Injection timing and cone angle behavior on a heavy duty diesel engine

In this paper the three dimensional computational fluid dynamics (CFD) analysis have been used to improve understanding of the formation of soot and NO during combustion in a heavy duty diesel engine. Six injection strategies were used as follows: start of injection at 10, 13 and 16 degree before top dead center (BTDC) and injection with cone angle of 16, 12 and 8 degree. The comparison between the injection strategies like rate of heat release pressure and temperature was investigated. The principal results show significant differences in soot and NO generation during combustion between these deferent strategies.