Acoustic liner
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United States of America Patent
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Mar 14, 2017
Grant Date -
Dec 24, 2015
app pub date -
Jun 23, 2014
filing date -
Jun 23, 2014
priority date (Note) -
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Abstract
An acoustic liner that may be for a turbofan engine includes a first panel that may be non-permeable and a permeable panel spaced from the first panel. A non-permeable wall located between the first panel and the permeable panel faces in a first direction away from the first panel and a non-permeable wall, also between the panels, faces in a second direction away from the first panel and traversing the first direction. The liner may further include a plurality of sidewalls spaced from one-another, extending between the panels, and through the walls.
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