The device of acoustic processing of the noise of the turbine and combustion

摘要

The present invention relates to a device of acoustic processing of the internal structure of the ejection conduit of the jet engine nacelle, the structure comprising an upstream zone (z1) and a downstream zone (z2) with respect to the direction of flow of air in the ejection conduit, the upstream and downstream being positioned on either side of a separating wall (3) having a first face of the side of the upstream zone and a second face of the side of the downstream zone, characterized in that the partition (3) is a micro - porous wall and in that the face of the partition (3) which is of the side of the downstream zone is covered with a honeycomb structure (6) for the attenuation of the acoustic waves high fréquences.application to the treatment of the combustion noise, and turbine.