Super-Turbocharging the Dual Fuel Diesel Injection Ignition Engine
2018-28-0036
07/09/2018
- Event
- Content
- 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.
- Pages
- 10
- Citation
- Boretti, 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.