The intake system mainly includes the air filter, intake ducting, the carburetor, and the intake manifold. Some engines have supercharger in the in take system.

进气系统主要包括空气滤清器、进气道、化油器和进气歧管。一些发动机在进气系统中有增压器。

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Four-stroke engines of this type with this same type of intake valve motion but with a supercharger to make up for the loss of power density are known as Miller cycle engines.

四冲程发动机本与此同进气阀运动类型的类型，但以使增压器的功率损耗密度，这些都是为米勒循环发动机众所周知的。

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