Patents by Inventor Nagayoshi Hiromitsu
Nagayoshi Hiromitsu 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: 11939923Abstract: Provided is a liquid fuel injection body capable of further reducing a film thickness of an injected liquid fuel.Type: GrantFiled: December 28, 2020Date of Patent: March 26, 2024Assignee: IHI CORPORATIONInventor: Nagayoshi Hiromitsu
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Patent number: 11873761Abstract: A liquid fuel injector includes a cylindrical primary fuel injecting body having a central axis; an annular shroud concentrically placed radially outside; and an annular secondary fuel injecting body placed concentrically with the primary fuel injecting body and the shroud between the primary fuel injecting body and the shroud. A plurality of inner swirlers placed at equal intervals in a circumferential direction are provided in an annular inner air passage formed between the primary fuel injecting body and the secondary fuel injecting body, and a plurality of outer swirlers placed at equal intervals in the circumferential direction are provided in an annular outer air passage formed between the secondary fuel injecting body and the shroud. The primary fuel injecting body is formed as a pressure spray-type injector, and the secondary fuel injecting body and the inner and outer air passages cooperatively constitute an airblast-type injector.Type: GrantFiled: December 29, 2021Date of Patent: January 16, 2024Assignee: IHI CORPORATIONInventors: Takehiko Watase, Kouta Kanai, Nagayoshi Hiromitsu, Junya Kowa, Shinichiro Ishizaki, Katsuyoshi Takahashi, Tomohiro Ide, Shonosuke Kita, Mitsunori Itoh, Yuki Iwaki, Narumi Ando, Hitoshi Hattori, Kazuo Yonekura
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Patent number: 11649963Abstract: A liquid fuel injector includes a cylindrical center body including a center axis, an annular shroud concentrically disposed outside the center body, an annular fuel injection body disposed between and concentrically with the center body and the shroud, and including a fuel passage formed therein, a plurality of inner swirl vanes that are arranged in an equal cycle in an inner air passage between the center body and the fuel injection body, and are provided with an inner swirl vane action surface on an upstream side, a plurality of outer swirl vanes that are arranged in an equal cycle in an outer air passage between the fuel injection body and the shroud, and an outer swirl vane action surface on the upstream side.Type: GrantFiled: October 8, 2020Date of Patent: May 16, 2023Assignee: IHI CORPORATIONInventors: Nagayoshi Hiromitsu, Kouta Kanai
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Publication number: 20220120222Abstract: A liquid fuel injector includes a cylindrical primary fuel injecting body having a central axis; an annular shroud concentrically placed radially outside; and an annular secondary fuel injecting body placed concentrically with the primary fuel injecting body and the shroud between the primary fuel injecting body and the shroud. A plurality of inner swirlers placed at equal intervals in a circumferential direction are provided in an annular inner air passage formed between the primary fuel injecting body and the secondary fuel injecting body, and a plurality of outer swirlers placed at equal intervals in the circumferential direction are provided in an annular outer air passage formed between the secondary fuel injecting body and the shroud. The primary fuel injecting body is formed as a pressure spray-type injector, and the secondary fuel injecting body and the inner and outer air passages cooperatively constitute an airblast-type injector.Type: ApplicationFiled: December 29, 2021Publication date: April 21, 2022Applicant: IHI CORPORATIONInventors: Takehiko WATASE, Kouta KANAI, Nagayoshi HIROMITSU, Junya KOWA, Shinichiro ISHIZAKI, Katsuyoshi TAKAHASHI, Tomohiro IDE, Shonosuke KITA, Mitsunori ITOH, Yuki IWAKI, Narumi ANDO, Hitoshi HATTORI, Kazuo YONEKURA
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Publication number: 20210115856Abstract: Provided is a liquid fuel injection body capable of further reducing a film thickness of an injected liquid fuel.Type: ApplicationFiled: December 28, 2020Publication date: April 22, 2021Applicant: IHI CORPORATIONInventor: Nagayoshi HIROMITSU
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Publication number: 20210025594Abstract: A liquid fuel injector includes a cylindrical center body including a center axis, an annular shroud concentrically disposed outside the center body, an annular fuel injection body disposed between and concentrically with the center body and the shroud, and including a fuel passage formed therein, a plurality of inner swirl vanes that are arranged in an equal cycle in an inner air passage between the center body and the fuel injection body, and are provided with an inner swirl vane action surface on an upstream side, a plurality of outer swirl vanes that are arranged in an equal cycle in an outer air passage between the fuel injection body and the shroud, and an outer swirl vane action surface on the upstream side.Type: ApplicationFiled: October 8, 2020Publication date: January 28, 2021Applicant: IHI CORPORATIONInventors: Nagayoshi HIROMITSU, Kouta KANAI
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Patent number: 10655860Abstract: A thrust increasing device includes: a fuel injector that ejects fuel toward a jet flow; an ignition device that is disposed downstream from the fuel injector; a cylindrical duct that surrounds a combustion region; a flame holder that is disposed in the duct; and a swirling flow generating part that maintains an axial flow of the jet flow in an axial direction of the duct in an outer region of the duct in a radial direction inside the duct and that converts the jet flow to a swirling flow centered on an axis of the duct in an inner region of the duct in the radial direction inside the duct.Type: GrantFiled: October 7, 2016Date of Patent: May 19, 2020Assignee: IHI CorporationInventors: Shinji Tanaka, Jun Hosoi, Katsuyoshi Takahashi, Nagayoshi Hiromitsu
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Patent number: 10551067Abstract: The invention is a combustor liner (12) of a dual wall cooling structure including an inner wall section (30) configured to surround a combustion region (13) and in which a plurality of effusion cooling holes (31) are formed, and an outer wall section (20) formed to be spaced apart from the inner wall section (30) and in which a plurality of impingement cooling holes (21) are formed, wherein the inner wall section (30) is constituted by a plurality of plate-shaped members (40), and a support guide member (50) is provided which is configured to guide the plurality of plate-shaped members (40) to enable free insertion and extraction and support the plurality of plate-shaped members (40) at intervals such that deformation by thermal expansion is able to be absorbed.Type: GrantFiled: August 9, 2017Date of Patent: February 4, 2020Assignee: IHI CORPORATIONInventors: Yoji Okita, Chiyuki Nakamata, Yuuta Matsumoto, Jun Hosoi, Nagayoshi Hiromitsu
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Publication number: 20170370586Abstract: The invention is a combustor liner (12) of a dual wall cooling structure including an inner wall section (30) configured to surround a combustion region (13) and in which a plurality of effusion cooling holes (31) are formed, and an outer wall section (20) formed to be spaced apart from the inner wall section (30) and in which a plurality of impingement cooling holes (21) are formed, wherein the inner wall section (30) is constituted by a plurality of plate-shaped members (40), and a support guide member (50) is provided which is configured to guide the plurality of plate-shaped members (40) to enable free insertion and extraction and support the plurality of plate-shaped members (40) at intervals such that deformation by thermal expansion is able to be absorbed.Type: ApplicationFiled: August 9, 2017Publication date: December 28, 2017Inventors: Yoji OKITA, Chiyuki NAKAMATA, Yuuta MATSUMOTO, Jun HOSOI, Nagayoshi HIROMITSU
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Publication number: 20170023252Abstract: A thrust increasing device includes: a fuel injector that ejects fuel toward a jet flow; an ignition device that is disposed downstream from the fuel injector; a cylindrical duct that surrounds a combustion region; a flame holder that is disposed in the duct; and a swirling flow generating part that maintains an axial flow of the jet flow in an axial direction of the duct in an outer region of the duct in a radial direction inside the duct and that converts the jet flow to a swirling flow centered on an axis of the duct in an inner region of the duct in the radial direction inside the duct.Type: ApplicationFiled: October 7, 2016Publication date: January 26, 2017Applicant: IHI CorporationInventors: Shinji Tanaka, Jun Hosoi, Katsuyoshi Takahashi, Nagayoshi Hiromitsu
