FAIRING-SUPERCHARGER AT INLET TO AIR INTAKE OF COMPRESSOR OF TURBOPROP-FAN ENGINE Russian patent published in 2018 - IPC B64C11/14 F02K3/06 

FIELD: engines and pumps.

SUBSTANCE: invention relates to aircraft turbojet engines. Fairing-supercharger at the inlet to the air intake of a compressor of a turboprop-fan engine includes housing (1) and axle-shafts (3) moving relative to its own axis wide blades (5) of screws. Fairing contains protrusions on the outer surface, placed under each blade (5), mounted at an angle to the axis of the fairing and made in the form of profiled blades (2). Length of blades (2) is made not lower than the height of the annular channel. If the number of blades (2) of the fairing is equal to the number of blades (5) of the screw of blade (2), the fairing along the entire length is made with holes for the passage of shaft axes (3). If blades (2) for the fairing are made with a limited number of blades (5), the blades with holes and without holes are alternating, and the blades without holes are located between the blades with one, two or N blades without holes, where N – an integer arbitrary number.

EFFECT: invention increases the efficiency of the engine in all modes of operation.

3 cl, 4 dwg