Turbogenerators Patents (Class 290/52)
  • Patent number: 10879826
    Abstract: A motor drive that outputs a sinusoidal waveform utilizes power switching devices operable at high switching frequencies. The switching devices may be operated, for example, between twenty kilohertz and one megahertz. A first filter is included at the output of the motor drive which has a bandwidth selected to attenuate voltage components at the output which are at the switching frequency or multiples thereof such that the output voltage waveform is generally sinusoidal. Additional filtering is included within the motor drive to establish a circulation path for common mode currents within the motor drive. Further, a shield is provided adjacent to those components within the motor drive that may experience voltage or current waveforms at the switching frequency or multiples thereof to cause radiated emissions to establish eddy currents within the EMI shield rather than passing through the shield into the environment.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: December 29, 2020
    Assignee: Rockwell Automation Technologies, Inc.
    Inventors: Zoran Vrankovic, Gennadi Sizov, Gary L. Skibinski, David A. Figie, Yao Da, Todd M. Oestreich, Adam M. Shea
  • Patent number: 10876513
    Abstract: An apparatus for generating electricity from water flow held behind a barrier includes a convergent section connected to a first end of a mixing tube such that a venturi is defined between the end of the convergent section and the mixing tube; a diffuser section connected to a second end of the mixing tube, the diffuser section configured such that the pressure at the exit of the diffuser section is greater than the pressure at the venturi; and a turbine tube comprising a blade assembly having a plurality of blades. The turbine tube is supported in the convergent section and is rotatably mounted, the blades being attached to the inner surface of turbine tube such that water flow past the blades drives the rotation of the turbine tube.
    Type: Grant
    Filed: April 2, 2015
    Date of Patent: December 29, 2020
    Assignee: VERDERG LTD
    Inventor: Peter Roberts
  • Patent number: 10865762
    Abstract: Scalable Fluid Generator Array to utilize an adaptable grid of generators that are controlled by the end user's fluid demand, or available fluid supply, such that flow of fluid through every generator is always near optimum and working with maximum power conversion efficiency. The Fluid Generator Array is scalable to match the end user's power requirements.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: December 15, 2020
    Inventor: Mirko Dusan Vojnovic
  • Patent number: 10860000
    Abstract: It is possible by means of a system simulation device to extract a disturbance mode wherein multiple accident conditions are assumed and to determine control parameters, but when the number of accident conditions increases, a threshold value pertaining to a divergence constant deviates prior to an update period, with the result that an uncontrollable disturbance mode appears.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: December 8, 2020
    Assignee: Hitachi, Ltd.
    Inventors: Shota Omi, Masatoshi Kumagai, Kenichiro Yamane
  • Patent number: 10822100
    Abstract: A propulsion system for an aircraft includes a propulsor; a turbomachine mechanically coupled to the propulsor for driving the propulsor during a combustion operating mode of the propulsion system and mechanically decoupled from the propulsor during an electric operating mode of the propulsion system; and an electrical power source. The propulsion system further includes an electric machine, the electric machine being electrically coupled to the electrical power source and mechanically coupled to the propulsor during the electric operating mode of the propulsion system such that the electric machine drives the propulsor during the electric operating mode of the propulsion system.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: November 3, 2020
    Assignee: General Electric Company
    Inventors: Mustafa Dindar, Keith E J Blodgett
  • Patent number: 10822994
    Abstract: A turbine of a turbocompound engine (10) for extracting energy from the exhaust fluid flow of an and a controller (40) thereof is described. The turbine (10) comprises a housing (30); a turbine wheel (12) rotatably coupled within the housing (30) and rotatable by a fluid flow to provide a rotational output (14); a variable load (34) applying a load to the rotational output; and a controller (40). The controller (40) is configured to: receive information (404) relating to the operating conditions of the turbine (10); calculate an optimum operating velocity (402) of the rotational output based on the operating conditions; and supply a signal (410) to the variable load (34) to vary the load applied to the rotational output (14) in response to said operating conditions so that the rotational output (14) rotates at a corrected operating velocity (408). Such an arrangement increases the ability to operate the turbine at its optimum operating velocity.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: November 3, 2020
    Assignee: Aeristech Limited
    Inventor: Bryn Geoffrey Roddick Richards
  • Patent number: 10814948
    Abstract: An electric power generating submarine tool is used in the Oil and Gas Industry, for powering submarine equipments applied for combating hydrate and also for feeding electric systems in submarine equipments of production, processing and transporting hydrocarbons. The tool includes a hydraulic engine of axial piston, a mechanical coupling, an electric power generator, an electric box of hydrostatically balanced delivery, a hydrostatically balanced submarine electric cable, a wet-mate-type submarine electric connector, hydraulic hoses, a compensator for allowing equalization of the internal pressure with the external one. The system is interconnected and driven hydraulically by a ROV.
