Automotive insulating trim part
US8636105B2 · kind B2 · utility
6Cited by
15References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 2, 2012 |
| Grant date | Jan 28, 2014 |
| Priority date | — |
| Expiry date | Aug 2, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R13/0815
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A sound insulating trim part with acoustic mass-spring characteristics is provided. The sound insulating trim part includes a mass layer and a decoupling layer. The mass layer includes a porous fibrous layer with a dynamic Young's modulus E of at least about 96·AW·t (Pa), with AW being an area weight (g/m2), and t being a thickness (mm) of the porous fibrous layer. The mass layer also includes an air impervious thin barrier layer. The barrier layer is disposed between the porous fibrous layer and the decoupling layer. The barrier layer, the porous fibrous layer, and the decoupling layers are laminated together.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.