Patents by Inventor Takayoshi Takashima
Takayoshi Takashima 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: 10197284Abstract: A gas turbine combustor is provided with a combustor basket where combustion gas flows, the combustion gas being produced by combustion of fuel injected from a nozzle, and a first resonance device and a second resonance device mounted on an outer surface of the combustor basket. The second resonance device is disposed on a downstream side from the first resonance device in a flow of the combustion gas and damps combustion oscillation of a frequency higher than the first resonance device. The first and second resonance devices are acoustic liners each having a housing mounted to the outer surface of the combustor basket. A resonance space surrounded by the housing and the outer surface of the combustor basket communicates with an interior space of the combustor basket via a plurality of acoustic holes formed in the combustor basket.Type: GrantFiled: December 19, 2014Date of Patent: February 5, 2019Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Shinji Akamatsu, Hiroaki Kishida, Kenji Sato, Kentaro Tokuyama, Keisuke Matsuyama, Takayoshi Takashima
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Patent number: 9400111Abstract: A gas turbine combustor is disposed in a casing interior space of a gas turbine. A combustor basket of the combustor is formed into a cylindrical shape by abutting ends of a curved panel member and welding the ends together along a welding line 16. A communication tube is provided for communication between an interior space of the combustor basket and an interior space of a combustor basket of an adjacent combustor. The position of the welding line of the combustor basket coincides with a connection position for connecting the communication tube to the combustor basket. A cooling air hole is disposed in the communication tube or in the combustor basket in the vicinity of the communication tube to introduce cooling air from the casing interior space 9 to the interior of the combustor basket.Type: GrantFiled: January 17, 2014Date of Patent: July 26, 2016Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Hiroaki Kishida, Kentaro Tokuyama, Takayoshi Takashima
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Publication number: 20150204543Abstract: A gas turbine combustor is disposed in a casing interior space of a gas turbine. A combustor basket of the combustor is formed into a cylindrical shape by abutting ends of a curved panel member and welding the ends together along a welding line 16. A communication tube is provided for communication between an interior space of the combustor basket and an interior space of a combustor basket of an adjacent combustor. The position of the welding line of the combustor basket coincides with a connection position for connecting the communication tube to the combustor basket. A cooling air hole is disposed in the communication tube or in the combustor basket in the vicinity of the communication tube to introduce cooling air from the casing interior space 9 to the interior of the combustor basket.Type: ApplicationFiled: January 17, 2014Publication date: July 23, 2015Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Hiroaki KISHIDA, Kentaro TOKUYAMA, Takayoshi TAKASHIMA
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Publication number: 20150101343Abstract: A gas turbine combustor is provided with a combustor basket where combustion gas flows, the combustion gas being produced by combustion of fuel injected from a nozzle, and a first resonance device and a second resonance device mounted on an outer surface of the combustor basket. The second resonance device is disposed on a downstream side from the first resonance device in a flow of the combustion gas and damps combustion oscillation of a frequency higher than the first resonance device. The first and second resonance devices are acoustic liners each having a housing mounted to the outer surface of the combustor basket. A resonance space surrounded by the housing and the outer surface of the combustor basket communicates with an interior space of the combustor basket via a plurality of acoustic holes formed in the combustor basket.Type: ApplicationFiled: December 19, 2014Publication date: April 16, 2015Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Shinji Akamatsu, Hiroaki Kishida, Kenji Sato, Kentaro Tokuyama, Keisuke Matsuyama, Takayoshi Takashima
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Patent number: 9003800Abstract: A gas turbine combustor is provided with a combustor basket where combustion gas flows, the combustion gas being produced by combustion of fuel injected from a nozzle, and a first resonance device and a second resonance device mounted on an outer surface of the combustor basket. The second resonance device is disposed on a downstream side from the first resonance device in a flow of the combustion gas and damps combustion oscillation of a frequency higher than the first resonance device. The first and second resonance devices are acoustic liners each having a housing mounted to the outer surface of the combustor basket. A resonance space surrounded by the housing and the outer surface of the combustor basket communicates with an interior space of the combustor basket via a plurality of acoustic holes formed in the combustor basket.Type: GrantFiled: July 2, 2012Date of Patent: April 14, 2015Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Shinji Akamatsu, Hiroaki Kishida, Kenji Sato, Kentaro Tokuyama, Keisuke Matsuyama, Takayoshi Takashima
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Patent number: 8959919Abstract: A gas turbine combustor is provided with a combustor basket where combustion gas flows, the combustion gas being produced by combustion of fuel injected from a nozzle, and a first resonance device and a second resonance device mounted on an outer surface of the combustor basket. The second resonance device is disposed on a downstream side from the first resonance device in a flow of the combustion gas and damps combustion oscillation of a frequency higher than the first resonance device. The first and second resonance devices are acoustic liners each having a housing mounted to the outer surface of the combustor basket. A resonance space surrounded by the housing and the outer surface of the combustor basket communicates with an interior space of the combustor basket via a plurality of acoustic holes formed in the combustor basket.Type: GrantFiled: July 2, 2012Date of Patent: February 24, 2015Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Shinji Akamatsu, Hiroaki Kishida, Kenji Sato, Kentaro Tokuyama, Keisuke Matsuyama, Takayoshi Takashima
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Publication number: 20130008167Abstract: A gas turbine combustor is provided with a combustor basket where combustion gas flows, the combustion gas being produced by combustion of fuel injected from a nozzle, and a first resonance device and a second resonance device mounted on an outer surface of the combustor basket. The second resonance device is disposed on a downstream side from the first resonance device in a flow of the combustion gas and damps combustion oscillation of a frequency higher than the first resonance device. The first and second resonance devices are acoustic liners each having a housing mounted to the outer surface of the combustor basket. A resonance space surrounded by the housing and the outer surface of the combustor basket communicates with an interior space of the combustor basket via a plurality of acoustic holes formed in the combustor basket.Type: ApplicationFiled: July 2, 2012Publication date: January 10, 2013Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Shinji Akamatsu, Hiroaki Kishida, Kenji Sato, Kentaro Tokuyama, Keisuke Matsuyama, Takayoshi Takashima