Title:
タービン羽根のエアフォイルを交換する方法
Document Type and Number:
Japanese Patent JP4689120
Kind Code:
B2
Abstract:
A method for refurbishing turbine engine vanes in which the airfoils are removed and replaced. The original configuration of the vanes can be modified from a single casting or welded pair to a multi-piece component assembly comprising individual airfoil segments attached to the inner and outer platforms. The component assembly allows replacement of airfoils and/or platforms with improved castings in the form of improved alloys, improved physical geometry, or both. Modifications can be made in the vane class area without the need to modify the airfoil contour by brazing or other contour alteration processes. According to the method, the platforms are separated from the airfoils, the openings in the platforms are sealed, new airfoil sockets are cut into the platforms, and the vane is reassembled.
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Inventors:
Goodwater, frank
Kang, David
Kang, David
Application Number:
JP2001516710A
Publication Date:
May 25, 2011
Filing Date:
August 04, 2000
Export Citation:
Assignee:
Chromaloy Gas Turbine Corporation
International Classes:
F01D5/18; B23P6/00; F01D5/00; F01D9/02; F01D9/04
Domestic Patent References:
| JP9168927A | ||||
| JP10501463A | ||||
| JP9506039A | ||||
| JP5169323A |
Foreign References:
| US3909157 | ||||
| US5758416 |
Attorney, Agent or Firm:
Kazuo Shamoto
Tadashi Masui
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Fujihiro Kanda
Tadashi Masui
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Fujihiro Kanda