    Type: Grant
    Filed: August 17, 2016
    Date of Patent: October 27, 2020
    Inventors: Alexandre Carvalhar Marins, Arthur Eugênio De Almeida Filho, Rodrigo Silva Cappato, Ricardo Vianna Ramos
  • Patent number: 10807730
    Abstract: A motor driven propulsor of an aircraft includes magnets disposed in fan shrouds of fan blades connected with a fan hub, a stator having individual conductive coils in a nacelle located radially outside of the fan hub, and a distributed inverter assembly having several inverter power stages and gate drivers, each of the inverter power stages coupled with a separate gate driver of the gate drivers and a separate coil of the coils in the stator. Each of the gate drivers is configured to individually control supply of direct current to the corresponding inverter power stage. Each of the inverter power stages is configured to convert the direct current supplied to the inverter power stage to an alternating current that is supplied to the corresponding coil in the stator to rotate the magnets and the fan blades around a center line of the fan hub for propelling the aircraft.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: October 20, 2020
    Assignee: General Electric Company
    Inventors: Narendra Digamber Joshi, Konrad Weeber, Michael Solomon Idelchik
  • Patent number: 10808510
    Abstract: A power generation system includes one or more micro-turbine electric generators (“MTEGs”). The MTEGs include a housing having an inlet for receiving pressurized gas and an outlet for releasing expanded gas. The MTEGs also include a rotor, a user-replaceable nozzle for directing pressurized gas over blades of the rotor, and a stator for generating alternating current (“AC”) responsive to rotation of the rotor. The power generation system also includes a programmable logic controller (“PLC”) coupled to the MTEGs that operates flow control valves (“FCVs”) coupled to the MTEGs to modulate the flow of gas to the MTEGs to generate output power suitable to support an electrical load. The system also includes power conversion circuitry configured to convert AC generated by the MTEGs to direct current (“DC”) and to provide the DC to an electrical load. The system also includes a skid for mounting multiple and MTEGs and FCVs.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: October 20, 2020
    Assignee: REVOLUTION TURBINE TECHNOLOGIES, LLC
    Inventors: Christopher Bean, James Stuart Grasty, Jr., David L. Schauer, Blaine E. Alderks
  • Patent number: 10794278
    Abstract: The compressed air energy storage power generation device includes a third heat exchanger and fourth heat exchangers. The third heat exchanger performs heat exchange between the air exhausted from the expander and the second heating medium to cool the second heating medium. The fourth heat exchanger performs heat exchange between the second heating medium cooled by the third heat exchanger and at least one of the lubricating oil to be supplied to the compressor or the first heating medium to be supplied to the first heat exchanger to cool the lubricating oil or the first heating medium.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: October 6, 2020
    Assignee: Kobe Steel, Ltd.
    Inventors: Yohei Kubo, Masatake Toshima, Hiroki Saruta, Masaki Matsukuma, Kanami Sakamoto
  • Patent number: 10788379
    Abstract: An abnormality diagnosis apparatus includes a sensor unit configured to detect a heat flux which flows from a target apparatus toward outside, and a determining unit configured to determine an abnormality of the target apparatus. The sensor unit includes a first heat flux sensor, a second heat flux sensor, and a thermal buffer which is disposed between the first heat flux sensor and the second heat flux sensor and which has predetermined heat capacity. The first heat flux sensor outputs a first sensor signal in accordance with a heat flux which passes through the first heat flux sensor from the target apparatus side toward the thermal buffer side. The second heat flux sensor outputs a second sensor signal in accordance with a heat flux which passes through the second heat flux sensor from the thermal buffer side toward a side farther from the target apparatus.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: September 29, 2020
    Assignee: DENSO CORPORATION
    Inventors: Norio Gouko, Atusi Sakaida, Toshihisa Taniguchi, Keiji Okamoto, Yoshihiko Shiraishi
  • Patent number: 10773812
    Abstract: An aspect includes a battery charging system for a hybrid electric aircraft. The battery charging system includes a generator, a battery system, and a controller. The controller is operable to charge the battery system up to a first charge level based on receiving a first charging current at a power input. An operational status of a gas turbine engine of the hybrid electric aircraft is monitored. The battery system is charged at a second charging current received from the generator driven by the gas turbine engine responsive to determining that the gas turbine engine is in a taxi state, where the second charging current is less than the first charging current. Charging of the battery system is halted based on detecting a transition of the gas turbine engine from the taxi state to an off-idle throttle state.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: September 15, 2020
    Assignee: RAYTHEON TECHNOLOGIES CORPORATION
    Inventors: Neil Terwilliger, David A. Golfin
  • Patent number: 10767619
    Abstract: A closed system that captures energy derived from the head differential rather than open-water flows velocities while reducing potential environmental damages and costly maintenance due to bio-fouling. This energy density available in a tidal range is increased substantially via convergent “nozzles” to produce an optimal speed for power generations with the turbine sections, thereby significantly increasing the tidal energy captured by this system, even at sites where tidal energy is low (e.g., small to medium tide ranges, such as found along the East and Gulf Coasts of the United States).
