Panel assembly with noise attenuation system having a geometric pattern for air gap acoustic impedance
US9630576B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2015 |
| Grant date | Apr 25, 2017 |
| Priority date | — |
| Expiry date | Dec 7, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R13/0815
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A panel assembly includes a first panel and noise attenuation panel that is attached to the first panel. The noise attenuation panel includes a central portion having a length and a width. The central portion of the noise attenuation panel is spaced from the surface of the first panel by a gap distance to form a gas chamber between the surface of the first panel and the central portion of the noise attenuation panel. The panel assembly includes at least one wall structure that is disposed within the gas chamber. The wall structure extends between the central portion of the noise attenuation panel and the surface of the first panel, and includes a pattern that defines a fluid flow path through the gas chamber, which includes an effective length that is greater than both the length and the width of the central portion of the noise attenuation panel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.