FIELD: machine building.
SUBSTANCE: disclosed is a device for cleaning air from foreign objects in a compressor of a double-flow turbojet engine. Device prevents passage of foreign objects to the high-pressure compressor stages due to their separation in the fan and support stages of the low pressure compressor. Removal of separated foreign objects is proposed to be performed in the last support step in the form of spatial annular branch in external wall of flow channel of discharge level in zone of axial clearance between rims of impeller and straightening device of stage. Said diversion pipe can simultaneously be used for air bypass and bleeding to engine and aircraft systems. If necessary, it is possible to increase degree of air cleaning from foreign objects due to inclusion of high pressure compressor into the device for cleaning of the first stages with removal of separated foreign objects in one of medium stages of high pressure compressor having air discharge for needs of engine and aircraft systems.
EFFECT: proposed device allows preventing ingress of foreign objects to axial steps of high pressure compressor, which improves engine reliability during operation of aircraft from ground, ice and snow-covered aerodromes.
1 cl, 4 dwg
