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Influence of Different Oil Properties on Low-Speed Pre-Ignition in Turbocharged Direct Injection Spark Ignition Engines
Technical Paper
2016-01-0718
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
In recent years concern has arisen over a new combustion anomaly, which was not commonly associated with naturally aspirated engines. This phenomenon referred to as Low-Speed Pre-Ignition (LSPI), which often leads to potentially damaging peak cylinder pressures, is the most important factor limiting further downsizing and the potential CO2 benefits that it could bring. Previous studies have identified several potential triggers for pre-ignition where engine oil seems to have an important influence. Many studies [1], [2] have reported that detached oil droplets from the piston crevice volume lead to auto-ignition prior to spark ignition. Furthermore, wall wetting and subsequently oil dilution [3] and changes in the oil properties by impinging fuel on the cylinder wall seem to have a significant influence in terms of accumulation and detachment of oil-fuel droplets in the combustion chamber. For this reason the interaction of fuel and engine oil at the combustion chamber walls was investigated in a comprehensive parameter variation. During these investigations the parameters oil temperature, start of injection and injection strategy were varied. Other studies [4], [5] have demonstrated the influence of metal-based detergents on pre-ignitions. To investigate this hypothesis the influence of various additives on pre-ignitions were examined. Besides the investigations on different additive treat rates the focus was on metal-based detergents. While various test oils with different calcium-based detergents show a strong influence on preignition frequency a specially blended detergent-free test oil showed no tendency to pre-ignite.
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Mayer, M., Hofmann, P., Geringer, B., Williams, J. et al., "Influence of Different Oil Properties on Low-Speed Pre-Ignition in Turbocharged Direct Injection Spark Ignition Engines," SAE Technical Paper 2016-01-0718, 2016, https://doi.org/10.4271/2016-01-0718.Also In
References
- Dahnz , C. , Han , K.-M. , Magar , M. , Spicher , U. , Maas , U. Untersuchung des Auftretens und der Ursache von Selbstzündungen vor Zündungseinleitung bei aufgeladenen Motoren mit hohem Verdichtungsverhältnis FVV-Abschlussbericht Vorentflammung bei Ottomotoren, Vorhaben Nr. 931 2009
- Hirano , S. , Yamashita , M. , Fujimoto , K. , and Kato , K. Investigation of Engine Oil Effect on Abnormal Combustion in Turbocharged Direct Injection - Spark Ignition Engines (Part 2) SAE Technical Paper 2013-01-2569 2013 10.4271/2013-01-2569
- 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
- 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
- Watanabe , I. , Kawai , T. , Yonezawa , K. , Ogawa , T. The New Toyota 2.0-Liter Inline 4-Cylinder ESTEC D-4ST Engine - Turbocharged Direct Injection Gasoline Engine 23rd Aachen Colloquium Automobile and Engine Technology Aachen 2014
- Winkelhofer , E. From Gasoline to Ethanol Direct Injection Engines International Workshop about Ethanol Combustion Engines, FAPESP Sao Paulo, Brazil 2012
- Döhler , A. , Pritze S. A contribution to better understanding the pre-ignition phenomenon in highly charged internal combustion engines with direct fuel injection 4. Internationale Fachtagung Ottomotorisches Klopfen Berlin 2013
- Lauer , T. , Heiss , M. , Bobicic , N. , Pritze , S. Modellansatz zur Entstehung von Vorentflammungen Motorentechnische Zeitschrift 01 64 70 2014
- Palaveev , S. , Magar , M. , Disch , C. , Schießl , R. , Kubach , H. , Spicher , U. , Maas , U. ; Koch , T. Simulations and experimental investigations of intermittent preignition series in a turbocharged DISI engine 4. Internationale Fachtagung Ottomotorisches Klopfen Berlin 2013
- Amann , M. , Alger , T. , and Mehta , D. The Effect of EGR on Low-Speed Pre-Ignition in Boosted SI Engines SAE Int. J. Engines 4 1 235 245 2011 10.4271/2011-01-0339
- Adomeit , P. , Dohmen , J. , Thewes , M. , Ewald , J. , Günther , M. , Morcinkowski , B. , Pischinger , S. Einfluss von Kraftstoff und Brennverfahren auf die Vorentflammung beim aufgeladenen Ottomotor 34. Internationales Wiener Motorensymposium Wien 2013
- 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
- Welling , O. , Moss , J. , Williams , J. , and Collings , N. Measuring the Impact of Engine Oils and Fuels on Low-Speed Pre-Ignition in Downsized Engines SAE Int. J. Fuels Lubr. 7 1 1 8 2014 10.4271/2014-01-1219
- Waltner , A. , Altenschmidt , F. , Kaden , A. , Kemmler , R. BlueDirect - the technology for a globalised market 14. Internationales Stuttgarter Symposium Stuttgart 2014
- Schünemann , E. , Witt , A. , Selder , M. , Schwarz , C. Pre-Ignition analysis on a turbocharged gasoline engine with direct injection 4. Internationale Fachtagung Ottomotorisches Klopfen Berlin 2013
- Kaden , A. , Frommelt , A. , Gildein , H. , Kraus , E. , Schaupp , U. Knocking simulation at Mercedes-Benz - application in series production development 4. Internationale Fachtagung Ottomotorisches Klopfen Berlin 2013
- Smallbone , A. , Bhave , A. Advanced simulations of knocking and mega-knocking combustion events in highly boosted DISI engines 10. Internationales Symposium für Verbrennungsdiagnogstik Baden-Baden 2012
- Dahnz , C. , Spicher , U. Irregular combustion in supercharged spark ignition engines - pre-ignition and other phenomena International Journal of Engine Research 2010 11 485
- Peters , N. , Kerschgens , B. , Jochim , B. , Paczko , G. Mega-knock in super-charged gasoline engines interpreted as a localized developing detonation 4. Internationale Fachtagung Ottomotorisches Klopfen Berlin 2013