Patents by Inventor Owen GRAHAM
Owen GRAHAM 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: 20240157383Abstract: A spray nozzle includes a first conduit that provides a first flow path for a first type of fluid, a second conduit that provides a second flow path for a second fluid that is different from the first fluid, a first dispensing aperture that ejects therefrom a spray that includes the first type of fluid and/or the second type of fluid, and at least one balancing outlet in fluid communication with the second conduit. The at least one balancing outlet permit the second type of fluid to exit therefrom to balance a force of ejection of the spray from the first dispensing aperture.Type: ApplicationFiled: November 14, 2022Publication date: May 16, 2024Inventors: Ambarish J. Kulkarni, Andrew Crispin Graham, Byron A. Pritchard, Todd William Danko, Bernard P. Bewlay, Stuart James Briggs, Trevor Owen Hawke
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Publication number: 20230324048Abstract: The systems and methods described herein relate to a dome of a gas turbine assembly configured to suppress pressure pulsations. The systems and methods provide a dome having an aperture configured to surround an injector assembly of a combustor. The dome having a front panel extending radially from the aperture. The systems and methods couple a first cavity to the front panel. The first cavity includes a series of ducts. A first duct of the series of ducts is configured to receive airflow into the first cavity from a compressor and a second set of ducts of the series of ducts and a third duct of the series of ducts are configured to direct airflow to the combustor from the first cavity, wherein the third duct has a larger diameter than the second set of ducts.Type: ApplicationFiled: December 21, 2022Publication date: October 12, 2023Applicant: General Electric CompanyInventors: Owen Graham, Sharath Nagaraja, Nicholas Magina, Fei Han, Kwanwoo Kim
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Patent number: 11536457Abstract: The systems and methods described herein relate to a dome of a gas turbine assembly configured to suppress pressure pulsations. The systems and methods provide a dome having an aperture configured to surround an injector assembly of a combustor. The dome having a front panel extending radially from the aperture. The systems and methods couple a first cavity to the front panel. The first cavity includes a series of ducts. A first duct of the series of ducts is configured to receive airflow into the first cavity from a compressor and a second set of ducts of the series of ducts and a third duct of the series of ducts are configured to direct airflow to the combustor from the first cavity, wherein the third duct has a larger diameter than the second set of ducts.Type: GrantFiled: December 30, 2020Date of Patent: December 27, 2022Assignee: GENERAL ELECTRIC COMPANYInventors: Owen Graham, Kwanwoo Kim, Nicholas Magina, Sharath Nagaraja, Fei Han
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Publication number: 20210302020Abstract: The systems and methods described herein relate to a dome of a gas turbine assembly configured to suppress pressure pulsations. The systems and methods provide a dome having an aperture configured to surround an injector assembly of a combustor. The dome having a front panel extending radially from the aperture. The systems and methods couple a first cavity to the front panel. The first cavity includes a series of ducts. A first duct of the series of ducts is configured to receive airflow into the first cavity from a compressor and a second set of ducts of the series of ducts and a third duct of the series of ducts are configured to direct airflow to the combustor from the first cavity, wherein the third duct has a larger diameter than the second set of ducts.Type: ApplicationFiled: December 30, 2020Publication date: September 30, 2021Inventors: Owen Graham, Kwanwoo Kim, Nicholas Magina, Sharath Nagaraja, Fei Han
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Patent number: 10941939Abstract: The systems and methods described herein relate to a dome of a gas turbine assembly configured to suppress pressure pulsations. The systems and methods provide a dome having an aperture configured to surround an injector assembly of a combustor. The dome having a front panel extending radially from the aperture. The systems and methods couple a first cavity to the front panel. The first cavity includes a series of ducts. A first duct of the series of ducts is configured to receive airflow into the first cavity from a compressor and a second set of ducts of the series of ducts and a third duct of the series of ducts are configured to direct airflow to the combustor from the first cavity, wherein the third duct has a larger diameter than the second set of ducts.Type: GrantFiled: September 25, 2017Date of Patent: March 9, 2021Assignee: GENERAL ELECTRIC COMPANYInventors: Owen Graham, Kwanwoo Kim, Nicholas Magina, Sharath Nagaraja, Fei Han
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Patent number: 10724739Abstract: The present disclosure is directed to a combustor assembly for a gas turbine engine. The combustor assembly includes an annular bulkhead adjacent to a diffuser cavity; a deflector downstream of the bulkhead and adjacent to a combustion chamber; a bulkhead support coupled to an upstream side of the deflector; a first walled enclosure coupled to the bulkhead support; and a second walled enclosure coupled to the first walled enclosure. The deflector and the bulkhead support together define a bulkhead conduit therethrough to the combustion chamber. The first walled enclosure defines a first cavity and a hot side orifice. The hot side orifice is adjacent to and in fluid communication with the bulkhead conduit. The second walled enclosure defines a second cavity and a second opening adjacent to a diffuser cavity.Type: GrantFiled: March 24, 2017Date of Patent: July 28, 2020Assignee: General Electric CompanyInventors: Kwanwoo Kim, Owen Graham, Clayton Stuart Cooper
