Patents by Inventor Taiki Kinoshita
Taiki Kinoshita 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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Publication number: 20240084736Abstract: A sealing member that forms a combustion gas flow path of a gas turbine includes a first body portion having a cooling passage. The first body portion includes a first end portion forming one end portion in a circumferential direction, a second end portion forming the other end portion on an opposite side in the circumferential direction, and an intermediate portion formed between the first and second end portions. The cooling passage includes an intermediate portion cooling passage inclined at a first angle with respect to an axial direction, a first end portion cooling passage provided in the first end portion and inclined at a second angle with respect to the axial direction, and a second end portion cooling passage provided in the second end portion and inclined at a third angle with respect to the axial direction, and the second and third angles are smaller than the first angle.Type: ApplicationFiled: January 27, 2022Publication date: March 14, 2024Inventors: Taiki KINOSHITA, Kenji SATO, Kentaro TOKUYAMA, Kenta TANIGUCHI, Hiroyuki SAKAKI
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Patent number: 11891957Abstract: This exit seal is for connecting an exit flange of a combustor and a shroud in a stator blade of a turbine. The exit seal is equipped with: a seal body that extends in a circumferential direction; and a lid member disposed at a circumferential end of the seal body. The seal body comprises one or more recessed sections that are recessed in a radial direction or in an axial direction and extend in the circumferential direction. At a position of the circumferential end of at least one recessed section among the one or more recessed sections, the lid member is disposed so as to overlap, in the axial direction and the radial direction, with a recessed space formed by the one recessed section.Type: GrantFiled: February 8, 2021Date of Patent: February 6, 2024Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Kenta Taniguchi, Taiki Kinoshita, Hiroyuki Sakaki, Kentaro Tokuyama
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Publication number: 20240027069Abstract: A combustor for a gas turbine, includes: a first fuel nozzle group and a second fuel nozzle group each of which includes a fuel nozzle capable of supplying a fuel and has an independently controllable fuel supply system; a cylinder inside which a combustion region allowing a combustion gas produced by combustion of the fuel to flow is formed; and a first contraction portion extending partially along a circumferential direction so as to correspond to one of the first fuel nozzle group or the second fuel nozzle group and protruding radially inward from an inner peripheral surface of the cylinder.Type: ApplicationFiled: March 31, 2021Publication date: January 25, 2024Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Shinichi Fukuba, Satoshi Takiguchi, Taiki Kinoshita, Kenta Taniguchi, Sosuke Nakamura, Yoshikazu Matsumura
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Patent number: 11852343Abstract: A combustor component of a combustor for combusting fuel to produce a combustion gas includes a combustion cylinder forming a passage for the combustion gas, a first acoustic device which internally includes a first cavity communicating with the passage via a first through hole formed in the combustion cylinder, a second acoustic device which is located on a radially outer side of the first acoustic device so as to cover the first acoustic device, and internally includes a second cavity communicating with the passage via a second through hole formed in the combustion cylinder, and a first communication passage causing the first cavity and an outer space of the combustion cylinder to communicate with each other without via the first through hole and the second cavity.Type: GrantFiled: December 21, 2020Date of Patent: December 26, 2023Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Shinji Akamatsu, Kenji Sato, Naoki Abe, Taiki Kinoshita, Hiroki Shibata, Norihiko Motoyama
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Publication number: 20230374906Abstract: A high-temperature part of the present disclosure includes: a high-temperature part body which includes a base and a coating layer formed on a part of a surface of the base; and a protective layer which is formed on at least a part of a surface of the coating layer. The protective layer is formed of a material which is allowed to disappear from a surface of the coating layer under an operation environment of a gas turbine.Type: ApplicationFiled: May 15, 2023Publication date: November 23, 2023Inventors: Masahiro WATANABE, Taiki KINOSHITA, Kiyoshi FUJIMOTO, Sosuke NAKAMURA, Norihiko MOTOYAMA, Kenichi HASHIMOTO, Akito KIRA
