Lubrication system for direct injected engine

摘要

A lubrication system for a direct injected two-cycle engine is disclosed having a lubricant pump adapted to discharge lubricant into each crankcase chamber of the engine through a port positioned immediately adjacent the downstream side of reed valves of the air intake system. The lubricant is injected in a direction generally coincident with the rotational direction of the crankshaft. Drain ports are positioned in the lowermost scavenge passage of each cylinder and communicate lubricant from the scavenge passage to a return port formed through the wall of a crankcase chamber.