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1. (WO2018146405) TURBOFAN COMPRISING AN INTERMEDIATE STREAM FOR THE SUPPLY OF AIR VIA RADIAL ARMS TO AN EXHAUST HOUSING OF SAID TURBOFAN

Pub. No.:    WO/2018/146405    International Application No.:    PCT/FR2018/050275
Publication Date: Fri Aug 17 01:59:59 CEST 2018 International Filing Date: Tue Feb 06 00:59:59 CET 2018
IPC: F02K 3/077
F01D 9/06
F02C 6/08
F02C 7/18
Applicants: SAFRAN AIRCRAFT ENGINES
Inventors: BEAUJARD, Antoine, Jean-Philippe
BOUDEBIZA, Tewfik
PIKOVSKY, Catherine
VERDIER, Bastien, Pierre
Title: TURBOFAN COMPRISING AN INTERMEDIATE STREAM FOR THE SUPPLY OF AIR VIA RADIAL ARMS TO AN EXHAUST HOUSING OF SAID TURBOFAN
Abstract:
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.