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Publication number: 20230175439Abstract: This transition piece comprises a pair of side plates which face each other across an axis, a plate inside the curve which, with reference to the axis, is arranged inside the curve where the downstream portion curves relative to the upstream portion on the axis, and a plate outside the curve which, with reference to the axis, is arranged outside the curve on the side opposite of the aforementioned inside the curve. The plate inside the curve, the plate outside the curve and the pair of side plates each has multiple passage groups which are configured from multiple cooling passages that allow flow of a cooling medium and that extend in the axis direction and are arranged side-by-side in the circumferential direction, and one or more headers which allow flow of the cooling medium and which extend in the circumferential direction. The number of the one or more headers of the plate inside the curve is less than the number of the one or more headers in the plate outside the curve and the pair of side plats.Type: ApplicationFiled: July 15, 2021Publication date: June 8, 2023Inventors: Taiki KINOSHITA, Kentaro TOKUYAMA, Kenta TANIGUCHI, Hiroyuki SAKAKI
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Publication number: 20230042434Abstract: This exit seal is for connecting an exit flange of a combustor and a shroud in a stator blade of a turbine. The exit seal is equipped with: a seal body that extends in a circumferential direction; and a lid member disposed at a circumferential end of the seal body. The seal body comprises one or more recessed sections that are recessed in a radial direction or in an axial direction and extend in the circumferential direction. At a position of the circumferential end of at least one recessed section among the one or more recessed sections, the lid member is disposed so as to overlap, in the axial direction and the radial direction, with a recessed space formed by the one recessed section.Type: ApplicationFiled: February 8, 2021Publication date: February 9, 2023Inventors: Kenta TANIGUCHI, Taiki KINOSHITA, Hiroyuki SAKAKI, Kentaro TOKUYAMA
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Patent number: 11536455Abstract: A combustor component according to at least one embodiment of the present invention includes a cylindrical body which internally includes a combustion chamber, and includes a weld part where a plurality of through holes opening to the combustion chamber are formed, and a housing which is disposed on an outer circumferential side of the cylindrical body to cover a part of the weld part, and defines an acoustic damping space communicating with the combustion chamber via at least one of the through holes. The plurality of through holes in the weld part has a formation density which is higher in a first region of the weld part covered with the housing than in a second region of the weld part positioned outside the housing.Type: GrantFiled: November 1, 2019Date of Patent: December 27, 2022Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Kentaro Tokuyama, Hiroaki Kishida, Taiki Kinoshita, Hiroki Shibata, Toshinobu Ohara
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Publication number: 20220373180Abstract: A combustor component of a combustor for combusting fuel to produce a combustion gas includes a combustion cylinder forming a passage for the combustion gas, a first acoustic device which internally includes a first cavity communicating with the passage via a first through hole formed in the combustion cylinder, a second acoustic device which is located on a radially outer side of the first acoustic device so as to cover the first acoustic device, and internally includes a second cavity communicating with the passage via a second through hole formed in the combustion cylinder, and a first communication passage causing the first cavity and an outer space of the combustion cylinder to communicate with each other without via the first through hole and the second cavity.Type: ApplicationFiled: December 21, 2020Publication date: November 24, 2022Inventors: Shinji AKAMATSU, Kenji SATO, Naoki ABE, Taiki KINOSHITA, Hiroki SHIBATA, Norihiko MOTOYAMA
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Publication number: 20220228530Abstract: A tail pipe (50) comprises: a pipe (51); an acoustic attenuator (61) that forms an acoustic space (Ss) on the outer peripheral side of the pipe (51); and a cooling air jacket (65) that forms a cooling air space (Sa) isolated from the outer space (So), which is the space on the outer peripheral side of the pipe (51). The pipe (51) has: a first air flow path (56) that is formed between the outer peripheral surface (55o) and the inner peripheral surface (55i); and an acoustic hole (59) that penetrates from the acoustic space (Ss) to a combustion space (Sc), which is a space on the inner peripheral side of the pipe (51c). The first air flow path (56) has: an inlet (56i) that faces into the cooling air space (Sa) and guides the air in the cooling air space (Sa) into the first air flow path (56); and an outlet (56o) that faces into the acoustic space (Ss) and guides the air passing through the first air flow path (56) into the acoustic space (Ss).Type: ApplicationFiled: March 5, 2020Publication date: July 21, 2022Inventors: Taiki KINOSHITA, Sosuke NAKAMURA, Kotaro MIYAUCHI, Kenji SATO, Kenta TANIGUCHI, Satoshi MIZUKAMI, Yoshinori WAKITA, Shinji AKAMATSU
