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汽车安全与节能学报

JASE ›› 2017, Vol. 08 ›› Issue (03): 296-392.DOI: 10.3969/j.issn.1674-8484.2017.03.010

• 汽车节能与环保 • 上一篇    下一篇

润滑油特性对柴油机颗粒排放性能影响的试验研究

张武高，王志宇，田 强，高 深   

  1. 上海交通大学 动力机械与工程教育部重点实验室，上海 200240，中国
  • 收稿日期:2017-04-24 出版日期:2017-09-28 发布日期:2017-10-03
  • 作者简介:第一作者 / First author ： 张武高(1969—），男（汉），湖北，副教授，E-mail: zhangwg@sjtu.edu.cn。 第二作者 / Second author ： 王志宇(1987—)，男（汉），吉林，硕士研究生，E-mail: zhiyuqwert@163.com。
  • 基金资助:

    国家自然科学基金资助项目(51376118) ；汽车安全与节能国家重点实验室开放基金资助项目(KF14021)。

Experimental study on influence of physical properties of lubricating oils on particle emissions of diesel engine

ZHANG Wugao, WANG Zhiyu, TIAN Qiang, GAO Shen   

  1. Key Laboratory for Power Machinery and Engineering of Ministry of Education, Shanghai Jiao Tong University, Shanghai 200240, China
  • Received:2017-04-24 Online:2017-09-28 Published:2017-10-03

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摘要：

用台架试验法研究润滑油特性对柴油机颗粒排放特性的影响。在一台云内动力雷默D19TCI增压中冷高速柴油机上，利用专门配制的6 种不同润滑油，考察了润滑油的基础油特性、蒸发损失率以及润滑油温度和发动机负荷等运转参数对柴油机颗粒排放的影响。结果表明：润滑油的灰分含量越低，总体颗粒排放量越少；降低润滑油的蒸发损失率，能使粒径为300 nm 以上润滑油级颗粒排放减少56%；与第Ⅱ类基础油CI4 相比，加氢精制油能减少发动机8.7%~20.4%的颗粒排放数浓度，合成油PAO 在高油温高负荷条件下具有最佳的颗粒减排性能；采用较低的润滑油温度有利于降低发动机低负荷工况下的润滑油级颗粒排放；发动机负荷增加，润滑油级颗粒排放大幅增加，但总体颗粒排放峰值降低57.9%。

关键词: 柴油机, 颗粒排放, 润滑油物性, 润滑油温度

Abstract:

The effect of lubricating oils on diesel particle emissions was investigated by the experiments in a production engine D19TCI produced by Kunming Yunnei Power mounted on a bench test dynamometer with six different lubricating oils. The effect of evaporation loss rate, lubricant temperature and engine load were
analyzed. The results show that low ash lube causes an outstanding decrease on total particle emissions, oils with low rate of evaporation loss can cut down the lube-level particles (over 300 nm) emission by 56%. Hydrofining oil reduces exhaust particle number concentration more significantly than base oil ⅡCI4 by
8.7% - 20.4%. Synthetic oil PAO has the best particle emission reduction performance at high load. Lube-level particle emissions decline with a lower lubricant temperature at low load, and lube-level particle emissions increase at heavy load while total particle emissions decrease by 57.9%.

Key words: diesel engine, particular emissions, characteristics of lubricants, temperature of lubricant