内燃机排放颗粒捕集器瞬态过滤研究现状综述  

A review of transient filtration research status of internal combustion engine emission particulatetraps

作　　者：李鉴松 罗林 余占蛟 汤广财 Li Jiansong;Luo Lin;She Zhanjiao;Tang Guangcai(Department of Mechanical and Electrical Engineering,Nanchong Vocational and Technical College,Nanchong 637131,China)

机构地区：[1]南充职业技术学院机电工程系,四川南充637131

出　　处：《汽车知识》2024年第4期135-137,共3页Auto Know

基　　金：南充市2022年科技计划项目(项目编号:22YYJCYJ0045)。

摘　　要：内燃机瞬态工况时,颗粒捕集器出口的颗粒排放严重,成为制约发动机达到“近零排放”目标的瓶颈问题。本文对内燃机冷启动颗粒排放特性、捕集器瞬态过滤模以及过滤机理影响因素三个方面的研究现状进行综述,提出了降低瞬态颗粒排放和减排的措施和研究思路,为降低能源的过度消耗、改善空气质量和降低空气中颗粒物的浓度等相关研究提供参考。During transient conditions of internal combustion engines,the particulate emissions at the outlet of particulate traps remain a significant issue,acting as a bottleneck to achieving"near-zero emissions"targets for engines.This paper provides a review of the current research status in three aspects:the particulate emission characteristics during engine cold starts,transient filtration models of traps,and factors influencing filtration mechanisms.Furthermore,several measures and research directions for reducing transient particulate emissions and emissions control strategies are proposed,aiming to provide reference for studies related to reducing excessive energy consumption and improving air quality.

关 键 词：内燃机 颗粒物 微粒捕集器 过滤机理 过滤模型 

分 类 号：TK401[动力工程及工程热物理—动力机械及工程]