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The Key Role of Advanced, Flexible Fuel Injection Systems to Match the Future CO2 Targets in an Ultra-Light Mid-Size Diesel Engine
Technical Paper
2018-37-0005
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The paper describes the results achieved in developing a new diesel combustion system for passenger car application that, while capable of high power density, delivers excellent fuel economy through a combination of mechanical and thermodynamic efficiencies improvement.
The project stemmed from the idea that, by leveraging the high fuel injection pressure of last generation common rail systems, it is possible to reduce the engine peak firing pressure (pfp) with great benefits on reciprocating and rotating components light-weighting and friction for high-speed light-duty engines, while keeping the power density at competitive levels. To this aim, an advanced injection system concept capable of injection pressure greater than 2500 bar was coupled to a prototype engine featuring newly developed combustion system. Then, the matching among these features have been thoroughly experimentally examined.
The results confirmed the benefits of the employment of high fuel injection pressures as a way to reduce the pfp, combining competitive performance and excellent fuel efficiency with emissions and Noise Vibration Harshness (NVH) requirements of last generation diesel engines for passenger car applications. In particular, the paper discusses the engine power and efficiency sensitivities to the boundary conditions of the charging/exhaust systems, the fuel injection pressure and the mechanical base engine design (with particular reference to the pfp). Eventually, a balanced set of targets for the entire system based on such results are carried out.
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Vassallo, A., Beatrice, C., Di Blasio, G., Belgiorno, G. et al., "The Key Role of Advanced, Flexible Fuel Injection Systems to Match the Future CO2 Targets in an Ultra-Light Mid-Size Diesel Engine," SAE Technical Paper 2018-37-0005, 2018, https://doi.org/10.4271/2018-37-0005.Data Sets - Support Documents
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References
- European Automobile Manufacturers Association (ACEA) 2017
- Steinparzer F. , Nefischer P. , Stütz W. , Hiemesch D. et al. The New BMW Six-Cylinder Top Engine with Innovative Turbocharging Concept 37th Vienna Motor Symposium 2016
- Thirouard , M. , Mendez , S. , Pacaud , P. , Chmielarczyk , V. et al. Potential to Improve Specific Power Using Very High Injection Pressure in HSDI Diesel Engines SAE Technical Paper 2009-01-1524 2009 10.4271/2009-01-1524
- Lamping , M. , Körfer , T. , and Wix , K. HSDI Diesel Engines - FEV’s High Power Density Concepts ATZ Autotechnology 9 1 40 45 2009 10.1007/BF03247104
- Thirouard , M. and Pacaud , P. Increasing Power Density in HSDI Engines as an Approach for Engine Downsizing SAE Int. J. Engines 3 2 56 71 2010 10.4271/2010-01-1472
- Wartha J. , Antonioli P. , Sala M. , de Marco M. et al. New 2.0L Euro6 GM Diesel Engine - Fuel Economy and Driving Experience State of the Art 23rd Aachen Kolloquium 2014
- Cipolla , G. , Vassallo , A. , Catania , A. , Spessa , E. et al. Combined Application of CFD Modeling and Pressure-Based Combustion Diagnostics for the Development of a Low Compression Ratio High-Performance Diesel Engine SAE Technical Paper 2007-24-0034 2007 10.4271/2007-24-0034
- Wickman D. , Diwakar R. , and Chang S. 2008
- Pesce F.C. , Vassallo A. , Beatrice C. Di Blasio G. , et al. Exceeding 100 kW/L Milestone: The Next Step towards Defining High-Performance Diesel Engines 25th Aachen Kolloquium 2016
- Di Blasio , G. , Beatrice , C. , Belgiorno , G. , Pesce , F. et al. Functional Requirements to Exceed the 100 kW/L Milestone for High Power Density Automotive Diesel Engines SAE Int. J. Engines 10 5 2017 10.4271/2017-24-0072
- Steinparzer F. et al. The New 3- and 4-Cylinder Diesel Engines from the BMW Group - Next Generation Modular Design 26th Aachen Kolloquium 2017
- Kufferath A. , Krüger M. , Naber D. , Maier R. et al. Fuel Consumption in Accordance with Real Driving Emissions: The Future of Diesel Passenger Car 38 Internationales Wiener Motorensymposium 2017
- Beatrice , C. , Belardini , P. , Bertoli , C. , Lisbona , M.G. et al. Diesel Combustion Control in Common Rail Engines by New Injection Strategies International Journal of Engine Research 3 1 23 36 2002 doi.org/10.1016/j.fuel.2017.06.112
- O'Connor , J. and Musculus , M. Post Injections for Soot Reduction in Diesel Engines: A Review of Current Understanding SAE Int. J. Engines 6 1 400 421 2013 10.4271/2013-01-0917
- Chen , S. and Flynn , P. Development of a Single Cylinder Compression Ignition Research Engine SAE Technical Paper 650733 1965 10.4271/650733
- Busch , H. , Jones , A. , Higgins , D. , Page , G. et al. SIA Powertrain - Rouen 2016
- Diwakar , R. and Domenech-Llopis , V. Physics of Combustion Noise Reduction with Multiple Injections in a DI Diesel Engine - a Computational Study SAE Technical Paper 2017-01-0566 2017 10.4271/2017-01-0566