetic bearings (196, 206). The motor drives a compressor (20), while the electromagnetic bearings support the motor rotor (178) during operation of the compressor. Liquid refrigerant from the condenser is expanded into a two-phase mixture, passed over the stator, expanded a second time, passed over the bearings and between the stator and rotor, before being returned to an evaporator (50).
    Type: Grant
    Filed: October 23, 2013
    Date of Patent: July 19, 2016
    Assignee: Johnson Controls Technology Company
    Inventors: Steven T. Sommer, Jeb W. Schreiber, Steven J. Estes
  • Patent number: 9312733
    Abstract: An electromagnetic machine stator has a common pole and a plurality of excitation poles. Each excitation pole has a coil wound around it for inducing a magnetic flux through the excitation pole. The common pole that does not have a coil wound around it for inducing a magnetic flux. A flux barrier, disposed within the common pole, inhibits the flow of flux from one part of the common pole across the flux barrier to another part of the common pole. The flux barrier is less conducive to the flow of flux than is the common pole.
    Type: Grant
    Filed: October 31, 2011
    Date of Patent: April 12, 2016
    Assignee: REGAL BELOIT AMERICA, INC.
    Inventor: Krishnan Ramu
  • Patent number: 9148034
    Abstract: A system for cooling an electrical machine is disclosed. The electrical machine includes a rotor, a stator, and at least one cooling pathway extending through the stator. During operation of the electrical machine, fluid flows through the pathway and carries away heat generated by the electrical machine.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: September 29, 2015
    Assignee: DEERE & COMPANY
    Inventor: Mark John Cherney
  • Patent number: 9059617
    Abstract: A connection arrangement is provided for the windings of an electric machine and includes a plurality of phase connections, each phase connection including conductors, each conductor having an annular or annular sector shape and includes a plurality of connecting ends. The conductors of each phase connection are radially shifted.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: June 16, 2015
    Assignee: ALSTOM TECHNOLOGY LTD.
    Inventors: Francesco Stallone, Hossein Safari Zadeh, Konstantinos Ballos, Johann Haldemann
  • Publication number: 20150133303
    Abstract: An electrical generator is provided.
    Type: Application
    Filed: December 30, 2013
    Publication date: May 14, 2015
    Applicant: TransLife Energy Solutions, Inc.
    Inventor: Paul M. Gregory
  • Patent number: 8952582
    Abstract: A stator arrangement for an electrical machine includes a stator having a stator stack consisting of a plurality of axially adjacently disposed metal plates. The arrangement further includes a cooling device in the shape of at least one heat pipe. The at least one radial channel extends between respective axially adjacently disposed metal plates, wherein the at least one heat pipe is located within the at least one radial channel.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: February 10, 2015
    Assignee: Siemens Aktiengesellschaft
    Inventor: Jean Le Besnerais
  • Publication number: 20150022036
    Abstract: Various embodiments include apparatuses adapted to include a dynamoelectric machine rotor with a modified outer surface. In some embodiments apparatuses include a dynamoelectric machine rotor including a rotor body having a spindle, pole regions, the pole regions having a non-uniform radial distance from an axis of rotation of the rotor to an outer surface of the pole regions and a plurality of slots in the outer surface of the rotor body, the plurality of slots being spaced apart in a circumferential direction of the rotor body, each of the plurality of slots extending in an axial direction of the rotor body.
    Type: Application
    Filed: July 19, 2013
    Publication date: January 22, 2015
    Applicant: General Electric Company
    Inventors: Venkata Subramanya Sarma Devarakonda, Patrick Robert Davis, James Jonathan Grant, Paul August Quail, John Russell Yagielski
  • Patent number: 8841803
    Abstract: A superconducting rotating machine having a cooler for a rotator is provided. The superconducting rotating machine includes a rotator wound with a superconducting coil, a stator enclosing the rotator and separated therefrom by a predetermined gap, the cooler having a cold head directly attached to the rotator and at least one compressor connected with the cold head, and a flexible coupling disposed between the cold head and the compressor and enabling a cryogenic refrigerant to flow therein. The cold head is directly connected to the rotator, and the cold head and the compressor are driven using the flexible coupling, so that it is possible to prevent vibration of the compressor and enhance cooling efficiency by thermally separating the cryogenic cold head from the compressor.
