PRECHAMBER PULSATING JET ENGINE Russian patent published in 2021 - IPC F02K7/67 

FIELD: aircraft engineering.

SUBSTANCE: invention relates to air-jet engines of aircraft and can be used as an engine of small unmanned aerial vehicles. A prechamber pulsating jet engine containing, in particular, a combustion chamber 6, on the rear wall of which a visor 7 is mounted, equipped with a means of forming a gas flow, an intake system of the first 2 and second 4 pipes of mixers, aerodynamic valves 13, a fuel collector and a fuel supply nozzle 1, a fuel heating coil 12, a resonator pipe 9. A distinctive feature is that the means of forming the gas flow is made in the form of at least one through hole 16 located near the rear wall of the combustion chamber 6, on which an additional fuel nozzle 17 is mounted, the nozzle of which is directed towards the named hole 16 along the gas flow. The width of the hole does not exceed half the width of the visor. The generant of the through hole can be partially formed by the rear wall of the combustion chamber.

EFFECT: increased thermodynamic efficiency due to the prechamber ignition of the recirculation zone.

3 cl, 4 dwg