期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
利用四球机考察含烟炱柴油机油的抗磨损性能 被引量:6
1
作者 雷爱莲 谢惊春 +2 位作者 徐小红 王爱香 夏群英 《润滑油》 CAS 2012年第5期16-19,共4页
高档柴油机油研发中,烟炱引起的磨损是要解决的关键问题之一。该研究采用炭黑作为烟炱模拟物,加入试验油获得了被烟炱污染的柴油机油,以模拟实际发动机试验过程中产生的含烟炱油。并且利用四球磨损试验机为平台,研究建立了模拟试验方法... 高档柴油机油研发中,烟炱引起的磨损是要解决的关键问题之一。该研究采用炭黑作为烟炱模拟物,加入试验油获得了被烟炱污染的柴油机油,以模拟实际发动机试验过程中产生的含烟炱油。并且利用四球磨损试验机为平台,研究建立了模拟试验方法,考察了含烟炱柴油机油的抗磨损性能。结果表明:方法能够有效区分含烟炱柴油机油的抗磨损性能,对不同类型分散剂和黏度指数改进剂在含烟炱柴油机油中的抗磨损性能具有较好的区分性,试验方法有较好的重复性,可以帮助高档柴油机油的研发。 展开更多
关键词 柴油机油 抗磨损性能 模拟试验
下载PDF
The Effects of Fuels and Lubricants on Low-Speed Pre-Ignition in Gasoline SI Engines
2
作者 Eric LIU 《润滑油》 CAS 2012年第5期8-15,共8页
With the onset of downsized and highly-boosted engines,engine designers are encountering a new combustion phenomenon,called low-speed pre-ignition(LSPI) or superknock,which occurs when the engine operates under a low-... With the onset of downsized and highly-boosted engines,engine designers are encountering a new combustion phenomenon,called low-speed pre-ignition(LSPI) or superknock,which occurs when the engine operates under a low-speed,high-load conditions.LSPI events cause large spikes in cylinder pressure that can easily exceed the design limits of the engine.Therefore,it is important for the automotive industry to understand how LSPI events occur and develop a solution that can either eliminate it or detect and mitigate its effects.This paper summarizes the existing work that has been conducted on the subject of LSPI.Much of the research work presented hypothesizes that physical and chemical interactions and accumulation of fuels and lubricants in the piston top land crevice volume affect the frequency of LPSI events.Therefore,it may be possible to formulate fuels and lubricants that can mitigate or eliminate the occurrence of LPSI. 展开更多
关键词 柴油机油 抗磨损性能 模拟试验 润滑
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部