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Patent number: 11326780Abstract: A resonant sound absorbing device of a gas turbine combustor includes a plurality of resonance chambers independently disposed side by side in an axial direction of the gas turbine combustor so as to communicate with a gas passage of the gas turbine combustor via acoustic holes. The plurality of resonance chambers include n related resonance chambers each satisfying: 0.9 × ? i = 1 n ? F i n ? F i ? 1.1 × ? i = 1 n ? F i n ( A ) where n is an integer of 2 or more, and Fi is a peak frequency corresponding to a maximum sound absorbing ratio of the ith related resonance chamber of the n related resonance chambers.Type: GrantFiled: February 28, 2018Date of Patent: May 10, 2022Assignee: MITSUBISHI POWER, LTD.Inventors: Kiyoshi Fujimoto, Taiki Kinoshita, Satoshi Mizukami, Yoshinori Wakita, Satoshi Takiguchi, Wataru Kugimiya
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Patent number: 11261794Abstract: An acoustic device includes: a perforated plate that has a plurality of holes penetrating in a plate thickness direction of the perforated plate and in which a main flow is to flow on a first side of the perforated plate in the plate thickness direction; and a housing that is on a second side of the perforated plate in the plate thickness direction and partitions a space between the housing and the perforated plate, wherein a part of each of the plurality of holes on the first side in the thickness direction is inclined to at least one of the first side and a second side of a flow direction of the main flow.Type: GrantFiled: March 2, 2017Date of Patent: March 1, 2022Assignee: MITSUBISHI POWER, LTD.Inventors: Keisuke Matsuyama, Shinji Akamatsu, Taiki Kinoshita, Kenta Taniguchi
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Publication number: 20210302017Abstract: A combustor component according to at least one embodiment of the present invention includes a cylindrical body which internally includes a combustion chamber, and includes a weld part where a plurality of through holes opening to the combustion chamber are formed, and a housing which is disposed on an outer circumferential side of the cylindrical body to cover a part of the weld part, and defines an acoustic damping space communicating with the combustion chamber via at least one of the through holes. The plurality of through holes in the weld part has a formation density which is higher in a first region of the weld part covered with the housing than in a second region of the weld part positioned outside the housing.Type: ApplicationFiled: November 1, 2019Publication date: September 30, 2021Inventors: Kentaro TOKUYAMA, Hiroaki KISHIDA, Taiki KINOSHITA, Hiroki SHIBATA, Toshinobu OHARA
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Publication number: 20210189966Abstract: An acoustic device includes: a perforated plate that has a plurality of holes penetrating in a plate thickness direction of the perforated plate and in which a main flow flows on one side of the perforated plate in the plate thickness direction; and a housing that is provided on the other side of the perforated plate in the plate thickness direction and partitions a space between the housing and the perforated plate, wherein part of the holes on the one side in the thickness direction is inclined to at least one of the one side and the other side of a flow direction of the main flow.Type: ApplicationFiled: March 2, 2017Publication date: June 24, 2021Inventors: Keisuke MATSUYAMA, Shinji AKAMATSU, Taiki KINOSHITA, Kenta TANIGUCHI
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Patent number: 10995956Abstract: A combustor (3) includes: a fuel nozzle configured to inject fuel; a tubular body (24) having a tubular shape in which a combustion region through which combustion gas flows is formed inside, and in which a plurality of slits (50) are formed extending in the circumferential direction at intervals in the circumferential direction; and throttle pieces (60) which are fitted into the slits (50), project radially inward from the inner circumferential side of the tubular body (24), and have a throttle face that extends along the flow direction of the combustion gas as it extends from the radially outer side inward.Type: GrantFiled: March 28, 2017Date of Patent: May 4, 2021Assignee: MITSUBISHI POWER, LTD.Inventors: Shuhei Kajimura, Kenji Miyamoto, Taiki Kinoshita, Kotaro Miyauchi