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: September 23, 2014
    Assignee: Doosan Heavy Industries & Construction Co., Ltd.
    Inventors: Jung Hyun Lee, Je Heon Jung, Woon Sik Kwon, Heui Joo Park, Chi Hwan Lee, Yeong Chun Kim
  • Patent number: 8823226
    Abstract: A sealed electric generator includes a casing (2) housing a stator (3) and a rotor (4) connected to a shaft (5), wherein the shaft (5) is provided with a duct housing and a lead (10) carrying electric power from an exciter (8) to rotor field windings (9). The duct has a sealing unit for preventing gas contained inside of the casing (2) from reaching the exciter (8). The sealing unit has first and second seals (20, 21) defining between them a chamber (22), such that gas that leaks past a seal (20, 21) enters the chamber (22).
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: September 2, 2014
    Assignee: Alstom Technology Ltd
    Inventor: Markus Roland Wiebe
  • Publication number: 20140239756
    Abstract: A radial vent composite heat pipe system for cooling and increasing the power density of an electrical machine is provided. The system comprises a plurality of radial vent composite heat pipe assemblies each comprising a slot portion thermally connected to a vent portion. The slot portions are disposable within respective stator slots of a stator core pack of a stator assembly of the electrical machine. The vent portions are disposable within stator vents of the stator assembly. The slot portions absorb heat from the stator coils of the stator assembly and transfer the absorbed heat to the vent portions. The vent portions reject the transferred heat into a cooling air flowing through the respective stator vent, thereby rapidly transferring heat from the respective stator coil to the cooling air flowing through stator vent, and thereby greatly increasing the power density of the electrical machine.
    Type: Application
    Filed: February 25, 2014
    Publication date: August 28, 2014
    Applicant: HPEV, Inc.
    Inventors: Mark Hodowanec, Timothy J. Hassett
  • Patent number: 8766498
    Abstract: An electric generator incorporated into a hybrid vehicle including an engine and an electric drive motor and actuated by the engine, comprises a rotor mounted to one end portion of a crankshaft of the engine such that the rotor is rotatable integrally with the crankshaft; a cylindrical accommodating member surrounding an outer periphery of the rotor; and an air outlet provided on a peripheral wall portion of the accommodating member such that the air outlet opens in the vicinity of the outer periphery of the rotor and is tilted in a forward direction of a rotational direction of the rotor and in a radially outward direction.
    Type: Grant
    Filed: December 30, 2011
    Date of Patent: July 1, 2014
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventor: Izumi Takagi
  • Publication number: 20140009014
    Abstract: The invention refers to a direct drive electric generator for a wind turbine provided with rotor salient poles and a ladder-like cryostat for housing superconductive coils and keeping them at a cryogenic temperature while the interior of the cryostat is kept free of coolant. The invention achieves optimal thermal insulation of the coils without the need of a continuous re-filling of the cryostat and ensuring a good distribution of the magnetic field avoiding the use of expensive materials.
    Type: Application
    Filed: July 30, 2013
    Publication date: January 9, 2014
    Applicant: FUNDACION TECNALIA RESEARCH & INNOVATION
    Inventors: Mattia SCUOTTO, Gustavo SARMIENTO MUÑOZ, Maria Jose MERINO AZCÁRRAGA, Javier GARCIA-TEJEDOR PEREZ, Pedro IBAÑEZ EREÑO, Susana APIÑANIZ APIÑANIZ
  • Publication number: 20130334913
    Abstract: A super conducting synchronous machine including a rotor which may rotate in relation to a stator and which has at least one super-conducting winding which is cooled my means of a cooling machine is provided. The cooled areas of the rotor are surrounded at least partially by a vacuum chamber rotating with the rotor. A pump line connecting the vacuum chamber to a vacuum pump is provided in a connection area produced by means of at least two rotational seals, fixed in relation to a rotor and defining the vacuum chamber.
