DIRECT FUEL INJECTION, TWO-VALVE PER CYLINDER PUSHROD VALVETRAIN COMBUSTION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE

摘要

A pushrod valvetrain combustion system assembly for an internal combustion engine includes a two-valve pushrod assembly and a cylinder top that forms a portion of a cylinder head. The cylinder top has a single intake port, a single exhaust port, a spark plug bore, and a fuel injector bore. The pushrod assembly includes an intake valve positioned in the intake port and an exhaust valve positioned in the exhaust port. The intake port and exhaust port are positioned adjacent each other and are positioned along an axis that intersects a center point of each of the ports. The intersecting axis is rotated relative to a centerline of the crankshaft of the engine, providing space for the spark plug bore and fuel injector bore to both be located in the cylinder top on a same side of the intersecting axis.