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Correlation of Engine Noises With Combustion Phenomena
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English
Abstract
A BETTER knowledge of the nature and causes of preignition and of its frequency during normal engine operation has been obtained by instrumenting a 9/1-compression-ratio engine on a test stand and an engine in an automobile with rate of change of pressure pickups.
Photographic records of the oscilloscope traces produced by this instrumentation have enabled the determination of:
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1.
The relative tendency for preignition or postignition to occur and the relation of these phenomena to engine or car operating conditions.
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2.
The physical causes of the noises accompanying the several types of preignition.
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3.
The effect of retarded spark timing on deposit-induced preignition.
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4.
The significance of the “key-off” method of fuel rating.
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Authors
Citation
Meagher, R., Johnson, R., and Parthemore, K., "Correlation of Engine Noises With Combustion Phenomena," SAE Technical Paper 550269, 1955, https://doi.org/10.4271/550269.Also In
References
- SAE Quarterly Transactions Vol. 6 October 1952 724 752 “Flame Photographs of Autoignition Induced by Combustion-Chamber Deposits,” Withrow L. L. Bowditch F. W.
- SAE Transactions Vol. 62 1954 40 49 “Deposit-Induced Ignition-Evaluation in Laboratory Engine,” Hirschler D. A. McCullough J. D. Hall C. A.
- SAE Transactions Vol. 62 1954 50 56 “Occurrence of Pre-ignition in Present-Day Cars in Normal Service,” Winch R. F.
- Proceedings of API Vol. 33 No. III 1953 137 150 “Preignition in Automotive Engines,” Sabina J. R. Mikita J. J. Campbell M. H.
- SAE Transactions Vol. 62 1954 48 “Some Effects of Fuels and Lubricants on Autoignition in Cars on the Road,” Williams R. K. Landis J. R.
- SAE Transactions Vol. 62 1954 32 39 “Investigation of Pre-ignition in Engines,” Melby A. O. Diggs D. R. Sturgis B. M.