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Method for controlling coolant flow in airfoil, flow control structure and airfoil incorporating the same

United States Patent

July 8, 2003
View the Complete Patent at the US Patent & Trademark Office
A coolant flow control structure is provided to channel cooling media flow to the fillet region defined at the transition between the wall of a nozzle vane and a wall of a nozzle segment, for cooling the fillet region. In an exemplary embodiment, the flow control structure defines a gap with the fillet region to achieve the required heat transfer coefficients in this region to meet part life requirements.
Itzel; Gary Michael (Simpsonville, SC), Devine, II; Robert Henry (Simpsonville, SC), Chopra; Sanjay (Greenville, SC), Toornman; Thomas Nelson (Buford, GA)
General Electric Company (Schenectady, NY)
09/ 682,373
August 27, 2001
FEDERAL RESEARCH STATEMENT [Federal Research Statement Paragraph] This invention was made with Government support under Contract No. DE-FC21-95MC31176 awarded by the Department of Energy. The Government has certain rights in this invention.