Ignition Or Fuel Injection After Starting Patents (Class 60/776)
  • Patent number: 11415044
    Abstract: An aircraft gas turbine engine system comprises first and second gas turbine engines. The first gas turbine engine has first and second spools. A first power linkage connects the second gas turbine engine to the first spool of the gas turbine engine, and a second power linkage connects the second gas turbine engine to the second spool of the first gas turbine engine.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: August 16, 2022
    Assignee: Raytheon Technologies Corporation
    Inventors: Daniel Bernard Kupratis, Neil Terwilliger, Christopher J. Hanlon
  • Patent number: 11415036
    Abstract: Various embodiments include an apparatus for ascertaining a heating temperature of a heating element for an electrically heatable catalytic converter comprising: a catalytic converter housing surrounding the heating element and the catalytic converter; a first temperature sensor arranged in the housing; and a second temperature sensor arranged in the housing downstream of the first temperature sensor with regard to an exhaust gas flow direction within the housing. The first temperature sensor is exposed to radiation from the heating element and the second temperature sensor is shielded from radiation from the heating element.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: August 16, 2022
    Assignee: VITESCO TECHNOLOGIES GMBH
    Inventors: Manfred Weigl, Gerhard Haft
  • Patent number: 11391179
    Abstract: The gas turbine engine can have a structure for holding bearings within a casing, with a shaft being rotatably mounted to the casing via the bearings and via the structure, the structure having a first wall segment and a base structure receiving the bearings, the first wall segment having a proximal end structurally joined to the base structure, the first wall segment extending away from the base structure, and having a portion extending at least partially axially and thereby being radially flexible relative to the second wall segment, the structure providing both structural resistance and radial stretchability.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: July 19, 2022
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventors: Guy Lefebvre, Remy Synnott, François Doyon
  • Patent number: 11384693
    Abstract: A through-flow gas turbine engine includes a core comprising multiple spools rotatable about a center axis. An accessory gearbox (AGB) is drivingly engaged to the core and disposed aft of the outlet. A reduction gearbox (RGB) is drivingly engaged to the core and disposed forward of the inlet. The RGB has an RGB output to provide rotational output to a rotatable load. An electric motor is drivingly engaged to the rotatable load. An electric generator is configured to provide electrical power to the electric motor. One of the electric motor and the electric generator is disposed axially between the outlet and the AGB and the other of the electric motor and the electric generator is disposed axially between the inlet and the RGB.
    Type: Grant
    Filed: June 10, 2020
    Date of Patent: July 12, 2022
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventor: Guy Lefebvre
  • Patent number: 11359552
    Abstract: A control device is a control device for a gas turbine including a plurality of combustors and is configured to select combustors to ignite in accordance with a target load on the basis of a predictor which defines a relationship between a load and the number and arrangement of combustors to ignite and a combustion temperature.
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: June 14, 2022
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Keita Yunoki, Kei Inoue, Takashi Hiyama, Eisaku Ito
  • Patent number: 11306661
    Abstract: Methods and apparatus to operate a gas turbine engine with hydrogen gas are disclosed. An example combustor nozzle apparatus of a gas turbine engine includes a first circuit to transport a blend of hydrogen gas, inert gas, and/or other combustible gas from a supply to a gas turbine combustor, the blend of hydrogen gas, inert gas, and/or other combustible gas including between 100% hydrogen gas, 100% inert gas, or 100% other combustible gas, a second circuit to transport water from the supply to the gas turbine combustor, and a nozzle tip. The nozzle tip includes a first outlet in connection with the second circuit to provide the water to the gas turbine combustor, and a second outlet in connection with the first circuit, the second outlet concentrically positioned within the first outlet to provide the blend of hydrogen gas, inert gas, and/or other combustible gas to the gas turbine combustor.
    Type: Grant
    Filed: December 4, 2020
    Date of Patent: April 19, 2022
    Assignee: General Electric Company
    Inventors: Eloise Brightwell, Douglas M. Fortuna, Gilbert Henry Badeer, Steven Keith Handelsman
  • Patent number: 11296580
    Abstract: The present invention relates to an arrangement for cooling of an electrical machine. The electrical machine comprises a rotor rotatably arranged around a rotation axis, a stator including a stator winding arranged radially outside of the rotor, a housing enclosing the rotor and the stator, at least one drain hole configured to drain a cooling fluid from the housing, at least one spraying device configured to spray cooling fluid on the stator winding and a pump configured to pump cooling fluid to the spraying device. The arrangement comprises a control unit, which is configured, when the electrical machine is in operation, to receive information of the temperature in at least one position of the stator winding and to control the pump such that it pumps a flow rate of the cooling fluid to the spraying device, which is related to the estimated temperature of the stator winding.
