Title:
AUTOMOTIVE TRIM PART FOR SOUND INSULATION AND ABSORPTION
Document Type and Number:
WIPO Patent Application WO/2011/110587
Kind Code:
A1
Abstract:
A sound insulating trim part with at least one area with predominantly sound absorbing characteristics (absorbing area), at least one other area with acoustic mass-spring characteristics (insulating area), characterised in that the mass layer of the insulating area consists of the same porous fibrous layer as the absorbing area, in the insulating area adjusted to a dynamic Young's modulus (Pa) of at least (96-AW-t) with AW area weight (g/m2), and t thickness (mm) of the porous fibrous layer, and at least an impervious thin barrier layer between the porous fibrous layer and the decoupling layer.
Inventors:
BERTOLINI CLAUDIO (IT)
CASTAGNETTI CLAUDIO (CH)
CASTAGNETTI CLAUDIO (CH)
Application Number:
PCT/EP2011/053530
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:
B60R13/08; B32B5/02; B32B7/00; G10K11/168
Foreign References:
| EP0079253A1 | 1983-05-18 | |||
| JP2001310672A | 2001-11-06 | |||
| JP2001347899A | 2001-12-18 | |||
| EP1428656A1 | 2004-06-16 | |||
| US20040150128A1 | 2004-08-05 | |||
| US5922265A | 1999-07-13 |
Other References:
See also references of EP 2544922A1
BERTOLINI ET AL.: "Transfer function based method to identify frequency dependent Young's modulus, Poisson's ratio and damping loss factor of poroelastic materials", SYMPOSIUM ON ACOUSTICS OFPORO-ELASTIC MATERIALS (SAPEM), BRADFORD, 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. 193, no. 1, 1995, pages 129 - 142
BERTOLINI ET AL.: "Transfer function based method to identify frequency dependent Young's modulus, Poisson's ratio and damping loss factor of poroelastic materials", SYMPOSIUM ON ACOUSTICS OFPORO-ELASTIC MATERIALS (SAPEM), BRADFORD, 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. 193, no. 1, 1995, pages 129 - 142
Attorney, Agent or Firm:
VAN ADRICHEM GEISSELER, Johanna (Schlosstalstrasse 43, Winterthur, CH)
Download PDF:
Claims:
Previous Patent: PROCESS FOR DISPOSAL OF HEXACHLORODISILANE-CONTAINING VAPORS
Next Patent: AUTOMOTIVE INSULATING TRIM PART
Next Patent: AUTOMOTIVE INSULATING TRIM PART