某增压发动机降低早燃发生频次的研究  

Research on Reducing the Frequency of LSPI in Turbocharged Engine

作　　者：秦万里 吕明杰 王云超 QIN Wanli;LV Mingjie;WANG Yunchao(Ningbo Geely Royal Engine Components Co.,Ltd.,Ningbo,Zhejiang,315336,China)

机构地区：[1]宁波吉利罗佑发动机零部件有限公司,浙江宁波315336

出　　处：《小型内燃机与车辆技术》2023年第2期28-30,共3页Small Internal Combustion Engine and Vehicle Technique

摘　　要：一款1.0L小型增压发动机,在使用非抗早燃的5 W-30机油的前提下,存在频繁的早燃现象,对活塞等零部件造成破坏。为了提高发动机的耐久性,依据早燃的发生机理,对不同的影响因素,如机油,积碳,发动机负荷等进行分析验证,找到诱发发动机早燃的关键因素并针对性地进行限制,保证发动机的耐久性能。From the bench test and real vehicle performance of a current 1.0L turbocharged engine,under the premise of not using SN plus 5W-30,there is frequent LSPI,which damage engine piston and other parts.In order to improve the durability of the engine,according to the mechanism of LSPI,different factors,such as lubricants,carbon deposition and engine load are analyzed to find out the key characteristics of LSPI and to limit them to ensure the durability of the engine.

关 键 词：小型增压发动机 LSPI 机油 积碳 发动机负荷 

分 类 号：TK411.2[动力工程及工程热物理—动力机械及工程]