CAJ | 학술논문

本文通过对某欧Ⅳ柴油发动机EGR冷却系统的优化设计，解决了原型机EGR冷却系统设计不合理，使得EGR阀入口废气温度过高导致EGR阀烧蚀失效的问题。同时通过耐久试验验证，确定了流经EGR阀废气温度的合适范围。对EGR冷却系统的设计开发都具有指导意义。
본문통과대모구Ⅳ시유발동궤EGR냉각계통적우화설계，해결료원형궤EGR냉각계통설계불합리，사득EGR벌입구폐기온도과고도치EGR벌소식실효적문제。동시통과내구시험험증，학정료류경EGR벌폐기온도적합괄범위。대EGR냉각계통적설계개발도구유지도의의。
In this paper, EGR cooling system in European Ⅳ diesel engine was optimized. Af- ter the unreasonable design was removed, the problem of ECR valve ablation which was caused by high temperature exhaust in the valve inlet are solved. The durability test determined the range of exhaust temperature. This research provided a good guidance for designing of EGR cooling system.