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Lubricant Induced Pre-Ignition in an Optical SI Engine
Technical Paper
2014-01-1222
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This work was concerned with study of lubricant introduced directly into the combustion chamber and its effect on pre-ignition and combustion in an optically accessed single-cylinder spark ignition engine. The research engine had been designed to incorporate full bore overhead optical access capable of withstanding peak in-cylinder pressures of up to 150bar. An experiment was designed where a fully formulated synthetic lubricant was deliberately introduced through a specially modified direct fuel injector to target the exhaust area of the bore. Optical imaging was performed via natural light emission, with the events recorded at 6000 frames per second. Two port injected fuels were evaluated including a baseline commercial grade gasoline and low octane gasoline/n-heptane blend. The images revealed the location of deflagration sites consistently initiating from the lubricant itself. With the high octane fuel (and the limited load adopted for safe optical work) lubricant induced pre-ignition was observed, but without knock. This pre-ignition was repeatedly the result of the lubricant deliberately introduced earlier on in the same cycle. With the lower octane fuel, the previously well reported “on-off” knocking nature of pre-ignited knocking combustion was observed during a sequence of cycles following a single injection of lubricant. In addition it was sometimes apparent that cycles with knock would result in oil subsequently being ejected from the piston top land area during the power stroke.
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Citation
Dingle, S., Cairns, A., Zhao, H., Williams, J. et al., "Lubricant Induced Pre-Ignition in an Optical SI Engine," SAE Technical Paper 2014-01-1222, 2014, https://doi.org/10.4271/2014-01-1222.Also In
References
- Council Regulation EC 443/2009 of 23rd April 2009 setting emission performance standards for new passenger cars as part of the Community's integrated approach to reduce CO2 emissions from light-duty vehicles OJ L140/1 2009
- European Environment Agency Monitoring CO2 emissions from new passenger cars in the EU: summary of data for 2012 2013
- Guzzella , L. , Wenger , U. , and Martin , R. IC-Engine Downsizing and Pressure-Wave Supercharging for Fuel Economy SAE Technical Paper 2000-01-1019 2000 10.4271/2000-01-1019
- Wirth , M. , Mayerhofer , U. , Piock , W. , and Fraidl , G. Turbocharging the DI Gasoline Engine SAE Technical Paper 2000-01-0251 2000 10.4271/2000-01-0251
- Lecointe , B. and Monnier , G. Downsizing a Gasoline Engine Using Turbocharging with Direct Injection SAE Technical Paper 2003-01-0542 2003 10.4271/2003-01-0542
- Fraser , N. , and Blaxill , H. Engine Downsizing and the Application of Gasoline Direct Injection to a High Specific Output Turbocharged Engine IMechE Fuel Economy and Engine Downsizing Conference 2004
- Lumsden , G. , OudeNijeweme , D. , Fraser , N. , and Blaxill , H. Development of a Turbocharged Direct Injection Downsizing Demonstrator Engine SAE Int. J. Engines 2 1 1420 1432 2009 10.4271/2009-01-1503
- Andriesse , D. The New 1.8 1 DI Turbo-Jet Gasoline Engine from Fiat Powertrain Technologies 17th Aachener Kolloquium Fahrzeug- und Motorentechnik 2008
- Krebs , R. The New Audi 2,0l T-FSI Motor - The First Direct Injection Turbo Gasoline Engine at Audi 25th International Vienna Motor Symposium 2004
