Process and device for the reduction of the few harmful of gprocesso and device for reducing the few harmful exhaust gas in internal combustion engines discharge aces engines combInternal ustao

摘要

The ratio of fuel to air of the air-fuel mixture being applied to internal combustion engines is adjusted such that it is below the stoichiometric value; the composition of the exhaust gases from the internal combustion engine is then sensed before they are discharged in the atmosphere, and additional air is introduced to the exhaust gases before their liberation so that a predetermined optimal relationship with respect to the stoichiometric value is obtained.