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Title: Pre-stressed/pre-compressed gas turbine nozzle

Abstract

A method of increasing low cycle fatigue life of a turbine nozzle comprising a plurality of stationary airfoils extending between radially inner and outer ring segments comprising a) providing at least one radial passage in each of the plurality of airfoils; b) installing a rod in the radial passage extending between the radially inner and outer ring segments and fixing one end of the rod to one of the inner and outer rings; and c) pre-loading the rod to compress the airfoil between the inner and outer ring segments.

Inventors:
 [1];  [2];  [3]
  1. (Schenectady, NY)
  2. (Clifton Park, NY)
  3. (Guilderland, NY)
Issue Date:
Research Org.:
General Electric Company (Schenectady, NY)
OSTI Identifier:
874498
Patent Number(s):
6402463
Assignee:
General Electric Company (Schenectady, NY) NETL
DOE Contract Number:  
FC21-95MC31176
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
pre-stressedpre-compressed; gas; turbine; nozzle; method; increasing; cycle; fatigue; life; comprising; plurality; stationary; airfoils; extending; radially; inner; outer; segments; providing; radial; passage; installing; rod; fixing; rings; pre-loading; compress; airfoil; gas turbine; turbine nozzle; radially inner; fatigue life; /415/

Citation Formats

Jang, Hoyle, Itzel, Gary Michael, and Yu, Yufeng Phillip. Pre-stressed/pre-compressed gas turbine nozzle. United States: N. p., 2002. Web.
Jang, Hoyle, Itzel, Gary Michael, & Yu, Yufeng Phillip. Pre-stressed/pre-compressed gas turbine nozzle. United States.
Jang, Hoyle, Itzel, Gary Michael, and Yu, Yufeng Phillip. Tue . "Pre-stressed/pre-compressed gas turbine nozzle". United States. https://www.osti.gov/servlets/purl/874498.
@article{osti_874498,
title = {Pre-stressed/pre-compressed gas turbine nozzle},
author = {Jang, Hoyle and Itzel, Gary Michael and Yu, Yufeng Phillip},
abstractNote = {A method of increasing low cycle fatigue life of a turbine nozzle comprising a plurality of stationary airfoils extending between radially inner and outer ring segments comprising a) providing at least one radial passage in each of the plurality of airfoils; b) installing a rod in the radial passage extending between the radially inner and outer ring segments and fixing one end of the rod to one of the inner and outer rings; and c) pre-loading the rod to compress the airfoil between the inner and outer ring segments.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2002},
month = {1}
}

Patent:

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