Acoustically attenuating sandwich panel constructions
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United States of America Patent
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Mar 22, 2016
Grant Date -
Dec 3, 2015
app pub date -
Jun 2, 2014
filing date -
Jun 2, 2014
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Abstract
An aircraft engine assembly comprising a nacelle configured to surround the aircraft engine having an inlet open to ambient air and an annular acoustic panel provided within the nacelle. Sound emitted from the aircraft engine is attenuated by the annular acoustic panel. The annular acoustic panel comprises an open framework, made from a first material, forming a plurality of cells.
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