Patent · US Active

Automotive insulating trim part

US8256572B2 · kind B2 · utility

11Cited by

10References

23Claims

0Family size

Assignee

AUTONEUM MANAGEMENT AG · CH

Inventors

Claudio Castagnetti · Stallikon, CH
Claudio Bertolini · Sankt Moritz, CH

Key dates

Filing date	Mar 9, 2011
Grant date	Sep 4, 2012
Priority date	—
Expiry date	Mar 9, 2031

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.