| 摘要 |
An apparatus for reducing engine noise includes a side cover configured to operatively connect to a side of an engine block. The side cover has a first layer configured to be adjacent to an outer surface of the side of the engine block. The first layer is made of a first acoustic-absorbing material. The side cover also has a second layer configured to be adjacent to the first layer opposite the engine block. The second layer is a second substantially rigid material establishing an acoustic barrier and is configured to operatively support at least one engine component such as an electrical or fluid line, such as by an integrally formed fastener or channel.
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