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Low Noise Opposed Piston Two-Stroke Engine and Blower
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English
Abstract
The paper divides into two parts. First the investigation of the noise of an unconventional design of two cycle diesel engine, including the results of applying known noise reducing features to it. Then taking one component of that engine, the scavenge blower, and re-designing it from first principles to produce a low noise machine suitable for the low noise engine. The final assembly of engine and blower demonstrated that the noise that has been regarded the characteristic of the two cycle engine is in fact that of the Roots type blower and when eliminated the noise level can be quite low. The present test bed noise level of 97/98 dBA at 1 metre shows promise of this type of engine meeting the legislative requirements of the 1980's.
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Citation
Tryhorn, D., Pullen, H., and Grover, E., "Low Noise Opposed Piston Two-Stroke Engine and Blower," SAE Technical Paper 750840, 1975, https://doi.org/10.4271/750840.Also In
References
- Priede T. Grover E.C. Lalor N. ‘Relation between noise and basic structural vibration of diesel engines’ Paper 69045 S.A.E. Mid-Year Meeting Chicago May 1969
- Jenkins S.H. Lalor N. Grover E.C. ‘Designs aspects of low-noise diesel engines’ Paper 730246 International Automotive Engineering Congress Detroit January 1973
- Tryhorn D.W. ‘BICERA blade type blower’ The Shipbuilder & Marine Engineer 66 621 October 1959