Aircraft with cabin acoustic systems having quarter wavelength absorbers
US10399662B2 · kind B2 · utility
1Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2016 |
| Grant date | Sep 3, 2019 |
| Priority date | — |
| Expiry date | Dec 17, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K11/172
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An aircraft includes a fuselage, a cabin surface, and a first chamber. The cabin surface is disposed within the fuselage and defines a first aperture and at least part of a cabin air mass having a first acoustic mode. The first chamber is acoustically coupled with the aperture and has a length that is one quarter of a wavelength of sound at the first acoustic mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.