AN INITIAL INVESTIGATION OF THE LUBRICANT CONDITION IN THE AUTOMOTIVE RING ZONE UNDER COLD START CONDITIONS

机译：在冷启动条件下汽车环带润滑剂条件的初步研究

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Samples of lubricant obtained from the piston ring of a petrol engine under cold start conditions are very different from the sump lubricant condition. Samples from the first operating hour show substantial fuel and water dilution which cause precipitation of additive from the lubrication formulation with multiple phase formation. The physical performance properties of these lubricant samples are drastically changed, e.g., Base Number drops from 10 to less than 2, anti-oxidancy is reduced and viscometric properties are changed. Implications for short vehicle journeys and temperature distributions within the piston assembly are discussed.

机译：从汽油发动机的活塞环在冷启动条件下获得的润滑剂样品与油底壳润滑剂条件有很大不同。第一个运行小时的样品显示出大量的燃料和水稀释，这导致添加剂从润滑配方中沉淀出来并形成多相。这些润滑剂样品的物理性能发生了巨大的变化，例如，基数从10下降到小于2，抗氧化性降低，粘度特性发生了变化。讨论了短行程和活塞组件内温度分布的含义。

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来源
《29th Leeds-Lyon Symposium on Tribology Sep 3-6, 2002 University of Leeds, UK》|2002年|p.517-522|共6页
会议地点 Leeds(GB)
作者
Asif N G Datoo; Malcolm F Fox;
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作者单位

Lubricant Research Centre, School of Molecular Sciences, De Montfort University, Leicester LE1 9BH, UK;

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原文格式 PDF
正文语种 eng
中图分类机械、仪表工业;
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AN INITIAL INVESTIGATION OF THE LUBRICANT CONDITION IN THE AUTOMOTIVE RING ZONE UNDER COLD START CONDITIONS

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