Patents by Inventor David Allan Torrey
David Allan Torrey has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20250047185Abstract: A superconducting machine includes a main shaft, an armature with at least one armature winding arranged with respect to the main shaft, a carrier structure arranged circumferentially around the main shaft and defining a circumferential exterior surface, and a plurality of superconducting coils secured to the circumferential exterior surface. Each of the plurality of superconducting coils has a first common polarity. The superconducting machine further includes a void space between each of the plurality of superconducting coils. Further, each void space has a second common polarity which is in opposition of the first common polarities of the superconducting coils.Type: ApplicationFiled: December 7, 2021Publication date: February 6, 2025Inventors: Jaime Renedo Anglada, Michael Parizh, David Allan Torrey, Nidhishri Tapadia, Anbo Wu
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Patent number: 12212212Abstract: A superconducting generator including an armature configured to be rotated via a shaft and a stationary field disposed concentric to and radially outward from the armature. The stationary field including a superconducting field winding and a vacuum vessel having an inner wall of one of a non-magnetic material or a paramagnetic material facing the armature, an opposed outer wall of a ferromagnetic material and a plurality of sidewalls coupling the inner wall and the opposed outer wall. The superconducting field winding is disposed in the vacuum vessel. A wind turbine and method are additionally disclosed. The wind turbine includes a rotor having a plurality of blades. The wind turbine further includes a shaft coupled to the rotor. Moreover, the wind turbine includes the superconducting generator coupled to the rotor via the shaft.Type: GrantFiled: July 9, 2019Date of Patent: January 28, 2025Assignee: GENERAL ELECTRIC RENOVABLES ESPAÑA, S.L.Inventors: Alexander Kagan, David Allan Torrey, Michael Parizh, Tiziana Bertoncelli, Minfeng Xu
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Patent number: 11984259Abstract: An electrical generator and method for operating the same are provided. Accordingly, the generator includes a non-rotatable component supporting a field winding assembly and a rotatable component oriented to rotate relative thereto. The generator also includes an armature winding assembly fixedly coupled to the rotatable component so as to rotate therewith during operation of the generator. The generator also includes a resistive assembly fixedly coupled to the rotatable component so as to rotate therewith during the operation of the generator. The resistive assembly electrically couples at least two separate phase windings of the armature winding assembly. The resistive assembly is also configured to introduce a resistance into the armature winding assembly in response to an electrical fault.Type: GrantFiled: March 16, 2021Date of Patent: May 14, 2024Assignee: General Electric Renovables España, S.L.Inventors: Nidhishri Tapadia, David Allan Torrey
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Patent number: 11969701Abstract: The system and method of the invention pertains to an axial flux stator is implemented to replace the drive-end magnets and the drive motor. The axial flux stator comprises a control circuit to control the voltage and current provided to the stator, to measure the torque and speed of rotation, and to measure the magnetic flux and magnetic flux density produced by the axial flux stator and impeller magnets, individually or in combination. The axial flux stator comprises a plurality of current carrying elements to produce magnetic flux in an axial direction and drive the impeller.Type: GrantFiled: November 28, 2020Date of Patent: April 30, 2024Assignee: Global Life Sciences Solutions USA LLCInventors: James Pellegrino Alexander, Klaus Gebauer, David Allan Torrey, Ashraf Said Atalla, Sima Didari, Richard Lee Damren
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Publication number: 20240038428Abstract: An electrical generator and method for operating the same are provided. Accordingly, the generator includes a non-rotatable component supporting a field winding assembly and a rotatable component oriented to rotate relative thereto. The generator also includes an armature winding assembly fixedly coupled to the rotatable component so as to rotate therewith during operation of the generator. The generator also includes a resistive assembly fixedly coupled to the rotatable component so as to rotate therewith during the operation of the generator. The resistive assembly electrically couples at least two separate phase windings of the armature winding assembly. The resistive assembly is also configured to introduce a resistance into the armature winding assembly in response to an electrical fault.Type: ApplicationFiled: March 16, 2021Publication date: February 1, 2024Inventors: Nidhishri Tapadia, David Allan Torrey
