Porous septum cap
AssigneeRohr, Inc.
InventorsIan F. Winfield, Robert L. Braden
Life of this patent
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Abstract
A passive noise attenuation system is described herein. The passive noise attenuation system may comprise an acoustic structure. The acoustic structure may comprise a perforated top sheet and a core accessible via the perforated top sheet. The core may comprise a cell having a plurality of interior walls. The acoustic structure may comprise a back skin. The acoustic structure may comprise an inherently porous material disposed between the top sheet and the back skin, wherein the porous material forms a plane or multiple planes coupled to each interior wall to tangentially subdivide the core.
Claims19
An acoustic structure, comprising
- a perforated top sheet;
- a core accessible via the perforated top sheet, defining a cell comprising a plurality of interior walls;
- a back skin;
- and
- an inherently porous material embedded with an adhesive binder forming a self-adhering porous septum cap disposed within the cell between the perforated top sheet and the back skin, wherein the inherently porous material forms a plane coupled to each interior wall of the plurality of interior walls to subdivide the core, wherein the plane is substantially parallel to the perforated top sheet.
Dependencies are inferred from the claim text.