Acoustic attenuation panel for aircraft for engine nacelle
US8899512B2 · kind B2 · utility
14Cited by
11References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 28, 2009 |
| Grant date | Dec 2, 2014 |
| Priority date | — |
| Expiry date | Nov 24, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An aircraft turbojet engine air intake structure includes an air intake lip provided with a first acoustic attenuation panel which contains a structuring skin and, as an acoustic absorption material, a porous material fastened on the skin. The air intake structure also includes a pneumatic de-icing compartment defined by the lip and by an inner partition. The first acoustic attenuation panel is of the type including an open-cell porous material which is capable of resisting a temperature of up to 200° C. and having high heat conductivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.