FIELD: engines and pumps.
SUBSTANCE: proposed unit comprises gas turbine engine with compressor, turbine, combustion chamber arranged behind the compressor and ahead of turbine, fluid feed system, variable-geometry resonator and controller to tune said resonator in response to feedback signal. Fluid feed system can feed one or several fluids into combustion chamber. Variable-geometry resonator is connected to said fluid feed system and incorporates Helmholtz resonator.
EFFECT: decreased oscillations created by combustion chamber owing to pressure fluctuation inside fluid feed components.
20 cl, 8 dwg
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