FIELD: machine building.
SUBSTANCE: proposed device comprises noise-and-heat protection casing to make together with engine housing an annular chamber, set of fans communicated with annular manifold with orifices directed toward gas turbine unit engine cooled surface. Annular manifold orifices are directed so that their axes extend parallel with engine lengthwise axis. Annular waste (hot) air receiver is arranged behind engine cooled surface to communicate with ambient air.
EFFECT: higher efficiency of cooling and engine reliability.
3 dwg
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