- Yi , J. , Wooldridge , S. , Coulson , G. , Hilditch , J. et al. Development and Optimization of the Ford 3.5L V6 EcoBoost Combustion System SAE Int. J. Engines 2 1 1388 1407 2009 10.4271/2009-01-1494
- Lang , O. , Geiger , J. , Habermann , K. , and Wittler , M. Boosting and Direct Injection -Synergies for Future Gasoline Engines SAE Technical Paper 2005-01-1144 2005 10.4271/2005-01-1144
- Fraidl , G. , Kapus , P. , Prevedel , K. , and Fuerhapter , A. GDI Turbo: The next Steps 28th International Vienna Motor Symposium 2007
- Wieske , P. , Lüddecke , B. , Ewert , S. , Elsäßer , A. et al. New Concepts for Optimising Transient Torque Response and Fuel Economy of Turbocharged Gasoline Engines 18th Aachener Kolloquium Fahrzeug- und Motorentechnik 2009
- Fraser , N. , Blaxill , H. , Lumsden , G. , and Bassett , M. Challenges for Increased Efficiency through Gasoline Engine Downsizing SAE Int. J. Engines 2 1 991 1008 2009 10.4271/2009-01-1053
- Carey , C. , McAllister , M. , Sandford , M. , Richardson , S. et al. Extreme engine downsizing. In: Institution of Mechanical Engineers - Innovations in Fuel Economy and Sustainable Road Transport Institution of Mechanical Engineers 135 147 2011
- Kalghatgi , G.T. , Bradley , D. , Andrae , J. and Harrison , A.J. The nature of super knock and its origins in SI engines IMechE Performance, Fuel Economy and Emissions Conference 2009
- Amann , M. , Mehta , D. , and Alger , T. Engine Operating Condition and Gasoline Fuel Composition Effects on Low- Speed Pre-Ignition in High-Performance Spark Ignited Gasoline Engines SAE Int. J. Engines 4 1 274 285 2011 10.4271/2011-01-0342
- Dahnz , C. , Han , K. , Spicher , U. , Magar , M. et al. Investigations on Pre-Ignition in Highly Supercharged SI Engines SAE Int. J. Engines 3 1 214 224 2010 10.4271/2010-01-0355
- Zahdeh , A. , Rothenberger , P. , Nguyen , W. , Anbarasu , M. et al. Fundamental Approach to Investigate Pre-Ignition in Boosted SI Engines SAE Int. J. Engines 4 1 246 273 2011 10.4271/2011-01-0340
- Amann , M. , Alger , T. , Westmoreland , B. , and Rothmaier , A. The Effects of Piston Crevices and Injection Strategy on Low- Speed Pre-Ignition in Boosted SI Engines SAE Int. J. Engines 5 3 1216 1228 2012 10.4271/2012-01-1148
- Takeuchi , K. , Fujimoto , K. , Hirano , S. , and Yamashita , M. Investigation of Engine Oil Effect on Abnormal Combustion in Turbocharged Direct Injection - Spark Ignition Engines SAE Int. J. Fuels Lubr. 5 3 1017 1024 2012 10.4271/2012-01-1615
- Johnston , S. , Robinson , C. , Rorke , W. , Smith , J. et al. Application of Laser Diagnostics to an Injected Engine SAE Technical Paper 790092 1979 10.4271/790092
- Rassweiler , G. and Withrow , L. Motion Pictures of Engine Flames Correlated with Pressure Cards SAE Technical Paper 380139 1938 10.4271/380139
- Inoue , T. , Inoue , Y. , and Ishikawa , M. Abnormal Combustion in a Highly Boosted SI Engine - The Occurrence of Super Knock SAE Technical Paper 2012-01-1141 2012 10.4271/2012-01-1141
- Konig , G. and Sheppard , C. End Gas Autoignition and Knock in a Spark Ignition Engine SAE Technical Paper 902135 1990 10.4271/902135
- Petersen , B. and Ghandhi , J. High Resolution Scalar Dissipation and Turbulence Length Scale Measurements in an Internal Combustion Engine SAE Int. J. Engines 3 1 65 83 2010 10.4271/2010-01-0185
- Maly , R. , Klein , R. , Peters , N. , and Kðnig , G. Theoretical and Experimental Investigation of Knock Induced Surface Destruction SAE Technical Paper 900025 1990 10.4271/900025
- Kalghatgi , G. T. and Bradley , D. Pre-ignition and ‘super-knock’ in turbo-charged spark-ignition engines IMechE International Journal of Engine Research 2012 2012 10.1177/1468087411431890