Direct injection engine

The internal combustion engine has an injector (40) to inject fuel directly into the combustion chamber (16) of the working cylinders (14). At least one inlet valve (20) is provided per cylinder and has valve stem sealing constructed in such a way that it has an oil penetrability of less than 0.003 g/h. The piston ring packet is constructed in such a way that oil guided back into the combustion chamber has a value of less than 3 g/h per working cylinder at nominal speed.