Coating for acoustic treatment that integrates the function of hot-air treatment of frost
US8172037B2 · kind B2 · utility
6Cited by
5References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2008 |
| Grant date | May 8, 2012 |
| Priority date | — |
| Expiry date | May 22, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64D2033/0286
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The invention relates to a coating for acoustic treatment at the surface of an aircraft, in particular at the leading edge such as the air intake of an aircraft nacelle, said coating including an acoustically resistive layer (28), at least one cellular structure (30) and a reflective layer (32), characterized in that it comprises ducts (34) provided between said cellular structure (30) and the acoustically resistive structure (28), the ducts being each defined by a wall (36) separate from the walls of the cellular structure (30) and one end of the ducts being connected to a hot air supply.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.