Acoustic impedance-matched fuel nozzle device and tunable fuel injection resonator assembly

摘要

The ratio of the cross-sectional area of an orifice portion (36) to the cross-sectional area of a tube portion (34) is selected such that the acoustic impedance of the orifice portion is substantially the same as the acoustic impedance of the tube portion. Independent claims are also included for the following: (a) a method for controlling the combustion dynamics of a gas turbine engine system; and (b) a fuel injection resonator assembly.