Optimal Design and Matching on a Low-Emission Single-Cylinder Air-Cooling Diesel Engine

被引：0

作者：

Wang J. ^{[1
]}

Chen P. ^{[1
]}

Wang B. ^{[1
]}

Liu S. ^{[1
]}

Yin B. ^{[1
]}

Shao H. ^{[2
]}

机构：

[1] School of Automotive and Traffic Engineering, Jiangsu University, Zhenjiang

[2] Wuxi Worldbest KAMA Power Company Limited, Wuxi

来源：

Neiranji Xuebao/Transactions of CSICE (Chinese Society for Internal Combustion Engines) | 2021年 / 39卷 / 02期

关键词：

Combustion system; Diesel engine; Emission; Off-road; Working process;

D O I：

10.16236/j.cnki.nrjxb.202102022

中图分类号：

学科分类号：

摘要：

To reduce exhaust emissions, an optimal design of a single cylinder air-cooling 192 F off-road diesel engine and a performance matching with an accumulator typed fuel injection system were studied. The cam profile of the high-pressure fuel pump and nozzle parameters of the electronically-controlled fuel injector were calculated and designed, the helical intake port was optimized, combustion chamber geometry was also redesigned. The fuel spray distribution was optimized in order that the combustion chamber and air intake system could match with the high pressure accumulator typed fuel injection system well. Experiment to study how injection parameters affect combustion process, performance and emissions were conducted under the rated and the maximum torque operating conditions. The map of fuel injection parameters across full operating points was obtained by best performance matching. Experiment results based on 8-mode steady state emission test cycle show that the brake specific emissions of CO, HC+NOx and PM are 3.66, 5.72 and 0.35 g/(kW•h)respectively, their deterioration coefficient are 1.50, 1.31 and 1.71 respectively, it means that all emissions have an adequate deterioration margin within engine application life according to China Ⅲ off-road diesel engine emission limits. The prototype diesel engine can meet the requirements of current off-road emission regulations and also has a great potential to meet much stricter emission regulations in the future. © 2021, Editorial Office of Chinese I.C.E. Engineering. All right reserved.

引用

页码：167 / 175

页数：8

共 18 条

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