    Type: Grant
    Filed: February 7, 2017
    Date of Patent: April 5, 2022
    Assignee: Scania CV AB
    Inventors: Jörgen Engström, Stefan Karlsson
  • Patent number: 11286436
    Abstract: Pre-ground plastics of small particle size not more than 2 mm are co-fed into a solid fossil fuel fed entrained flow partial oxidation gasifier. A syngas composition can be made by charging an oxidant and a feedstock composition comprising recycle plastics and a solid fossil fuel to a gasification zone within a gasifier; gasifying the feedstock composition together with the oxidant in said gasification zone to produce said syngas composition; and discharging at least a portion of said syngas composition from said gasifier; wherein the recycled plastics are added to a feed point comprising a solid fossil fuel belt feeding a grinder after the solid fossil fuel is loaded on the belt, a solid fossil fuel belt feeding a grinder before the solid fossil fuel is loaded onto the belt, or a solid fossil fuel slurry storage tank containing a slurry of said solid fossil fuel ground to a size as the size fed to the gasification zone.
    Type: Grant
    Filed: February 3, 2020
    Date of Patent: March 29, 2022
    Assignee: Eastman Chemical Company
    Inventors: William Lewis Trapp, Justin William Murphy, Nathan Mitchell West
  • Patent number: 11286866
    Abstract: The gas turbine comprises a compressor, a combustor, and a turbine. The method comprises: compressing air with the compressor and feeding compressed air continuously to the combustor, feeding fuel to the combustor, continuously firing the mixture of fuel and gas in the combustor, feeding combustion gases from the combustor to the turbine, and supplying at least a portion of the total amount of fuel that is supplied to the combustor intermittently.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: March 29, 2022
    Assignee: Finno Energy Oy
    Inventors: Timo Erämaa, Heikki J. Salminen
  • Patent number: 11085321
    Abstract: A system and method for providing bleed air compensation for a continuous power assurance analysis of a gas turbine engine includes estimating bleed air flow rate from the gas turbine engine, estimating a shift in power turbine inlet temperature based on the estimated bleed air flow rate, and applying the estimated shift in power turbine inlet temperature to the continuous power assurance analysis of the gas turbine engine.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: August 10, 2021
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Richard Ling, Kevin Moeckly, Alfred E. Carstens
  • Patent number: 11060725
    Abstract: A gas turbine engine has a circumferential staging configuration of fuel injectors in a combustor. As a turbine blade revolves within the gas turbine engine it is subjected to lift and drag forces based on the configuration of lit injectors. A configuration of lit injectors that results in the minimum unsteady forces the turbine blade experiences is determined in order to increase the life span of the turbine blade and limit any structural failures.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: July 13, 2021
    Assignee: SIEMENS ENERGY GLOBAL GMBH & CO. KG
    Inventor: Marc Furi
  • Patent number: 11060729
    Abstract: A fuel nozzle assembly and a gas turbine combustor including the same are provided. The fuel nozzle assembly may include an end plate coupled to one end of an annular casing, and a fuel nozzle configured such that one end thereof is supported by the end plate and the other end thereof extends outward. The fuel nozzle may include a center fuel nozzle and a plurality of side fuel nozzles arranged annularly to surround the center fuel nozzle. The side fuel nozzle may include a nozzle body located at a center thereof, a shroud spaced outward from the nozzle body, and a plurality of swirlers located between the nozzle body and the shroud. Each of the swirlers may include a leading edge directed toward the end plate and a trailing edge located opposite the leading edge. In each of the side fuel nozzles, distances between the leading edges are different from each other.
    Type: Grant
    Filed: July 16, 2020
    Date of Patent: July 13, 2021
    Inventors: U Jin Roh, Mu Hwan Chon
  • Patent number: 11053863
    Abstract: A portable fuel preservation system is disclosed. The portable fuel preservation system may comprise a switch box configured to be coupled to an integrated fuel pump and control of a gas turbine engine. The switch box may comprise a circuit configured to cause a metering valve and a solenoid valve of the integrated fuel pump and control to open. A driver may be configured to inject preservation fluid into the integrated fuel pump and control.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: July 6, 2021
    Assignee: Raytheon Technologies Corporation
    Inventors: Brian Cabello, Michael Meagher, Steven S. Sperling
  • Patent number: 11054137
    Abstract: Provided is a combustion nozzle including a center cylinder having a cylinder shape, a middle cylinder coaxially disposed with the center cylinder and surrounding the center cylinder, an outer cylinder coaxially disposed with the middle cylinder and surrounding the middle cylinder, and a perforated plate disposed inside the center cylinder to create turbulent flow therethrough. In addition, the combustion nozzle further includes inner vanes disposed between the center cylinder and the middle cylinder and outer vanes disposed between the middle cylinder and the outer cylinder.
