INTERNAL COMBUSTION ENGINE WITH EXHAUST CLEANING MEANS

摘要

In an internal combustion engine including an exhaust cleaning catalytic converter and a mixture control system for controlling the air-to-fuel ratio of the combustible mixture toward a certain value enabling the catalytic converter to produce its maximum exhaust cleaning performance, a device is provided for forcibly evaporating the mixture in the intake manifold of the engine so as to reduce the difference between the time at which a mixture is produced in the mixture supply system of the engine and the time at which the air-to-fuel ratio of the mixture is monitored in the exhaust system.