Selection of Charge Air Cooling System for Two-Stroke Cycle Diesel Engines

Air-to-air and air-to-water charge air cooling techniques significantly reduce charge air temperature; improving fuel economy and reducing NOx emission levels and cylinder temperatures of turbocharged two-stroke diesel engines. System selection is influenced by installation constraints, type of application, and cost considerations. Two new methods of charge air cooling as applied to on-highway diesel engines are described. The effects of environmental conditions and load factor on engine coolant and charge air temperature are analyzed.