Patents by Inventor Scott Cloyd
Scott Cloyd 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: 11268409Abstract: A power plant system can comprise a first gas turbine having a first efficiency to produce a first exhaust flow, a first electrical generator driven by the first gas turbine, a first heat recovery steam generator to receive the first exhaust flow and generate a first steam flow, a second gas turbine having a second efficiency less than the first efficiency to produce a second exhaust flow, a second electrical generator driven by the second gas turbine, and an exhaust gas conditioning device to reduce temperature of the second exhaust flow, a steam turbine driving a steam electrical generator to receive the first steam flow. The second gas turbine can be selectively operated to generate electricity with the second electrical generator under peak loading conditions when a sum of output from the steam electrical generator and the first electrical generator are less than an electrical demand from a grid.Type: GrantFiled: November 7, 2018Date of Patent: March 8, 2022Assignees: Mitsubishi Power Americas, Inc., Mitsubishi Power, Ltd.Inventors: Scott Cloyd, Jiro Asakuno, Toshihiko Toyota, Masaru Takamatsu, Michael Ducker, David Hunt
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Patent number: 11053849Abstract: A method of reducing applied heat within an inlet duct of a gas turbine generating electricity includes applying heat to the inlet duct of the gas turbine to attain an initial temperature set point and to produce conditions sufficient for preventing formation of ice within the inlet duct, measuring a position of an inlet guide vane (IGV) of the gas turbine, an inlet duct temperature, and an inlet duct relative humidity to determine a thermodynamic state in the inlet duct, evaluating the thermodynamic state to determine if the conditions are sufficient for preventing formation of ice within the inlet duct, and in response to determining that sufficient conditions exist within the inlet duct for preventing formation of ice, adjusting the applied heat to maintain the measured inlet duct temperature.Type: GrantFiled: August 23, 2019Date of Patent: July 6, 2021Assignee: Mitsubishi Power Americas, Inc.Inventors: Lisa Batsch-Smith, Stephen Bramham, Scott Cloyd, Beth Hays, Angel Hernandez
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Publication number: 20210054786Abstract: A method of reducing applied heat within an inlet duct of a gas turbine generating electricity includes applying heat to the inlet duct of the gas turbine to attain an initial temperature set point and to produce conditions sufficient for preventing formation of ice within the inlet duct, measuring a position of an inlet guide vane (IGV) of the gas turbine, an inlet duct temperature, and an inlet duct relative humidity to determine a thermodynamic state in the inlet duct, evaluating the thermodynamic state to determine if the conditions are sufficient for preventing formation of ice within the inlet duct, and in response to determining that sufficient conditions exist within the inlet duct for preventing formation of ice, adjusting the applied heat to maintain the measured inlet duct temperature.Type: ApplicationFiled: August 23, 2019Publication date: February 25, 2021Inventors: Lisa Batsch-Smith, Stephen Bramham, Scott Cloyd, Beth Hays, Angel Hernandez
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Publication number: 20200263569Abstract: A power plant system can comprise a first gas turbine having a first efficiency to produce a first exhaust flow, a first electrical generator driven by the first gas turbine, a first heat recovery steam generator to receive the first exhaust flow and generate a first steam flow, a second gas turbine having a second efficiency less than the first efficiency to produce a second exhaust flow, a second electrical generator driven by the second gas turbine, and an exhaust gas conditioning device to reduce temperature of the second exhaust flow, a steam turbine driving a steam electrical generator to receive the first steam flow. The second gas turbine can be selectively operated to generate electricity with the second electrical generator under peak loading conditions when a sum of output from the steam electrical generator and the first electrical generator are less than an electrical demand from a grid.Type: ApplicationFiled: November 7, 2018Publication date: August 20, 2020Inventors: Scott Cloyd, Jiro Asakuno, Toshihiko Toyota, Masaru Takamatsu, Michael Ducker, David Hunt
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Patent number: 10371006Abstract: An exhaust-side journal bearing for supporting a gas turbine rotor is disposed inside a bearing box. The bearing box is supported by a strut which extends inward from an exhaust casing, and a seal ring having an annular inner peripheral end is disposed on the bearing box. Executed during a maintenance work are: a bearing adjustment step of displacing a bearing surface of the journal bearing relative to the bearing box in a perpendicular direction perpendicular to the axial direction; and a seal ring adjustment step of displacing the inner peripheral end of the seal ring relative to the bearing box in accordance with the direction of displacement and the amount of displacement of the bearing surface.Type: GrantFiled: November 19, 2014Date of Patent: August 6, 2019Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Kohei Hidaka, Susumu Wakazono, Toshihiro Takeda, Scott Cloyd, Santo Scimeca
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Patent number: 9915428Abstract: A cylinder of a combustor includes a cylinder body inside of which combustion gas flows, a jacket plate that covers the cylinder body from the outside and forms a fluid space into which high-pressure fluid flows between an inner peripheral surface of the jacket plate and an outer peripheral surface of the cylinder body, and a rib that connects the cylinder body and the jacket plate. The rib is connected to the cylinder body by a cylinder side end portion on the cylinder body side in a radial direction with respect to an axis of the cylinder body being welded from both sides in an axial direction of the axis. The rib is connected to the jacket plate by a jacket side end portion on the jacket plate side in the radial direction being welded from both sides in the axial direction.Type: GrantFiled: August 20, 2014Date of Patent: March 13, 2018Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Hiroaki Kishida, Kentaro Tokuyama, Yuta Hitomi, Hiroyuki Sakaki, Kotaro Miyauchi, Kohei Hidaka, Susumu Wakazono, Scott Cloyd, Bob Provitola, Brandon Ruiz
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Publication number: 20170241289Abstract: An exhaust-side journal bearing for supporting a gas turbine rotor is disposed inside a bearing box. The bearing box is supported by a strut which extends inward from an exhaust casing, and a seal ring having an annular inner peripheral end is disposed on the bearing box. Executed during a maintenance work are: a bearing adjustment step of displacing a bearing surface of the journal bearing relative to the bearing box in a perpendicular direction perpendicular to the axial direction; and a seal ring adjustment step of displacing the inner peripheral end of the seal ring relative to the bearing box in accordance with the direction of displacement and the amount of displacement of the bearing surface.Type: ApplicationFiled: November 19, 2014Publication date: August 24, 2017Inventors: Kohei HIDAKA, Susumu WAKAZONO, Toshihiro TAKEDA, Scott CLOYD, Santo SCIMECA
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Publication number: 20160053998Abstract: A cylinder of a combustor includes a cylinder body inside of which combustion gas flows, a jacket plate that covers the cylinder body from the outside and forms a fluid space into which high-pressure fluid flows between an inner peripheral surface of the jacket plate and an outer peripheral surface of the cylinder body, and a rib that connects the cylinder body and the jacket plate. The rib is connected to the cylinder body by a cylinder side end portion on the cylinder body side in a radial direction with respect to an axis of the cylinder body being welded from both sides in an axial direction of the axis. The rib is connected to the jacket plate by a jacket side end portion on the jacket plate side in the radial direction being welded from both sides in the axial direction.Type: ApplicationFiled: August 20, 2014Publication date: February 25, 2016Applicant: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Hiroaki Kishida, Kentaro Tokuyama, Yuta Hitomi, Hiroyuki Sakaki, Kotaro Miyauchi, Kohei Hidaka, Susumu Wakazono, Scott Cloyd, Bob Provitola, Brandon Ruiz