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: September 8, 2020
    Assignee: University of North Florida Board of Trustees
    Inventors: Brian Thomas Kopp, Donald Thomas Resio, Michelle Ann Vieira, Abdallah Walid Mohamed Kamal El Safty
  • Patent number: 10731555
    Abstract: A micro-CHP gas boiler comprises a heat exchanger having a combustion space surrounded by a water flowpath, and a gas turbine assembly which is installed in the combustion space. The gas turbine assembly includes a generator surrounded by an annular combustion chamber and cooled by a water jacket which forms part of the flowpath, and a fuel gas compressor which is integrated into the thrust runner on the turbine rotor shaft between foil air bearings.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: August 4, 2020
    Assignee: SAMAD POWER LIMITED
    Inventor: Seyed Mohammad Mohseni
  • Patent number: 10704556
    Abstract: An turbocharger with an electric motor (30) includes a housing (33), stator (32), and motor rotor. The housing (33) has first stator fixing section (131) and a second stator fixing section (132) formed in an inner peripheral surface of the housing (33) that fixes the stator (32) in the housing. The stator (32) has a first fixed section (121) formed in an outer peripheral surface of the stator (32) fitted to the first stator fixing section (131) and a second fixed section (122) that has a smaller outer diameter than the first fixed section (121) fitted to the second stator fixing section (132) in an outer peripheral surface of the stator (32). A large clearance section having a space is formed between the inner peripheral surface of the housing and the outer peripheral surface of the stator. The instant invention allows precise positioning of the stator and improved heat conduction.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: July 7, 2020
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Hidetaka Nishimura, Takeshi Tsujii
  • Patent number: 10697363
    Abstract: A combined heat and power plant includes a gasifier, a heat exchanger arranged to reduce the temperature of the raw synthesis gas formed in the gasifier by exchanging the heat of the raw synthesis gas into heating medium used for heating and forming cooled raw synthesis gas, a filtration unit for cleaning the cooled raw synthesis gas to form refined synthesis gas suitable as a fuel for an internal combustion engine, an internal combustion engine where the refined synthesis gas is burnt to produce mechanical power, ducts for connecting different parts of the plant to each other a raw gas burner arranged after the gasifier to burn the raw synthesis gas formed in the gasifier during the time when the refined synthesis gas is not utilized in the internal combustion engine. A method for treating raw synthesis gas a combined heat and power plant is also disclosed.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: June 30, 2020
    Assignee: Volter Oy
    Inventors: Esa Terho, Jani Kaaresto, Iikka Ylikoski, Iikka Korva, Jarno Haapakoski
  • Patent number: 10683803
    Abstract: A compressed-air energy-storage system, comprising: a variable-nozzle expander configured to receive an airflow at a first pressure and partially expand said airflow at a second pressure, said second pressure being lower than said first pressure, expansion of said airflow in said variable-nozzle expander producing useful mechanical power; a heat generator component configured to receive a fuel and a partially expanded airflow from the variable-nozzle expander; and a turbine configured to receive combustion gas from the heat generator component and expand the combustion gas producing useful mechanical power.
