Laser particle sizing of diesel soots in two formulated oils after different engine tests

Tribotest Pub Date : 1994-12-01 DOI:10.1002/TT.3020010203
B. Constans, P. Bezot
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引用次数: 3

Abstract

Soots of four types were extracted from two different formulated diesel oils, namely oil ‘A’, a 15W40, and oil ‘B’, a 20W40, after engine (50 h) and tribological (20 h + 20 h) tests. The soots were dispersed into four different model solvents and base oils, and analysed by Photon Correlation Technique. In a first study, soot particle size measurements were conducted after dilution in n-heptane, Kerdane solvent, 60N and 130N base oils. The influences of engine running-time and solvent nature have been particularly considered. The second study has been devoted to the aggregation kinetic of soots in these solvents. These data are important for a better understanding of soot dispersion stability and the rheology of used oils in diesel engines.
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在不同发动机试验后,两种配方油中柴油烟灰的激光粒度测定
通过发动机试验(50 h)和摩擦学试验(20 h + 20 h),从15W40和20W40两种不同配方的A油和B油中提取四种类型的油烟。将烟灰分散到四种不同的模型溶剂和基础油中,用光子相关技术对其进行分析。在第一项研究中,在正庚烷、Kerdane溶剂、60N和130N基础油中稀释后,测量了煤烟的粒径。特别考虑了发动机运行时间和溶剂性质的影响。第二项研究致力于研究烟灰在这些溶剂中的聚集动力学。这些数据对于更好地了解柴油发动机中油烟分散稳定性和废油的流变性具有重要意义。
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A method of measuring ‘zero‐wear’ of the cylinder liner Laboratories at work: Tribotechnology for mining applications at the technical university of Silesia Open‐gear lubrication: Meeting industrial requirements using laboratory techniques Thermomechanical wear modelling Development of the PSA TU‐3 test for valve train scuffing wear
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