    Type: Application
    Filed: February 22, 2012
    Publication date: December 19, 2013
    Inventors: Michael Frank, Peter Van Hasselt
  • Publication number: 20130320785
    Abstract: Various embodiments of the invention include systems, computer program products, and related methods for managing the purging of a hydrogen-cooled dynamoelectric machine. In various embodiments, a system is disclosed including at least one computing device configured to perform the following: obtain an indication of a fault in an alternating current (AC) power supply to a hydrogen-cooled dynamoelectric machine system; determine a reserve power characteristic of a reserve energy storage device in response to obtaining the indication of the fault in the AC power supply; and extend a pre-purge cycle for the hydrogen-cooled dynamoelectric machine system based upon the reserve power characteristic of the reserve energy storage device.
    Type: Application
    Filed: May 29, 2012
    Publication date: December 5, 2013
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Luis Fernando Magana Cano, Manvinder Singh Chhatwal, Nicola Piccirillo, Robert Samuel Rodick, Ravishankar Bagalur Sampangiramaiah, Jose Donaciano Estrada Zepeda
  • Publication number: 20130257199
    Abstract: An example generator cooling arrangement includes an electrochemical hydrogen pump configured to receive and adjust a fluid containing hydrogen and to provide a refined supply of hydrogen. An electric power generator receives the supply of hydrogen. The refined supply of hydrogen is used to remove thermal energy from the electric power generator.
    Type: Application
    Filed: December 27, 2010
    Publication date: October 3, 2013
    Inventor: Michael L. Perry
  • Patent number: 8338996
    Abstract: A hydrogen cooled generator assembly includes a hydrogen cooled generator and a fundament, wherein the generator is mounted on the fundament, and wherein the fundament includes at least one cavity underneath the generator. The at least one cavity includes at least one terminal box disposed adjacent to the generator and extending downward from the generator for collection of a plurality of electrical links from the generator; at least one collection box disposed beneath the at least one terminal box having a top wall and a first and a second side wall and configured to guide the plurality of electrical links from the at least one terminal box in a further downward direction; a lateral space; and a seal plate covering the lateral space at an upper end of the lateral space.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: December 25, 2012
    Assignee: Alstom Technology Ltd
    Inventors: Michel Verrier, Flore Bouichou
  • Publication number: 20120308414
    Abstract: An inverter-integrated electric compressor is structured to include a suction refrigeration path (61) for intensively flowing a sucked refrigerant (30) therethrough, such that the suction refrigerant path (61) is provided only in the vicinity of a switching device module (105), which is a main heat source in an inverter device portion (101), so that the sucked refrigerant is concentrated in only the vicinity of the switching device module, which is the main heat source in the inverter device portion. This enables effectively cooling the inverter device portion, with the sucked refrigerant, without involving adjustments of operating conditions for a refrigeration cycle.
    Type: Application
    Filed: September 14, 2011
    Publication date: December 6, 2012
    Applicant: PANASONIC CORPORATION
    Inventors: Nobuaki Ogawa, Naomi Goto, Toru Adachi, Minoru Kajitani, Nobuyuki Nishii
  • Publication number: 20120274161
    Abstract: Provided are a rotor core, a method for cooling a rotor core, and a superconducting rotating machine, capable of effectively and uniformly cooling superconducting coils without causing cold brittleness in an extremely low temperature. The rotor core 10, which is made of a substantially hollow cylindrical member of nonmagnetic material, has a cylindrical cavity 13 defined therein and extending in the longitudinal axis of the member. Helium gas 300 is delivered in the rotor core 10 from the proximal to distal sides and vice versa, which ensures a uniform cooling of the rotor core 10. This also ensures a uniform and effective cooling of the superconducting coils.
    Type: Application
    Filed: November 8, 2010
    Publication date: November 1, 2012
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Kiyoshi Aizawa, Katsuya Umemoto, Minoru Yokoyama
  • Patent number: 8256575
    Abstract: Methods and systems for reducing a flow of ambient air into a bearing lubricating oil system are provided. The system includes a lubricating oil bearing cover that is stationary with respect to the bearing wherein the bearing is configured to support a portion of a rotatable machine shaft. The cover includes a first end cap extending radially inwardly towards the shaft such that a cavity surrounding the bearing is formed by the cover and the first end cap and a set of seal rings positioned substantially concentric with the shaft and forming a seal against lubricating oil flow. The seal rings include a plurality of wire bristles extending radially inwardly from the end cap wherein the wire bristles are configured to extend to a surface of the shaft when assembled and the bristles are configured to present a tortuous flow path to gas infiltrating the cavity.
