SOUND ISOLATION UNIT AND PRODUCTION METHOD THEREOF
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United States of America Patent
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Mar 5, 2015
app pub date -
Aug 18, 2014
filing date -
Aug 28, 2013
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Abstract
A supercharger system for a vehicle engine comprises a supercharger and a sound isolation unit at least partly surrounding the supercharger. The sound isolation unit comprises an inner layer facing the supercharger, a sound barrier layer facing away from the supercharger and a core there between. All three layers are made from polyurethane but with different densities. Furthermore, the core comprises an open cell structure for sound absorption.
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