US Patent 7331315 Two-stroke engine with fuel injection

A two-stroke internal combustion engine is provided with a fuel injector. The two-stroke internal combustion engine may have at least one transfer passage, an air channel, and a fuel injector. The transfer passage is between a crankcase and a combustion chamber of the engine. The air channel is in gaseous communication with a top portion of the transfer channel. The fuel injector is in gaseous communication with the air channel and injects fuel into the air channel. The two-stroke engine may be used on hand-held, lawn and garden equipment.