Back to results
US 2022/0250767 A1Published application
Acoustic attenuation panel and its manufacturing methods
AssigneeSafran Nacelles
InventorsPierre CARUEL, Bertrand DESJOYEAUX, Bertrand LEROYER, Marc VERSAEVEL, Laurent Georges VALLEROY
Life of this patent
Estimating the term…
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.
Claims20
An acoustic attenuation panel comprising:
- a cellular structure comprising a plurality of acoustic cells separated from each other by peripheral partitions;
- a perforated acoustic structure,
- the perforated acoustic structure and the cellular structure being formed in a single part in a first material;
- and
- a porous acoustic layer formed of a second material, fixed to a surface of the perforated acoustic structure by entanglement of the first material and the second material.
2 more elements
Dependencies are inferred from the claim text.