Use of ozonation in the exhaust gas recirculation system of ICE

Abstract

Bypassing part of the exhaust gases allows you to change the chemical composition of the fuel-air mixture, reduce the content of free oxygen in the combustion chamber. The efficiency of exhaust gas recirculation is explained by the presence of such components as water vapor and carbon dioxide in them. These substances have a high specific heat capacity, which helps to reduce the flame temperature in the combustion chamber and, accordingly, reduce the amount of nitrogen oxides in the exhaust gases. The use of up to 10% gas recirculation makes it possible to reduce the content of nitrogen oxides by approximately 30% without a noticeable increase in fuel consumption, although the smoke level increases slightly (by 5-10%).