Study on soot optimization in diesel transient process based on fuel injection strategies

被引：0
|
作者：
Liu Z. [1 ]
Yu K. [1 ]
Tian J. [1 ]
Xu Y. [1 ]
Qi S. [1 ]
Teng P. [1 ]
机构：
[1] State Key Laboratory of Automobile Simulation and Control, Jilin University, Changchun, 130022, Jilin Province
来源：
Tian, Jing (jingtian@jlu.edu.cn) | 1600年 / Chinese Society for Electrical Engineering卷 / 36期
关键词：
Diesel engine; Injection pressure; Soot emission; Transient operation; Two-stage turbocharger;
D O I：
10.13334/j.0258-8013.pcsee.160381
中图分类号：
学科分类号：
摘要：
Aimed at reduction of smoke emission, the influence of fuel injection strategies on combustion and soot emission was conducted in two-stage turbocharged diesel engine with a by-pass valve under typical 5s transient process of constant speed and increase toque. The test results show that: two-stage turbocharger can be allowed to improve intake air supply, and provide significant soot reduction as the valve was closed under full-stage rail pressure augment strategy, but soot deterioration happened once valve opening got larger; with small valve opening, sectional-stage fuel injection augment strategy can be provided to improve in-cylinder thermodynamics conditions during early transient process, and then enhance air-fuel mixture much more better at larger load rate, and maximum soot decline reached up to 51.5%, which happened with valve opening by 10%; fuel consumption could be getting worse as well when valve opening became larger, but this deterioration situation can effectively be restrained by utilization of sectional-stage fuel injection augment strategy. © 2016 Chin. Soc. for Elec. Eng.
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页码：4490 / 4496
页数：6
相关论文
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