Two-stroke internal combustion engine has freely adjustable opening and closing time point for gas changing valve for closing fresh gas inlet opening in cylinder head

摘要

The engine has at least one combustion chamber (2) with at least one fresh gas inlet opening (3,3') in the cylinder head and at least one gas outlet opening in the base of the cylinder. The inlet opening can be closed by a gas changing valve (6,6'), interacts with a charging pump and injects fuel directly into the combustion chamber. The opening and closing time point for the gas changing valve can be freely adjusted.