    Type: Grant
    Filed: July 22, 2018
    Date of Patent: July 6, 2021
    Inventor: Jung Jin Choi
  • Patent number: 11015476
    Abstract: In examples, a propulsion and electrical generation system including a gas turbine engine including a compressor and a bleed air outlet from the compressor, wherein the compressor is configured to compress a fluid, wherein a portion of the compressed fluid is directed out of the bleed air outlet to define bleed air from the compressor; and a turbo-generator including a combustor, wherein the combustor includes a fuel inlet and a bleed air inlet, wherein the bleed air inlet is in fluid communication with the bleed air outlet from the compressor, wherein the combustor is configured to receive the bleed air via the bleed air inlet from the bleed air outlet of the gas turbine engine and receive fuel via the fuel inlet, wherein the combustor is configured to combust the received fuel with the received bleed air, wherein the turbo-generator is configured to generate electrical energy via the combustion of the fuel by the combustor.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: May 25, 2021
    Assignee: Rolls-Royce Corporation
    Inventors: Donald Klemen, Russell E. White, Eric E. Wilson
  • Patent number: 11001987
    Abstract: A cab is used in a work machine. The cab includes a first pillar, a second pillar disposed to a rear of the first pillar, a beam disposed between the first pillar and the second pillar, and a reinforcing member provided to the beam.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: May 11, 2021
    Assignee: KOMATSU LTD.
    Inventors: Hironori Yamamitsu, Naozumi Okura, Masamichi Miyazaki, Takashi Tsukamoto
  • Patent number: 10992205
    Abstract: The present invention relates to an arrangement for cooling of an electrical machine. The electrical machine comprises a rotor rotatably arranged around a rotation axis, a stator including a stator winding arranged radially outside of the rotor, a housing enclosing the rotor and the stator, at least one drain hole configured to drain a cooling fluid from the housing, at least one spraying device configured to spray cooling fluid on the stator winding and a pump configured to pump cooling fluid to the spraying device. The arrangement comprises a control unit, which is configured, when the electrical machine is in operation, to receive information of the temperature in at least one position of the stator winding and to control the pump such that it pumps a flow rate of the cooling fluid to the spraying device, which is related to the estimated temperature of the stator winding.
    Type: Grant
    Filed: February 7, 2017
    Date of Patent: April 27, 2021
    Assignee: Scania CV AB
    Inventors: Jörgen Engström, Stefan Karlsson
  • Patent number: 10890114
    Abstract: A gas turbine engine includes devices, systems, and methods for design and operation of stabilizing heat exchangers for gas turbine engines in consideration of near supercritical fuel flow conditions.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: January 12, 2021
    Assignees: Rolls-Royce Corporation, Purdue Research Foundation
    Inventors: Patrick C. Sweeney, Stephen D. Heister, Steven A. Hunt, Carlo Scalo, Mario Tindaro Migliorino
  • Patent number: 10865987
    Abstract: The present invention generally relates to a sequential combustor for a gas turbine having second and/or subsequent stages of a re-heat, sequential or axially-staged combustion system. A variation in Mach number along the flow path can be used to control static temperature variation, which in turn influences the progress of auto-ignition reactions that eventually lead to the onset of combustion.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: December 15, 2020
    Assignee: ANSALDO ENERGIA SWITZERLAND AG
    Inventors: Khawar Syed, Madhavan Narasimhan Poyyapakkam, Franklin Marie Genin
  • Patent number: 10842096
    Abstract: A method and system for flue gas reclamation is described. In one embodiment, a flue gas reclamation system is provided. The system includes a combustion engine including an intake member, an output shaft, and an exhaust outlet. The intake member receives flue gas from a gas source. A generator is connected to the output shaft and a compressor is connected to the exhaust outlet of the combustion engine. At least one holding tank is connected to the compressor and the compressor stores enriched flue gas from the exhaust outlet of the combustion engine in the at least one holding tank. A battery is connected to the generator and is configured to provide electric power to the flue gas reclamation system. An algae farm in fluid communication with the at least one holding tank is configured to receive the stored enriched flue gas from the at least one holding tank.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: November 24, 2020
    Assignee: Honda Motor Co., Ltd.
