公开(公告)号：US20170292453A1

公开(公告)日：2017-10-12

申请号：US15630223

申请日：2017-06-22

Applicant: SAFRAN NACELLES

Inventor： Jean-Paul RAMI ,  Jérôme CORFA ,  Marc VERSAEVEL ,  François BREFORT ,  Remko MOEYS

IPC: F02C7/24 ,  F02K1/82 ,  F02C7/045

CPC classification number: F02C7/24 ,  B64D29/00 ,  B64D33/02 ,  B64D2033/0206 ,  F02C7/045 ,  F02K1/827 ,  F04D29/665 ,  F05D2220/323 ,  F05D2250/191 ,  F05D2250/25 ,  F05D2250/283 ,  G10K11/172 ,  Y02T50/672

Abstract: An acoustic attenuation panel for a turbojet engine nacelle is provided by the present disclosure. The panel includes at least one alveolar core disposed between at least one internal skin and at least one external skin. In one form, the alveolar core includes a plurality of alveoli having a helical-shaped cavity along an axis in a direction normal to at least one internal skin and at least one external skin.