Patents by Inventor Sam David Draper
Sam David Draper 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: 8991149Abstract: A power generation system capable of eliminating NOxcomponents in the exhaust gas by using a 3-way catalyst, comprising a gas compressor to increase the pressure of ambient air fed to the system; a combustor capable of oxidizing a mixture of fuel and compressed air to generate an expanded, high temperature exhaust gas; a turbine that uses the force of the high temperature gas; an exhaust gas recycle (EGR) stream back to the combustor; a 3-way catalytic reactor downstream of the gas turbine engine outlet which treats the exhaust gas stream to remove substantially all of the NOx components; a heat recovery steam generator (HRSG); an EGR compressor feeding gas to the combustor and turbine; and an electrical generator.Type: GrantFiled: December 21, 2011Date of Patent: March 31, 2015Assignee: General Electric CompanyInventors: Ashok Kumar Anand, James Anthony West, Gilbert Otto Kraemer, Hasan Ui Karim, Sam David Draper, Jonathan Dwight Berry
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Patent number: 8910485Abstract: The present application provides a stoichiometric exhaust gas recovery turbine system. The stoichiometric exhaust gas recovery turbine system may include a main compressor for compressing a flow of ambient air, a turbine, and a stoichiometric exhaust gas recovery combustor. The stoichiometric exhaust gas recovery combustor may include a combustion liner, an extended flow sleeve in communication with the main compressor, and an extraction port in communication with the turbine. The extended flow sleeve receives the flow of ambient air from the main compressor so as to cool the combustion liner and then the flow of ambient air splits into an extraction flow to the turbine via the extraction port and a combustion flow within the combustion liner.Type: GrantFiled: April 15, 2011Date of Patent: December 16, 2014Assignee: General Electric CompanyInventors: Gilbert Otto Kraemer, Sam David Draper, Kyle Wilson Moore
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Patent number: 8397482Abstract: A power generation system capable of eliminating NOx components in the exhaust gas by using a 3-way catalyst, comprising a gas compressor to increase the pressure of ambient air fed to the system; a combustor capable of oxidizing a mixture of fuel and compressed air to generate an expanded, high temperature exhaust gas; a gas turbine engine that uses the force of the high temperature gas; an exhaust gas recycle (EGR) stream back to the combustor; a 3-way catalytic reactor downstream of the gas turbine engine outlet which treats the exhaust gas stream to remove substantially all of the NOx components; a heat recovery steam generator (HRSG); an EGR compressor; and an electrical generator.Type: GrantFiled: May 15, 2008Date of Patent: March 19, 2013Assignee: General Electric CompanyInventors: Gilbert Otto Kraemer, Ashok Kumar Anand, James Anthony West, Hasan Ul Karim, Sam David Draper, Jonathan Dwight Berry
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Publication number: 20120260660Abstract: The present application provides a stoichiometric exhaust gas recovery turbine system. The stoichiometric exhaust gas recovery turbine system may include a main compressor for compressing a flow of ambient air, a turbine, and a stoichiometric exhaust gas recovery combustor. The stoichiometric exhaust gas recovery combustor may include a combustion liner, an extended flow sleeve in communication with the main compressor, and an extraction port in communication with the turbine. The extended flow sleeve receives the flow of ambient air from the main compressor so as to cool the combustion liner and then the flow of ambient air splits into an extraction flow to the turbine via the extraction port and a combustion flow within the combustion liner.Type: ApplicationFiled: April 15, 2011Publication date: October 18, 2012Applicant: GENERAL ELECTRIC COMPANYInventors: Gilbert Otto Kraemer, Sam David Draper, Kyle Wilson Moore
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Patent number: 8177886Abstract: A method of continuously removing nitrogen from a blast furnace exhaust stream containing oxygen, nitrogen and unburned hydrocarbons in order to form a supplemental feed to a gas turbine engine containing residual hydrocarbon fuel by first removing entrained solid particulates in the blast furnace exhaust stream to create a substantially particulate-free gas, passing the particulate-free stream through at least one separator bed containing an adsorptive material capable of adsorbing nitrogen from air, adsorbing substantially all of the nitrogen as interstitial nitrogen on solids within the separator bed, feeding non-adsorbed hydrocarbon fuel and oxygen components leaving the separator to a gas turbine engine and removing the adsorbed nitrogen from the separator bed.Type: GrantFiled: May 7, 2009Date of Patent: May 15, 2012Assignee: General Electric CompanyInventors: Sam David Draper, Shahryar Rabiei
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Publication number: 20120098276Abstract: A power generation system capable of eliminating NO components in the exhaust gas by using a 3-way catalyst, comprising a gas compressor to increase the pressure of ambient air fed to the system; a combustor capable of oxidizing a mixture of fuel and compressed air to generate an expanded, high temperature exhaust gas; a turbine that uses the force of the high temperature gas; an exhaust gas recycle (EGR) stream back to the combustor; a 3-way catalytic reactor downstream of the gas turbine engine outlet which treats the exhaust gas stream to remove substantially all of the NOx components; a heat recovery steam generator (HRSG); an EGR compressor feeding gas to the combustor and turbine; and an electrical generator.Type: ApplicationFiled: December 21, 2011Publication date: April 26, 2012Applicant: General Electric CompanyInventors: Gilbert Otto Kraemer, Ashok Kumar Anand, James Anthony West, Hasan Ui Karim, Sam David Draper, Jonathan Dwight Berry
