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Turbine combustor with fuel nozzles having inner and outer fuel circuits

United States Patent

December 24, 2013
View the Complete Patent at the US Patent & Trademark Office
A combustor cap assembly for a turbine engine includes a combustor cap and a plurality of fuel nozzles mounted on the combustor cap. One or more of the fuel nozzles would include two separate fuel circuits which are individually controllable. The combustor cap assembly would be controlled so that individual fuel circuits of the fuel nozzles are operated or deliberately shut off to provide for physical separation between the flow of fuel delivered by adjacent fuel nozzles and/or so that adjacent fuel nozzles operate at different pressure differentials. Operating a combustor cap assembly in this fashion helps to reduce or eliminate the generation of undesirable and potentially harmful noise.
Uhm; Jong Ho (Simpsonville, SC), Johnson; Thomas Edward (Greer, SC), Kim; Kwanwoo (Greer, SC)
General Electric Company (Schenectady, NY)
12/ 850,763
August 5, 2010
This invention was made with Government support under Contract No. DE-FC26-05NT42643, awarded by the US Department of Energy (DOE). The Government has certain rights in this invention