    Inventors: Daniel T. Sellars, Joel W. Agner
  • Patent number: 10844790
    Abstract: A fuel system for a gas turbine engine includes a plurality of duplex nozzles arranged on each side of top dead center and a plurality of simplex nozzles. A primary manifold is operable to communicate fuel to a primary flow jet in each of the plurality of duplex nozzles and a secondary manifold is operable to communicate fuel to a secondary flow jet in each of the plurality of duplex nozzles and a secondary flow jet in each of the plurality of simplex nozzles. An equalizer valve that is in communication with both the primary manifold and the secondary manifold distributes fuel at various pressures to both the primary and secondary manifolds.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: November 24, 2020
    Assignee: Raytheon Technologies Corporation
    Inventors: James B. Hoke, Timothy S. Snyder, David Kwoka, Robert M. Sonntag
  • Patent number: 10823421
    Abstract: An apparatus and method for a reverse flow combustor, the reverse flow combustor including a straight portion, a dilution portion and a curved portion. The reverse flow combustor receives a flow of fuel that is ignited and mixed with cooling air to form a flow of combustion gases. The flow of combustion gases travels through the reverse flow combustor to a turbine section of an engine.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: November 3, 2020
    Assignee: GE AVIO S.r.l.
    Inventors: Massimo Giovanni Giambra, Joseph Douglas Monty, Stephen John Howell
  • Patent number: 10815906
    Abstract: A fuel-based thermal management system may comprise a heat exchanger configured to thermally couple a fluid and a fuel. A controller may be configured to modulate a flow of the fluid to the heat exchanger. A tangible, non-transitory memory may be configured to communicate with the controller. The controller may determine a temperature of the fluid, estimate a dissolved oxygen concentration in the fuel using a first fuel temperature, a flight cycle time, and at least one of an altitude measurement or a ambient pressure measurement, and modulate the flow of the fluid to the heat exchanger based on the dissolved oxygen concentration.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: October 27, 2020
    Assignee: RAYTHEON TECHNOLOGIES CORPORATION
    Inventors: Leo J. Veilleux, Jr., Lubomir A. Ribarov
  • Patent number: 10753276
    Abstract: A gas turbine system has a source of ammonia and a source of an oxygen-containing gas, a first combustion chamber connected to receive ammonia, a hydrogen-rich gas stream and oxygen-containing gas, a turbine connected to receive an exhaust gas stream from the first combustion chamber; and a second combustion chamber connected to receive an exhaust gas from the turbine, ammonia and a hydrogen-rich gas stream.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: August 25, 2020
    Assignee: Siemens Aktiengesellschaft
    Inventors: Ghenadie Bulat, Timothy Hughes, Jonathan May, Ian Wilkinson
  • Patent number: 10591164
    Abstract: A fuel nozzle apparatus for a gas turbine engine includes: an annular outer body extending parallel to a centerline axis, with an exterior surface having a plurality of openings; a main injection ring disposed inside the outer body and including: a circumferential main fuel gallery; and a plurality of main fuel orifices, each main fuel orifice communicating with the main fuel gallery and aligned with one of the openings; a venturi disposed inside the main injection ring; an annular splitter disposed inside the venturi, and including inner and outer walls spaced-apart from each other defining a splitter cavity, and a plurality of discharge holes communicating with the splitter cavity; an array of outer swirl vanes extending between the venturi and the splitter; a pilot fuel injector within the splitter; and an array of inner swirl vanes extending between the splitter and the pilot fuel injector.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: March 17, 2020
    Assignee: General Electric Company
    Inventors: Nayan Vinodbhai Patel, Duane Douglas Thomsen
  • Patent number: 10578305
    Abstract: A burner assembly with a combustion chamber, a plurality of mixing ducts leading into the combustion chamber, where combustion air and introduced fuel are mixed. The mixing ducts are formed by mixing tubes extending axially through an annular space between a tubular outer wall, a tubular inner wall arranged radially at a distance from the outer wall, a ring-shaped end plate arranged upstream and a ring-shaped end plate arranged downstream. The end plates have through-openings, which accommodate and/or extend the mixing tubes, and the end plates have, both radially inside and outside, a circumferential edge extending in the direction of the annular space, with axial bores in the edge of the ring-shaped end plate arranged downstream. The axial bores extend from the annual space into the end plate, and at least one opening is for removing cooling air, the opening branching from the axial bore.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: March 3, 2020