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Publication number: 20230378827Abstract: An airgap cooling system (140) for an electric machine (100), the electric machine (100) including a rotor assembly (102) rotatably mounted within a stator assembly (120) and defining an airgap (130) therebetween, wherein the stator assembly (120) comprises a lamination stack (124). The airgap cooling system (140) includes a plurality of distribution passages (142) that extend through the lamination stack (124); a plurality of discharge passages (150) that extend between the plurality of distribution passages (142) and the airgap (130); a cooling manifold (160) defining an annular distribution plenum (164) in fluid communication with the plurality of distribution passages (142), wherein the cooling manifold (160) is configured for receiving a cooling fluid (144) and directing the cooling fluid (144) into the distribution plenum (164), through the distribution passage (142) and the discharge passage (150), and into the airgap (130).Type: ApplicationFiled: December 21, 2022Publication date: November 23, 2023Inventors: Bugra Han Ertas, Joseph John Zierer, JR., Vandana Prabhakar Rallabandi, David Allan Torrey, David William Crall, Mohamed Osama, Adam Tomasz Pazinski, Arthur William Sibbach
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Patent number: 11804746Abstract: An electric machine can include a stator core having a plurality of core teeth that define a plurality of core slots in a surface thereof. A winding can be housed at least partially in the core slots. The winding can include a tube defining a channel through at least a portion thereof and one or more wires disposed along a surface of the tube that is opposite the channel. A cooling system can be operably coupled with the channel and configured to move a cooling fluid through the channel.Type: GrantFiled: August 31, 2020Date of Patent: October 31, 2023Assignee: General Electric CompanyInventors: Karthik K. Bodla, Naveenan Thiagarajan, Mohamed Osama, John Russell Yagielski, David Allan Torrey, Vandana Prabhakar Rallabandi
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Patent number: 11677289Abstract: A powered system that has an electric power system with a stator having plural poles with each pole having a conductive winding that may surround the corresponding pole and may be configured to generate a magnetic field, and a rotor that may be configured to rotate in response to the magnetic field generated by the stator. The at least one of the conductive windings may be insulated with an insulation material configured to conduct heat from the at least one conductive winding while operating at a temperature above 600° C.Type: GrantFiled: October 9, 2019Date of Patent: June 13, 2023Assignee: General Electric CompanyInventors: David Allan Torrey, Anil R. Duggal, Bugra Han Ertas, William D. Gerstler, Jie Jerry Liu, Weijun Yin
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Patent number: 11606017Abstract: An armature is presented. The armature includes an armature winding having a plurality of coils, wherein each coil of the plurality of coils is spaced apart from adjacent coils and comprise includes a first side portion and a second side portion. The armature further includes a first electrically insulating winding enclosure. Furthermore, the armature includes a second electrically insulating winding enclosure disposed at a radial distance from the first electrically insulating winding enclosure, wherein the armature winding is disposed between the first electrically insulating winding enclosure and the second electrically insulating winding enclosure. Moreover, the armature includes an electrically insulating coil side separator disposed between the first side portion and the second side portion of the plurality of coils of the armature winding. A superconducting generator including the armature and a wind turbine having such superconducting generator are also presented.Type: GrantFiled: June 27, 2018Date of Patent: March 14, 2023Assignee: General Electric CompanyInventors: David Allan Torrey, Wei Zhang, Mark Ernest Vermilyea, James William Bray, Siddharth Navinchandra Ashar, Hendrik Pieter Jacobus de Bock, Weijun Yin, Alexander Kagan, Anoop Jassal, Joseph John Zierer, Rammohan Rao Kalluri
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Patent number: 11598327Abstract: A system includes a first working fluid compressor configured to pressurize a working fluid, and a prime mover coupled to the first working fluid compressor and configured to provide a mechanical input into the first working fluid compressor. An exhaust assembly is coupled to the prime mover and is configured to receive exhaust heat from the prime mover, the exhaust assembly including a generator configured to generate electric current based on the exhaust heat received by the exhaust assembly. A second working fluid compressor includes an electric motor electrically and synchronously coupled to the generator and configured to pressurize the working fluid.Type: GrantFiled: November 5, 2019Date of Patent: March 7, 2023Assignee: General Electric CompanyInventors: David Allan Torrey, Douglas C. Hofer, Bugra Han Ertas