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Patent number: 10816198Abstract: The present invention is a combustor provided with a combustor transition pipe connected to a turbine while interposing a transition pipe seal in between, including a flange portion provided at an end portion on a downstream side in a fluid flow direction of the combustor transition pipe, the flange portion projecting to radially inside and extending in a circumferential direction. The flange portion includes a pin hole into which a pin to position the transition pipe seal is inserted, a circumferential slit portion either extending within a range in a radial direction where the pin hole is formed or being located on radially outside of the pin hole and extending in the circumferential direction, and a hole portion on which part of the circumferential slit portion abuts.Type: GrantFiled: March 24, 2017Date of Patent: October 27, 2020Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Ryutaro Fujisawa, Hikaru Kurosaki, Noriyuki Okada, Taiki Kinoshita, Hiroki Shibata
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Patent number: 10782025Abstract: A combustor pipe is linked to a vane shroud in which a vane is provided, and includes an inlet, an outlet, an inner pipe of which an inner space is a flow path for passing a combustion gas, a first cooling flow path through which a cooling medium passes being formed inside a wall that forms the flow path; and an outer pipe on an outer circumference of the inner pipe and secured to the inner pipe. A second cooling flow path through which a cooling medium passes and which is connected to the first cooling flow path near the outlet of the combustor pipe is formed between an outer circumferential surface of the inner pipe and an inner circumferential surface of the outer pipe, and a cooling promoting structure is formed on the outer pipe, inside the second cooling flow path near the first cooling flow path.Type: GrantFiled: September 9, 2016Date of Patent: September 22, 2020Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Shin Kato, Taiki Kinoshita, Shingo Sato
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Patent number: 10712004Abstract: A combustor includes: a combustion liner having a first region in which at least one first opening is formed; a nozzle configured to inject a fuel into the combustion liner; and a first acoustic device mounted to the combustion liner. The first acoustic device includes: a first casing portion having at least one first wall disposed facing the first region on an outer side of the combustion liner and at least one second opening formed thereon. The first casing portion defining at least one first space in communication with an inside of the combustion liner through the first opening; and a second casing portion having at least one second wall disposed facing the first wall on an outer side of the first casing portion. The second casing portion defines, between the first wall and the second wall, a second space in communication with the first space through the second opening.Type: GrantFiled: July 6, 2016Date of Patent: July 14, 2020Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Wataru Kugimiya, Taiki Kinoshita, Atsushi Koyama
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Patent number: 10663169Abstract: A cylinder for a combustor includes a cylindrical member, a first cooling passage defined in the cylindrical member and a second cooling passage defined in the cylindrical member, and a supply port extender. The first cooling passage includes a supply port that opens to an outer peripheral surface of the cylindrical member. The second cooling passage includes a discharge port that opens to the outer peripheral surface of the cylindrical member downstream of the supply port. The supply port extender includes a first wall that is disposed between the supply port and the discharge port and extends away from the outer peripheral surface of the cylindrical member and a second wall that is disposed upstream of the supply port and extends away from the outer peripheral surface of the cylindrical member.Type: GrantFiled: July 22, 2015Date of Patent: May 26, 2020Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Satoshi Mizukami, Satoshi Tanimura, Tetsu Konishi, Masaki Mitani, Taiki Kinoshita, Yoshiaki Yamaguchi, Takaaki Hase, Hiroshi Makigano, Hikaru Kurosaki
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Publication number: 20190368730Abstract: A resonant sound absorbing device of a gas turbine combustor includes a plurality of resonance chambers independently disposed side by side in an axial direction of the gas turbine combustor so as to communicate with a gas passage of the gas turbine combustor via acoustic holes. The plurality of resonance chambers include n related resonance chambers each satisfying: 0.9 × ? i = 1 n ? F i n ? F i ? 1.1 × ? i = 1 n ? F i n ( A ) where n is an integer of 2 or more, and Fi is a peak frequency corresponding to a maximum sound absorbing ratio of the ith related resonance chamber of the n related resonance chambers.Type: ApplicationFiled: February 28, 2018Publication date: December 5, 2019Inventors: Kiyoshi FUJIMOTO, Taiki KINOSHITA, Satoshi MIZUKAMI, Yoshinori WAKITA, Satoshi TAKIGUCHI, Wataru KUGIMIYA