    Type: Grant
    Filed: April 8, 2013
    Date of Patent: June 16, 2020
    Assignee: NUOVO PIGNONE SRL
    Inventors: Matteo Berti, Michele D'Ercole, Stefano Francini, Allesandro Russo, Paola Del Turco
  • Patent number: 10683796
    Abstract: A system in one embodiment includes at least one cylinder, a supplemental boost supply, and a supply line. The at least one cylinder is configured for use in a reciprocating internal combustion engine, and includes a combustion portion and a crank portion on opposite sides of a piston. The at least one cylinder also includes an intake port and an exhaust port in fluid communication with the combustion portion. The supplemental boost supply is configured to provide a supplemental air supply to the combustion portion of the engine when the engine is idling to increase pressure in the combustion portion. The supply line couples the supplemental boost supply to the intake port.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: June 16, 2020
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Adam Edgar Klingbeil, Roy James Primus, Edward Joseph Hall
  • Patent number: 10680440
    Abstract: A hybrid energy system includes a (GTG) configured to provide a full-load power output and a storage device configured to store energy. The hybrid energy system includes a generator step-up transformer, wherein the GTG and the storage device are electrically co-located on a low side of the generator step-up transformer.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: June 9, 2020
    Assignee: Wellhead Power Solutions, LLC
    Inventors: John McDaniel, Harold Dittmer
  • Patent number: 10677162
    Abstract: Electrical power systems, including generating capacity of a gas turbine, where additional power is generated from an air expander and gas turbine simultaneously from a stored compressed air and thermal system.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: June 9, 2020
    Assignee: POWERPHASE LLC
    Inventors: Robert J. Kraft, Matthew Kraft
  • Patent number: 10669955
    Abstract: An engine includes a dynamo-electric machine which generates electricity by the rotation of the engine; a secondary battery which stores electricity generated by the dynamo-electric machine; an electric supercharger including an electric compressor for supercharging intake air into combustion chambers; and a mechanical supercharger including an exhaust turbine configured to be driven by exhaust gas in the exhaust passage, and a mechanical compressor configured to supercharge intake air into the combustion chamber. An ECU (50) includes a remaining charge detector for detecting the remaining amount of charge of the secondary battery; and a supercharge control means for adjusting the ratio between a supercharging pressure by the electric supercharger and a supercharging pressure by the mechanical supercharger according to the remaining amount of charge of the secondary battery.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: June 2, 2020
    Assignee: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventors: Koji Hata, Hiroki Oshima
  • Patent number: 10648446
    Abstract: An assembly for generating electricity from flowing water includes a chamber having a base, a side wall extending from the base, a water inlet, and a water outlet, a rotor unit having a shaft and a rotor mounted to the shaft located in and rotatable in the chamber in response to water flow through the chamber, and an electrical generator coupled to the rotor unit for generating electricity in response to rotation of the rotor. The dimensions of the inlet, the outlet and the chamber and the positions of the inlet, the outlet and the rotor are selected to promote the formation of a vortex within the chamber when in use the assembly is located in a body of water or beside a body of water, in a waterway or beside a waterway, within an enclosed water conduit or beside an enclosed water conduit, and there is a flow of water through the chamber from the inlet to the outlet.
    Type: Grant
    Filed: August 4, 2014
    Date of Patent: May 12, 2020
    Inventor: Paul Steven Kouris
  • Patent number: 10605225
    Abstract: System and method for controlling operation of a hydroelectric production system comprising electrical actuators operably connected at opposite positions of a gate operating ring for rotating the wicket gates to a desired position. The system receives a single control signal designed for a hydraulic system comprising hydraulic actuators operably connected to a single fluid reservoir and configured to work in tandem to produce simultaneous and opposite axial movements. The system comprises a control interface adapted to produce new control signals, each new signal being intended to a different electrical actuator to cause the electrical actuators to have axial movements which are identical in speed and in opposite directions to substantially imitate the exact movement of the hydraulic actuators onto the gate operating ring. The system is configured to introduce a dampening effect to reduce sudden acceleration and deceleration which is purposely used in hydraulic systems to overcome friction and static effects.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: March 31, 2020
    Inventors: Daniel St-Laurent, Thomas Ferland, Samuel Bouchard, Denis Otth, Donat Picron
  • Patent number: 10605111
    Abstract: A turbine generator comprises an elongate member, a support structure, a turbine wheel and an electrical generator. The support structure comprises a shaft and support the elongate member for rotation about a rotation axis. The turbine wheel is attached to the elongate member. The electrical generator comprises a rotor and a stator, the rotor being attached to the elongate member and the stator being arranged around the elongate member. The elongate member is provided with a bore and the shaft extends through an end of the elongate member into the bore so as to support it for rotation about the rotation axis.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: March 31, 2020
    Assignee: Cummins Ltd.
