公开(公告)号：US20170122204A1

公开(公告)日：2017-05-04

申请号：US15403658

申请日：2017-01-11

Applicant: SAFRAN NACELLES

Inventor： Marc VERSAEVEL ,  Arnaud DELEHOUZE ,  Laurence LEMAINS ,  Pierre-François BEHAGHEL

IPC: F02C7/047 ,  F01D25/24 ,  B64D33/02 ,  B64D15/04 ,  B64D29/00 ,  F02C7/045 ,  F01D25/10

CPC classification number: F02C7/047 ,  B64D15/04 ,  B64D29/00 ,  B64D33/02 ,  B64D2033/0206 ,  B64D2033/0233 ,  F01D25/10 ,  F01D25/24 ,  F02C7/045 ,  F05D2220/323

Abstract: A front lip of a turbofan engine nacelle is provided, defined at the rear by a partition wall, the lip comprising an annular de-icing space including a tube for supplying hot air in order to de-ice the outer walls thereof, said lip also including acoustic panels arranged on the wall thereof substantially radially facing the axis of the nacelle. The front lip includes hot-air outlet bores/piercings which are arranged between the front end of the lip and said acoustic panels, which allow a flow of hot air, from said annular space, forming a substantially regular film which covers said acoustic panels with a boundary layer in order to heat said acoustic panels.