Patents by Inventor David Justin Brady
David Justin Brady 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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Patent number: 11959423Abstract: A fuel supply system for a turbine engine that provides a modulated thrust control malfunction accommodation (TCMA) is disclosed. An example fuel supply system includes a fuel supply line to supply fuel to a combustion engine, a fuel metering valve coupled to the fuel supply line, the fuel metering valve to control a flow of fuel through the fuel supply line to the combustion engine, a throttle valve coupled to the fuel supply line downstream of the fuel metering valve, the throttle valve to bleed off fuel supplied to the combustion engine based on a pressure difference across the fuel metering valve, and a controllable servo coupled to the throttle valve, the controllable servo to control the throttle valve based on a sensor output indicative of the pressure difference.Type: GrantFiled: July 20, 2022Date of Patent: April 16, 2024Assignee: General Electric CompanyInventor: David Justin Brady
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Patent number: 11946419Abstract: Methods and apparatus to produce hydrogen gas turbine propulsion are disclosed. An example apparatus to produce propulsion in a gas turbine engine includes a fluid line to transport hydrogen from a hydrogen supply and an inert gas from an inert gas supply to a gas turbine combustor. The apparatus also includes at least one heat exchanger coupled to the fluid line to heat the inert gas and the hydrogen in the fluid line.Type: GrantFiled: February 23, 2022Date of Patent: April 2, 2024Assignees: General Electric Company, GE AVIO S.R.L.Inventors: David Justin Brady, Mirko Gernone, Nathan E Gibson
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Patent number: 11851204Abstract: A fuel delivery system for a gas turbine engine includes a fuel tank; a draw pump downstream of the fuel tank for generating a liquid fuel flow from the fuel tank; a main fuel pump downstream of the draw pump; and a fuel oxygen conversion unit downstream of the draw pump and upstream of the main fuel pump. The fuel oxygen conversion unit includes a stripping gas line; a contactor in fluid communication with the stripping gas line and the draw pump for forming a fuel/gas mixture; and a dual separator pump in fluid communication with the contactor for receiving the fuel/gas mixture and separating the fuel/gas mixture into a stripping gas flow and the liquid fuel flow at a location upstream of the main fuel pump.Type: GrantFiled: November 2, 2018Date of Patent: December 26, 2023Assignee: General Electric CompanyInventors: Ethan Patrick O'Connor, Daniel Alan Niergarth, Brandon Wayne Miller, Richard Alan Wesling, David Justin Brady
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Publication number: 20230392605Abstract: Impeller bearings for pumps are disclosed. An example fluid pump includes a motor, a shaft coupled to a rotor of the motor, an impeller coupled to the shaft, a first radial bearing positioned around the shaft of the motor aft of the motor, and a second radial bearing positioned around the impeller.Type: ApplicationFiled: June 3, 2022Publication date: December 7, 2023Inventors: David Raju Yamarthi, Brian G. Brzek, Adam Joseph Wangler, David Justin Brady, Prachi Anand Tappu, Santosh Pattnaik, Mohan Kannaiah Raju
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Publication number: 20230358180Abstract: Methods and apparatus to operate gas turbines with hydrogen as the combusting fuel are disclosed. An example gas turbine system includes an intercooler disposed between at a fan and at least a portion of a compressor, and at least one conduit to define a flow path to convey fluid, the flow path including a first portion and a second portion, the first portion of the flow path to carry the fluid to or through the intercooler, the second portion of the flow path to carry the fluid at least partially around at least one of a low-pressure turbine or an exhaust section downstream of a combustor.Type: ApplicationFiled: May 4, 2022Publication date: November 9, 2023Inventor: David Justin Brady
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Publication number: 20230305584Abstract: Example split valves for regulating a first flowrate and a second flowrate of a fluid within a closed loop systems are disclosed herein. An example split valve includes an electrohydraulic servo valve coupled to a first piston via a first hydraulic flowline and a second hydraulic flowline, the first piston to include a piston shaft, a first head, and a second head; one or more bellows fixed to at least one of the first head or the second head, the one or more bellows to hermetically seal the fluid from a hydraulic fluid; and a control system connected to the electrohydraulic servo valve, the control system to adjust the first flowrate and the second flowrate of the fluid through a first fluid chamber, the first piston to be located in the first fluid chamber.Type: ApplicationFiled: March 23, 2022Publication date: September 28, 2023Inventors: Biao Fang, David Justin Brady, John C. Glessner, Brandon W. Miller, Stephanie Glynn Cotten, William Dwight Gerstler, Daniel A. Niergarth, Michael Joseph Murray
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Publication number: 20230265797Abstract: Methods and apparatus to produce hydrogen gas turbine propulsion are disclosed. An example apparatus to produce propulsion in a gas turbine engine includes a fluid line to transport hydrogen from a hydrogen supply and an inert gas from an inert gas supply to a gas turbine combustor. The apparatus also includes at least one heat exchanger coupled to the fluid line to heat the inert gas and the hydrogen in the fluid line.Type: ApplicationFiled: February 23, 2022Publication date: August 24, 2023Inventors: David Justin Brady, Mirko Gernone, Nathan E Gibson
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Publication number: 20230243311Abstract: A fuel supply system for a combustion section of a turbine engine. The turbine engine including a heat source. The fuel supply system comprising a first fuel supply having a liquid fuel, a second fuel supply having a first gaseous fuel, and a heat exchanger fluidly coupled to the first fuel supply and the heat source. The heat exchanger producing a heat sufficient to change the liquid fuel to a second gaseous fuel that is the same type of fuel as the first gaseous fuel.Type: ApplicationFiled: February 1, 2022Publication date: August 3, 2023Inventors: David Justin Brady, Mirko Gernone, Michael A. Benjamin, Steven C. Vise
