Patents by Inventor Yuya Fukunaga
Yuya Fukunaga 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: 11913341Abstract: In a clearance control system for a gas turbine, a control device operates an adjustment device such that a first flow rate is greater than a second flow rate when a load stable state is entered in which a fluctuation range of a load shifts within a preset range, and operates the adjustment device such that the second flow rate is greater than the first flow rate when a load fluctuation state is entered in which the load falls outside the range.Type: GrantFiled: September 7, 2021Date of Patent: February 27, 2024Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Yuya Fukunaga, Susumu Wakazono, Satoshi Hada
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Publication number: 20230296030Abstract: In a clearance control system for a gas turbine, a control device operates an adjustment device such that a first flow rate is greater than a second flow rate when a load stable state is entered in which a fluctuation range of a load shifts within a preset range, and operates the adjustment device such that the second flow rate is greater than the first flow rate when a load fluctuation state is entered in which the load falls outside the range.Type: ApplicationFiled: September 7, 2021Publication date: September 21, 2023Inventors: Yuya FUKUNAGA, Susumu WAKAZONO, Satoshi HADA
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Patent number: 10634058Abstract: A cooling system includes: a high pressure bleed line configured to bleed high pressure compressed air from a first bleed position of a compressor and to send the air to a first hot part; a low pressure bleed line configured to bleed low pressure compressed air from a second bleed position of the compressor and to send the air to a second hot part; an orifice provided in the low pressure bleed line; a connecting line configured to connect the high pressure bleed line and the low pressure bleed line; a first valve provided in the connecting line; a bypass line configured to connect the connecting line and the low pressure bleed line; and a second valve provided in the bypass line.Type: GrantFiled: January 25, 2016Date of Patent: April 28, 2020Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Yoshifumi Iwasaki, Toshishige Ai, Yuya Fukunaga, Tatsuya Iwasaki
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Patent number: 10309245Abstract: Provided is a gas turbine capable of achieving high-speed startup of the gas turbine through quick operation control of an ACC system during startup of the gas turbine, improving the cooling efficiency of turbine stationary components, and quickly carrying out an operation required for cat back prevention during shutdown of the gas turbine.Type: GrantFiled: September 2, 2015Date of Patent: June 4, 2019Assignees: MITSUBISHI HEAVY INDUSTRIES, LTD., TOHOKU ELECTRIC POWER COMPANY, INC.Inventors: Satoshi Mizukami, Tatsuo Ishiguro, Junichiro Masada, Kazumasa Takata, Yuya Fukunaga, Hiroki Takahashi, Masaki Satoh, Yoshiaki Nishimura, Norio Oogai, Souji Hasegawa, Masato Hayashi
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Patent number: 10247030Abstract: Provided is a gas turbine capable of achieving high-speed startup of the gas turbine through quick operation control of an ACC system during startup of the gas turbine, improving the cooling efficiency of turbine stationary components, and quickly carrying out an operation required for cat back prevention during shutdown of the gas turbine.Type: GrantFiled: September 2, 2015Date of Patent: April 2, 2019Assignees: MITSUBISHI HEAVY INDUSTRIES, LTD., TOHOKU ELECTRIC POWER COMPANY, INC.Inventors: Satoshi Mizukami, Tatsuo Ishiguro, Junichiro Masada, Kazumasa Takata, Yuya Fukunaga, Hiroki Takahashi, Masaki Satoh, Yoshiaki Nishimura, Norio Oogai, Souji Hasegawa, Masato Hayashi
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Patent number: 9951644Abstract: Provided is a gas turbine capable of achieving high-speed startup of the gas turbine through quick operation control of an ACC system during startup of the gas turbine, improving the cooling efficiency of turbine stationary components, and quickly carrying out an operation required for cat back prevention during shutdown of the gas turbine.Type: GrantFiled: September 2, 2015Date of Patent: April 24, 2018Assignees: MITSUBISHI HEAVY INDUSTRIES, LTD., TOHOKU ELECTRIC POWER COMPANY, INC.Inventors: Satoshi Mizukami, Tatsuo Ishiguro, Junichiro Masada, Kazumasa Takata, Yuya Fukunaga, Hiroki Takahashi, Masaki Satoh, Yoshiaki Nishimura, Norio Oogai, Souji Hasegawa, Masato Hayashi
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Publication number: 20180010520Abstract: A cooling system includes: a high pressure bleed line configured to bleed high pressure compressed air from a first bleed position of a compressor and to send the air to a first hot part; a low pressure bleed line configured to bleed low pressure compressed air from a second bleed position of the compressor and to send the air to a second hot part; an orifice provided in the low pressure bleed line; a connecting line configured to connect the high pressure bleed line and the low pressure bleed line; a first valve provided in the connecting line; a bypass line configured to connect the connecting line and the low pressure bleed line; and a second valve provided in the bypass line.Type: ApplicationFiled: January 25, 2016Publication date: January 11, 2018Inventors: Yoshifumi IWASAKI, Toshishige AI, Yuya FUKUNAGA, Tatsuya IWASAKI
