SOUND INSULATOR FOR THE PASSENGER COMPARTMENT OF A MOTOR VEHICLE

WIPO Patent Application WO2006015707

A3

The invention relates to a sound insulator for a motor vehicle passenger compartment. The aim of said invention is to develop a sound insulator which makes it possible to obtain an improved damping effect within a frequency range less than 300 Hz. In that respect, said invention relates to a sound insulator for a motor vehicle passenger compartment, which comprises an air cushion consisting of an dampingly active envelop which is made of an elastic material and disposed between a sound-generating component and the compartment internal space. Said invention is characterised in that it provides for a sound damping layer (25) which matches the shape of said component (13), acts as a spring material system and is covered on the compartment side by a solid foil (26), thereby forming the first envelop of the air cushion (29). The invention also provides for the second envelop of the air cushion (29) which is tightly connected to said solid foil (26), consists of an elastic, preferably pre-shaped, film (27) which forms the cushion air between the first and second envelops.

AUGELE HANS-PETER (DE)
BAUER ACHIM (DE)
BUSCH INGO (DE)
CLAAR KLAUS-PETER (DE)
HARLOFF BERND (DE)
KOELLE GUENTER (DE)
KOENIG TORSTEN (DE)
NEIS MICHAEL (DE)
SCHEIBLE KARL (DE)

PCT/EP2005/008024

March 16, 2006

July 22, 2005

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DAIMLER CHRYSLER AG (DE)
AUGELE HANS-PETER (DE)
BAUER ACHIM (DE)
BUSCH INGO (DE)
CLAAR KLAUS-PETER (DE)
HARLOFF BERND (DE)
KOELLE GUENTER (DE)
KOENIG TORSTEN (DE)
NEIS MICHAEL (DE)
SCHEIBLE KARL (DE)

G10K11/168; B60R13/08

DE7929637U1	1980-01-24
DE20101406U1	2001-05-17
DE4033402A1	1992-04-23

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