某车辆汽油发动机排气门烧蚀原因分析  

Cause Analysis of Exhaust Valve Ablation of a Vehicle Gasoline Engine

作　　者：常雪嵩 王晨曦 王岩[1,2] 纪雷 沈小栋[1,2] CHANG Xuesong;WANG Chenxi;WANG Yan;JI Lei;SHEN Xiaodong(Great Wall Motor Co.,Ltd.,Baoding 071000,China;Hebei Automotive Engine Technology Innovation Center,Baoding 071000,China)

机构地区：[1]长城汽车股份有限公司,河北保定071000 [2]河北省车用发动机技术创新中心,河北保定071000

出　　处：《客车技术与研究》2025年第1期58-62,共5页Bus & Coach Technology and Research

摘　　要：本文采用多种手段对某车辆汽油发动机排气门烧蚀的原因进行分析。结果表明,该车可能长期使用胶质含量过高的劣质汽油,燃烧后导致气门积碳,并造成气门烧蚀失效。This paper uses various means to analyze the ablation causes of exhaust valves in a vehicle gasoline engine.The results show that the vehicle may use inferior gasoline with high gum content for a long time,which leads to carbon deposition after combustion and valve ablation failure.

关 键 词：汽油发动机 排气门 积碳 烧蚀 

分 类 号：U472.43[机械工程—车辆工程]