    Assignee: Siemens Aktiengesellschaft
    Inventors: Olga Deiss, Thomas Grieb, Patrick Lapp, Jens Kleinfeld, Matthias Chlebowski, Fabian Sander, Christian Beck, Andreas Böttcher, Patrick Ronald Flohr, Thomas Hauser, Simon Purschke, Günther Walz
  • Patent number: 10544940
    Abstract: A fuel injector device includes a body having a leading edge and a trailing edge and defining a streamwise direction from the leading edge to the trailing edge. The fuel injector device body includes a first surface and a second surface opposite the first surface, each surface extending between and including the leading edge and the trailing edge, and the surfaces conjoining each other at the leading edge and the trailing edge. The trailing edge, when seen in the streamwise direction, undulates along a trailing edge mean line and, along its extent, deviates in opposite directions from the mean line and includes at least one inflection point along its extent.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: January 28, 2020
    Assignee: ANSALDO ENERGIA SWITZERLAND AG
    Inventors: Kaspar Loeffel, Yang Yang, Adnan Eroglu, Michael Thomas Maurer, Nico Biagioli, Alexey Stytsenko, Sergey Mylnikov, Igor Baibuzenko
  • Patent number: 10502426
    Abstract: A fuel injector is provided for the radial introduction of a liquid fuel/air mixture to a combustor. The fuel injector includes a body having a frame that defines an inlet portion and an outlet member that defines an outlet portion. A fuel plenum is defined within the outlet member, and a fuel injection port, which communicates with the fuel plenum, is defined through the outlet member. A fuel supply conduit, fixed to the body, communicates between a source of liquid fuel and the fuel injection port, via the fuel plenum. Alternately, the fuel injector may include a swirl-inducing device mounted to the outlet member in communication with the fuel injection port, and a fuel supply conduit fixed to the swirl-inducing device. In this embodiment, the fuel supply conduit communicates between the fuel injection port and a source of a liquid fuel and water mixture, via the swirl-inducing device.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: December 10, 2019
    Assignee: General Electric Company
    Inventors: Donald Timothy Lemon, Gilbert Otto Kraemer, Wei Chen, Marcus Byron Huffman, Ronnie Ray Pentecost
  • Patent number: 10495313
    Abstract: A fuel nozzle for gas turbine combustor of the present invention includes a diffusion combustion burner including a diffusion fuel nozzle, a premixing combustion burner including a premixing fuel nozzle, an end flange to which the diffusion combustion burner and the premixing combustion burner are mechanically joined, and a diffusion combustion burner support which fixes the diffusion combustion burner to the end flange and is mounted around the premixing fuel nozzle in a manner to cover a root portion of the premixing fuel nozzle, the root portion being a junction between the premixing fuel nozzle and the end flange. An outside diameter of the premixing fuel nozzle longitudinally varies in a manner to progressively increase toward the junction. A maximum diameter of the root portion of the premixing fuel nozzle is greater than an inside diameter of a hole formed in the diffusion combustion burner support.
    Type: Grant
    Filed: June 21, 2016
    Date of Patent: December 3, 2019
    Assignee: Mitsubishi Hitachi Power Systems, Ltd.
    Inventors: Yoshihide Wadayama, Satoshi Kumagai, Yasuhiro Wada, Hirokazu Takahashi
  • Patent number: 10408457
    Abstract: A gas turbine combustor includes a plurality of fuel nozzles, an air hole plate, a plate lip that covers an outer circumference side of the air hole plate, and an outer channel that supplies compressed air to an outer circumferential part of a portion on the plate lip side of the combustion chamber. The outer circumferential surface of the air hole plate includes a first surface joined to the plate lip and a second surface located further on the radial direction inner side of the air hole plate than the first surface to form a space between the second surface and the inner circumferential surface of the plate lip. A communicating hole that communicates the outer channel and the space is provided in the plate lip.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: September 10, 2019
    Assignee: Mitsubishi Hitachi Power Systems, Ltd.