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Publication number: 20220320990Abstract: A superconducting generator including an armature configured to be rotated via a shaft and a stationary field disposed concentric to and radially outward from the armature. The stationary field including a superconducting field winding and a vacuum vessel having an inner wall of one of a non-magnetic material or a paramagnetic material facing the armature, an opposed outer wall of a ferromagnetic material and a plurality of sidewalls coupling the inner wall and the opposed outer wall. The superconducting field winding is disposed in the vacuum vessel. A wind turbine and method are additionally disclosed. The wind turbine includes a rotor having a plurality of blades. The wind turbine further includes a shaft coupled to the rotor. Moreover, the wind turbine includes the superconducting generator coupled to the rotor via the shaft.Type: ApplicationFiled: July 9, 2019Publication date: October 6, 2022Inventors: Alexander Kagan, David Allan Torrey, Michael Parizh, Tiziana Bertoncelli, Minfeng Xu
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Patent number: 11437808Abstract: A wind turbine includes a superconducting generator having an armature and a superconducting field winding set. The armature includes at least one multiphase armature winding set having a plurality of armature windings. The superconducting field winding set is separated by a gap from the armature. The superconducting field winding set includes a plurality of field windings, wherein one of the armature winding set and superconducting field winding set is connectable to rotate with a rotating component of the wind turbine and another of the armature and the superconducting field winding set being non-rotating. The wind turbine also includes a controllable power converter coupled to the at least one multiphase armature winding set and a controller configured to control switching operations of the controllable power converter to effect a phase shift among the plurality of armature windings.Type: GrantFiled: October 1, 2019Date of Patent: September 6, 2022Assignee: General Electric CompanyInventors: Nathaniel Benedict Hawes, Yuntao Xu, Nidhishri Tapadia, David Allan Torrey, Anbo Wu
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Patent number: 11387699Abstract: A generator, which may be used in a wind turbine, has a first stationary component carrying a first winding configuration and a second rotating component carrying a second winding configuration. The second rotating component includes a body portion and a plurality of teeth spaced around and extending radially from the body portion. The second winding configuration is arranged in slots defined between adjacent teeth. A housing is arranged around and rotates with the body portion. A heat exchange circuit is arranged on the second rotating component and includes a coolant channel defined in the teeth; a pump; and a heat exchanger arranged on the housing so as to rotate with the housing, the heat exchanger transverse to a rotational direction of the housing.Type: GrantFiled: December 15, 2020Date of Patent: July 12, 2022Assignee: General Electric Renovables Espana, S.L.Inventors: Roelof Willem Schuring, Lana Maria Osusky, Andrew Thomas Cross, David Allan Torrey
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Publication number: 20220190663Abstract: A generator, which may be used in a wind turbine, has a first stationary component carrying a first winding configuration and a second rotating component carrying a second winding configuration. The second rotating component includes a body portion and a plurality of teeth spaced around and extending radially from the body portion. The second winding configuration is arranged in slots defined between adjacent teeth. A housing is arranged around and rotates with the body portion. A heat exchange circuit is arranged on the second rotating component and includes a coolant channel defined in the teeth; a pump; and a heat exchanger arranged on the housing so as to rotate with the housing, the heat exchanger transverse to a rotational direction of the housing.Type: ApplicationFiled: December 15, 2020Publication date: June 16, 2022Inventors: Roelof Willem Schuring, Lana Maria Osusky, Andrew Thomas Cross, David Allan Torrey
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Patent number: 11359470Abstract: A system including a control system is provided. The control system includes a main drive that receives power from a power source and outputs a variable frequency and a variable amplitude AC voltage. The control system also includes a controller to interface with the main drive and an electric machine. The controller receives one or more electrical signals associated with an operating condition of the electric machine from one or more sensors disposed between the electric machine and the main drive. The controller determines correction information based on the received electrical signals and based on a desired operating condition of the electric machine. The controller transmits the correction information to the main drive. The correction information corresponds to a rotor position of the electric machine or operating commands configured to implement the desired operating condition of the electric machine.Type: GrantFiled: September 30, 2016Date of Patent: June 14, 2022Assignee: Baker Hughes Oilfield Operations, LLCInventors: Tomas Sadilek, Nathaniel Benedict Hawes, David Allan Torrey, Di Pan, Kum Kang Huh
