内燃机工程2026，Vol.47Issue(4)：1-7,7.DOI:10.13949/j.cnki.nrjgc.2026.04.001
不同降怠速时刻对催化型柴油机颗粒捕集器温度的影响
Effects of Different Drop to Idle Timings on CDPF Temperatures
摘要
Abstract
To address the issue of catalyzed diesel particulate filter(CDPF)failure caused by abnormal regeneration leading to overheating during operation,a simple burner test bench was established to conduct drop to idle(DTI)regeneration tests on CDPF.With same soot load,the DTI timing was controlled to investigate the temperature regulation characteristics during the active regeneration process of CDPF under different regeneration durations.The results show that if DTI occurs toolate,the interior of in the CDPF fails to reach the ideal regeneration temperature,leading to lower peak regeneration temperature inside the carrier.Conversely,too late DTI timing causes significant soot consumption inside the CDPF.Although the internal temperature of the CDPF is higher when the idle speed was lowered,the peak temperature remains low.关键词
催化型柴油机颗粒捕集器/降怠速/再生/柴油机/峰值温度Key words
catalytic diesel particulate filter(CDPF)/drop to idle(DTI)/regeneration/diesel engine/peak temperature分类
能源科技引用本文复制引用
刘海涛,南征,张秋实,张易非,华伦..不同降怠速时刻对催化型柴油机颗粒捕集器温度的影响[J].内燃机工程,2026,47(4):1-7,7.基金项目
国家重点研发计划项目(2023YFC3707203) National Key Research and Development Program(2023YFC3707203) （2023YFC3707203）