    Inventors: Yasuhiro Akiyama, Akinori Hayashi, Tomohiro Asai
  • Patent number: 10371048
    Abstract: A combustor having a plurality of nozzles (main nozzles) to supply fuel disposed, includes a water supplier that is connected to all or part of the plurality of nozzles to supply water to each of a plurality of fuel pipes. The water supplier is configured to vary a supply amount of water for each of plurality of nozzles to which the water is supplied.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: August 6, 2019
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Takahiro Yamauchi, Keijiro Saito, Satoshi Takiguchi, Koichi Nishida, Masakazu Nose
  • Patent number: 10309653
    Abstract: A bundled tube fuel nozzle includes a forward plate, a first intermediate plate and an outer sleeve defining a fuel plenum, a second intermediate plate axially spaced from the first intermediate plate where the first intermediate plate, the second intermediate plate and the outer sleeve define a purge air plenum, an aft plate axially spaced from the second intermediate plate where the second intermediate plate, the aft plate and the outer sleeve define a cooling air plenum and an annular wall that extends from the second intermediate plate to the aft plate. The annular wall defines a cooling flow channel within the bundled tube fuel nozzle. A plurality of apertures is defined proximate to a cool side of the aft plate and provide for fluid communication between the cooling flow channel and the cooling air plenum.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: June 4, 2019
    Assignee: General Electric Company
    Inventors: Patrick Benedict Melton, David William Cihlar, Timothy James Purcell
  • Patent number: 10196977
    Abstract: Experimental and numerical investigations on an atmospheric diffusion oxy-combustion flame in a gas turbine model combustor are conducted. The combustor is fuelled with CH4CH4 and a mixture of CO2 and O2 as oxidizer. The stability of the oxy-combustion flame is affected when the operating percentage of oxygen in the oxidizer mixture is reduced below 25%. A new 3D reactor design is introduced for the substitution of ITM reactors into a gas turbine combustor. A new oxygen permeation equation model has been developed by fitting the experimental data available in the literature for a LSCF ion transport membrane. The monolith structure design ITM reactor is capable of delivering power ranging from 5 to 8 MWe based on cycle first law efficiency.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: February 5, 2019
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Medhat Ahmed Nemitallah, Mohamed Abdel-Aziz Habib
  • Patent number: 10184396
    Abstract: Experimental and numerical investigations on an atmospheric diffusion oxy-combustion flame in a gas turbine model combustor are conducted. The combustor is fuelled with CH4CH4 and a mixture of CO2 and O2 as oxidizer. The stability of the oxy-combustion flame is affected when the operating percentage of oxygen in the oxidizer mixture is reduced below 25%. A new 3D reactor design is introduced for the substitution of ITM reactors into a gas turbine combustor. A new oxygen permeation equation model has been developed by fitting the experimental data available in the literature for a LSCF ion transport membrane. The monolith structure design ITM reactor is capable of delivering power ranging from 5 to 8 MWe based on cycle first law efficiency.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: January 22, 2019
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Medhat Ahmed Nemitallah, Mohamed Abdel-Aziz Habib
  • Patent number: 10145253
    Abstract: A stator vane for a turbine machine includes a set of vane parts arranged relative to each other to define air flow stream paths between vane parts, and a mechanism circulating a fluid to be cooled by the air flow.
    Type: Grant
    Filed: April 4, 2013
    Date of Patent: December 4, 2018
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventor: Nils Bordoni
  • Patent number: 10101033
    Abstract: An engine includes an elongated pulse detonation combustor tube having an arcuate combustion path over a majority of an entire length of the combustor tube, and an elongated portion of the combustor tube being oriented transverse to a central axis of the engine.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: October 16, 2018
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: James D. Hill, Michael J. Cuozzo
  • Patent number: 10066854
    Abstract: A movable fluid fuel heater to heat air and to introduce it into an environment to be heated. The heater includes a flow rate variator device for varying the flow rate of oxidizing air introduced in the combustion chamber by a forced ventilation device between a minimum flow rate value and a maximum flow rate value. The heater also includes a reference device comprising a plurality of reference values of a parameter representative of the pressure and a plurality of reference temperature values of the environmental air upstream of the combustion chamber. The reference device is configured to suggest an optimal setting value to set the flow rate variator device, at each pair of values formed by a value of the plurality of reference values of a parameter representative of the pressure and a value of the plurality of reference temperature values.
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: September 4, 2018
    Assignee: Dantherm S.p.A.
    Inventors: Enzo Giaretta, Stefano Marchiotto, Giuseppe Toniato, Stefano Verani
  • Patent number: 10036551
    Abstract: A flat flame oxy-fuel burner including a gaseous fuel nozzle having a hydraulic diameter Dh-NG and a width to height ratio w/a of at least 2; a primary oxidant conduit surrounding the fuel nozzle to form an annular primary oxidant nozzle between the fuel nozzle and the oxidant conduit, the oxidant conduit having a height b, the respective outlet ends of the fuel nozzle and the oxidant nozzle being aligned; and a precombustor extending from the outlet end of the fuel and oxidant nozzles and having a length L and a hydraulic diameter Dh; wherein the ratio L/Dh is non-zero and less than or equal to 4; wherein the ratio L/Dh-NG, is non-zero and less than or equal to 12; and wherein the dimensions a, b, and w are sized to yield a primary oxidant Reynolds number from 200 to 22,000 during burner is operation at 0.05 to 1 MMBtu/hr.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: July 31, 2018
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Tunc Goruney, Xiaoyi He
  • Patent number: 10018359
    Abstract: A gas turbine combustor 2 according to the present invention comprises: a combustion chamber 50 in which fuel is burned with air to generate combustion gas; a plurality of fuel nozzles 30 arranged in multiple concentric annular rows; a first plate 32 arranged downstream of the fuel nozzles 30 and having multiple concentric circular air hole rows made up of a plurality of air holes corresponding to the fuel nozzles 30; a second plate 33 arranged downstream of the first plate 32 and having multiple air hole rows corresponding to the air hole rows of the first plate 32; and a partition wall part 37 which partitions a space part 46 between the first plate 32 and the second plate 33 into rooms corresponding to the air hole rows.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: July 10, 2018
    Assignee: Mitsubishi Hitachi Power Systems, Ltd.
