Improving special motor vehicle internal combustion engines to raise environmental safety

The paper presents the results of theoretical and experimental studies of the environmental characteristics of internal combustion engines for commercial and public motor vehicles operating on the Diesel cycle using a hydrogen additive. An analysis of literary sources confirmed that there are different data on harmful emissions when using a hydrogen additive for internal combustion engines operating on the Diesel cycle. The results of theoretical and experimental studies of the environmental characteristics of internal combustion engines for commercial and public motor vehicles operating on the Diesel cycle using a hydrogen additive suggest the adequacy of the built model, since the error between the theoretical and experimental data did not exceed 14.5%. It was found that the concentration of NOx emissions in an internal combustion engine using a hydrogen additive operating on the Diesel cycle decreased by 52%. The above research results confirm the prospects for the use of hydrogen additive for internal combustion engines operating on the Diesel cycle, which was first used for commercial and municipal motor vehicles. It guarantees improved environmental safety in urban agglomerations.