Title:
タービン翼及び蒸気タービン
Document Type and Number:
Japanese Patent JP7246959
Kind Code:
B2
Abstract:
A rotor blade 32 includes a blade body 33 which has a negative-pressure surface 33a and a positive-pressure surface 33b extending in a blade height direction Z, and a platform 35 which is connected to an end portion of the blade body 33 in the blade height direction Z and extends in a circumferential direction Dc. In an end surface 35a of the platform 35 facing an axial direction Da, a convex portion 51 protruding in the axial direction Da and a concave portion 52 recessed in the axial direction Da are formed on an end surface 35a of the platform 35 facing the upstream side Dau. When viewed in the blade height direction Z, the convex portion 51 and the concave portion 52 are alternately formed in the circumferential direction Dc.
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Inventors:
Takuro Koda
Application Number:
JP2019024406A
Publication Date:
March 28, 2023
Filing Date:
February 14, 2019
Export Citation:
Assignee:
Mitsubishi Heavy Industries Compressor Co., Ltd.
International Classes:
F01D5/14
Domestic Patent References:
| JP56069402A | ||||
| JP2000073702A | ||||
| JP2016138551A |
Foreign References:
| US20190003323 | ||||
| US20110243749 | ||||
| US20150107265 | ||||
| EP1067273A1 |
Attorney, Agent or Firm:
Yasushi Matsunuma
Eisuke Ito
Hiroyuki Hashimoto
Ancient city Satoshi
Koichiro Kamada
Taichi Hasegawa
Eisuke Ito
Hiroyuki Hashimoto
Ancient city Satoshi
Koichiro Kamada
Taichi Hasegawa
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