METHOD OF INCREASING REACTIVE THRUST OF VALVELESS PULSEJET ENGINE Russian patent published in 2017 - IPC F02K7/02 F02K7/04 

FIELD: engines and pumps.

SUBSTANCE: method includes cyclic exhaust of combustion products and absorption of atmospheric air in the inlet port with simultaneous generation of two annular vortices of multidirectional spin, which is carried out in the front part of the combustion chamber in the cycle of expansion of the combustion products flowing towards the inlet duct. A portion of the above combustion product stream is directed through an annular torus-shaped tapered channel to provide flow acceleration and create an ejecting effect at the inlet of the combustion chamber of the engine.

EFFECT: increase in reactive thrust due to the intensification of mass transfer, which is carried out by the generation of two annular vortices with a multidirectional spin.

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