FIELD: engine building.
SUBSTANCE: present invention relates to a device for reducing noise of a jet stream of a gas turbine engine, comprising outer shell (16) having inner wall (20), defining outer side of annular passage (22) for flow of external circuit from engine, wherein said wall of outer shell includes multiple micro-jet circuits (28), each of which comprises intake means (30) for extracting the gas flow from the outflow channel of the outer circuit and feeding it to a single supply channel (32), which, in its turn, is opened into outer shell rear edge through at least one ejecting grid (34), suitable for separation of extracted gas flow into multiple gas flows with perpendicular cross sections, which have dimensions smaller than perpendicular section (D) of supply channel.
EFFECT: disclosed is a device with grids for ejecting micro-jets to reduce noise of a jet stream of a gas-turbine engine.
19 cl, 9 dwg
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