Sound attenuation apparatus and method
US9771868B2 · kind B2 · utility
3Cited by
35References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 21, 2015 |
| Grant date | Sep 26, 2017 |
| Priority date | — |
| Expiry date | Dec 29, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/962
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An aircraft engine sound attenuation apparatus includes a perforated face member, a backing member, a plurality of connecting members coupling the perforated face member to the backing member to form a plurality of channels spanning from the perforated face member to the backing member, and a bulk absorber disposed in each of the plurality of channels, wherein the plurality of channels are connected to an interior portion of an aircraft engine nacelle component so that the plurality of channels are oriented in a direction substantially normal to a direction of fluid flow pressure drop passing through the aircraft engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.