摘要
在汽车发动机排放控制方面,废气再循环(Exhaust Gas Recycling)阀(简称:EGR阀)是降低氮氧化物排放的重要部件,其性能优劣直接影响发动机的整体性能与环保指标。本文通过对发动机中EGR阀与废气接触的部件材料选择的案例分析,深入探讨了阀体、阀片和阀杆的材料选择依据,包括铸铁类、铝合金类、不锈钢类材料的特性与应用优势,并从可行性、耐久性和经济性等方面评估了材料选择效果,为EGR阀材料选择提供了实践参考与理论依据。
In the realm of automotive engine emission control,the Exhaust Gas Recycling(EGR)valve plays a pivotal role in reducing nitrogen oxide emissions.Its performance directly impacts the overall performance and environmental indicators of the engine.This article delves into the material selection criteria for the valve body,valve plate,and valve stem of the EGR valve,which come into contact with exhaust gas,through a case study of material choices in engines developed by certain OEMs.It explores the characteristics and application advantages of cast iron,aluminum alloy,and stainless steel materials,and evaluates the effectiveness of material selection from the perspectives of feasibility,durability,and economy.This provides practical reference and theoretical basis for the material selection of EGR valves.
作者
张伟
赵贻富
Zhang Wei;Zhao Yi-fu(Yibin Tianruida Auto Parts Co.,Ltd.,Sichuan Yibin 644600)
出处
《内燃机与配件》
2025年第17期51-53,共3页
Internal Combustion Engine & Parts
关键词
EGR阀
材料选择
可行性
耐久性
经济性
EGR valve
Material selection
Feasibility
Durability
Economy
