Researches of Double-Layer Diverging Combustion System (DLDCS) in a DI Diesel Engine

Paper #:
  • 2015-01-1833

Published:
  • 2015-09-01
DOI:
  • 10.4271/2015-01-1833
Citation:
Long, W., Fu, Y., Tian, J., He, S. et al., "Researches of Double-Layer Diverging Combustion System (DLDCS) in a DI Diesel Engine," SAE Technical Paper 2015-01-1833, 2015, doi:10.4271/2015-01-1833.
Pages:
9
Abstract:
The new DI diesel engine combustion system named Double-Layer Diverging Combustion System (DLDCS) results in a better Brake Specific Fuel Consumption (BSFC) and lower exhaust emissions. The previous results of numerical simulation and bench test of a single cylinder DI diesel engine showed that more homogeneous fuel distribution, better BSFC and lower emission level were obtained by employing this combustion system. In this research, further numerical simulation are employed to seek the best injection advance angle and investigate the influence of different volume fraction and type lines of upper layer with AVL Fire.
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