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Patent number: 10513984Abstract: In one aspect the present subject matter is directed to a system for suppressing acoustic noise within a combustion section of a gas turbine. The system includes at least one static structure disposed forward of a combustion chamber defined within the combustion section. The static structure at least partially defines a diffuser cavity upstream of the combustion chamber. A baffle plate is coupled to the static structure. The baffle plate and the static structure at least partially define an air plenum within the combustion section forward of the combustion chamber. The baffle plate includes an aperture that provides for fluid communication between the diffuser cavity and the air plenum. The at least one static structure and the baffle plate define a Helmholtz resonator within the combustion section.Type: GrantFiled: August 25, 2015Date of Patent: December 24, 2019Assignee: General Electric CompanyInventors: Kwanwoo Kim, Fei Han, Owen Graham
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Patent number: 10352567Abstract: The present disclosure relates to a fuel-air premixer for a turbine system. The fuel-air premixer includes a swirler and a centerbody. The swirler is configured to direct a flow of air through the premixer, and the centerbody is configured to inject fuel into the flow of air. Additionally, the centerbody includes an airfoil shape that reduces and/or substantially eliminates recirculation pockets to prevent autoignition and/or flame holding in a combustion chamber. Accordingly, the turbine system may produce fewer NOx emissions.Type: GrantFiled: October 9, 2015Date of Patent: July 16, 2019Assignee: GENERAL ELECTRIC COMPANYInventors: Liangyu Wang, Anthony John Dean, Keith Robert McManus, Kapil Kumar Singh, Suhui Li, Sravan Kumar Dheeraj Kapilavai, Mathew Paul Thariyan, Owen Graham
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Publication number: 20190093891Abstract: The systems and methods described herein relate to a dome of a gas turbine assembly configured to suppress pressure pulsations. The systems and methods provide a dome having an aperture configured to surround an injector assembly of a combustor. The dome having a front panel extending radially from the aperture. The systems and methods couple a first cavity to the front panel. The first cavity includes a series of ducts. A first duct of the series of ducts is configured to receive airflow into the first cavity from a compressor and a second set of ducts of the series of ducts and a third duct of the series of ducts are configured to direct airflow to the combustor from the first cavity, wherein the third duct has a larger diameter than the second set of ducts.Type: ApplicationFiled: September 25, 2017Publication date: March 28, 2019Inventors: Owen Graham, Kwanwoo Kim, Nicholas Magina, Sharath Nagaraja, Fei Han
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Publication number: 20180313540Abstract: The present disclosure is directed to a combustor assembly for a gas turbine engine. The combustor assembly defines a combustion chamber and a diffuser cavity disposed upstream of the combustion chamber. The combustor assembly includes an acoustic damper that includes an aft wall adjacent to the combustion chamber and a forward wall adjacent to the diffuser cavity. A connecting wall is extended at least along the longitudinal direction and coupled to the aft wall and the forward wall. A damper cavity is defined by the connecting wall, the aft wall, and the forward wall.Type: ApplicationFiled: May 1, 2017Publication date: November 1, 2018Inventors: Sharath Bangalore Nagaraja, Owen Graham, Kwankoo Kim, Manampathy Gangadharan Giridharan, Gregory Allen Boardman
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Publication number: 20180274780Abstract: The present disclosure is directed to a combustor assembly for a gas turbine engine. The combustor assembly includes an annular bulkhead adjacent to a diffuser cavity; a deflector downstream of the bulkhead and adjacent to a combustion chamber; a bulkhead support coupled to an upstream side of the deflector; a first walled enclosure coupled to the bulkhead support; and a second walled enclosure coupled to the first walled enclosure. The deflector and the bulkhead support together define a bulkhead conduit therethrough to the combustion chamber. The first walled enclosure defines a first cavity and a hot side orifice. The hot side orifice is adjacent to and in fluid communication with the bulkhead conduit. The second walled enclosure defines a second cavity and a second opening adjacent to a diffuser cavity.Type: ApplicationFiled: March 24, 2017Publication date: September 27, 2018Inventors: Kwanwoo Kim, Owen Graham, Clayton Stuart Cooper
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Publication number: 20170102147Abstract: The present disclosure relates to a fuel-air premixer for a turbine system. The fuel-air premixer includes a swirler and a centerbody. The swirler is configured to direct a flow of air through the premixer, and the centerbody is configured to inject fuel into the flow of air. Additionally, the centerbody includes an airfoil shape that reduces and/or substantially eliminates recirculation pockets to prevent autoignition and/or flame holding in a combustion chamber. Accordingly, the turbine system may produce fewer NOx emissions.Type: ApplicationFiled: October 9, 2015Publication date: April 13, 2017Inventors: Liangyu Wang, Anthony John Dean, Keith Robert McManus, Kapil Kumar Singh, Suhui Li, Sravan Kumar Dheeraj Kapilavai, Mathew Paul Thariyan, Owen Graham
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Publication number: 20170058780Abstract: In one aspect the present subject matter is directed to a system for suppressing acoustic noise within a combustion section of a gas turbine. The system includes at least one static structure disposed forward of a combustion chamber defined within the combustion section. The static structure at least partially defines a diffuser cavity upstream of the combustion chamber. A baffle plate is coupled to the static structure. The baffle plate and the static structure at least partially define an air plenum within the combustion section forward of the combustion chamber. The baffle plate includes an aperture that provides for fluid communication between the diffuser cavity and the air plenum. The at least one static structure and the baffle plate define a Helmholtz resonator within the combustion section.Type: ApplicationFiled: August 25, 2015Publication date: March 2, 2017Inventors: Kwankoo KIM, Fei HAN, Owen GRAHAM