Acoustic absorber for aircraft engines

Details Acoustic absorber for aircraft engines Acoustic absorber for aircraft engines

F - Mech Eng,Light,Heat,Weapons

02

C

F02C 7/045 (2006.01) F02K 1/82 (2006.01)

Patent

CA 2583103

The invention relates to an acoustic absorber, which is suitable especially for aircraft engines. Said acoustic absorber has a 3-dimensional structure (11) which is formed in a honeycomb manner and which when used in a drive unit, absorbs the noise thereof.The structure (11) comprises a plurality of folded honeycomb structures (8) which are formed by folding a flat semi- finished product.

L'invention concerne un absorbant acoustique adapté en particulier à des groupes motopropulseurs d'avions. Cet absorbant acoustique comprend une structure (11) tridimensionnelle de type en nid d'abeilles qui, lorsqu'elle est utilisée dans un groupe motopropulseur, absorbe le bruit de celui-ci. Cette structure (11) présente une pluralité d'alvéoles en accordéon (8) formées par pliage d'un produit semi-fini plat.

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