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AXIAL STAGE INJECTION DUAL FREQUENCY RESONATOR FOR A COMBUSTOR OF A GAS TURBINE ENGINE

United States Patent Application

20150167980
A1
View the Complete Application at the US Patent & Trademark Office
A gas turbine engine (202) including a secondary fuel stage (218) which also functions as a dual frequency resonator. The engine includes a combustor (210) and a casing (205) enclosing the combustor to define a volume (214). The secondary fuel stage includes a nozzle (217) sized to be effective as a transverse resonator at a high frequency. The nozzle and the volume (214) of the casing are sized to be effective as a longitudinal resonator at an intermediate frequency.
Pent, Jared M. (Gotha, FL), Portillo Bilbao, Juan Enrique (Oviedo, FL), Johnson, Perry L. (Orlando, FL), Abu-Irshaid, Esam (Orlando, FL), Laster, Walter R. (Oviedo, FL), Martin, Scott M. (Titusville, FL), Rofail, Rafik N. (Oviedo, FL)
14/ 132,007
December 18, 2013
STATEMENT REGARDING FEDERALLY SPONSORED DEVELOPMENT [0001] Development for this invention was supported in part by Contract No. DE-FC26-05NT42644, awarded by the United States Department of Energy. Accordingly, the United States Government may have certain rights in this invention.