FIELD: engines and pumps.
SUBSTANCE: proposed engine comprises combustion chamber, turbine consuming combustion products from combustion chamber, exhaust branch pipe with its part making diffuser connected downstream of turbine, and ejector. Upstream ejector part envelopes diffuser downstream part to produce discharge cooling air flow channel of external loop. Ejector extends downstream further that downstream diffuser end. Discharge channel features annular shape formed by ejector upstream part and diffuser downstream part. Diffuser downstream part shape differs from petal shape to allow cooling air secondary flow escaping via annular discharge channel to flow along ejector outer surface. Ejector has wall to make its inner surface formed, at least, partially by noise killer.
EFFECT: higher efficiency of noise reduction.
4 cl, 2 dwg
