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Super-Turbocharging the Dual Fuel Diesel Injection Ignition Engine
ISSN: 0148-7191, e-ISSN: 2688-3627
Published July 09, 2018 by SAE International in United States
Annotation ability available
Event: International Conference on Advances in Design, Materials, Manufacturing and Surface Engineering for Mobility
Turbocharging dramatically improves the power density of internal combustion engines both in the compression ignition and the spark ignition cases. However, a standalone turbocharger suffers from transient and steady state downfalls where the energy to turbine is either smaller or larger than what would be needed to optimize the engine operation in a specific steady state or transient point. Hence a concept was proposed of a super-turbocharger where the turbocharger shaft is connected to the crankshaft through a continuously variable transmission and a gear. Energy is drawn from the crankshaft or delivered to the crankshaft to improve the work in every operating point of the steady map. In this paper, the concept of super-turbocharger is applied to a six-cylinder, dual fuel diesel injection ignition engine. The system is modelled using state-of-the-art automotive software and simulations of the steady-state operation are presented. This paper concentrates on the case of post injection of the LPG. Results of engine performance simulations are presented in detail.
CitationBoretti, A. and Ordys, A., "Super-Turbocharging the Dual Fuel Diesel Injection Ignition Engine," SAE Technical Paper 2018-28-0036, 2018, https://doi.org/10.4271/2018-28-0036.
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