Air induction system for engine

摘要

An engine includes an engine body and an air induction system. The engine body has a cylinder block that defines cylinder bores. Pistons are reciprocally disposed within the respective cylinder bores. A cylinder head member closes the respective cylinder bore to define combustion chambers together with the cylinder bores and the pistons. The air induction system is arranged to supply air to the combustion chambers. The air induction system includes intake conduits that communicate with the combustion chambers. Inlet conduits communicate with the intake conduits and extend along the intake conduits to provide a sufficiently long air intake to improve the torque characteristics of the engine. In one preferred outboard marine embodiment, this longer air intake does not require any increase in the size of the engine cowling.