Honeycomb noise attenuation structure
US5041323A · kind A · utility
110Cited by
7References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 26, 1989 |
| Grant date | Aug 20, 1991 |
| Priority date | — |
| Expiry date | Oct 26, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24331
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A double layer structural honeycomb sandwich noise suppression panel for use in severe environments such as aircraft turbine engine housings. Two honeycomb core sheets having multiple cells transverse to the sheets are sandwiched around and bonded to a septum sheet consisting of a wire cloth sheet alone or bonded to a sheet of perforated material. A thin sheet of impervious material is bonded to one surface of the sandwich and a facing of thin perforated sheet material is bonded to the other sandwich surface. The panel has improved simplicity, structural strength with unusually light weight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.