In-cylinder injection type spark ignition internal combustion engine

摘要

In an SOHC type internal combustion engine having a single camshaft (30), a fuel injector (22) is provided for directly injecting a fuel into a combustion chamber (20), and an intake port (44) is provided such that one end of the intake port is open at intake openings (40) to the combustion chamber. The intake port extends toward the top face of a cylinder head (4) between the camshaft and two intake valves (50), such that at least a part of the intake port passes through a region between the shortest lines connecting respective head portions of the intake valves and the camshaft.