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Method of cooling gas only nozzle fuel tip

United States Patent

September 24, 2002
View the Complete Patent at the US Patent & Trademark Office
A diffusion flame nozzle gas tip is provided to convert a dual fuel nozzle to a gas only nozzle. The nozle tip diverts compressor discharge air from the passage feeding the diffusion nozzle air swirl vanes to a region vacated by removal of the dual fuel components, so that the diverted compressor discharge air can flow to and through effusion holes in the end cap plate of the nozzle tip. In a preferred embodiment, the nozzle gas tip defines a cavity for receiving the compressor discharge air from a peripheral passage of the nozzle for flow through the effusion openings defined in the end cap plate.
Bechtel; William Theodore (Scotia, NY), Fitts; David Orus (Ballston Spa, NY), DeLeonardo; Guy Wayne (Glenville, NY)
General Electric Company (Schenectady, NY)
09/ 994,831
November 28, 2001
FEDERAL REASEARCH STATEMENT 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.