New Concept for Six-Stroke Diesel Engine

Paper #:
  • 941922

Published:
  • 1994-10-01
Citation:
Arai, M., Amagai, K., and Ida, Y., "New Concept for Six-Stroke Diesel Engine," SAE Technical Paper 941922, 1994, https://doi.org/10.4271/941922.
Pages:
13
Abstract:
In this report, a new six-stroke diesel engine is proposed and the thermodynamic performances of this engine are numerically and experimentally analyzed. Since the six-stroke diesel engine introduced here has two combustion processes in one cycle, it offers new methods of combustion control which can't be attained in an ordinary four-stroke diesel engine. In the analysis, we use a simple single zone thermodynamic model with considering the Wiebe's function for heat release rate and the Woschni's equation for heat transfer coefficient. As a results, it was confirmed when the heat release of 1st combustion stroke and 2nd combustion stroke were equivalent, the maximum in-cylinder gas temperature was the lowest, and further it was lower than that of the four stroke diesel engine.
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