Aircraft leading edge

B - Operations – Transporting – 64 – D

Patent

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Details

B64D 15/16 (2006.01) B64D 33/02 (2006.01) F02C 7/045 (2006.01) G10K 11/172 (2006.01)

Patent

CA 2669178

The subject of the invention is an aircraft leading edge such as, for example, an air intake (22) of a nacelle (14) of a propulsion unit, comprising a covering (26) for acoustic treatment comprising, from the outside inwards, an acoustically resistive porous layer having a given proportion of open surface, at least one cellular structure and a reflective layer, said covering (26) incorporating a frost treatment system, characterized in that a frost treatment system comprises at least one vibration emitter (36).

L'objet de l'invention est un bord d attaque d aéronef, tel que par exemple une entrée d air (22) d une nacelle (14) d un ensemble propulsif, comprenant un revêtement (26) pour le traitement acoustique comportant de l extérieur vers l intérieur une couche poreuse acoustiquement résistive possédant un taux déterminé de surface ouverte, au moins une structure alvéolaire et une couche 5 réflectrice, ledit revêtement (26) intégrant un système de traitement du givre, caractérisé en ce qu´ un système de traitement du givre comprend au moins un émetteur (36) de vibrations.

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