| 摘要 |
<p>There is disclosed a noise reduction member (10), used in a noise reduction system, comprising:
a structure of an automotive vehicle (100);
a noise reduction member (10) located within the cavity (96) of the structure, the noise reduction member including:
a carrier member having a first wall (20) and a side wall (24);
a mass of expandable material (30) located adjacent the first wall; and
an attachment (44) attached to the carrier member, the expandable material or both and locating the noise reduction member relative to the structure;
wherein:
the first wall, upon expansion of the mass of expandable material, shields the expandable material from forming a foam material in a space adjacent the structure; and
the mass of expandable material expands to form a foam that occupies a volume that is at least 500% of the volume occupied by the original unexpanded mass of expandable material.
</p> |
