小型柴油机气门断裂问题分析研究  

Analysis and Research on Valve Fracture of Small Diesel Engine

作　　者：周宗良 刘婷婷 Zhou Zong-liang;Liu Ting-ting(Beijing Foton Motor Co.,Ltd.,Beijing 100022;Wan Xiang A123 Systems Asia Co.,Ltd,Zhejiang Hangzhou 311215)

机构地区：[1]北汽福田汽车股份有限公司,北京100022 [2]万向一二三股份公司,浙江杭州311215

出　　处：《内燃机与配件》2023年第14期69-71,共3页Internal Combustion Engine & Parts

摘　　要：本文基于售后市场反馈的某款柴油机汽车的质量问题,论述了气门断裂的几种故障现象,列举气门断裂的潜在原因,通过对故障现象信息整合分析,基于工程设计、CAE动力学计算、尺寸链校核等综合评估,提出减免气门断裂问题的三个路径,一是优化运动件的配合间隙;二是提高摩擦副零件长周期工况运行的安全系数;三是加强零部件的质量控制。Based on the quality problems of a certain diesel engine vehicle feedback from the after-sales market,this article discusses several fault phenomena of valve fracture,lists the potential causes of valve fracture,and proposes three ways to reduce,even avoid valve fracture through integrated analysis of fault phenomenon information and comprehensive evaluation based on engineering design,CAE dynamics calculation and dimensional chain checking.One is to optimize the fit clearance of moving parts;the second is to improve the safety factor of long cycle operation of friction pair parts;the third is to strengthen the quality control of parts.

关 键 词：柴油机 气门断裂 配合间隙 配气正时 质量控制 

分 类 号：U464.134.3[机械工程—车辆工程]