高海拔环境下燃料不完全燃烧对柴油机油清净性的影响  

Impact of Fuel Incomplete Combustion on Detergency of Diesel Engine Oil at High Altitude

作　　者：刘坪[1] 江泽琦 吴江[1] 方建华[1] 

机构地区：[1]后勤工程学院军事油料应用与管理工程系,重庆401311

出　　处：《后勤工程学院学报》2015年第5期36-40,共5页Journal of Logistical Engineering University

基　　金：后勤工程学院青年科研基金资助(YQ14-420601)

摘　　要：采用曲轴箱模拟试验方法,以正己酸、二叔丁基过氧化物和己醛作为高海拔环境下柴油机燃料不完全燃烧的模型产物,通过对高温沉积物生成量的测定以及分布和颜色的综合评级,研究了3种含氧化合物对CF-4柴油机油高温清净性的影响。结果表明:3种含氧化合物对CF-4柴油机油的高温清净性均有较大程度的不良影响,其中正己酸的影响最大,二叔丁基过氧化物次之,己醛最小。正己酸对清净性的影响呈现出随其质量分数增加,沉积物生成量增加、颜色变深、等级提高的变化趋势;二叔丁基过氧化物和己醛对清净性的影响均呈现出随二者质量分数增加,沉积物生成量减少、颜色变浅、等级降低的变化趋势。With caproic acid, ditertiary butyl peroxide and caproic aldehyde as model compounds for incomplete combustion products of diesel fuel under high altitude environment, based on determination and comprehensive rating of deposit contents, distri-butions and colors, effects of the three oxygenous compounds on detergency of CF-4 diesel engine oil were evaluated in a crankcase simulation tester. The results indicated that the three oxygenous compounds to great extent degraded the detergency of the CF-4 die-sel engine oil, of which caproic acid was the most powerful degrader, followed by ditertiary butyl peroxide and then caproic alde-hyde. Effects of caproic acid on detergency of the CF-4 diesel engine oil were manifested by markedly increasing contents and ever-deepening color of varnish deposits and thus ascending degree with increasing concentrations of caproic acid in the CF-4 diesel en-gine oil, and effects of ditertiary butyl peroxide and caproic aldehyde were characterized by decreasing contents and ever-fading col-or of varnish deposits and thus descending ratings with increasing concentrations.

关 键 词：柴油机油 清净性 正己酸 二叔丁基过氧化物 己醛 

分 类 号：TQ645[化学工程—精细化工]