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Publication number: 20110078948Abstract: A method and system for treating coal with hydrogen fluoride to remove fly ash and thereafter regenerating substantially all of the hydrogen fluoride used during the process (thereby significantly reducing the amount of HF on site). An exemplary method includes the steps of charging at least one reaction vessel with coal containing fly ash; feeding hydrogen fluoride into the reaction vessel to form a first reaction mixture of soluble reaction products, insoluble fluoride compounds and initially clean coal; separating out the first soluble and insoluble reaction products; feeding nitric acid into the same reaction vessel to react with any remaining fly ash components and separating out those second reaction products; and regenerating substantially all of the hydrogen fluoride used in the first fluoride reaction.Type: ApplicationFiled: October 1, 2009Publication date: April 7, 2011Inventors: Chandrashekhar Ganpatrao Sonwane, Sam David Draper, Eric Stephen Kaufman, Michael David Newkirk
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Publication number: 20100287948Abstract: Control of gas turbine speed and acceleration during unloaded rotation may limit stresses on components and facilitate timely operational performance. Operation of a torque converter driving a gas turbine shaft from a starter motor provides control over acceleration and speed of the gas turbine shaft. Hydraulic coupling between the input and output of the torque converter is adjusted by draining and refilling the working fluid in a body of the torque converter to control acceleration and speed of the rotor shaft during a first speed range. Vane positioning within the torque converter may be alternated between discrete speed settings to control acceleration and speed of the rotor shaft during a second speed range. A turbine control system with an acceleration schedule may provide control signals for these functions.Type: ApplicationFiled: May 10, 2010Publication date: November 18, 2010Inventors: Sam David Draper, Douglas Edward Dean, Alan Meier Truesdale, Joseph Michael Harvey
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Publication number: 20100287944Abstract: Maintenance operations for a hot gas path of a gas turbine require shutdown and cooled down conditions. When a gas turbine is shut down, thermal gradients in the rotor cause stresses that limit the life of the major components. As the cooling rate is increased to reduce the time, the stresses are increased, reducing rotor life. A method and equipment are provided to reduce the overall cycle time for the maintenance, yet mitigate the life penalties, thereby providing greater power production while maintaining (or potentially extending) rotor life. The method includes small hold times during the turbine shutdown and startup and slower turbine ramp rates during cooldown and startup, which more than offset thermal stresses from a forced cooldown, considerably shortening the overall operation.Type: ApplicationFiled: April 26, 2010Publication date: November 18, 2010Inventors: Sam David Draper, David August Snider, Robert Thomas Thatcher
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Publication number: 20100282078Abstract: A method of continuously removing nitrogen from a blast furnace exhaust stream containing oxygen, nitrogen and unburned hydrocarbons in order to form a supplemental feed to a gas turbine engine containing residual hydrocarbon fuel by first removing entrained solid particulates in the blast furnace exhaust stream to create a substantially particulate-free gas, passing the particulate-free stream through at least one separator bed containing an adsorptive material capable of adsorbing nitrogen from air, adsorbing substantially all of the nitrogen as interstitial nitrogen on solids within the separator bed, feeding non-adsorbed hydrocarbon fuel and oxygen components leaving the separator to a gas turbine engine and removing the adsorbed nitrogen from the separator bed.Type: ApplicationFiled: May 7, 2009Publication date: November 11, 2010Inventors: Sam David Draper, Shahryar Rabiei
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Publication number: 20090284013Abstract: A power generation system capable of eliminating NO, components in the exhaust gas by using a 3-way catalyst, comprising a gas compressor to increase the pressure of ambient air fed to the system; a combustor capable of oxidizing a mixture of fuel and compressed air to generate an expanded, high temperature exhaust gas; a gas turbine engine that uses the force of the high temperature gas; an exhaust gas recycle (EGR) stream back to the combustor; a 3-way catalytic reactor downstream of the gas turbine engine outlet which treats the exhaust gas stream to remove substantially all of the NOx components; a heat recovery steam generator (HRSG); an EGR compressor; and an electrical generator.Type: ApplicationFiled: May 15, 2008Publication date: November 19, 2009Applicant: General Electric CompanyInventors: Ashok Kumar Anand, James Anthony West, Gilbert Otto Kraemer, Hasan Ul Karim, Sam David Draper, Jonathan Dwight Berry