Title:
シュラウドを改修するための方法およびブレード
Document Type and Number:
Japanese Patent JP7106267
Kind Code:
B2
Abstract:
A method for modifying an airfoil shroud located at a tip of an airfoil is provided. A locating step locates a reference location in a first end edge. The reference location includes a portion of a fillet. A seal rail extends circumferentially along a radially outer surface of the airfoil shroud. The fillet extends along the radially outer surface and is positioned directly adjacent to the seal rail. A forming step forms a compound relief cut in the fillet without performing a weld process on the airfoil shroud to remove the reference location. The compound relief cut has a first cut having a first radius extending from the seal rail towards the first end edge, and a second cut having a second radius extending from an end of the first cut to the first end edge. Modifying the airfoil shroud is complete following forming the compound relief cut.
Inventors:
Richard Gordon Rawlings
Kevin Leon Blues
William Scott Semitis
Kevin Leon Blues
William Scott Semitis
Application Number:
JP2017235652A
Publication Date:
July 26, 2022
Filing Date:
December 08, 2017
Export Citation:
Assignee:
GENERAL ELECTRIC COMPANY
International Classes:
F01D5/22; F01D25/00; F02C7/00
Domestic Patent References:
| JP2006322460A | ||||
| JP2009115091A | ||||
| JP2014163381A |
Foreign References:
| US20140147284 | ||||
| US20130084169 |
Attorney, Agent or Firm:
Hiroshi Ogura
Toshihisa Kurokawa
Takuto Tanaka
Toshihisa Kurokawa
Takuto Tanaka