Internal combustion engine with a positive displacement supercharger mechanically driven from the engine crankshaft

摘要

A piston-type IC engine is fitted with a mechanically driven displacement supercharger such that the displacement volume of a supercharging chamber for compression of the combustion air is made equal to the maximum requirement of an engine cylinder to be filled. The stroke rate of the supercharger is equal to the ignition rate of the engine and the piston motion of the supercharger bears a given phase relation to the piston motion of the engine in line with the desired supercharging effect, such phase relation preferably being adjustable.