    Type: Grant
    Filed: August 22, 2007
    Date of Patent: September 4, 2012
    Assignee: General Electric Company
    Inventor: Nathan Robert Berberich
  • Patent number: 8222778
    Abstract: According to one embodiment, in a high-voltage bushing of a rotating electric machine, the communicating holes are inclined at least toward a circumferential direction of the hollow conductor or toward a machine external side from a direction vertical to a wall surface of the hollow conductor.
    Type: Grant
    Filed: April 23, 2010
    Date of Patent: July 17, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yasuo Kabata, Yoshihiro Taniyama, Junichi Uematsu, Mikio Kakiuchi, Takashi Ueda
  • Patent number: 8179002
    Abstract: A wind turbine having a generator is provided. The generator includes a rotor and a stator having a stator lamination, one or more flange rings and one or more core rings. The stator lamination includes a plurality of axial flow passages and the one or more core rings include a plurality of core ring axial flow passages that are aligned with the plurality of axial flow passages in the stator lamination. The plurality of axial flow passages in the stator lamination have a substantially triangular cross-sectional shape.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: May 15, 2012
    Assignee: General Electric Company
    Inventors: Thomas Mancuso, Sayantan Bhar, Sandip Shahaji Hirade, Peter Anthony DiLorenzo, Andrew David Maduskuie, Sadeo Ramtahal
  • Publication number: 20120112571
    Abstract: The present invention provides an encapsulated stator assembly comprising: (a) a stator having a stator core and a stator end region; and (b) a ceramic bore tube defining a surface of the stator core; wherein the stator end region is disposed adjacent to the stator core, and wherein the stator end region comprises a plurality of stator armature end-windings, and wherein the stator end region comprises an inwardly-facing stator wall, and wherein the ceramic bore tube and the inwardly-facing stator wall define an interior volume configured to accommodate a rotor, said inwardly-facing stator wall having an inner surface and an outer surface, at least a portion of said inner surface comprising a barrier layer of a conductive metal selected from the group consisting of copper, silver and aluminum, said inwardly-facing stator wall comprising a corrosion resistant metal. Also provided are motors comprising the novel encapsulated stator assemblies.
    Type: Application
    Filed: November 9, 2010
    Publication date: May 10, 2012
    Applicant: GENERAL ELECTRIC COMPANY
    Inventor: Charles Michael Stephens
  • Publication number: 20110309780
    Abstract: Detection of, among other things, seal leakage(s) and/or seal oil contamination for a gas cooled generator are provided. Detectors according to some embodiments of the invention provide mechanisms of early detection of cooling gas, e.g., hydrogen, leakage through leakage sources as well as low purity and high cooling gas consumption problems in a gas cooled generator.
    Type: Application
    Filed: June 17, 2010
    Publication date: December 22, 2011
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Vinodh Kumar Bandaru, Jeffrey James Andritz, James Daniel Antalek, Krishna Swamy Cherukuri, Daniel James Fitzmorris, Anthony James George, Nicola Piccirillo, Sudhanshu Rai
  • Publication number: 20110268593
    Abstract: An electric device includes: a circuit board arranged in cooling medium in a housing and having an electric element and an external coupling electrode, wherein the electric element is sealed in and mounted in a substrate, and the electric element is electrically coupled with the external coupling electrode; an external coupling terminal electrically coupled with the external coupling electrode; and a separation member for separating the external coupling terminal and a connection portion between the external coupling electrode and the external coupling terminal away from the cooling medium.
    Type: Application
    Filed: March 11, 2011
    Publication date: November 3, 2011
    Applicant: DENSO CORPORATION
    Inventors: Masao YAMADA, Satoshi YOSHIMURA, Tetsuo FUJII
  • Publication number: 20110210628
    Abstract: Systems for controlling hydrogen purity in a power plant system are disclosed. In one embodiment, a hydrogen control system for a generator housing includes: a mass flow control system fluidly connected to the generator housing, the mass flow control system being configured to measure a flow rate of a gas mixture extracted from the generator housing and modify the flow rate of the gas mixture across a range of flow rates; and a vent conduit fluidly connected to the mass flow control system, the vent conduit for receiving a portion of the gas mixture from the mass flow control system and feeding the portion of the gas mixture to an outlet.