    Inventor: John Bywater
  • Patent number: 10598048
    Abstract: There is disclosed an auxiliary rotation device 28 for a gas turbine engine 10. The auxiliary rotation device 28 comprises: an electric machine 30 configured to be coupled to a rotor of the gas turbine engine 10; and a dedicated electrical storage device 32 coupled to the electric machine 30. During a period of powered operation of the gas turbine engine 10 the electric machine 30 is configured to act as a generator so as to charge the dedicated electrical storage device 32. Following the period of powered operation of the gas turbine engine 10 the electric machine 30 is configured to act as a motor by discharging the dedicated electrical storage device 32 so as to cause the rotor to rotate for a period of time to provide even cooling of the rotor around its circumference. There is also disclosed a method of cooling a rotor of a gas turbine engine 10 using an auxiliary rotation device 28.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: March 24, 2020
    Assignee: ROLLS-ROYCE plc
    Inventors: Michael P. Keenan, Stewart T. Thornton
  • Patent number: 10581356
    Abstract: An exhaust turbine power generating system includes an internal combustion engine, an exhaust turbine power generator configured to perform electric power generation by rotating a turbine by using exhaust gas from the internal combustion engine, and an electronic control unit. The electronic control unit is configured to perform electric power generation control in which the exhaust turbine power generator is caused to perform electric power generation by controlling the exhaust turbine power generator and the electronic control unit is configured to perform powering control in which the exhaust turbine power generator is caused to perform powering such that the turbine is rotated by controlling the exhaust turbine power generator until a predetermined termination condition is satisfied after the internal combustion engine is started.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: March 3, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshiki Fukuhara, Masakazu Tabata
  • Patent number: 10578099
    Abstract: A compressor device that periodically supplies compressed working gas to a cooling device loses less of the gas by not using rotary valves. The compressor device includes a compressor cylinder, a compensation container and a drive device with an hydraulic cylinder. The compressor cylinder includes a compressor element, such as a piston or membrane, that divides the compressor cylinder into first and second volumes. The first volume contains the gas that is compressed by the compressor element. The hydraulic cylinder has a piston that is coupled to the compressor element. The compensation container contains compensation fluid and is directly connected to the second volume. The compensation container is also connected to the first volume by a gas line with a non-return valve that opens in the direction of the first volume. The drive device allows the compressed gas to be provided at a frequency required for Gifford-McMahon and pulse-tube coolers.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: March 3, 2020
    Assignee: Pressure Wave Systems GmbH
    Inventor: Jens Hoehne
  • Patent number: 10570339
    Abstract: An approach is provided for processing mixed solid waste using an integrated bioenergy complex. The approach, for instance, involves receiving the mixed solid waste at the integrated bioenergy complex, the integrated bioenergy complex including an organic conversion processing center and an inorganic conversion processing center. The approach also involves separating the mixed solid waste into recyclables, an organic waste stream, and an inorganic waste stream. The approach further involves feeding the organic waste stream to the organic conversion processing center to produce organic conversion products and an organic residual, and feeding the organic residual and the inorganic waste stream to the inorganic conversion processing center to produce inorganic conversion products, electric power, and a residual waste. The electric power is used to partially or fully power the organic conversion processing center, and residual waste is less than a target percentage of the received mixed solid waste.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: February 25, 2020
    Assignee: IBC TECHS, LLC
    Inventor: Ray Crabbs
  • Patent number: 10544728
    Abstract: Methods and systems are provided for an electric turbocharger. In one example, a method rotating a turbine of the electric turbocharger in a reverse direction, the turbine being mechanically coupled to a compressor via a shaft. The rotation of the turbine may be adjusted based on a cold-start and/or engine operating conditions outside of the cold-start.
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: January 28, 2020
    Assignee: Ford Global Technologies, LLC
    Inventors: Xiaogang Zhang, Chee Haw Chan, Lynn Aimee Chesney, Patrick Matthews
  • Patent number: 10513986
    Abstract: A turbine engine is described that includes a drive shaft and an electric generator comprising a first rotating element comprising a magnet array, wherein the first rotating element is configured to rotate in a first direction based on a rotation of the drive shaft. The turbine engine further includes a second rotating element comprising a coil array, wherein the second rotating element is configured to rotate in a second direction based on the rotation of the drive shaft, wherein the second direction is opposite to the first direction.
    Type: Grant
    Filed: October 5, 2016
    Date of Patent: December 24, 2019
    Assignee: Rolls-Royce North American Technologies, Inc.
    Inventors: Bradley Eugene Auker, Edward Claude Rice
  • Patent number: 10487794
    Abstract: A system for generating power from a flow of liquid having at most fifty feet of head and a flow rate of at most 300 cubic feet per second, includes: an axial-flow turbine, a penstock, an intake, a generator, and a control circuit. Each blade of the turbine runner is releasably coupled to the hub and each blade: 1) is configured to extract energy from liquid flowing through the runner by rotating the hub when the flow of liquid contacts the blade, and 2) has a pitch that is adjustable. The length of the penstock is adjustable. The generator is operable to generate electric power from rotation of the turbine. The control circuit to determines changes in the flow of liquid and in response modifies at least one of the following: 1) the speed of the axial-flow turbine's hub, and 2) the flow of liquid that the runner receives.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: November 26, 2019
    Assignee: COMMUNITY HYDRO, LLC
    Inventors: Lori Barg, Allan Chertok
  • Patent number: 10491145
    Abstract: A system includes a gas turbine operational at a constant rated rotational speed, a speed sensor to measure an actual speed of the gas turbine, a turbine controller to control the gas turbine to the constant rated rotational speed, and a generator coupled with the gas turbine and rotatable to output electric power. The system also includes a DC to DC converter to output a load current on a load bus to supply a load. The DC to DC converter is supplied input electric power from the generator. The system also includes an energy storage device cooperative operable with the DC to DC converter to supply power on the load bus, and a controller to receive the actual speed and adjust an output electrical current set point of the DC to DC converter to compensate for deviation of the actual speed from the constant rated speed of the gas turbine.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: November 26, 2019
    Assignee: Rolls-Royce North American Technologies Inc.
