The paper presents gas engine upgrade technologies that all internal suppliers of vehicle s petrol engine will consider to meet the strict law and regulations,which will come into force as of January a,2008,on fuel consumption at second stage for passenger cars.
阐述了国内各车用汽油机制造厂商为满足国家乘用车新产品第二阶段燃油经济性法规的要求,最可能优先采用的对现有产品进行技术改造的方案,并展望了远期的发展趋势。