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.


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    Title :

    Super-Turbocharging the Dual Fuel Diesel Injection Ignition Engine


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    International Conference on Advances in Design, Materials, Manufacturing and Surface Engineering for Mobility ; 2018



    Publication date :

    2018-07-09




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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