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Challenges facing the low temperature diesel combustion boosting system

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6 Author(s)
Liu Jingping ; Research Center for Advanced Powertrain Technology, State Key Laboratory of Advanced D&M for Vehicle Body, Hunan University, Changsha, China ; Xia Xiaolang ; Wang Shuqing ; Xu Xingsheng
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Discussed in this paper are the challenges facing the boosting systems of Low Temperature Combustion (LTC) system. A new term named "Gas to Fuel Ratio (GFR) in cylinder" is introduced to deal with the combined dilution effect of fresh air and cooled external EGR Formulas are derived to illuminate the fundamental relationship between engine BMEP and GFR targets, with the required mass flowrate and pressure ratio for the boosting system. The theoretic models are correlated with experimental data and applied to optimize for the boosting system of a two stroke two cylinder diesel engine with up to 50% of external EGR

Published in:

Electric Information and Control Engineering (ICEICE), 2011 International Conference on

Date of Conference:

15-17 April 2011