FIELD: engines and pumps.
SUBSTANCE: device for removing foreign objects from the air flow in the axial compressor stage or the sub-zone of the fan stage of the gas turbine engine, in which the geometry of the blades of the first stage of the compressor or fan is designed the way to affect foreign objects with the rotating blades of the compressor or fan, sufficient to move them in the radial direction beyond the backward-facing guide vanes, and remove them into the exhaust annular channel located outside the vanes or into the external path of the fan motor. For this purpose the working blades of the tread have a rear tail part bent towards the direction of rotation, so that the output angles of the blade profiles exceed 90°.
EFFECT: increase in the efficiency of separation of foreign objects is achieved.
1 cl, 14 dwg
