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Reduction of Exhaust Smoke & Carbon Deposit at Exhaust Port in Two-Stroke Gasoline Engines
Technical Paper
871216
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English
Abstract
This paper deals with the generation mechanism of exhaust port clogging from carbon deposit and visible exhaust smoke as well as the method to reduce them. Consequently, it was found that the selection of appropriate exhaust port shape and the reduction of distillate of high boiling point mineral oil in the engine oil were effective to reduce exhaust port clogging from carbon deposit. While, increased exhaust gas temperature at the rear outlet end of the muffler and reduced reaction energy (measured by D.S.C.-a method for thermal analysis) in the engine oil were found to be effective to reduce visible exhaust smoke. It is desired that not only engine and related components but also oil should be improved from now on.
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Authors
Citation
Yashiro, Y., "Reduction of Exhaust Smoke & Carbon Deposit at Exhaust Port in Two-Stroke Gasoline Engines," SAE Technical Paper 871216, 1987.Also In
References
- Sugiura K. Kagaya M. “A Study of Visible Smoke Reduction from a Small Two-Stroke Engine Using Various Engine Lubricants” SAE Paper 770623 1977
- Soullard G.J. van Quaethoven F. “Polyisobutylen. A New Synthetic Material for Lubrication” SAE PAPER 710730 1971