    Inventor: Keith D. Noderer
  • Patent number: 10473129
    Abstract: An energy-saving hydraulic system includes an exerting hydraulic device, a buffering receptacle arranged at one side of the exerting hydraulic device, an impetus hydraulic device connecting to the exerting hydraulic device, and a recovering hydraulic device. The exerting hydraulic device has a loading receptacle selectively disposed at a first high position and a first low position. The impetus hydraulic device has a transferring receptacle selectively disposed at a second high position, a recovering position, and a second low position. The second low position is lower than the buffering receptacle. The recovering hydraulic device connects the exerting hydraulic device and the impetus hydraulic device, and includes a sustaining portion. When the impetus hydraulic device is lowering to the second low position, it contacts the sustaining portion of the recovering hydraulic device to push working liquid to flow back the exerting hydraulic device from the recovering hydraulic device.
    Type: Grant
    Filed: June 12, 2016
    Date of Patent: November 12, 2019
    Inventors: Wen-Chieh Chen, Shu-Hui Tseng
  • Patent number: 10465552
    Abstract: In a method for the control and protection of a gas turbine a gas turbine performance and lifetime indicative process quantity is estimated from a set of available process signals. The gas turbine performance and lifetime indicative process quantity is simultaneously evaluated by two different estimation methods, whereby a first estimation method has a high prediction accuracy, and a second estimation method has a high availability, a continuous adaptation of the second estimation method is conducted in order to align the output signals of the two estimation methods, and in case of a failure detected in the supervision of the first estimation method the adaptation of the second estimation method is stopped, and the output of the first estimation method is switched to the output of the second estimation method.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: November 5, 2019
    Assignee: ANSALDO ENERGIA SWITZERLAND AG
    Inventors: Eric Andre Mueller, Andreas Belzner
  • Patent number: 10458384
    Abstract: According to one embodiment, a pumped-storage power generation control device includes a control section that controls at least one of the pumping input of the pumped-storage power generation facility in the pumping operation and the power output of the pumped-storage power generation facility in the power generating operation such that a value, which is obtained by a predetermined calculation using the measurement value relating to the pumping input of the pumped-storage power generation facility in the pumping operation and the measurement value relating to the power output of the pumped-storage power generation facility in the power generating operation, becomes a set target value.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: October 29, 2019
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Junji Mori, Toshiaki Suzuki, Kiyoshi Kusunoki, Toru Kubo, Shoji Iida, Takahisa Kageyama
  • Patent number: 10429154
    Abstract: A system platform includes a gas turbine engine coupled to a high power generator. The high power generator, driven by the gas turbine engine, supplies power to high power subsystems of the platform.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: October 1, 2019
    Assignee: Rolls-Royce North American Technologies Inc.
    Inventor: Erik A. Munevar
  • Patent number: 10392960
    Abstract: A turbine for use in extracting energy from fluid flowing along a fluid channel defines a portion of the fluid channel and includes a flow pathway in communication with the fluid channel. A moveable element, such as a rotor, is disposed around the fluid channel and is moveable under the action of fluid flowing along the flow pathway so as to extract energy therefrom. The turbine may be associated with other apparatus in the fluid system, and may be capable of storing extracted energy for later use.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: August 27, 2019
    Assignee: Tendeka AS
    Inventors: John Hunter, Ian David McWhinnie, Sally Tamsin Wood
  • Patent number: 10389128
    Abstract: A power control system for providing power sharing is provided. An energy storage device is configured to supply a first portion of power of an electrical power as a total load power and an engine-driven electrical machine is configured to supply a second portion of power of the total load power. A power converter is electrically coupled to the energy storage device and the engine-driven electrical machine such that the power converter is configured to supply the total load power to an electrical load device. A controller is coupled to the power converter and the controller receives characteristic data from at least one of the energy storage device, the engine-driven electrical machine, and the electrical load device. Based on the received characteristic data, the controller determines a power sharing proportion of a power sharing amount of each of the first portion of power and the second portion of power of the total load power to be supplied via the power converter to the electrical load device.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: August 20, 2019
    Assignees: Rolls-Royce Corporation, Rolls-Royce North American Technologies Inc.
