Computational study of regulating characteristics of butterfly valve on the regulated two stage turbocharged diesel engine

被引：0

作者：

Liu, Bo ^{[1
]}

Qian, Yue-Hua ^{[1
]}

Deng, Kang-Yao ^{[1
]}

Zhang, Zhe ^{[1
]}

Wang, Zhen-Biao ^{[2
]}

机构：

[1] Key Laboratory for Power Machinery and Engineering of Ministry of Education, Shanghai Jiao Tong University, Shanghai 200240, China

[2] China North Engine Research Institute, Datong 037036, China

来源：

Neiranji Gongcheng/Chinese Internal Combustion Engine Engineering | 2011年 / 32卷 / 02期

关键词：

Butterfly valve - Computational studies - Cylinder block - Engineering fields - Exhaust flow - Exhaust systems - High pressure - IC engine - Mean flow coefficient - Mean-value models - Submodels - Total pressure ratio - Turbocharged diesel engine - Two stage - Two-stage turbocharging;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

A mean value model for regulated two stage turbocharged diesel engine was established, including a series of submodels for cylinder block, intake system, exhaust system, turbocharger, and butterfly valve. The butterfly valve was based on the mean flow coefficient used commonly in the engineering field and corrected according to the exhaust gas compressibility. The regulating characteristics of the butterfly valve in the regulated two stage turbocharging system were studied using the model. In opening range of 90° to 60°, the butterfly valve has barely regulating effect. However in opening range of 60° to 0°, the butterfly valve can regulate the exhaust flow distribution between the high pressure stage turbine and itself almost linearly. Furthermore the total pressure ratio of the diesel engine can be continuously regulated by the butterfly valve.

引用

页码：17 / 22