Intake system for an internal combustion engine

摘要

The intake system includes an integrated airflow cooler module comprising a lower manifold assembly and a throttle body fluidly connected to, and disposed within the lower manifold assembly to meter combustion air into a lower manifold volume of the lower manifold assembly. An upper manifold assembly is configured for assembly to the lower manifold assembly to define a manifold volume therebetween and a heat exchanger is disposed in the manifold volume, between the upper manifold assembly and the lower manifold assembly and between a combustion air inlet in the integrated airflow cooler module and the throttle body.

主权项

1. An air intake system for delivering combustion air to a cylinder head of an internal combustion engine, the air intake system including an integrated airflow cooler module comprising:
a lower manifold assembly mountable to the cylinder head, the lower manifold assembly comprising a housing that defines a lower manifold volume therein; an upper manifold assembly comprising a housing that defines an upper manifold volume therein, the upper manifold assembly mounted to the lower manifold assembly to define an enclosed manifold volume therebetween that includes the upper and lower manifold volumes; a throttle body disposed within the enclosed manifold volume between the upper manifold volume and the lower manifold volume; a throttle blade disposed in the throttle body to meter combustion air through the integrated airflow cooler module from the upper manifold volume to the lower manifold volume; a heat exchanger disposed in the upper manifold volume between a combustion air inlet of the integrated airflow cooler module and the throttle body, wherein a combustion air flow path extends from the combustion air inlet into the upper manifold volume, through the heat exchanger and the throttle body and to a cylinder head of the internal combustion engine; and a first seal disposed between the heat exchanger and an inner wall of the upper manifold housing and a second seal disposed between the heat exchanger and an inner wall of the lower manifold housing, to prevent hot combustion air entering the integrated airflow cooler module from bypassing the heat exchanger and entering the throttle body.