    Inventors: Paul M. Rancuret, Russell E. White, Michael Quinones
  • Patent number: 10385734
    Abstract: Provided is a thermal energy recovery device in which poor lubrication of a bearing can be inhibited when an expander is driven. The thermal energy recovery device includes an evaporator (10), an expander (20), a power recovery machine (30), a condenser (40), a pump (50), a circulation flow path (60), a cooling flow path (70) for supplying working fluid from the pump (50) partially to the power recovery machine (30), an on-off valve (V1) provided in the cooling flow path (70), and a control unit (80), in which the expander (20) has a rotor (21), a bearing (22), and a primary casing (23), and in which the power recovery machine (30) has a power recovery unit (31) and a secondary casing (35), and in which upon reception of a stop signal for stopping power recovery by the power recovery machine (30), the control unit (80) closes the on-off valve (V1).
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: August 20, 2019
    Assignee: Kobe Steel, Ltd.
    Inventors: Shigeto Adachi, Yutaka Narukawa, Kazumasa Nishimura
  • Patent number: 10378437
    Abstract: An object of the present invention is to provide a method and a system for implementing the method so as to alleviate the disadvantages of a reciprocating combustion engine and gas turbine in electric energy production. The invention is based on the idea of arranging a combustion chamber (10) outside a turbine (22) and providing compressed air from serially connected compressors to the combustion chamber in order to carry out a combustion process supplemented with high pressure steam pulses. The combustion chamber (10) is arranged to receive compressed air from each compressing stage of the serially connected compressors (24) for gradually increasing the amount of compressed air in the combustion chamber (10).
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: August 13, 2019
    Assignee: Finno Energy Oy
    Inventors: Timo Erämaa, Heikki J. Salminen
  • Patent number: 10364743
    Abstract: Electrical power systems, including generating capacity of a gas turbine, where additional power is generated from an air expander and gas turbine simultaneously from a stored compressed air and thermal system.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: July 30, 2019
    Assignee: POWERPHASE LLC
    Inventors: Robert J. Kraft, Matthew Kraft
  • Patent number: 10352271
    Abstract: Methods of powering a heat engine with a remote lasers are disclosed, where the ambient air surrounding the engine is used as the working fluid. All methods include inputting the ambient air into the engine, absorbing laser optical radiation, turning it into heat, supplying the heat to the air, harvesting mechanical work from expanding air and releasing the air back into surrounding atmosphere.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: July 16, 2019
    Inventor: Dmitriy Yavid
  • Patent number: 10337347
    Abstract: Various methods and systems are provided for generating exhaust energy and converting exhaust energy to electrical energy while an engine is not running. In one example, a system for an engine comprises: a first turbocharger including a first compressor driven by a first turbine, the first turbine disposed in an exhaust of the engine; a fuel burner fluidly coupled to the exhaust upstream of the first turbine; a generator coupled to one of the first turbine or an auxiliary, second turbine fluidly coupled to the exhaust downstream of the fuel burner; and one or more bypass valves configured to adjust a flow of air that bypasses the engine and is delivered to the fuel burner.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: July 2, 2019
    Assignee: GE Global Sourcing LLC
    Inventors: James Robert Mischler, Roy James Primus, Thomas Michael Lavertu
  • Patent number: 10323567
    Abstract: Provided is an air charging apparatus driven by a rotating magnetic field and compressing or pressurizing and transferring air. The air charging apparatus includes at least one impeller sucking air and giving kinetic energy to intake air; an impeller case leading external air inhaled by the impeller into the impeller and converting velocity energy of air out of the impeller into air having pressure energy to discharge air; and a rotating body accelerator equipped with the impeller and the impeller case and driving the impeller. Here, the rotating body accelerator drives the impeller by generating a torque by interaction with an intake negative pressure, by generating a torque by interaction with the intake negative pressure and using supplied power, or by generating a torque using supplied power.
