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Ultra low injection angle fuel holes in a combustor fuel nozzle

United States Patent

8,291,705
October 23, 2012
View the Complete Patent at the US Patent & Trademark Office
A fuel nozzle for a combustor includes a mixing passage through which fluid is directed toward a combustion area and a plurality of swirler vanes disposed in the mixing passage. Each swirler vane of the plurality of swirler vanes includes at least one fuel hole through which fuel enters the mixing passage in an injection direction substantially parallel to an outer surface of the plurality of swirler vanes thereby decreasing a flameholding tendency of the fuel nozzle. A method of operating a fuel nozzle for a combustor includes flowing a fluid through a mixing passage past a plurality of swirler vanes and injecting a fuel into the mixing passage in an injection direction substantially parallel to an outer surface of the plurality of swirler vanes.
York; William David (Greer, SC)
General Electric Company (Schenectady, NY)
12/ 190,918
August 13, 2008
STATEMENT REGARDING GOVERNMENT INTEREST This invention was made with United States Government support under Contract No. DE-FC26-05NT42643 awarded by the Department of Energy. The Government has certain rights in the invention.