    Inventors: Kazuki Abe, Tomomi Koganezawa, Keisuke Miura
  • Patent number: 9976522
    Abstract: A fuel injector for a combustion engine includes an injector head including a nozzle, a premixer, and a distributor structured to distribute a plurality of different fuels to different sets of fueling orifices in the premixer. A pilot assembly of the fuel injector is coupled to the premixer and includes a first fueling passage for a first fuel and a second fueling passage for a second fuel. Multiple sets of fueling orifices are positioned within the fuel injector, the fueling orifice sets being selectively connectable to a plurality of different fuel supplies, and both located and sized so as to accommodate a wide range of flow rates to enable a combustion engine coupled with the fuel injector to operate on fuels having a range of Wobbe indices and compositions.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: May 22, 2018
    Assignee: Solar Turbines Incorporated
    Inventors: Rajeshriben Patel, James Scott Piper, Raymond Alvarez, Rasoul Paydar, Ram Srinivasan
  • Patent number: 9909999
    Abstract: An inspection method include introducing a mixture of expanding foam and a particulate material into a region of interest of an object, fixing the powder within the region of the interest relative to the object, and acquiring image data of the object and particulate mixture using an x-ray source and an x-ray detector. The particulate has a density that is greater than the density of a material forming the object to provide contrast between the region of interest and the object in an image generated using the image data.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: March 6, 2018
    Assignee: Delavan Inc.
    Inventors: Eric Karlen, William L. Wentland
  • Patent number: 9897322
    Abstract: A combustor can assembly includes a plurality of combustor cans spaced circumferentially about a gas turbine engine. Each combustor can is coupled in flow communication with at least one fuel manifold via a respective can fuel line. The combustor can assembly also includes a first interconnecting fuel line that includes a first end and a second end. The first end is coupled in flow communication with the can fuel line of a first combustor can, and the second end is coupled in flow communication with the can fuel line of a second combustor can that is not circumferentially adjacent to the first combustor can. The combustor can assembly further includes a first control device operatively coupled to the can fuel line of the first combustor can. The first control device is operable to change a dynamic operational characteristic of the first and second combustor cans independently of other combustor cans.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: February 20, 2018
    Assignee: General Electric Company
    Inventors: Kihyung Kim, Diego Fernando Rancruel, Prashant C. Mahalingappanavar
  • Patent number: 9803867
    Abstract: A premix pilot nozzle includes a tip portion having a downstream surface that extends between a downstream end of an inner wall of the tip portion and a downstream end of an outer wall of the tip portion. The downstream end of the inner wall terminates axially upstream from the downstream end of the outer wall. At least a portion of the downstream surface is curvilinear. The tip portion further comprises a plurality of axially extending premix tubes annularly arranged about the tip portion. Each premix tube defines a premix flow passage through the tip portion. Each premix tube also includes an outlet that is axially offset from the downstream surface.