    Type: Application
    Filed: February 26, 2010
    Publication date: September 1, 2011
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: James Daniel Antalek, Jeffrey James Andritz, Anthony James George, Hans Milton Knuijt, Abby Marie Magro, Kevin Jon O'Dell, Fotios Raftelis, Steven Paul Scarlata
  • Patent number: 8007255
    Abstract: An inverter-integrated electric compressor enhances vibration resistance of an inverter apparatus integrated with a housing without degrading cooling performance, reduction in weight, or the ease of assembly of the inverter apparatus. An inverter-integrated electric compressor has an inverter apparatus integrated with an inverter storage box of housing. The inverter apparatus includes a metal plate secured in an inverter storage box, a plurality of power semiconductor switching elements mounted on the metal plate, a power substrate on which a power-related control circuit for operating the power semiconductor switching elements is mounted, and a busbar assembly formed by integrating a plurality of busbars with an insulator. The metal plate includes a protrusion extending in a width direction perpendicular to a motor shaft direction of an electric motor.
    Type: Grant
    Filed: February 9, 2007
    Date of Patent: August 30, 2011
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Makoto Hattori, Takayuki Takashige, Kazuki Niwa, Koji Nakano, Shunsuke Yakushiji
  • Patent number: 7994665
    Abstract: A rotor for an electrical generator is disclosed, including a rotor body having a circular portion and a cylindrical portion coaxial with the circular portion. A generally cylindrical recess is defined by the cylindrical portion and the first side of the circular portion for receiving a stator. At least one first wall is at least partially spaced apart from the first side of the circular portion, defining at least one chamber therebetween. The chamber has an inlet. An aperture in the at least one first wall defines an outlet of the at least one chamber. At least one second wall extends outwardly from the first side of the circular portion. The at least one second wall has an end portion adjacent to the inlet of the at least one chamber. An internal combustion engine with an electrical generator and a method of cooling an electrical generator are also disclosed.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: August 9, 2011
    Assignee: BRP-Powertrain GmbH & Co. KG
    Inventor: Patrick Raffelsberger
  • Patent number: 7948125
    Abstract: A cooling system is provided for an electric motor and comprises a rotor assembly, an intake assembly, and a first reservoir. The rotor assembly is coupled to and rotatable within a housing, and comprises a rotor having a first and second ends having a first plurality of veins extending therebetween, each vein having an inlet and an outlet. The rotor assembly also comprises a first manifold coupled to and rotatable with the first end of the rotor in fluid communication with the inlets of the first plurality of veins. The intake assembly is coupled to the housing and is in fluid communication with the first manifold. The first reservoir is configured to contain a motor coolant and is coupled to the housing for collecting the motor coolant from the outlets of the first plurality of veins, and for providing a source of motor coolant to the intake assembly.
    Type: Grant
    Filed: August 8, 2008
    Date of Patent: May 24, 2011
    Assignee: GM Global Technology Operations LLC
    Inventors: George R. Woody, Brooks S. Mann, Terence G. Ward
  • Patent number: 7915770
    Abstract: A cooling device for current lines of a superconducting rotating machine, which is capable of removing heat generated from the current lines of the superconducting rotating machine, thereby effectively preventing a superconducting coil from being deformed due to the heat generated from the current lines, is disclosed. The cooling device includes heat conduction members respectively mounted to outer surfaces of the current lines. Each heat conduction member is in contact with an inner peripheral surface of the stator such that the heat conduction member transfers, to the stator, heat generated from a corresponding one of the current lines. The heat conduction member further includes insulators each surrounding a corresponding one of the current lines between a corresponding one of the heat conduction members and a power slip ring arranged in the stator, to thermally insulate the heat generated from the corresponding current line.
    Type: Grant
    Filed: March 11, 2009
    Date of Patent: March 29, 2011
    Assignee: Doosan Heavy Industries & Construction Co., Ltd.
