Irregular combustion in supercharged spark ignition engines

Abstract

Downsizing is one of the most promising concepts to reduce fuel consumption of gasoline engines. However, it is currently limited by the occurrence of irregular combustion phenomena at high loads. This paper provides an overview of the combustion phenomena to be taken into account. At first, knock, extreme knock, surface ignition, and pre-ignition are briefly introduced by a description of their phenomenology. Since pre-ignition is the newest and least explored of these phenomena, the results of a study about its phenomenology and reasons for its occurrence are presented. Finally, auto-ignition in general is discussed, taking into account its occurrence, its effect, and its avoidance. Thereby, the general remarks about auto-ignition are related to the phenomena observable in real engines.

Keywords

spark ignition engine downsizing irregular combustion auto-ignition knock extreme knock surface ignition pre-ignition

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References

Rothe

Han

K.-M.

Spicher

Untersuchungen zur Ursache von Extremklopfen bei Motoren mit Direkteinspritzung. In Proceedings of the 15th Aachen Colloquium on Automobile and engine technology, Aachen 2006

Dahnz

Han

K.-M.

Spicher

Magar

Schießl

Maas

Investigations on pre-ignition in highly supercharged SI engines. SAE Int. J. Engines, 2010 3(1)214–224

Dahnz

Han

K.-M.

Spicher

Magar

Schießl

Maas

Vorentflammung bei Ottomotoren. Abschlussbericht über das FVV-Forschungsvorhaben no. 931., FVV Forschungsheft no. 907, 2010

Maas

Warnatz

Ignition processes in hydrogen-oxygen mixtures. Combustion and Flame, 1988 74(1)53–69

Esser

Maas

Warnatz

Chemistry of the auto-ignition in hydrocarbon air mixtures up to octane and its relation to engine knock. International Symposium on Diagnostics and modeling of combustion in reciprocating engines, JSME, 1985

Rangert

Hydrodynamic piston ring lubrication with reference to lubricant oil consumption. PhD Thesis, Chalmers University of Technology, Gothenburg 1974

Yilmaz

Tian

Wong

V. W.

Heywood

J. B.

The contribution of different oil consumption sources to total oil consumption in a spark ignition engine. SAE technical paper 2004-01-2909, 2004

Zeldovich

Y. B.

Librovich

V. B.

Makhviladze

G. M.

Sivashinsky

G. I.

On the development of detonation in a non-uniformly preheated gas. Astronautica Acta, 1970 15 313–321

Irregular combustion in supercharged spark ignition engines – pre-ignition and other phenomena

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