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Title: Gas turbine bucket wall thickness control

Abstract

A core for use in casting a turbine bucket including serpentine cooling passages is divided into two pieces including a leading edge core section and a trailing edge core section. Wall thicknesses at the leading edge and the trailing edge of the turbine bucket can be controlled independent of each other by separately positioning the leading edge core section and the trailing edge core section in the casting die. The controlled leading and trailing edge thicknesses can thus be optimized for efficient cooling, resulting in more efficient turbine operation.

Inventors:
 [1];  [2];  [3]
  1. (Glenmont, NY)
  2. (Greenville, SC)
  3. (Greer, SC)
Issue Date:
Research Org.:
General Electric Company (Schenectady, NY)
OSTI Identifier:
874801
Patent Number(s):
6464462
Assignee:
General Electric Company (Schenectady, NY) NETL
DOE Contract Number:  
FC21-95MC31176
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
gas; turbine; bucket; wall; thickness; control; core; casting; including; serpentine; cooling; passages; divided; pieces; leading; edge; section; trailing; thicknesses; controlled; independent; separately; positioning; die; optimized; efficient; resulting; operation; gas turbine; leading edge; cooling passages; /416/29/164/

Citation Formats

Stathopoulos, Dimitrios, Xu, Liming, and Lewis, Doyle C. Gas turbine bucket wall thickness control. United States: N. p., 2002. Web.
Stathopoulos, Dimitrios, Xu, Liming, & Lewis, Doyle C. Gas turbine bucket wall thickness control. United States.
Stathopoulos, Dimitrios, Xu, Liming, and Lewis, Doyle C. Tue . "Gas turbine bucket wall thickness control". United States. https://www.osti.gov/servlets/purl/874801.
@article{osti_874801,
title = {Gas turbine bucket wall thickness control},
author = {Stathopoulos, Dimitrios and Xu, Liming and Lewis, Doyle C.},
abstractNote = {A core for use in casting a turbine bucket including serpentine cooling passages is divided into two pieces including a leading edge core section and a trailing edge core section. Wall thicknesses at the leading edge and the trailing edge of the turbine bucket can be controlled independent of each other by separately positioning the leading edge core section and the trailing edge core section in the casting die. The controlled leading and trailing edge thicknesses can thus be optimized for efficient cooling, resulting in more efficient turbine operation.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2002},
month = {1}
}

Patent:

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