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。
关键词：汽油发动机；排气门；积碳；烧蚀
中图分类号：U472.43 文献标志码：A DOI：10.15917/j.cnki.1006-3331.2025.01.013
Cause Analysis of Exhaust Valve Ablation of a Vehicle Gasoline Engine
CHANG Xuesong,WANG Chenxi,WANG Yan,JI Lei,SHEN Xiaodong
Abstract: 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 longtime, which leads to carbon deposition after combustion and valve ablation failure.
Key words: gasoline engine; exhaust valve; carbon deposition; ablation
