FOUR-CYCLE ENGINE LUBRICATED WITH MIXED FUEL

摘要

PROBLEM TO BE SOLVED: To provide a four-cycle engine suitable to the application in which an engine can receive a large inclined angle or rotation, especially the use with handheld power machinery. SOLUTION: The four-cycle engine includes a piston cylinder and a movable piston positioned in the cylinder. The four-cycle engine includes a crank case attached to the cylinder partitioned from the part of a combustion chamber of the cylinder by the piston, and a crank member operatably connected to the piston. The engine includes a member operating the four-cycle engine by one round of the four-cycle, and a member introducing a mixed fuel having lubricating action to the part of the combustion of the cylinder. The engine includes the structure and/or constitution which promotes the movement of the part of the mixed fuel and moves sufficient amount of the mixed fuel to lubricate the crank case from the part of the combustion of the cylinder to the crank case without installing the lubrication oil reservoir in the crank case. COPYRIGHT: (C)2005,JPO&NCIPI