TURBINE BUCKET COOLING - GENERAL ELECTRIC CO GE

Title:

TURBINE BUCKET COOLING

Document Type and Number:

Japanese Patent JP2018025189

Kind Code:

A

Abstract:

PROBLEM TO BE SOLVED: To provide a method of cooling at least a portion of a turbine bucket.SOLUTION: The invention relates generally to rotary machines and, more specifically, to the cooling of at least portions of a turbine bucket. A method comprises, during operation of a turbine, altering a swirl velocity of purge air beneath a platform lip (44) extending axially from a platform (42), where altering the swirl velocity of the purge air includes interrupting a flow of the purge air with a plurality of voids (110) disposed along a length of an angel wing extending axially from a face (62) of a shank portion (60) of the turbine bucket (40).SELECTED DRAWING: Figure 3

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Inventors:

CHOUHAN ROHIT
SOUMYIK KUMAR BHAUMIK
CLINT L INGRAM

Application Number:

JP2017135123A

Publication Date:

February 15, 2018

Filing Date:

July 11, 2017

Export Citation:

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Assignee:

GENERAL ELECTRIC CO GE

International Classes:

F01D5/14; F01D11/04; F01D25/00; F02C7/18; F02C7/28

Domestic Patent References:

JP2016508566A	2016-03-22
JP2015040566A	2015-03-02
JP2013139801A	2013-07-18

Foreign References:

US20130108441A1	2013-05-02
US20130302141A1	2013-11-14
US5222742A	1993-06-29
US20140003919A1	2014-01-02

Attorney, Agent or Firm:

Arakawa Satoshi
Hirokazu Ogura
Toshihisa Kurokawa
Takuto Tanaka

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