    Inventors: Jung hyun Lee, Je heon Jung, Woon sik Kwon, Heui joo Park, Chi whan Lee, Yeong chun Kim
  • Patent number: 7915771
    Abstract: The invention relates to a salient-pole machine comprising at least one field coil that extends in an axial direction of the salient-pole machine and is located below a pole shoe on a rotor body. Said machine is characterized in that the field coil is pressed against the pole shoe by means of at least one spring that is provided between the field coil and the rotor body and that an axial cooling channel is created in the gap between the field coil and the rotor body that is formed by the spring. The spring is configured in particular as a bent plate spring.
    Type: Grant
    Filed: February 1, 2005
    Date of Patent: March 29, 2011
    Assignee: Siemens Aktiengesellschaft
    Inventors: Haiko Adolf, Günther Hautke, Jens Möbius
  • Publication number: 20110062806
    Abstract: A superconducting rotating electrical machine configuring a motor or generator, includes a base member, a stator supported by the base member, a rotor rotatably provided relative to the stator and including a superconducting material, a rotary shaft supporting the rotor, a cooling portion cooling the stator, a low temperature container forming an accommodating chamber accommodating the stator, the rotor, and a coolant, the accommodating chamber being arranged within the base member, a vacuum heat insulation chamber arranged at an outer side of the accommodating chamber and thermally insulating the accommodating chamber with vacuum, and a bearing positioned a portion of the base member where the accommodating chamber is prevented from being provided and which is exposed to an ambient atmosphere including atmospheric air, the bearing rotatably supporting the rotary shaft.
    Type: Application
    Filed: September 8, 2010
    Publication date: March 17, 2011
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Yoshimasa Ohashi, Nobuo Okumura
  • Patent number: 7888124
    Abstract: A method and apparatus is provided for a system for maintaining hydrogen purity in an electrical power generator where the system monitors the health of the electrical generating system by calculating the time remaining until preventative maintenance is required based on hydrogen usage. The system also monitors the health of the system by detecting the occurrence of major leaks within the electrical power generator and adapting the operation of the system to maintain a desired operating environment.
    Type: Grant
    Filed: June 19, 2007
    Date of Patent: February 15, 2011
    Assignee: Proton Energy Systems
    Inventor: A. John Speranza
  • Publication number: 20100307191
    Abstract: A motor coolant method and system is used to cool a compressor motor (36) in a refrigeration system having a multi-stage compressor (38). The compressor includes a first compressor stage (42) and a second compressor stage (44), the first compressor stage providing compressed refrigerant to an input of the second compressor stage. The motor coolant system has a first connection with the refrigerant loop to receive refrigerant into the motor cavity for cooling, the received refrigerant provided from a system component having a high pressure, and a second connection with the refrigerant loop to return refrigerant to an intermediate pressure greater than an evaporator operating pressure. The pressure inside the motor cavity may be approximately the pressure within the first stage discharge and second stage suction to minimized seal leakage between the motor cavity and the internal pressures of the first and second stage compressors.
    Type: Application
    Filed: December 30, 2008
    Publication date: December 9, 2010
    Applicant: JOHNSON CONTROLS TECHNOLOGY COMPANY
    Inventor: Steven T. Sommer
  • Publication number: 20100270875
    Abstract: According to one embodiment, in a high-voltage bushing of a rotating electric machine, the communicating holes are inclined at least toward a circumferential direction of the hollow conductor or toward a machine external side from a direction vertical to a wall surface of the hollow conductor.
    Type: Application
    Filed: April 23, 2010
    Publication date: October 28, 2010
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yasuo Kabata, Yoshihiro Taniyama, Junichi Uematsu, Mikio Kakiuchi, Takashi Ueda
  • Publication number: 20100264761
    Abstract: A gas treatment machine includes a main gas treatment circuit, connected to a gas compression chamber, a gas compressor, mounted in the compression chamber, a rotating electrical machine, for driving the gas compressor, including at least one coil for the flow of electric current for generating a magnetic flux, and a secondary cooling circuit, transporting gas from the compression chamber to the rotating electrical machine, for cooling this rotating electrical machine. The coil includes at least one toroidal core formed from a rolling of a plurality of turns (20) each consisting of at least one conductor (22) insulated over the length thereof by a primary insulator (24), the rolling which forms the toroidal core in turn being covered with a secondary insulator (26), the primary insulator (24) and the secondary insulator (26) including PolyEtherEtherKetone.