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Publication number: 20140238031Abstract: The invention is a combustor liner (12) of a dual wall cooling structure including an inner wall section (30) configured to surround a combustion region (13) and in which a plurality of effusion cooling holes (31) are formed, and an outer wall section (20) formed to be spaced apart from the inner wall section (30) and in which a plurality of impingement cooling holes (21) are formed, wherein the inner wall section (30) is constituted by a plurality of plate-shaped members (40), and a support guide member (50) is provided which is configured to guide the plurality of plate-shaped members (40) to enable free insertion and extraction and support the plurality of plate-shaped members (40) at intervals such that deformation by thermal expansion is able to be absorbed.Type: ApplicationFiled: May 6, 2014Publication date: August 28, 2014Applicant: IHI CorporationInventors: Yoji OKITA, Chiyuki NAKAMATA, Yuuta MATSUMOTO, Jun HOSOI, Nagayoshi HIROMITSU
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Publication number: 20140020393Abstract: A combustor for gas turbine engine, wherein: a plurality of impingement-cooling holes are opened passing through an external wall of a liner for cooling air to blow out towards the outer surface of an internal wall of the liner; a plurality of pin-fins are formed on the outer surface of the internal wall of the liner; a plurality of effusion cooling holes are opened passing through the internal wall of the liner for cooling air to blow out along the inner surface of the internal wall of the liner. The top surface of each pin-fin is not in contact with the inner surface of the external wall of the liner and the ratio of the height of the pin-fin to the equivalent diameter of the impingement-cooling hole is set to be 1.0-3.0.Type: ApplicationFiled: September 27, 2013Publication date: January 23, 2014Applicant: IHI CorporationInventors: Chiyuki NAKAMATA, Yoji Okita, Jun Hosoi, Nagayoshi Hiromitsu, Atsushi Hirata, Takeomi Ideta
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Patent number: 7913494Abstract: A burner 1 for combustion chamber is provided with a cylindrical mixing portion 3 that mixes air for combustion (oxidizing agent) and fuel in the interior thereof and has one end 3a that opens to a combustion portion 2; a spray nozzle (fuel spraying portion) 5 that sprays fuel in the mixing portion 3, being disposed on another end 3b of the mixing portion 3; first blowing ports 6 that introduce the air for combustion to the mixing portion 3 to form a swirling flow with the fuel, being disposed to open to the inner wall of the mixing portion 3; and second blowing ports 7 that additionally introduce the air for combustion to the mixing portion 3, opening in a direction different from the first blowing ports 6 and being disposed further to the other end 3b side of the mixing portion 3 than the swirling flow.Type: GrantFiled: March 8, 2007Date of Patent: March 29, 2011Assignee: Ishikawajima-Harima Heavy Industries Co., Ltd.Inventors: Nagayoshi Hiromitsu, Jun Hosoi, Atsushi Fujii, Tsukasa Saitou, Dirk Riechelmann, Junichi Sato
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Publication number: 20090031729Abstract: A fuel injection valve is provided with a cylindrical injection valve main body in which one end is closed, and a fuel nozzle arranged on a center line of the main body and injecting a fuel. The main body has a plurality of air injection ports for injecting an air to an inner side in a tangential direction and forming a whirl flow in an inner portion in a circumferential direction of a cylinder portion of the main body, and the fuel nozzle has a fuel injection port injecting the fuel toward an inner peripheral surface of the main body.Type: ApplicationFiled: February 25, 2005Publication date: February 5, 2009Applicant: IHI CORPORATIONInventors: Jun Hosoi, Nagayoshi Hiromitsu, Tomoaki Yoshida
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Publication number: 20070224562Abstract: A burner 1 for combustion chamber is provided with a cylindrical mixing portion 3 that mixes air for combustion (oxidizing agent) and fuel in the interior thereof and has one end 3a that opens to a combustion portion 2; a spray nozzle (fuel spraying portion) 5 that sprays fuel in the mixing portion 3, being disposed on another end 3b of the mixing portion 3; first blowing ports 6 that introduce the air for combustion to the mixing portion 3 to form a swirling flow with the fuel, being disposed to open to the inner wall of the mixing portion 3; and second blowing ports 7 that additionally introduce the air for combustion to the mixing portion 3, opening in a direction different from the first blowing ports 6 and being disposed further to the other end 3b side of the mixing portion 3 than the swirling flow.Type: ApplicationFiled: March 8, 2007Publication date: September 27, 2007Inventors: Nagayoshi HIROMITSU, Jun HOSOI, Atsushi FUJII, Tsukasa SAITOU, Dirk RIECHELMANN, Junichi SATO