Turbine blade, manufacturing method for turbine blade, and gas turbine

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United States of America Patent

PATENT NO 11905848
SERIAL NO

17598013

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Abstract

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To provide a turbine blade, a manufacturing method for a turbine blade, and a gas turbine. In the turbine blade including a cooling passage provided along a blade height direction, the cooling passage includes: a first cooling hole including one end opening toward a front end, and having an inner diameter that is constant along the blade height direction; and a second cooling hole including one end communicating with the other end of the first cooling hole without a level difference, and having an inner diameter that is increased toward a base end. A length from the one end of the first cooling hole to a position where the first cooling hole and the second cooling hole are communicated with is 40% to 60% of a length from the one end of the first cooling hole to a gas path surface on the base end.

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Patent Owner(s)

Patent OwnerAddress
MITSUBISHI HEAVY INDUSTRIES LTD2-3 MARUNOUCHI 3-CHOME CHIYODA-KU TOKYO 1008332 JAPAN

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fujii, Takashi Kanagawa, JP 341 4820
Hatta, Masayoshi Kanagawa, JP 5 17
Kawasaki, Hiroshi Kanagawa, JP 112 1034
Kishihara, Hiroyuki Kanagawa, JP 28 1025
Mukai, Yosuke Tokyo, JP 6 26
Oda, Takaaki Kanagawa, JP 4 65
Otomo, Hiroyuki Kanagawa, JP 12 71
Takamura, Keita Kanagawa, JP 23 163
Tamura, Kazuhisa Tokyo, JP 35 273
Wakazono, Susumu Kanagawa, JP 26 126

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