FIELD: engines and pumps.
SUBSTANCE: double-stage pulsating detonation device comprises at least one combustion prechamber arranged with possibility to burn mixture of hydrocarbon fuel and gas, at least one Laval nozzle connected to mentioned at least one combustion prechamber and arranged with provision of possibility of passage of at least some amount of burnt mixture via at least one Laval nozzle. At least one Laval nozzle includes at least one surface, having at least one hole arranged with the possibility of injection of at least auxiliary gas and at least one geometric resonator. Geometric resonator is connected to mentioned at least one Laval nozzle and is arranged with the possibility to produce some amount of burnt mixture and detonation of at least some produced burnt mixture.
EFFECT: increased engine thrust and efficiency factor.
15 cl, 10 dwg
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