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TC GDI Engines at Very High Power Density — Irregular Combustion and Thermal Risk
ISSN: 0148-7191, e-ISSN: 2688-3627
Published September 13, 2009 by Consiglio Nazionale delle Ricerche in Italy
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Gasoline direct injection and turbocharging enable the progress of clean and fuel efficient SI engines. Accessing potential efficiency benefits requires very high power density to be achieved across a broad rpm range. This imposes risks which in conventional engines are rarely met. However, at torque levels exceeding 25 bar BMEP, the thermal in-cylinder conditions together with chemical reactivity of any ignitable matter, require major efforts in combustion system development.
The paper presents a methodology to identify and locate sporadic self ignition events and it demonstrates non contact surface temperature measurement techniques for in-cylinder and exhaust system components.
CitationWinklhofer, E., Hirsch, A., Kapus, P., Kortschak, M. et al., "TC GDI Engines at Very High Power Density — Irregular Combustion and Thermal Risk," SAE Technical Paper 2009-24-0056, 2009, https://doi.org/10.4271/2009-24-0056.
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