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Evaluation of Reaction Kinetics Eliminates Diesel Knock— The M-Combustion System of MAN
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Abstract
MIXTURE formation and combustion impose contradictory demands on the high-speed diesel engine. A study of reaction kinetics reveals rules for eliminating the resulting drawbacks, combustion noise, and exhaust smoke.
These rules were applied in developing the M-combustion system of MAN, in which a fuel film is sprayed on the combustion-chamber wall and drawn off by a high-speed air swirl. Deposition of fuel on the wall at the proper time reduces exhaust smoke and insures smooth operation and low sfc over a wide speed range.
Ready cold-starting is obtained even with high-octane gasolines which the M-engine is capable of burning without operating roughly. The multi-fuel characteristic of the M-system covers petroleum distillates with end points between 100 and 750 F. Indicator diagrams show a smooth pressure rise and absence of combustion knock.
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Meurer, J., "Evaluation of Reaction Kinetics Eliminates Diesel Knock— The M-Combustion System of MAN," SAE Technical Paper 560024, 1956, https://doi.org/10.4271/560024.Also In
References
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- VDI-Forschungsheft, March/April 1936 1 31 “Spektraluntersuchung des Verbrennungs-vorganges,” Beck G. Erichsen. C.
- Automobiltechnische Zeitschrift, Vol. 39 October 1936 501 515 “Beitrag zum Verbren-nungsvorgang in der Dieselmaschine,” Karde. K.
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