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Gas turbine premixer with internal cooling

United States Patent

December 18, 2012
View the Complete Patent at the US Patent & Trademark Office
A system that includes a turbine fuel nozzle comprising an air-fuel premixer. The air-fuel premixed includes a swirl vane configured to swirl fuel and air in a downstream direction, wherein the swirl vane comprises an internal coolant path from a downstream end portion in an upstream direction through a substantial length of the swirl vane.
York; William David (Greer, SC), Johnson; Thomas Edward (Greer, SC), Lacy; Benjamin Paul (Greer, SC), Stevenson; Christian Xavier (Greenville, SC)
General Electric Company (Schenectady, NY)
12/ 425,293
April 16, 2009
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH & DEVELOPMENT This invention was made with Government support under contract number DE-FC26-05NT42643 awarded by the Department of Energy. The Government has certain rights in the invention.