Acoustic attenuation panel comprising a front skin and a central structure
AssigneesSafran Nacelles, Safran
InventorsMarc Versaevel, Jean-Philippe Ginefri, Fabrice Provost, Jeremy Quesnel, Wouter Balk, Sébastien Louchard, Loïc Hervé André Le Boulicaut
Life of this patent
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Abstract
An acoustic attenuation panel for a propulsion assembly includes an acoustic front skin having perforations, and a central structure formed from partitions arranged perpendicularly in order to make up cells, wherein the front skin and the central structure form the panel which is made as a single piece and is provided for directly covering a surface of an element of the propulsion assembly forming a rear skin which closes the cells of the central structure at the rear.
Claims13
An acoustic attenuation panel for a propulsion unit, the acoustic attenuation panel comprising:
- an acoustic front skin comprising perforations;
- and
- a central structure formed by partition walls disposed perpendicularly to the acoustic front skin to define cells,
- wherein the acoustic front skin and the central structure are molded integrally in one-piece, the cells of the central structure being open at a rear, wherein the acoustic attenuation panel directly covers a surface of a carrier element of the propulsion unit forming a rear skin closing at the rear the cells of the central structure.
Dependencies are inferred from the claim text.