    Type: Grant
    Filed: February 6, 2014
    Date of Patent: June 18, 2019
    Inventor: Seungjoo Han
  • Patent number: 10320261
    Abstract: For reducing vibrations and noise in electrical machines a rotor is mounted in a magnetic alignment device while a bearing shield is loosely held relative to a stator. The rotor is driven by the stator and vibrations of the rotor are detected. A magnetic alignment device is controlled so as to reduce the vibrations. Finally the bearing shield is fixed to the stator in a position determined by the controlling of the magnetic alignment device. Thus electromagnetic forces are taken into consideration during vibration and noise reduction.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: June 11, 2019
    Assignee: Siemens Aktiengesellschaft
    Inventors: Klaus Büttner, Klaus Kirchner, Matthias Warmuth, Norbert Wöhner
  • Patent number: 10309300
    Abstract: By relieving the shaft of an electronically-controlled turbocharger (ECT) in a central region of where a rotor of an electric machine couples with the shaft eases assembly of the electric machine onto the shaft. On either side of the relieved section, the fit between the shaft and the rotor may be a slip fit or an interference fit. Alternatively, the rotor is relieved in a central section. In some embodiments, the shaft is welded to the rotor. In yet other embodiments, the outside of the shaft and the inside of the rotor are threaded with a nut or a pin to secure the shaft to the rotor or the rotor itself has threads to engage with threads on the shaft. Such arrangements ease assembly and allow adjustment of dynamic characteristics of the rotor system.
    Type: Grant
    Filed: February 20, 2014
    Date of Patent: June 4, 2019
    Assignee: BorgWarner Inc.
    Inventors: Tyler Garrard, Will Robert Nielsen Hippen, Christopher Meszaros
  • Patent number: 10301974
    Abstract: An activation control apparatus permits activating a steam turbine safely at high speed in response to a power generation plant state. A heat source apparatus heats low-temperature fluid to generate high-temperature fluid, and steam generation equipment generates steam by thermal exchange with the high-temperature fluid. A steam turbine is driven by the steam, and an adjustment apparatus adjusts a plant operation amount. A thermal effect amount prediction calculation device calculates a prediction value for a thermal effect amount for use for activation control of the steam turbine, and a changeover device decides, based on a state value of the power generation plant, the sensitivity of the thermal effect amount to a variation of the plant operation amount and outputs a changeover signal in accordance with the sensitivity. Based on the changeover signal, an adjustment device calculates the plant operation amount so as not to exceed a predetermined limit value.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: May 28, 2019
    Assignee: Mitsubishi Hitachi Power Systems, Ltd.
    Inventors: Yasuhiro Yoshida, Takuya Yoshida, Tatsuro Yashiki, Kazunori Yamanaka, Fumiyuki Suzuki, Norihiro Iyanaga
  • Patent number: 10253655
    Abstract: A method for coupling a gas turbine connected to a generator and a steam turbine, wherein the generator has an excitation winding, the excitation of which can be changed by changing an excitation current flowing through the excitation winding, the method having the following steps: a) accelerating and/or decelerating the steam turbine in such a way that the coupling takes place with a target coupling angle; b) if necessary, changing the excitation current such that the excitation of the excitation winding changed in this way leads to a changed polar wheel angle, wherein the polar wheel angle is changed in such a way that the achieving of the target coupling angle is supported. In an analogous method, the polar wheel angle is changed for the purposes of improved decoupling. A corresponding control device is for coupling a gas turbine connected to a generator.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: April 9, 2019
    Assignee: Siemens Aktiengesellschaft
    Inventors: Martin Berning, Marc Diefenbach, Marcel Langer, Martin Ophey, Dennis Schlüter, Michael Winkel
  • Patent number: 10240435
    Abstract: An electrical generator positionable downhole in a well bore includes a tubular housing having a first longitudinal end and a second longitudinal end, the housing having an internal passageway with a plurality of layers. The layers comprise at least a first protective layer, a second protective layer, and an electrically conductive layer positioned between the first and second protective layers. The layers define an internal cavity. A shaft with magnetic inserts is movably positioned in the internal cavity. Electrical current is generated when the shaft is moved. Alternatively, the device may be supplied with electrical power and used as a downhole motor.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: March 26, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: John Kenneth Snyder, Victor Gawski
  • Patent number: 10207592
    Abstract: A power generation platform for delivering power to an external load includes an electrical system mounted to an autonomously-controlled chassis. The chassis has a powertrain that is responsive to control signals from a controller. The electrical system includes a fuel cell or other clean power supply for propelling the chassis, a direct current (DC) charging unit, a turbojet, a battery pack, and one or more electric machines. The DC charging unit and the battery pack are selectively connectable to the external load to deliver power to the external load, e.g., a propulsion battery pack of a vehicle or other system. The turbojet has a compressor, combustion chamber, and turbine, and injects low-emissions fuel into and combusts the fuel in the combustion chamber. The electric machine(s) are rotatably coupled to the compressor and/or the turbine to generate and transmit electricity to the battery pack.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: February 19, 2019
    Assignee: GM Global Technology Operations LLC
    Inventors: Steve A. Warden, Jarvis Chau, Ralph D. Schlottke