公开(公告)号：US20150061174A1

公开(公告)日：2015-03-05

申请号：US14461672

申请日：2014-08-18

Applicant: VOLVO CAR CORPORATION

Inventor： Mikael HOLMSTROM ,  Frederik LINDEN

IPC: F02B77/13 ,  C08J9/228 ,  F02B39/00

CPC classification number: F02B77/13 ,  B29C44/0407 ,  B29C44/0415 ,  B29C44/08 ,  C08J9/228 ,  C08J2201/02 ,  C08J2300/24 ,  C08J2375/04 ,  F02B33/34 ,  F04D29/664

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.

Abstract translation: 用于车辆发动机的增压器系统包括至少部分地围绕增压器的增压器和隔音单元。 隔音单元包括面向增压器的内层，背离增压器的隔音层和其间的芯。 所有三层均由聚氨酯制成，但密度不同。 此外，芯包括用于吸声的开孔结构。