公开(公告)号：US12264625B2

公开(公告)日：2025-04-01

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: F02C7/045 ,  B32B3/12 ,  B32B3/26

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.