Diesel engine manufacturers face a major challenge to meet the standards of stringent emissions of smoke, unburned hydrocarbon, carbon monoxide and oxides of nitrogen coupled with increasing the performance of the engine. Over the years, engineers have tried a number of different techniques to improve the combustion and reduce the pollution levels with considerable success rates. The imperatives for achieving the good thermodynamic performance in internal combustion engine are highlighted by Borman and Ragland [1] and Baukal [2]: