TURBOFAN COMPRISING AN INTERMEDIATE STREAM FOR THE SUPPLY OF AIR VIA RADIAL ARMS TO AN EXHAUST HOUSING OF SAID TURBOFAN

摘要

The invention relates to a turbofan (1) comprising a low-pressure compressor (3); a series of housings (9, 10) arranged downstream of said low-pressure compressor (3) for defining a primary stream, and comprising an upstream edge (19) defining an inlet (23); a high-pressure compressor (24) in the primary stream; a shroud (11) surrounding the series of housings (9, 10) for defining a stream of circulation of an intermediate flow (7), and having an upstream edge (19) defining a circular inlet (21) arranged upstream of the high-pressure compressor (24); a secondary stream housing (12) surrounding the shroud (11) for defining a secondary stream; and an exhaust housing (38) comprising radial arms (39) that collect the air from the intermediate stream.