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Future Diesel Engine Combustion Systems for Low Emissions and High Fuel Economy
Published January 01, 1986 by Yugoslavia Society of Automotive Engineer in Serbia
Future diesel combustion systems will be influenced by emission regulations, the need for improved fuel economy, the deterioration in the quality of diesel fuels and the higher temperature environment of uncooled engines. Diesel combustion models showed that increased swirl and fuel injection pressures reduced smoke and particulate emissions. The effectiveness of modifying combustion system parameters affecting particulate formation and oxidation rates was determined for several experimental combustion systems. Diesel combustion analysis parameters provided insight into the effects of combustion system design changes and fuel modifications. Low cetane fuel increased the amount of fuel burned in the premixed combustion mode, resulting in increased exhaust emissions. The combustion analysis parameters were significantly modified by the uncooled diesel engine, which provided improvements in fuel economy, reductions in exhaust emissions and improved fuel tolerance.