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Publication number: 20220069654Abstract: An electric machine can include a stator core having a plurality of core teeth that define a plurality of core slots in a surface thereof. A winding can be housed at least partially in the core slots. The winding can include a tube defining a channel through at least a portion thereof and one or more wires disposed along a surface of the tube that is opposite the channel. A cooling system can be operably coupled with the channel and configured to move a cooling fluid through the channel.Type: ApplicationFiled: August 31, 2020Publication date: March 3, 2022Inventors: Karthik K. Bodla, Naveenan Thiagarajan, Mohamed Osama, John Russell Yagielski, David Allan Torrey, Vandana Prabhakar Rallabandi
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Patent number: 11261847Abstract: A wind turbine is presented. The wind turbine includes a rotor having a plurality of blades. The wind turbine further includes a shaft coupled to the rotor. Moreover, the wind turbine includes a superconducting generator coupled to the rotor via the shaft. The superconducting generator includes an armature configured to be rotated via the shaft. The superconducting generator further includes a stationary field disposed concentric to and radially outward from the armature.Type: GrantFiled: June 27, 2018Date of Patent: March 1, 2022Assignee: General Electric CompanyInventors: David Allan Torrey, Mark Ernest Vermilyea, Siddharth Navinchandra Ashar, Alexander Kagan, Joseph John Zierer, Ernst Wolfgang Stautner, Paul St. Mark Shadforth Thompson
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Patent number: 11128231Abstract: An energy conversion system includes a low-impedance generator having at least one armature winding set. The armature winding set includes a plurality of single-phase coils. The system also includes a current source converter assembly electrically coupled to an armature of the generator. The current source converter assembly includes at least one current source converter that includes a current source rectifier coupled to a current source inverter via a DC link and at least one capacitor across the plurality of single-phase armature coils. The capacitor(s) of the current source converter(s) is configured to absorb high frequency components of current pulses generated by the current source converter so as to minimize current ripple in a current applied to the plurality of single-phase coils.Type: GrantFiled: August 1, 2019Date of Patent: September 21, 2021Assignee: General Electric CompanyInventors: Yuntao Xu, David Allan Torrey
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Publication number: 20210273547Abstract: An armature is presented. The armature includes an armature winding having a plurality of coils, wherein each coil of the plurality of coils is spaced apart from adjacent coils and comprise includes a first side portion and a second side portion. The armature further includes a first electrically insulating winding enclosure. Furthermore, the armature includes a second electrically insulating winding enclosure disposed at a radial distance from the first electrically insulating winding enclosure, wherein the armature winding is disposed between the first electrically insulating winding enclosure and the second electrically insulating winding enclosure. Moreover, the armature includes an electrically insulating coil side separator disposed between the first side portion and the second side portion of the plurality of coils of the armature winding. A superconducting generator including the armature and a wind turbine having such superconducting generator are also presented.Type: ApplicationFiled: June 27, 2018Publication date: September 2, 2021Inventors: David Allan Torrey, Wei Zhang, Mark Ernest Vermilyea, James William Bray, Siddharth Navinchandra Ashar, Hendrik Pieter Jacobus de Bock, Weijun Yin, Alexander Kagan, Anoop Jassal, Joseph John Zierer, Rammohan Rao Kalluri
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Publication number: 20210270239Abstract: A wind turbine is presented. The wind turbine includes a rotor having a plurality of blades. The wind turbine further includes a shaft coupled to the rotor. Moreover, the wind turbine includes a superconducting generator coupled to the rotor via the shaft. The superconducting generator includes an armature configured to be rotated via the shaft. The superconducting generator further includes a stationary field disposed concentric to and radially outward from the armature.Type: ApplicationFiled: June 27, 2018Publication date: September 2, 2021Inventors: David Allan Torrey, Mark Ernest Vermilyea, Siddharth Navinchandra Ashar, Alexander Kagan, Joseph John Zierer, Ernst Wolfgang Stautner, Paul St. Mark Shadforth Thompson