Title:
AUTOMOTIVE INSULATING TRIM PART
Document Type and Number:
WIPO Patent Application WO/2011/110588
Kind Code:
A1
Abstract:
A sound insulating trim part with acoustic mass-spring characteristics with a mass layer and a decoupling layer, wherein the mass layer consist of a porous fibrous layer (1 ) and an impervious thin barrier layer (2), whereby the impervious thin barrier layer is between the porous fibrous layer and the decoupling layer (3) and all layers are laminated together, and whereby the porous fibrous layer has a dynamic Young's modulus (Pa) of at least (96-AW-t) with AW being an area weight (g/m2), and t being a thickness (mm) of the porous fibrous layer.
Inventors:
BERTOLINI CLAUDIO (IT)
CASTAGNETTI CLAUDIO (CH)
CASTAGNETTI CLAUDIO (CH)
Application Number:
PCT/EP2011/053531
Publication Date:
September 15, 2011
Filing Date:
March 09, 2011
Export Citation:
Assignee:
RIETER TECHNOLOGIES AG (CH)
BERTOLINI CLAUDIO (IT)
CASTAGNETTI CLAUDIO (CH)
BERTOLINI CLAUDIO (IT)
CASTAGNETTI CLAUDIO (CH)
International Classes:
G10K11/168; B60R13/08
Domestic Patent References:
| WO2006007275A1 | 2006-01-19 |
Foreign References:
| EP2159786A1 | 2010-03-03 | |||
| FR2908550A1 | 2008-05-16 | |||
| US6145617A | 2000-11-14 | |||
| US20080073146A1 | 2008-03-27 | |||
| US20060113146A1 | 2006-06-01 | |||
| JP2001310672A | 2001-11-06 | |||
| JP2001347899A | 2001-12-18 | |||
| EP1428656A1 | 2004-06-16 | |||
| US20040150128A1 | 2004-08-05 | |||
| US5922265A | 1999-07-13 |
Other References:
SYMPOSIUM ON ACOUSTICS OFPORO-ELASTIC MATERIALS, December 2008 (2008-12-01)
LANGLOIS ET AL.: "Polynomial relations for quasi-static mechanical characterization of isotropic poroelastic materials", J. 4COUS//CA/ SOC. AM., vol. 10, no. 6, 2001, pages 3032 - 3040, XP003031365, DOI: doi:10.1121/1.1419091
BROUARD B. ET AL.: "A general method for modelling sound propagation in layered media", JOURNAL OF SOUND AND VIBRATION, vol. 1.193, no. 1, 1995, pages 129 - 142
LANGLOIS ET AL.: "Polynomial relations for quasi-static mechanical characterization of isotropic poroelastic materials", J. 4COUS//CA/ SOC. AM., vol. 10, no. 6, 2001, pages 3032 - 3040, XP003031365, DOI: doi:10.1121/1.1419091
BROUARD B. ET AL.: "A general method for modelling sound propagation in layered media", JOURNAL OF SOUND AND VIBRATION, vol. 1.193, no. 1, 1995, pages 129 - 142
Attorney, Agent or Firm:
RIETER TECHNOLOGIES AG (Winterthur, CH)
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Claims: