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公开(公告)号：US11578659B2
公开(公告)日：2023-02-14
申请号：US16558646
申请日：2019-09-03
Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
Inventor： Tomoko Tsuru , Katsuhiko Ishida
Abstract: A cooling structure for a turbine airfoil includes: a lattice structure body formed such that a first rib set and a second rib set arranged in a cooling passage are stacked on each other in a lattice pattern; and lattice communication portions that allow passages formed between ribs of the first rib set to communicate with passages formed between ribs of the second rib set. Each of the first and second rib sets has rib walls each including a pair of ribs that are inclined in directions opposite to each other relative to an imaginary boundary line extending in a movement direction of a cooling medium and that are in contact with each other on the imaginary boundary line. A plurality of lattice communication portions are formed between two lattice communication portions at opposite end portions of each rib that forms the rib wall.
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公开(公告)号：US11384644B2
公开(公告)日：2022-07-12
申请号：US16558706
申请日：2019-09-03
Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
Inventor： Tomoko Tsuru , Katsuhiko Ishida
Abstract: A structure for cooling a turbine airfoil includes: a cooling passage formed between a first airfoil wall curved as to be concave relative to a high-temperature gas passage and a second airfoil wall curved so as to be convex relative to the high-temperature gas passage; lattice structure bodies each formed by stacking a plurality of ribs in a lattice pattern; a partition body provided between the adjacent lattice structure bodies; a cooling medium discharge port for discharging a cooling medium within the cooling passage to the outside; and an exposed wall portion formed as a portion of the second airfoil wall extending beyond the cooling medium discharge port to the outside. At outlet portions of the lattice structure bodies adjacent to each other across the partition body, adjacent first rib sets and second rib sets are inclined in opposite directions relative to the partition body, respectively.
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公开(公告)号：US11215361B2
公开(公告)日：2022-01-04
申请号：US16206154
申请日：2018-11-30
Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
Inventor： Tomoko Tsuru , Katsuhiko Ishida , Yuwa Kawahara
Abstract: In a structure for cooling a component member of a gas turbine using a working gas, a plurality of heat transfer enhancement ribs having W shapes are provided so as to project from the wall surface of a passage wall facing a cooling medium passage through which a cooling medium flows. In each heat transfer enhancement rib, outside corner portions facing toward the upstream side are formed in an angled shape, and at least any one of inside corner portions and outside corner portions other than the outside corner portion facing toward the upstream side are formed in a curved shape.
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公开(公告)号：US11708763B2
公开(公告)日：2023-07-25
申请号：US17702914
申请日：2022-03-24
Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
Inventor： Tomoko Tsuru , Hiroshi Taki , Daiki Nabeshima
CPC classification number: F01D5/18 , F01D9/065 , F01D25/12 , F05D2220/32 , F05D2240/12 , F05D2240/30 , F05D2260/20
Abstract: Provided is a turbine airfoil including: a cooling passage that allows a cooling medium to move from a base part side to a tip end part side in an airfoil height direction; a lattice structure including rib sets stacked in a lattice pattern in the cooling passage; inverting portions at opposite side edge portions of the lattice structure, each being open at a side edge portion and allowing the cooling medium to be inverted from a lattice flow passage defined between ribs of one rib set to a lattice flow passage defined between ribs of another rib set; and a communication flow passage defined between one side edge portion of the lattice structure and a side wall surface of the cooling passage, the communication flow passage extending in the airfoil height direction to communicate a plurality of lattice flow passages at the one side edge portion.
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Patent Agency Ranking
公开(公告)号：US11028701B2
公开(公告)日：2021-06-08
申请号：US16477670
申请日：2017-12-27
Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
Inventor： Tomoko Tsuru , Katsuhiko Ishida
Abstract: A structure for cooling a turbine airfoil includes: a cooling passage formed between first and second airfoil walls; a lattice structure body formed by stacking a plurality of ribs so as to form a lattice pattern; a cooling medium discharge port provided at a downstream end portion of the cooling passage for discharging cooling medium to the outside; an exposed wall portion formed as a portion of the second airfoil wall extending beyond the cooling medium discharge port to the outside; and a flat surface portion formed in the cooling passage from an outlet of the lattice structure body to the cooling medium discharge port and at which the wall surfaces of the first and second airfoil walls are formed as flat surfaces.
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公开(公告)号：US20190145623A1
公开(公告)日：2019-05-16
申请号：US16247968
申请日：2019-01-15
Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
Inventor： Kenichiro FUKUMOTO , Yoshihiro Yamasaki , Masayoshi Kinugawa , Kazuhiko Tanimura , Katsuhiko Ishida , Tomoko Tsuru , Takayuki Murata
IPC: F23M5/08 , B23K26/14 , B23K26/384 , B23K26/06
Abstract: In a structure for cooling a constituent member of a gas turbine engine using a working gas of the gas turbine engine as a cooling medium, on a wall surface of a passage wall formed from a part of the constituent member and facing a cooling medium passage through which the cooling medium flows, a recess formed on the wall surface of the passage wall and a projection formed on at least a part of a peripheral edge of the recess are provided.
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公开(公告)号：US11873992B2
公开(公告)日：2024-01-16
申请号：US18070039
申请日：2022-11-28
Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
Inventor： Masayoshi Kobayashi , Takeo Oda , Takeo Nishiura , Tomoko Tsuru , Takaya Hamamoto , Takeshi Takagi , Osamu Hisamatsu , Hirotaka Kurashima
Abstract: A combustor liner used for a gas turbine combustor and forming a combustion chamber includes: an outer side wall made of metal; a panel attached to an inner side of the outer side wall and made of a ceramic matrix composite material, the panel including a panel body facing the combustion chamber, and a connection piece rising from an exterior surface of the panel body at a side portion of the panel body and protruding in a lateral direction; and a connection unit configured to connect the panel to the outer side wall, the connection unit including an elastic member configured to bias at least one of the outer side wall and the connection piece, and a fixation member made of metal and configured to fix at least one of the connection piece and the elastic member to the outer side wall.
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公开(公告)号：US11543132B2
公开(公告)日：2023-01-03
申请号：US16407821
申请日：2019-05-09
Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
Inventor： Masayoshi Kobayashi , Takeo Oda , Takeo Nishiura , Tomoko Tsuru , Takaya Hamamoto , Takeshi Takagi , Osamu Hisamatsu , Hirotaka Kurashima
Abstract: A combustor liner used for a gas turbine combustor and forming a combustion chamber includes: an outer side wall made of metal; a panel attached to an inner side of the outer side wall and made of a ceramic matrix composite material, the panel including a panel body facing the combustion chamber, and a connection piece rising from an exterior surface of the panel body at a side portion of the panel body and protruding in a lateral direction; and a connection unit configured to connect the panel to the outer side wall, the connection unit including an elastic member configured to bias at least one of the outer side wall and the connection piece, and a fixation member made of metal and configured to fix at least one of the connection piece and the elastic member to the outer side wall.
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公开(公告)号：US11168884B2
公开(公告)日：2021-11-09
申请号：US16206154
申请日：2018-11-30
Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
Inventor： Tomoko Tsuru , Katsuhiko Ishida , Yuwa Kawahara
Abstract: In a structure for cooling a component member of a gas turbine using a working gas, a plurality of heat transfer enhancement ribs having W shapes are provided so as to project from the wall surface of a passage wall facing a cooling medium passage through which a cooling medium flows. In each heat transfer enhancement rib, outside corner portions facing toward the upstream side are formed in an angled shape, and at least any one of inside corner portions and outside corner portions other than the outside corner portion facing toward the upstream side are formed in a curved shape.
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