1. State Key Lab of Engines, Tianjin University, Tianjin, P.R. China;
2. PJ-ENS, Bosch Automotive Diesel Systems Co., Ltd., Wuxi, China;
3. School of Aerospace, Mechanical & Manufacture Engineering, RMIT University, Melbourne, Australia;
4. School of Engineering Science, University of Science and Technology of China, Anhui, P.R. China;
5. R & D Department, China North Engine Research Institute, Tianjin, P.R. China