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Piston Slap Noise of Indirect Combustion Diesel Engine
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English
Abstract
Diesel trucks have four major noise sources engine, cooling fan, exhaust systems and tyres.
It is generally found that on current trucks engine radiated noise is the most important source, the latter being mainly produced by piston slap. Particularly for reducing the noise of IDI engines, where combustion noise is comparatively low, control of piston slap is most important.
This paper gives some calculated results to predict piston behavior and compares them with measured information on engine noise and cylinder liner vibration where piston slap control measures have been taken.
From the experiments carried out at Mitsubishi Motors Corporation it is concluded that offsetting the piston pin is both the easiest and cheapest method of controlling piston slap on current production engines.
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Authors
Citation
Usami, T., Wada, S., and Sonoda, S., "Piston Slap Noise of Indirect Combustion Diesel Engine," SAE Technical Paper 750801, 1975, https://doi.org/10.4271/750801.Also In
References
- Ishizuka M. “Some Approach for Noise Reduction of High Speed Diesel Engine” Technical Review of Mitsubishi Heavy Industries Ltd. 9 5
- Fielding B. J. Skorecki J. “Identification of Mechanical Sources of Noise in a Diesel Engine: Sound Originating from Piston Slap” IME Proceedings 1967-70 184 46
- Laws A.M. Parker D. A. Turner B. “Piston Movement in the Diesel Engine” 10th International Congress on Combustion Engines Washington 5-9 April 1973 809 833
- Ungar E. E Ross D. “Piston Slap Noise in Reciptocating Machinery” BBN Report No. 1106 1964
- Priede T. Haddad S. D. Pullen H. L. “Relation between Combustion and Mechanically Induced Noise in Automotive Diesel Engines” 15-FISITA 1974
- Feb. 1970