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Title:
SOUNDPROOF THERMAL SHIELD
Document Type and Number:
WIPO Patent Application WO2004045843
Kind Code:
A3
Abstract:
The invention relates to a soundproof thermal shield (3), particularly for motor vehicles, comprising an aluminum support (4), a noise-absorbing layer (6), and an aluminum thermal covering (7). In order to make the inventive soundproof thermal shield easy to recycle while obtaining a great thermal shielding effect and noise-absorbing power, a permeable mat made of knitted aluminum is used as a noise-absorbing layer (6), said knitted aluminum being superimposed in several layers and pressed so as to form the permeable mat. The inventive thermal shield is thus made of a single material. Preferably, the support (4) is made of a microperforated aluminum sheet while the thermal covering (7) is preferably made from an aluminum film.

Inventors:
BERBNER JUERGEN (DE)
PIRCHL CHRISTOPH (LI)
GNAEDIG CHRISTIAN (DE)
Application Number:
EP0312577W
Publication Date:
July 29, 2004
Filing Date:
November 11, 2003
Export Citation:
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Assignee:
CARCOUSTICS TECH CT GMBH (DE)
BERBNER JUERGEN (DE)
PIRCHL CHRISTOPH (LI)
GNAEDIG CHRISTIAN (DE)
International Classes:
B22F3/00; B32B15/01; B32B15/02; B32B15/20; F01N13/14; F02B77/13; F16L59/08; G10K11/162; (IPC1-7): B32B15/01; B32B15/02; B32B15/20; B32B33/00; F02B77/13; F16L59/02; F16L59/08; G10K11/162
Foreign References:
EP0486427A11992-05-20
DE9107484U11991-08-29
DE8900894U11990-05-31
EP1059159A22000-12-13
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