Ignition Characteristics of Diesel Engine Under Low-Temperature Start Condition

被引：0
|
作者：
Ma Y. [1 ]
Feng Y. [1 ]
Liao T. [1 ]
Liu H. [2 ]
机构：
[1] Wheeled System Technology Department, China North Vehicle Research Institute, Beijing
[2] State Key Laboratory of Engine, Tianjin University, Tianjin
来源：
Neiranji Xuebao/Transactions of CSICE (Chinese Society for Internal Combustion Engines) | 2024年 / 42卷 / 01期
关键词：
diesel engine; ignition characteristics; low-temperature start;
D O I：
10.16236/j.cnki.nrjxb.202401002
中图分类号：
学科分类号：
摘要：
The compression pressure and temperature during low-temperature start was analyzed on a V-type 8-cylinder turbocharged diesel engine，and then the ignition characteristics of diesel spray was studied in a constant-volume spray combustion test device with background temperature and density based on the low-temperature start condition of the engine. The relationship between ignition delay period and ignition position under different background temperature and density conditions was studied. It is found that the ignition delay of diesel free spray increases and the ignition stability decreases with the decrease of background temperature. When the background temperature is below 430 ℃，the success rate of diesel jet ignition is very low，leading to misfire. The research result is of great significance for improving the stability of low-temperature start and improving fuel consumption and emissions for the diesel engine. © 2024 Chinese Society for Internal Combustion Engines. All rights reserved.
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页码：11 / 17
页数：6
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