LNG与柴油公交客车机油使用特性研究  

Research on Operating Characteristic of LNG and Diesel Engine Bus

作　　者：黄文伟[1,2] 孟凡生[2] 张强[2] 

机构地区：[1]北京交通大学 [2]深圳职业技术学院

出　　处：《汽车技术》2011年第12期44-47,共4页Automobile Technology

基　　金：广东省科技计划项目(项目编号为2008B010400040)

摘　　要：针对深圳市城市公交客车的机油使用特性进行研究,对燃用LNG与柴油2种不同燃料的发动机进行对比试验,对试验车辆所使用的新机油、更换时的机油进行检测,并对其主要特性参数包括运动黏度变化率(100℃)、闪点(闭口)、碱值下降率、正戊烷不溶物、水分、铁含量、铜含量、铝含量、硅含量等项目进行分析。根据分析结果给出了LNG、柴油公交客车机油更换周期建议,以指导公交客车选用合适的机油以延长机油使用寿命。The paper makes research on oil operating characteristics of city bus of Shenzhen, and comparative tests are conducted between LNG bus and diesel engine bus with new type oil, in the experimental period changed oil was sampled and investigated and analysis on parameters of oil quality was made, including variation ratio of kinematic viscosity （100 %）, Flash-point （End-point）, Dropping ratio of base number, Added value of acid number, water content, Fe, Cu and A1 Content, Si content etc. Based on above testing and analysis reasonable oil change period is concluded for LNG and diesel engine bus and suggestions about current bus maintenance conditions is given including oil selection and duration life extending.

关 键 词：LNG发动机 柴油机 机油 更换周期 

分 类 号：U464.137[机械工程—车辆工程]