초록

A two- or four-stroke internal combustion engine is provided having individual features and combinations of features not heretofore known which provide enhanced power, efficiency and braking performance compared to known engines.

대표청구항 ▼

An improved internal combustion engine having pistons, cylinders forming combustion chambers, intake and exhaust valves, and having means for injecting a combustion fuel and introducing air into the cylinders, means for igniting the fuel and air mixture in the cylinders and means for exhaustng gases

An improved internal combustion engine having pistons, cylinders forming combustion chambers, intake and exhaust valves, and having means for injecting a combustion fuel and introducing air into the cylinders, means for igniting the fuel and air mixture in the cylinders and means for exhaustng gases from the cylinders following combustion, the improvement comprising continuously adjustable intake and exhaust valve control means, adjustable on demand, which provides a variable air charge and compression ratio coupled with a fixed, high expansion ratio, said expansion ratio being at least 17:1, and means for metering said combustion fuel injected into the combustion chamber just before the end of compression to stoichiometric proportions to match the air charge at all engine loads.