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Patent number: 9512781Abstract: In a cooling structure for a recovery-type air-cooled gas turbine combustor having a recovery-type air-cooling structure that bleeds, upstream of the combustor, and pressurizes compressed air supplied from a compressor, that uses the bled and pressurized air to cool a wall, and that recovers and reuses the bled and pressurized air as combustion air for burning fuel in the combustor together with a main flow of the compressed air, wall cooling in which cooling air is supplied to cooling air passages formed in the wall of the combustor to perform cooling involves a downstream wall region, closer to a turbine, that is cooled using the bled and pressurized air as the cooling air and an upstream wall region, closer to a burner, that is cooled using, as the cooling air, bled compressed air bled from a main flow of the compressed air through a housing inner space.Type: GrantFiled: August 10, 2011Date of Patent: December 6, 2016Assignees: MITSUBISHI HITACHI POWER SYSTEMS, LTD., TOHOKU ELECTRIC POWER CO., INC.Inventors: Satoshi Mizukami, Tatsuo Ishiguro, Junichiro Masada, Kazumasa Takata, Shunsuke Torii, Yuya Fukunaga, Tetsu Konishi, Yoshiaki Nishimura, Yoshiaki Igarashi, Shinya Ishikawa
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Patent number: 9255490Abstract: Provided is a gas turbine capable of achieving high-speed startup of the gas turbine through quick operation control of an ACC system during startup of the gas turbine, improving the cooling efficiency of turbine stationary components, and quickly carrying out an operation required for cat back prevention during shutdown of the gas turbine.Type: GrantFiled: September 24, 2009Date of Patent: February 9, 2016Assignees: MITSUBISHI HEAVY INDUSTRIES, LTD., TOHOKU ELECTRIC POWER COMPANY, INC.Inventors: Satoshi Mizukami, Tatsuo Ishiguro, Junichiro Masada, Kazumasa Takata, Yuya Fukunaga, Hiroki Takahashi, Masaki Satoh, Yoshiaki Nishimura, Norio Oogai, Souji Hasegawa, Masato Hayashi
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Publication number: 20150377054Abstract: Provided is a gas turbine capable of achieving high-speed startup of the gas turbine through quick operation control of an ACC system during startup of the gas turbine, improving the cooling efficiency of turbine stationary components, and quickly carrying out an operation required for cat back prevention during shutdown of the gas turbine.Type: ApplicationFiled: September 2, 2015Publication date: December 31, 2015Applicants: MITSUBISHI HEAVY INDUSTRIES, LTD., TOHOKU ELECTRIC POWER COMPANY, INC.Inventors: Satoshi Mizukami, Tatsuo Ishiguro, Junichiro Masada, Kazumasa Takata, Yuya Fukunaga, Hiroki Takahashi, Masaki Satoh, Yoshiaki Nishimura, Norio Oogai, Souji Hasegawa, Masato Hayashi
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Publication number: 20150377055Abstract: Provided is a gas turbine capable of achieving high-speed startup of the gas turbine through quick operation control of an ACC system during startup of the gas turbine, improving the cooling efficiency of turbine stationary components, and quickly carrying out an operation required for cat back prevention during shutdown of the gas turbine.Type: ApplicationFiled: September 2, 2015Publication date: December 31, 2015Applicants: MITSUBISHI HEAVY INDUSTRIES, LTD., TOHOKU ELECTRIC POWER COMPANY, INC.Inventors: Satoshi Mizukami, Tatsuo Ishiguro, Junichiro Masada, Kazumasa Takata, Yuya Fukunaga, Hiroki Takahashi, Masaki Satoh, Yoshiaki Nishimura, Norio Oogai, Souji Hasegawa, Masato Hayashi
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Publication number: 20150377056Abstract: Provided is a gas turbine capable of achieving high-speed startup of the gas turbine through quick operation control of an ACC system during startup of the gas turbine, improving the cooling efficiency of turbine stationary components, and quickly carrying out an operation required for cat back prevention during shutdown of the gas turbine.Type: ApplicationFiled: September 2, 2015Publication date: December 31, 2015Applicants: MITSUBISHI HEAVY INDUSTRIES, LTD., TOHOKU ELECTRIC POWER COMPANY, INC.Inventors: Satoshi Mizukami, Tatsuo Ishiguro, Junichiro Masada, Kazumasa Takata, Yuya Fukunaga, Hiroki Takahashi, Masaki Satoh, Yoshiaki Nishimura, Norio Oogai, Souji Hasegawa, Masato Hayashi
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Publication number: 20130098063Abstract: In a cooling structure for a recovery-type air-cooled gas turbine combustor having a recovery-type air-cooling structure that bleeds, upstream of the combustor, and pressurizes compressed air supplied from a compressor, that uses the bled and pressurized air to cool a wall, and that recovers and reuses the bled and pressurized air as combustion air for burning fuel in the combustor together with a main flow of the compressed air, wall cooling in which cooling air is supplied to cooling air passages formed in the wall of the combustor to perform cooling involves a downstream wall region, closer to a turbine, that is cooled using the bled and pressurized air as the cooling air and an upstream wall region, closer to a burner, that is cooled using, as the cooling air, bled compressed air bled from a main flow of the compressed air through a housing inner space.Type: ApplicationFiled: August 10, 2011Publication date: April 25, 2013Applicants: TOHOKU ELECTRIC POWER CO., LTD., MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Satoshi Mizukami, Tatsuo Ishiguro, Junichiro Masada, Kazumasa Takata, Shunsuke Torii, Yuya Fukunaga, Tetsu Konishi, Yoshiaki Nishimura, Yoshiaki Igarashi, Shinya Ishikawa
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Publication number: 20110138818Abstract: Provided is a gas turbine capable of achieving high-speed startup of the gas turbine through quick operation control of an ACC system during startup of the gas turbine, improving the cooling efficiency of turbine stationary components, and quickly carrying out an operation required for cat back prevention during shutdown of the gas turbine.Type: ApplicationFiled: September 24, 2009Publication date: June 16, 2011Applicants: MITSUBISHI HEAVY INDUSTRIES, LTD., TOHOKU ELECTRIC POWER COMPANY, INC.Inventors: Satoshi Mizukami, Tatsuo Ishiguro, Junichiro Masada, Kazumasa Takata, Yuya Fukunaga, Hiroki Takahashi, Masaki Satoh, Yoshiaki Nishimura, Norio Oogai, Souji Hasegawa, Masato Hayashi