    Type: Grant
    Filed: April 21, 2015
    Date of Patent: October 31, 2017
    Assignee: GENERAL ELECTRIC COMPANY
    Inventor: Jason Thurman Stewart
  • Patent number: 9664391
    Abstract: An annular type gas turbine combustor having a plurality of fuel nozzle assemblies (10) on a circumference includes a pilot nozzle unit (12) for spraying a fuel for diffusive combustion from a pilot outer peripheral nozzle (34) into a combustion chamber (8), a main nozzle unit (14) provided so as to surround the pilot nozzle unit (12) for spraying a fuel for premix combustion, and a flow guide (27) disposed on a downstream side of each of the fuel nozzle assemblies (10) and having a sectional area of a passage for air and air-fuel mixture from each of the fuel nozzle assemblies (10), which gradually increase in a downstream direction.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: May 30, 2017
    Assignees: KAWASAKI JUKOGYO KABUSHIKI KAISHA, JAPAN AEROSPACE EXPLORATION AGENCY
    Inventors: Masayoshi Kobayashi, Takeo Oda, Ryusuke Matsuyama, Atsushi Horikawa, Hitoshi Fujiwara
  • Patent number: 9599019
    Abstract: The present disclosure relates generally to a dual oil supply tube for a gas turbine engine. The dual oil supply tube locates a scheduled damper supply tube inside a compartment oil supply tube which remains full while the engine is operating.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: March 21, 2017
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Marc J. Muldoon, Gary L. Grogg, Grace E. Szymanski
  • Patent number: 9464807
    Abstract: Provided is a combustor including a support shaft, a wing portion provided on the support shaft and configured to swirl a first fluid around the support shaft, and a cover housing enclosing the support shaft and the wing portion and includes a space enlarging portion provided at a downstream of of the wing portion, where a distance of the space enlarging portion from an outer surface of the support shaft is different from distances of other portions of the cover housing from the outer surface of the support shaft.
    Type: Grant
    Filed: January 21, 2015
    Date of Patent: October 11, 2016
    Assignee: Hanwha Techwin Co., Ltd.
    Inventors: Sinhyun Kim, Seungchai Jung, Siwon Yang
  • Patent number: 9464575
    Abstract: A method and device for igniting a turbomachine combustion chamber including alternately: an intake phase of a fluid into a chamber through an intake port, during which a piston compresses an elastic mechanism under pressure of the fluid such that the elastic mechanism applies onto a piezoelectric element a force sufficient for the piezoelectric element to induce between the electrodes an electric voltage enabling an electric arc to be generated, until the piston reaches a predetermined position for closing a valve for sealing the intake port; and an exhaust phase of the fluid, during which the elastic mechanism pushes back the piston to induce a fluid ejection out of the chamber through an exhaust port, and the valve is open.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: October 11, 2016
    Assignee: SNECMA
    Inventors: Etienne Juchauld, Jean-Pierre Badinier, Jean Pierre Roberdeau, Marc Serrau
  • Patent number: 9453429
    Abstract: A turbine casing includes at least one shell adapted to enclose one or more turbine stages in a gas turbine engine; an air inlet in the at least one shell; a flow sleeve secured to an inside surface of the at least one shell, the flow sleeve comprising at least two arcuate segments. Each arcuate segment includes an arcuate base, a pair of sidewalls extending radially outwardly of the base thereby forming a circumferentially-extending flow channel defined by the base, the sidewalls and the inside surface. The air inlet is aligned with the flow channel and the sleeve is configured to distribute air flowing in the channel into spaces proximate the one or more turbine stages in circumferential, radial and axial directions, including along the inside surface of the at least one shell.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: September 27, 2016
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Radu Ioan Danescu, David Martin Johnson, Kenneth Damon Black, Christopher Paul Cox, Ozgur Bozkurt
  • Patent number: 9430117
    Abstract: In a stream computing application, data may be transmitted between operators using tuples. However, the receiving operator may not evaluate these tuples as they arrive but instead wait to evaluate a group of tuples—i.e., a window. A window is typically triggered when a buffer associated with the receiving operator reaches a maximum window size or when a predetermined time period has expired. Additionally, a window may be triggered by a monitoring a tuple rate—i.e., the rate at which the operator receives the tuples. If the tuple rate exceeds or falls below a threshold, a window may be triggered. Further, the number of exceptions, or the rate at which an operator throws exceptions, may be monitored. If either of these parameters satisfies a threshold, a window may be triggered, thereby instructing an operator to evaluate the tuples contained within the window.
    Type: Grant
    Filed: January 11, 2012
    Date of Patent: August 30, 2016
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Michael J. Branson, John M. Santosuosso, Brandon W. Schulz
  • Patent number: 9400114
    Abstract: A gas turbine comprises a compressor discharge casing that is coupled to an outer turbine shell. The compressor discharge casing includes a combustor opening that extends through the compressor discharge casing and an outer mating surface that circumferentially surrounds the combustor opening. The outer turbine shell defines an inner mating surface. A combustion module extends through the combustor opening. The combustion module includes a forward end that is circumferentially surrounded by a mounting flange and an aft end that is circumferentially surrounded by an aft frame. The mounting flange extends circumferentially around the combustor opening. The mounting flange is coupled to the outer mating surface of the compressor discharge casing and the aft frame is coupled to the inner mating surface of the outer turbine shell.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: July 26, 2016
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Patrick Benedict Melton, Lucas John Stoia, Richard Martin DiCintio, Christopher Paul Willis