Patents by Inventor David August Snider
David August Snider 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).
-
Patent number: 11326521Abstract: A method of igniting liquid fuel in a turbomachine combustor is provided. The method includes a step of initiating a flow of gaseous fuel from a gaseous fuel supply to a gaseous fuel nozzle. The method further includes a step of initiating a flow of liquid fuel from a liquid fuel supply to a primary liquid fuel cartridge. After initiating both the flow of gaseous fuel and the flow of liquid fuel, the method includes a step of igniting the flow of gaseous fuel and the flow of liquid fuel with an igniter. The method further includes a step of terminating the flow of gaseous fuel from the gaseous fuel supply to the gaseous fuel nozzle.Type: GrantFiled: June 30, 2020Date of Patent: May 10, 2022Assignee: General Electric CompanyInventors: Steven C. Castellaw, David August Snider, Mark William Pinson, Mark Mitchell, Robert Walter Arnold, Christopher Grant Cooper
-
Publication number: 20210404392Abstract: A method of igniting liquid fuel in a turbomachine combustor is provided. The method includes a step of initiating a flow of gaseous fuel from a gaseous fuel supply to a gaseous fuel nozzle. The method further includes a step of initiating a flow of liquid fuel from a liquid fuel supply to a primary liquid fuel cartridge. After initiating both the flow of gaseous fuel and the flow of liquid fuel, the method includes a step of igniting the flow of gaseous fuel and the flow of liquid fuel with an igniter. The method further includes a step of terminating the flow of gaseous fuel from the gaseous fuel supply to the gaseous fuel nozzle.Type: ApplicationFiled: June 30, 2020Publication date: December 30, 2021Inventors: Steven C. Castellaw, David August Snider, Mark William Pinson, Mark Mitchell, Robert Walter Arnold, Christopher Grant Cooper
-
Patent number: 10487750Abstract: A non-transitory computer readable storage medium storing one or more processor-executable instructions wherein the one or more instructions when executed by a processor of a controller, cause acts to be performed is provided. The acts to be performed include obtaining one or more signals representative of ambient conditions and one or more operating conditions of the gas turbine engine, executing a model to predict a duration of a startup time for the gas turbine engine based on the ambient conditions and the one or more operating conditions, and causing a display to display the predicted duration of the startup time of the gas turbine engine.Type: GrantFiled: February 27, 2017Date of Patent: November 26, 2019Assignee: GENERAL ELECTRIC COMPANYInventors: Rajeev Kumar Verma, Vikram Srinivasa Muralidharan, Pramod Kumar Yadav, Bryan Edward Sweet, David August Snider
-
Patent number: 10100747Abstract: A fuel supply system for use in a gas turbine engine is provided. The fuel supply system includes a fuel manifold, and a shutoff valve coupled in flow communication with the fuel manifold and positioned upstream from said fuel manifold. The shutoff valve is configured to actuate into a closed position when the gas turbine engine is operating at an overspeed condition. The system also includes a relief valve coupled in flow communication with the fuel manifold, wherein the relief valve is configured to release fuel from within the fuel manifold when the shutoff valve is in the closed position, and when a pressure within the fuel manifold is greater than a first predetermined threshold.Type: GrantFiled: November 18, 2015Date of Patent: October 16, 2018Assignee: General Electric CompanyInventors: Alberto Jose Negroni, David August Snider, William Forrester Seely, Keegan Saunders O'Donnell, Kyle Joseph Conger, Carlos Gabriel Roman
-
Patent number: 10082090Abstract: A system includes a controller including a memory storing instructions and a processor that executes the instructions. The instructions cause the controller to control a steam turbine system coupled to a power generation system to release steam during deceleration of a gas turbine. The instructions cause the controller to receive a first temperature of the gas turbine and a rotational speed of the gas turbine. The instructions cause the controller to calculate an exhaust flow rate of the power generation system based on at least the first input signal and the second input signal. The instructions cause the controller to control the power generation system to isolate a fuel source from the gas turbine at a portion of normal operating speed of the gas turbine sufficient to achieve a predetermined purging volume during coast down of air flow through the power generation system based on the exhaust flow rate.Type: GrantFiled: August 25, 2016Date of Patent: September 25, 2018Assignee: GENERAL ELECTRIC COMPANYInventors: David August Snider, Lewis Berkley Davis, Jr., Michael Joseph Alexander
