Sound attenuation panel comprising a resistive layer with reinforced structural component
US7484592B2 · kind B2 · utility
28Cited by
12References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2002 |
| Grant date | Feb 3, 2009 |
| Priority date | — |
| Expiry date | Jul 14, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K11/168
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A sound attenuation panel includes a resistive layer with a reinforced structural component, comprising at least a honeycomb structure (1) flanked, on one side, with a resistive layer (2) consisting of at least a porous layer (2b) and of at least a perforated structural layer (2a), and, on the other side, with a layer forming a total reflector (3). The structural layer (2a) is perforated with non-circular holes (4) having each its largest dimension and its smallest dimension along respectively two perpendicular axes. The panel is particularly applicable to pods for aeroplane jet engines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.