    Type: Application
    Filed: April 9, 2010
    Publication date: October 21, 2010
    Applicant: CONVERTEAM TECHNOLOGY LTD.
    Inventor: Lionel Durantay
  • Patent number: 7816825
    Abstract: A cooling gas ventilation chimney is provided for enhancing the heat transfer of an end region of a dynamoelectric machine. The dynamoelectric machine includes a rotor having a plurality of radial slots. A plurality of coils are seated in the radial slots, and the coils form a plurality of radially stacked turns. The ventilation chimney includes one or more chimney slots defined in at least a portion of the radially stacked turns. The chimney slots extend in a substantially radial direction to the rotor, and some of the chimney slots have an axial or circumferential length different from other chimney slots.
    Type: Grant
    Filed: July 23, 2008
    Date of Patent: October 19, 2010
    Assignee: General Electric Company
    Inventors: Emil D. Jarczynski, Norman J. Suguitan, William D. Gerstler, Christopher Anthony Kaminski, Hendrik P. J. de Bock
  • Patent number: 7816826
    Abstract: A machine has a rotor, that can be rotated about an axis, with a superconductive winding that is coupled in a heat-conducting manner to a central coolant area of a fixed heat conducting body proturding into a hollow of the rotor via a winding carrier and a heat contact gas. The coolant area forms a line system with the line parts thereof, that are laterally connected thereto, and a condenser area of a cold unit, in which a coolant circulates in the line system as result of a thermosiphon effect. To maintain the supply of coolant to the central coolant area, even when the rotor encounters difficulties, the coolant area is provided with a lining of a porous material, preferably a sinter material, having high thermal conductivity.
    Type: Grant
    Filed: February 1, 2006
    Date of Patent: October 19, 2010
    Assignee: Siemens Aktiengesellschaft
    Inventor: Bernd Gromoll
  • Patent number: 7808135
    Abstract: A cooling flow bifurcation member is positioned in an outside radial flow passage of a generator between an end portion of a stator core and a stator flange. The flow bifurcation member includes a main body portion having a tapered surface that transforms a first flow having a first velocity passing into the outside radial flow passage into at least one other flow having another velocity. The at least one other flow is directed along at least one of an outer surface of the end portion of the stator core and the stator flange.
    Type: Grant
    Filed: September 18, 2007
    Date of Patent: October 5, 2010
    Assignee: General Electric Company
    Inventors: Samir Armando Salamah, Richard Nils Dawson, Sandip Hirade, Rebinth J Robin
  • Patent number: 7791230
    Abstract: A rotor is provided for a dynamoelectric machine having one or more windings. The windings have one or more turns, and the turns have one or more outlet ducts that are located near a chimney. When the outlet ducts are stacked one on top of another, they form substantially radially oriented passages. The heat transfer performance of a portion of the rotor can be improved by locating two or more circumferentially spaced radial ducts near the chimney. A chimney can also be formed of one or more chimney slots defined in at least a portion of the turns, where one or more chimney slots extend in a substantially slanted direction to a radial direction of the rotor. A transition region of the rotor can also include one or more diagonal flow channels, which discharge into one or more chimneys.
    Type: Grant
    Filed: October 21, 2008
    Date of Patent: September 7, 2010
    Assignee: General Electric Company
    Inventors: Christopher A. Kaminski, Emil D. Jarczynski, William D. Gerstler, Norman J. Suguitan, Hendrik P. J. de Bock
  • Publication number: 20100187921
    Abstract: A hydrogen cooled generator assembly includes a hydrogen cooled generator and a fundament, wherein the generator is mounted on the fundament, and wherein the fundament includes at least one cavity underneath the generator. The at least one cavity includes at least one terminal box disposed adjacent to the generator and extending downward from the generator for collection of a plurality of electrical links from the generator; at least one collection box disposed beneath the at least one terminal box having a top wall and a first and a second side wall and configured to guide the plurality of electrical links from the at least one terminal box in a further downward direction; a lateral space; and a seal plate covering the lateral space at an upper end of the lateral space.
    Type: Application
    Filed: December 18, 2009
    Publication date: July 29, 2010
    Applicant: ALSTOM TECHNOLOGY LTD
    Inventors: Michel Verrier, Flore Bouichou