Combustion Development of the New International® 6.0L V8 Diesel Engine

Combustion, emissions, and calibration for diesel engine system design

“…However, it is the system analysis engineer's responsibility to optimize the hardware selection. An example of combustion development can be found on Navistar's model year 2004 6.0 L V8 engine (Zhu et al, 2004). A procedure of engine air system design based on combustion/emissions requirements is illustrated in Fig.…”

Effects of exhaust gas recirculation in diesel engines featuring late PCCI type combustion strategies

“…The negative effect of thermal throttling can prevail over the beneficial thermal effect of the increased specific heat [24] in the final determination of the maximum burned gas temperature. Therefore, the utilization of cooled EGR is recommended [6,25] in order to mitigate the negative effect of thermal throttling (if the cooled EGR temperature were the same as that of the fresh air, thermal throttling would not be present) and thus to limit the maximum in-cylinder temperature of the burned gas. The benefits of the cooled EGR strategy augment at high EGR rates, and advantages can also be observed in terms of bsfc and soot control [12].…”

“…However, this EGR layout is only applicable when the upstream pressure of the turbine is sufficiently higher than the boost pressure [1]. An efficient exploitation of the exhaust gas can be obtained by adopting a variable geometry turbine that can effectively provide the desired pressure level upstream of the turbine [23,25]. In these systems, the EGR control is closely related to the variable geometry turbine control [36].…”