-
Patent number: 10082087Abstract: A system includes a controller including a memory storing instructions and a processor that executes the instructions. The instructions cause the controller to receive a first input signal of a first temperature at an inlet of a gas turbine of a gas turbine and heat recovery steam generator (HRSG) system and a second input signal of a rotational speed of the gas turbine. The instructions also cause the controller to calculate the exhaust flow rate of the gas turbine and HRSG system based on the first input signal and the second input signal. Further, the instructions cause the controller to control the gas turbine and HRSG system to isolate a fuel source at a portion of normal operating speed of the gas turbine sufficient to achieve a predetermined purging volume during coast down of air flow through the gas turbine and HRSG system based on the exhaust flow rate.Type: GrantFiled: August 25, 2016Date of Patent: September 25, 2018Assignee: GENERAL ELECTRIC COMPANYInventors: Michael Joseph Alexander, Lewis Berkley Davis, Jr., David August Snider
-
Patent number: 10082091Abstract: A system includes a controller of a power generation system including a memory storing instructions and a processor that executes the instructions. The instructions cause the controller to control the power generation system to provide inlet bleed heat flow to a gas turbine during deceleration of the gas turbine. The instructions also cause the controller to receive a first temperature, a rotational speed of the gas turbine, and an inlet bleed heat flow rate. Additionally, the instructions cause the controller to calculate an exhaust flow rate based on at least the first temperature, the rotational speed, and the inlet bleed heat flow rate. Further, the instructions cause the controller to control the power generation system to isolate a fuel source from the gas turbine at a portion of normal operating speed of the gas turbine sufficient to achieve a purging volume during coast down of the gas turbine.Type: GrantFiled: August 25, 2016Date of Patent: September 25, 2018Assignee: GENERAL ELECTRIC COMPANYInventors: David August Snider, Lewis Berkley Davis, Randy Scott Rosson, Michael Joseph Alexander
-
Patent number: 10082089Abstract: A system includes a controller including a memory storing instructions to perform operations of a power generation system and a processor that executes the instructions. The instructions cause the controller to control purging fluid flow to an inlet of a gas turbine, an exhaust of the gas turbine, or a combustion section of the gas turbine. The instructions cause the controller to receive a first temperature at the inlet, a rotational speed of the gas turbine, and a purging fluid flow rate. The instructions cause the controller to calculate an exhaust flow rate of the system based on at least the first temperature, the rotational speed, and the purging fluid flow rate. The instructions cause the controller to control the system to isolate a fuel source from the gas turbine at a portion of normal operating speed sufficient to achieve a purging volume during coast down.Type: GrantFiled: August 25, 2016Date of Patent: September 25, 2018Assignee: GENERAL ELECTRIC COMPANYInventors: Michael Joseph Alexander, Lewis Berkley Davis, Jr., David August Snider
-
Publication number: 20180245519Abstract: A non-transitory computer readable storage medium storing one or more processor-executable instructions wherein the one or more instructions when executed by a processor of a controller, cause acts to be performed is provided. The acts to be performed include obtaining one or more signals representative of ambient conditions and one or more operating conditions of the gas turbine engine, executing a model to predict a duration of a startup time for the gas turbine engine based on the ambient conditions and the one or more operating conditions, and causing a display to display the predicted duration of the startup time of the gas turbine engine.Type: ApplicationFiled: February 27, 2017Publication date: August 30, 2018Inventors: Rajeev Kumar Verma, Vikram Srinivasa Muralidharan, Pramod Kumar Yadav, Bryan Edward Sweet, David August Snider
-
Publication number: 20180058339Abstract: A system includes a controller of a power generation system including a memory storing instructions and a processor that executes the instructions. The instructions cause the controller to control the power generation system to provide inlet bleed heat flow to a gas turbine during deceleration of the gas turbine. The instructions also cause the controller to receive a first temperature, a rotational speed of the gas turbine, and an inlet bleed heat flow rate. Additionally, the instructions cause the controller to calculate an exhaust flow rate based on at least the first temperature, the rotational speed, and the inlet bleed heat flow rate. Further, the instructions cause the controller to control the power generation system to isolate a fuel source from the gas turbine at a portion of normal operating speed of the gas turbine sufficient to achieve a purging volume during coast down of the gas turbine.Type: ApplicationFiled: August 25, 2016Publication date: March 1, 2018Inventors: David August Snider, Lewis Berkley Davis, JR., Randy Scott Rosson, Michael Joseph Alexander
