SPARK-IGNITION AIR-COMPRESSING INTERNAL COMBUSTION ENGINE

摘要

A b s t r a c t This invention relates to a spark-ignition air-compressing internal combustion engine having a combustion chamber in shape of a solid of revolution with a constricted opening in the piston crown where the injection nozzle is located in the cylinder head near the edge of the combustion chamber and the spark plug opposite the injection nozzle plunging into the combustion chamber at the top dead centre position of the piston and mixture formation is prevailingly by depositing the fuel on the combustion chamber wall. In such an internal combustion engine, it is desired in applying the concept to a supercharged engine to satisfy the enhanced requirements with respect to mixture formation reliably in all ranges of operation whereby a further improvement of ignition stability is also to be provided. The is essentially achieved by the special shape and proportioning of the combustion chamber.