目前商用车柴油机实现国Ⅲ排放的主要技术及其产品产能

Major technologies of current commercial vehicle diesel engines to reach the National Standard Ⅲ and its product performance

国家环保总局规定，自2008年7月1日起，全国范围内正式停止国Ⅱ标准的中、重型商用车的销售与注册登记工作，这意味着我国商用车行业已迎来国Ⅲ时代。然而，在以“电控高压共轨、单体泵、泵喷嘴”为代表的主流常规技术被众多专家普遍认为是国Ⅲ商用车标志的大背景之下．除去拥有常规技术产品之外，中国重汽的大部分产品还采用了被一些专家质疑的“电控直列泵＋EGR”的非常规技术．从而在行业内掀起巨浪。

The Ministry of Environment issued that the middle and heavy commercial vehicles should stop being sold and registered in the nation wide from July 1, 2008, which means that the commercial vehicle industry has entered into an era of National Standard Ⅲ. Electronic-controlled high-pressure common rail, single-cylinder injection pump, and pump nozzles are considered as the key technologies of commercial vehicles of National Standard Ⅲ. However, most of heavy vehicles in China adopt some uncommon technologies like electronic control in- line pump+EGR, which receives controversial comments within the industry.