-
Publication number: 20180058335Abstract: A system includes a controller including a memory storing instructions and a processor that executes the instructions. The instructions cause the controller to receive a first input signal of a first temperature at an inlet of a gas turbine of a gas turbine and heat recovery steam generator (HRSG) system and a second input signal of a rotational speed of the gas turbine. The instructions also cause the controller to calculate the exhaust flow rate of the gas turbine and HRSG system based on the first input signal and the second input signal. Further, the instructions cause the controller to control the gas turbine and HRSG system to isolate a fuel source at a portion of normal operating speed of the gas turbine sufficient to achieve a predetermined purging volume during coast down of air flow through the gas turbine and HRSG system based on the exhaust flow rate.Type: ApplicationFiled: August 25, 2016Publication date: March 1, 2018Inventors: Michael Joseph Alexander, Lewis Berkley Davis, JR., David August Snider
-
Publication number: 20180058337Abstract: A system includes a controller including a memory storing instructions to perform operations of a power generation system and a processor that executes the instructions. The instructions cause the controller to control purging fluid flow to an inlet of a gas turbine, an exhaust of the gas turbine, or a combustion section of the gas turbine. The instructions cause the controller to receive a first temperature at the inlet, a rotational speed of the gas turbine, and a purging fluid flow rate. The instructions cause the controller to calculate an exhaust flow rate of the system based on at least the first temperature, the rotational speed, and the purging fluid flow rate. The instructions cause the controller to control the system to isolate a fuel source from the gas turbine at a portion of normal operating speed sufficient to achieve a purging volume during coast down.Type: ApplicationFiled: August 25, 2016Publication date: March 1, 2018Inventors: Michael Joseph Alexander, Lewis Berkley Davis, JR., David August Snider
-
Publication number: 20180058338Abstract: A system includes a controller including a memory storing instructions and a processor that executes the instructions. The instructions cause the controller to control a steam turbine system coupled to a power generation system to release steam during deceleration of a gas turbine. The instructions cause the controller to receive a first temperature of the gas turbine and a rotational speed of the gas turbine. The instructions cause the controller to calculate an exhaust flow rate of the power generation system based on at least the first input signal and the second input signal. The instructions cause the controller to control the power generation system to isolate a fuel source from the gas turbine at a portion of normal operating speed of the gas turbine sufficient to achieve a predetermined purging volume during coast down of air flow through the power generation system based on the exhaust flow rate.Type: ApplicationFiled: August 25, 2016Publication date: March 1, 2018Inventors: David August Snider, Lewis Berkley Davis, JR., Michael Joseph Alexander
-
Publication number: 20170138271Abstract: A fuel supply system for use in a gas turbine engine is provided. The fuel supply system includes a fuel manifold, and a shutoff valve coupled in flow communication with the fuel manifold and positioned upstream from said fuel manifold. The shutoff valve is configured to actuate into a closed position when the gas turbine engine is operating at an overspeed condition. The system also includes a relief valve coupled in flow communication with the fuel manifold, wherein the relief valve is configured to release fuel from within the fuel manifold when the shutoff valve is in the closed position, and when a pressure within the fuel manifold is greater than a first predetermined threshold.Type: ApplicationFiled: November 18, 2015Publication date: May 18, 2017Inventors: Alberto Jose Negroni, David August Snider, William Forrester Seely, Keegan Saunders O'Donnell, Kyle Joseph Conger, Carlos Gabriel Roman
-
