一款小型气道喷射汽油发动机降油耗措施的研究  

Research of Fuel Consumption Reduction Measurement of a Minitype Port-injection Gasoline Engine

作　　者：龙悦[1] 周岳康[1] 程传辉[1] 张庆峰[1] 

机构地区：[1]上海汽车集团股份有限公司技术中心,上海201804

出　　处：《上海汽车》2014年第9期20-23,共4页Shanghai Auto

摘　　要：在一款1.5 L气道喷射汽油发动机上开展增加排气调相和进一步减摩擦对降油耗影响的研究分析。试验结果表明,通过增加排气调相器,减小活塞环弹力,改进活塞、活塞环和挺柱涂层,降低机油泵排量,同时采用低弹力气门弹簧等对降低发动机比油耗有显著作用。搭载到一款A级车上的整车NEDC循环油耗降幅超过了5%。Investigation of exhaust timing and friction reduction on the fuel consumption is done on a 1.5L Port-injection gasoline engine. Test result shows that it is remarkable on reducing fuel consumption by introduction of exhaust VCT, lower force piston rings, coatings of piston and piston rings, lower volume oil pump and lower force valve spring. Applied on an A class vehicle, NEDC fuel consumption is reduced more than 5%.

关 键 词：汽油机 汽车 排气调相 减摩 降油耗 

分 类 号：U464[机械工程—车辆工程] U471.23[交通运输工程—载运工具运用工程]