INTERNAL COMBUSTION ENGINE HAVING BLOW-BY GAS RECIRCULATION SYSTEM, INCLUDING ENGINE BODY INCLUDING CYLINDER HEAD AND CYLINDER HEAD COVER

摘要

PURPOSE: An internal combustion engine having a blow-by gas recirculation system is provided to efficiently prevent blow-by gas from being frozen over while a vehicle travels in a cold area. CONSTITUTION: An internal combustion engine having a blow-by gas recirculation system(S) comprises an engine body including a cylinder head having suction ports(7), and a cylinder head cover(4); fuel injection device valves(12) each arranged toward the suction ports; a suction manifold(11) installed to the side of the cylinder head; and the blow-by gas recirculation system for supplying blow-by gas introduced from the outside of the cylinder head cover to each cylinder of the engine body through a suction system. The suction manifold is bent outward to define a space between the suction manifold and the cylinder head. The blow-by gas recirculation system includes a blow-by gas line(15) extending to the suction ports from the cylinder head cover. The blow-by gas line is received in the space defined between the suction manifold and the cylinder head.