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Patent number: 11674443Abstract: A fuel system for a vehicle having an engine is provided. The fuel system including: a fuel tank for holding a hydrogen fuel in a liquid phase; a fuel delivery assembly extending from the fuel tank to the engine for providing the hydrogen fuel from the fuel tank to the engine; a vaporizer in communication with the fuel delivery assembly for heating the hydrogen fuel in the liquid phase to a gaseous phase, to a supercritical phase, or both; and a high pressure pump in fluid communication with the fuel delivery assembly at a location downstream of the vaporizer for inducing a flow of the hydrogen fuel through the fuel delivery assembly to the engine.Type: GrantFiled: September 14, 2021Date of Patent: June 13, 2023Assignees: General Electric Company, GE Avio S.r.l.Inventors: Nathan Evan McCurdy Gibson, David Justin Brady, Justin Paul Smith, Mirko Gernone
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Publication number: 20230129155Abstract: A fuel supply system for a turbine engine that provides a modulated thrust control malfunction accommodation (TCMA) is disclosed. An example fuel supply system includes a fuel supply line to supply fuel to a combustion engine, a fuel metering valve coupled to the fuel supply line, the fuel metering valve to control a flow of fuel through the fuel supply line to the combustion engine, a throttle valve coupled to the fuel supply line downstream of the fuel metering valve, the throttle valve to bleed off fuel supplied to the combustion engine based on a pressure difference across the fuel metering valve, and a controllable servo coupled to the throttle valve, the controllable servo to control the throttle valve based on a sensor output indicative of the pressure difference.Type: ApplicationFiled: July 20, 2022Publication date: April 27, 2023Inventor: David Justin Brady
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Patent number: 11396848Abstract: A fuel supply system for a turbine engine that provides a modulated thrust control malfunction accommodation (TCMA). The fuel supply system can include a fuel line that fluidly connects a fuel tank and the turbine engine. A fuel pump and a fuel metering valve can be fluidly connected to the fuel line. A bypass line can fluidly connect to the fuel line. Flow through the bypass line can be controlled using a bypass valve and a balancing pressure valve. The TCMA can then modulate the fuel flow using the valves.Type: GrantFiled: July 10, 2019Date of Patent: July 26, 2022Assignee: GENERAL ELECTRIC COMPANYInventor: David Justin Brady
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Publication number: 20220145801Abstract: A fuel system for a vehicle having an engine is provided. The fuel system including: a fuel tank for holding a hydrogen fuel in a liquid phase; a fuel delivery assembly extending from the fuel tank to the engine for providing the hydrogen fuel from the fuel tank to the engine; a vaporizer in communication with the fuel delivery assembly for heating the hydrogen fuel in the liquid phase to a gaseous phase, to a supercritical phase, or both; and a high pressure pump in fluid communication with the fuel delivery assembly at a location downstream of the vaporizer for inducing a flow of the hydrogen fuel through the fuel delivery assembly to the engine.Type: ApplicationFiled: September 14, 2021Publication date: May 12, 2022Inventors: Nathan Evan McCurdy Gibson, David Justin Brady, Justin Paul Smith, Mirko Gernone
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Publication number: 20210340938Abstract: An engine system is provided for an aircraft having an engine and an engine controller. The engine system includes: an electric machine configured to be in electrical communication with the engine controller for powering the engine controller; and a fuel oxygen reduction unit defining a liquid fuel flowpath and a stripping gas flowpath and configured to transfer an oxygen content of a fuel flow through the liquid fuel flowpath to a stripping gas flow through the stripping gas flowpath, the fuel oxygen reduction unit also in electrical communication with the electric machine such that the electric machine powers at least in part the fuel oxygen reduction unit.Type: ApplicationFiled: May 1, 2020Publication date: November 4, 2021Inventors: Brandon Wayne Miller, Robert Jon McQuiston, David Justin Brady
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Publication number: 20210010429Abstract: A fuel supply system for a turbine engine that provides a modulated thrust control malfunction accommodation (TCMA). The fuel supply system can include a fuel line that fluidly connects a fuel tank and the turbine engine. A fuel pump and a fuel metering valve can be fluidly connected to the fuel line. A bypass line can fluidly connect to the fuel line. Flow through the bypass line can be controlled using a bypass valve and a balancing pressure valve. The TCMA can then modulate the fuel flow using the valves.Type: ApplicationFiled: July 10, 2019Publication date: January 14, 2021Inventor: David Justin Brady
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Publication number: 20200140111Abstract: A fuel delivery system for a gas turbine engine includes a fuel tank; a draw pump downstream of the fuel tank for generating a liquid fuel flow from the fuel tank; a main fuel pump downstream of the draw pump; and a fuel oxygen conversion unit downstream of the draw pump and upstream of the main fuel pump. The fuel oxygen conversion unit includes a stripping gas line; a contactor in fluid communication with the stripping gas line and the draw pump for forming a fuel/gas mixture; and a dual separator pump in fluid communication with the contactor for receiving the fuel/gas mixture and separating the fuel/gas mixture into a stripping gas flow and the liquid fuel flow at a location upstream of the main fuel pump.Type: ApplicationFiled: November 2, 2018Publication date: May 7, 2020Inventors: Ethan Patrick O'Connor, Daniel Alan Niergarth, Brandon Wayne Miller, Richard Alan Wesling, David Justin Brady