公开(公告)号：US20220250767A1

公开(公告)日：2022-08-11

申请号：US17729541

申请日：2022-04-26

Applicant: Safran Nacelles

Inventor： Pierre CARUEL ,  Bertrand DESJOYEAUX ,  Bertrand LEROYER ,  Marc VERSAEVEL ,  Laurent Georges VALLEROY

IPC: B64F1/26

Abstract: An acoustic attenuation panel includes a cellular structure including a plurality of acoustic cells separated from one another by peripheral partitions, a perforated acoustic structure, the perforated acoustic structure and the cellular structure being formed in one piece in a first material, and a porous acoustic layer formed of a second material and fastened to a surface of the perforated acoustic structure by entangling the first material and the second material.