The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 07, 2023
Filed:
Nov. 26, 2019
Airbus Operations Sas, Toulouse, FR;
Claire Maffre, Lias, FR;
Jérôme Gaillardo, Cugnaux, FR;
Lionel Czapla, Cornebarrieu, FR;
Florian Ravise, Saint-Herblain, FR;
Laurent Caliman, Toulouse, FR;
Laurent Cazeaux, Tournefeuille, FR;
Antoine Cousin, L'Union, FR;
Denis Brossard, Saint Aignan de Grand Lieu, FR;
AIRBUS OPERATIONS SAS, Toulouse, FR;
Abstract
An acoustic absorption structure comprising a plurality of resonators. Each resonator comprises a first chamber which has a first mouthpiece delimited by an edge pressed against an inner surface of a porous zone of a skin so that the first chamber and the skin delimit a first cavity, a second chamber, in which is positioned the first chamber, which delimits, with the first chamber, a second cavity, at least one acoustic orifice passing through the first chamber, at least one drainage orifice passing through the first chamber and at least one drainage hole passing the second chamber, each drainage orifice and each drainage hole being configured to limit an accumulation of fluid in the resonator. Also, an aircraft propulsive assembly or an aircraft comprising the acoustic absorption structure are provided.