载货汽车向着高速、大吨位的方向发展,从而对动力的要求也就越来越高。目前,重型载货汽车对柴油机的功率要求大约是184～368 kW(250～500ps),并且要兼顾排放、油耗、成本等因素。为了满足上述要求,欧洲各重型货车生产企业纷纷推出载货汽车用柴油机系列(见表1)。从表中可以看出, Truck to the high-speed, large-tonnage direction, so the power requirements are getting higher and higher. At present, the heavy duty truck diesel engine power requirements of about 184 ~ 368 kW (250 ~ 500ps), and to take into account emissions, fuel consumption, cost and other factors. In order to meet the above requirements, various heavy truck manufacturers in Europe have launched a series of diesel engines for trucks (see Table 1). As can be seen from the table,