FIELD: jet engine plants; pulse jet engines with resonance combustion chambers. SUBSTANCE: reaction nozzle is provided with head 4 and device 6 for creating shock waves. Head 4 is made in form of supercritical portion of Laval nozzle whose inner surface is extension of surface of semi-closed chamber 1. Device 6 for creating shock waves is made in form of hollow streamlined body and working medium supply unit 3 is made in form of circular slot formed by housing of chamber of engine 5 and central body 2. Device 6 for creating shock waves is rigidly secured inside nozzle and is mounted coaxially relative to axis of nozzle. EFFECT: enhanced efficiency. 1 dwg
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