“…Early design guidelines for low-emission diesel engine design are summarized by Gill (1988). The technical trends of diesel engine designs to meet emission regulations are discussed by Mori (1997), Khair (1997), Browning (1997), Dexter and Kling (1999), Hountalas (2000), Walsh (1999Walsh ( , 2001, Moser et al (2001), Wuensche et al (2003), Pfeifer et al (2003), Leet et al (2004), Advanced diesel engine combustion (e.g., low-temperature combustion, Yun and ) is being actively developed in order to reduce the engine-out emissions. It will have a direct impact on the emissions recipes required for the system design.…”