FIELD: auxiliary power plant.
SUBSTANCE: auxiliary power unit of the aircraft contains a receiver, at least one air intake flap (12) with a drive, a gas turbine engine with an exhaust device, a branch pipe for supplying atmospheric air (7) from the receiver to the mentioned gas turbine engine, a noise damping device (8). The receiver is located above the gas turbine engine. The receiver is made of two sections (10, 11). One section (10) of the receiver is provided with at least one air intake flap (12) located on the upper fuselage vault. The other section of the receiver features a branch pipe (7) for supplying atmospheric air to the mentioned gas turbine engine and a noise suppressing device (8) installed. The silencer is located between at least one air intake flap (12) and the branch pipe (7) for supplying atmospheric air to the gas turbine engine.
EFFECT: increased reliability of protection of the gas turbine engine of the APU from ingress of foreign objects, reduced noise level.
4 cl, 6 dwg
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