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Experimental Investigations on Engine-Out Emissions Sensitivity to Fuel Injection Pressure of a High-Performance DISI Single Cylinder Engine
Technical Paper
2019-24-0169
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
In recent times, complying with increasingly stringent emission regulations has become ever more challenging than before. While an efficient after-treatment system, that includes a gasoline particulate filter, enables compliance with legislation requirements, lowering engine-out emissions by improving the combustion system must be considered as a crucial advantage for both pollutants emission control and performance. In this respect, high-performance enabling contents such as relatively large displacement, flow-capacity oriented intake ports and a limited stroke-to-bore ratio have significant drawbacks on the charge motion quality and, consequently, on mixture formation and homogeneity. As a countermeasure, fuel injection system components, as well as control strategies, need to be substantially improved. The increase of fuel injection pressure, coupled with optimized injection timing and splitting, has proven to be effective in reducing emissions, especially with regard to particulate matter. This paper provides results of an experimental study investigating the effect of different fuel injection strategies on engine-out emissions, with special emphasis on the influence of very high fuel injection pressures (up to 50 MPa) on particulate matter. A multi-hole inwardly-opening fuel injector fitted to a high specific power direct-injection spark ignition (DISI) single cylinder engine, was tested over a wide range of steady state operating conditions, including catalyst heating, part loads and rated power. A fast particle spectrometer was employed along with a PMP-compliant particle counter to fully characterize fuel injection pressure effect on particle number and size distribution. The results show that significant improvements can be achieved over the entire range of investigated engine operating conditions, especially in regard to particulate matter emissions.
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Rossi, V., Silvestri, N., and Medda, M., "Experimental Investigations on Engine-Out Emissions Sensitivity to Fuel Injection Pressure of a High-Performance DISI Single Cylinder Engine," SAE Technical Paper 2019-24-0169, 2019, https://doi.org/10.4271/2019-24-0169.Data Sets - Support Documents
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References
- Medda , M. , Calogero , L. , Cucchi , M. , Paltrinieri , S. , Rossi , V. Development of a Novel Combustion System for Emissions Reduction 26th Aachen Colloquium Automobile and Engine Technology 2017
- Piock , W. , Hoffmann , G. , Berndorfer , A. , Salemi , P. , and Fusshoeller , B. Strategies Towards Meeting Future Particulate Matter Emission Requirements in Homogeneous Gasoline Direct Injection Engines SAE Int. J. Engines 10.4271/2011-01-1212
- Hoffmann , G. , Befrui , B. , Berndorfer , A. , Piock , W. et al. Fuel System Pressure Increase for Enhanced Performance of GDi Multi-Hole Injection Systems SAE Int. J. Engines 7 1 2014 10.4271/2014-01-1209
- Piock , W. , Befrui , B. , Berndorfer , A. , and Hoffmann , G. Fuel Pressure and Charge Motion Effects on GDi Engine Particulate Emissions SAE Int. J. Engines 8 2 2015 10.4271/2015-01-0746
- Whitaker , P. , Kapus , P. , Ogris , M. , and Hollerer , P. Measures to Reduce Particulate Emissions from Gasoline DI Engines SAE Int. J. Engines 10.4271/2011-01-1219
- Berndorfer , A. , Breuer , S. , Piock , W. , and Von Bacho , P. Diffusion Combustion Phenomena in GDI Engines Caused by Injection Process SAE Technical Paper 2013-01-0261 2013 10.4271/2013-01-0261
- Fatouraie , M. , Frommherz , M. , Mosburger , M. , Chapman , E. et al. Investigation of the Impact of Fuel Properties on Particulate Number Emission of a Modern Gasoline Direct Injection Engine SAE Technical Paper 2018-01-0358 2018 10.4271/2018-01-0358
- Leach , F. , Knorsch , T. , Laidig , C. , and Wiese , W. A Review of the Requirements for Injection Systems and the Effects of Fuel Quality on Particulate Emissions from GDI Engines SAE Technical Paper 2018-01-1710 2018 10.4271/2018-01-1710
- https://www.cambustion.com/products/dms500/engine
- Peckham , M. S. , Finch , A. , and Campbell , B. Study of Particle Number Emissions from a Turbocharged Gasoline Direct Injection (GDI) Engine Including Data from a Fast-Response Particle Size Spectrometer SAE Technical Paper 2011-01-1224 10.4271/2011-01-1224