Patent number: 9611752Abstract: A compressor start bleed system for a turbine system includes a compressor section. Also included is a turbine section disposed downstream of the compressor section. Further included is at least one duct fluidly coupled to the compressor section, wherein the at least one duct is configured to route a start bleed extraction from the compressor section to a location downstream of the turbine section. Yet further included is at least one control device of the at least one duct configured to actively modulate the start bleed extraction during a part speed operation of the turbine system.Type: GrantFiled: March 15, 2013Date of Patent: April 4, 2017Assignee: General Electric CompanyInventors: Steven William Tillery, David August Snider
-
Publication number: 20170082033Abstract: A fuel supply system is provided having a first fuel gas compressor configured to be driven by a motor and a second fuel gas compressor configured to be driven by a shaft of a gas turbine system. The first fuel gas compressor and the second fuel gas compressor are configured to supply a pressurized fuel flow to a combustor of the gas turbine system, and the first fuel gas compressor and the second fuel gas compressor are coupled to one another in series.Type: ApplicationFiled: June 10, 2014Publication date: March 23, 2017Inventors: Wenjie Wu, Ping Yu, Pradeep Kumar Diddi, Manuele Bigi, David August Snider, Manuel Moises Cardenas
-
Patent number: 8965728Abstract: A method is disclosed for providing a real time, radial exhaust temperature distribution in a gas turbine to improve the understanding of exhaust gas temperature in a manner similar to installing production rakes. The thermocouples are installed along the exhaust frame strut skins at a number of radial positions. The data from the thermocouples along each of the struts is used to produce a normalized radial profile of the turbine exhaust temperature. The existing turbine station instrumentation is then used to expand the normalized profile into an actual profile of the turbine exhaust temperature. The calculations/transfer functions for temperatures are obtained from data collected during performance testing with full rakes. This profile is integrated to determine a bulk Tx to improve gas turbine controls including model-based controls or corrected parameter controls (MBC/CPC) controls, or specific radial temperatures are used, to provide protective action for bucket platforms, or other turbine components.Type: GrantFiled: May 10, 2011Date of Patent: February 24, 2015Assignee: General Electric CompanyInventors: David August Snider, Harold Jordan, Christopher Holsonback
-
Patent number: 8955334Abstract: Systems and methods for controlling the startup of a gas turbine are described. A gas discharge component may be configured to discharge gas from a compressor component associated with the gas turbine. A fuel control component may be configured to control a fuel flow provided to a combustor component associated with the gas turbine. A drive component may be configured to supply a rotational force to a shaft associated with the gas turbine. At least one control device may be configured to (i) direct the gas discharge component to discharge gas from the compressor component, (ii) direct the fuel control component to adjust the fuel flow, and (iii) direct the drive component to rotate the shaft.Type: GrantFiled: July 22, 2010Date of Patent: February 17, 2015Assignee: General Electric CompanyInventors: Brian Patrick Hansen, Christopher Edward LaMaster, Timothy Edward DeJoris, David August Snider
-
Patent number: 8925319Abstract: Systems and methods for model based steam flow control to and/or through a steam turbine component are disclosed. In one embodiment, a system includes: at least one computing device configured to control a steam flow in a power generation system by performing actions comprising: generating a flow model for the steam flow based at least in part on operational data about the steam flow in the power generation system; and adjusting a characteristic of the steam flow based upon the flow model.Type: GrantFiled: August 17, 2012Date of Patent: January 6, 2015Assignee: General Electric CompanyInventors: David August Snider, Scott Victor Hannula
-
Patent number: 8844295Abstract: A method of delivering a purge flow through a gas turbomachine includes generating a purge flow, guiding the purge flow through at least one of a combustor assembly and a turbine portion of the gas turbomachine, determining a cumulative purge volume passing through the one of the combustor assembly and the turbine portion of the gas turbomachine to determine a predetermined purge volume, and discontinuing the purge flow once the predetermined purge volume has passed through the one of the combustor assembly and the turbine portion of the gas turbomachine.Type: GrantFiled: January 3, 2012Date of Patent: September 30, 2014Assignee: General Electric CompanyInventors: David August Snider, Christopher John Morawski