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:
-
- Glenmont, NY
- Greenville, SC
- Greer, SC
- Issue Date:
- Research Org.:
- General Electric Co., Schenectady, NY (United States)
- OSTI Identifier:
- 874801
- Patent Number(s):
- 6464462
- Assignee:
- General Electric Company (Schenectady, NY)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B22 - CASTING B22C - FOUNDRY MOULDING
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- 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 = {Tue Jan 01 00:00:00 EST 2002},
month = {Tue Jan 01 00:00:00 EST 2002}
}
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Works referenced in this record:
Development Requirements for an Advanced Gas Turbine System
journal, October 1995
- Bannister, R. L.; Cheruvu, N. S.; Little, D. A.
- Journal of Engineering for Gas Turbines and Power, Vol. 117, Issue 4
Advances in Steam Path Technology
journal, April 1996
- Cofer, J. I.
- Journal of Engineering for Gas Turbines and Power, Vol. 118, Issue 2