Title:
COOLING DEVICE FOR PLATFORM OF GAS TURBINE MOVING BLADE
Document Type and Number:
Japanese Patent JP3040656
Kind Code:
B2
Abstract:
PURPOSE: To effectively cool the platform of a gas turbine moving blade.
CONSTITUTION: A gap C is formed between platforms 2 and 2 of gas turbine moving blades arranged adjacently to each other in a circumferential direction. Sealed air passes through the gap C to cool the platforms 2, 2. A seal pin groove A which does not penetrate to both sides is formed on an end face of one platform 2. A seal pin 3 on which a groove is formed in a circumferential direction is fitted into the groove A. A plurality of grooves penetrating from the seal pin groove to the upper surface of the other platform 2 are formed on the end face of the other platform 2, while a round rod pin is fitted into the seal pin groove.
Inventors:
Keizo Tsukagoshi
Yasuyoshi Tomita
Yasuyoshi Tomita
Application Number:
JP9844494A
Publication Date:
May 15, 2000
Filing Date:
May 12, 1994
Export Citation:
Assignee:
MITSUBISHI HEAVY INDUSTRIES,LTD.
International Classes:
F01D5/14; F01D5/08; F01D5/18; F01D11/04; F02C7/18; F02C7/28; (IPC1-7): F01D5/18; F01D5/08
Domestic Patent References:
| JP6463605A |
Attorney, Agent or Firm:
Arata Ishikawa
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