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国内一些企业已能生产出符合国V标准的天然气发动机,与传统燃油发动机相比,具有很好的减排效果。但是,人们还是要问:经过改装的传统发动机也能达标,“油改气”有必要吗?其经济性好吗?安全性有保障吗?使用方便吗?油改气能省多少?张家港首创清洁能源汽车应用有限公司总工程师王峰以他们公司研发的天然气发动机为例,算了一笔账:如果一位内蒙古或新疆的运煤司机,每年用载重卡车拉煤需要的柴油费为30万至40万元,改为天然气发动机后,每年起码能节约10万元燃料费,节约比例达到30%左右,而10万元的改装成
Some domestic enterprises have been able to produce natural gas engines in line with the national V standard, compared with the traditional fuel-efficient engines, with good emission reduction. However, people still have to ask: the modified traditional engine can be achieved, “oil to gas ” is necessary? Its economy is good? Security is safe? Easy to use? Zhang Feng, chief engineer of Zhangjiagang Clean Energy Automotive Applications Co., Ltd. took the natural gas engine developed by their company as an example. If a coal transportation driver in Inner Mongolia or Xinjiang takes the diesel fuel required for pulling coal with a truck every year, Million to 40 million, to natural gas engines, the annual savings of 100,000 yuan at least fuel costs, the proportion of saving up to 30%, and 10 million converted into