Browse Publications Technical Papers 2019-32-0570
2020-01-24

Study on Oil Consumption in Compact Motorcycle Engines 2019-32-0570

Because the scooter is convenient, the market continues increasing. As a result of market survey, it was revealed that the scooter repeated sudden acceleration and deceleration. Therefore, the oil consumption may occur in special pattern. The oil consumption is an important development target. On the other hand, the oil consumption is complicated phenomenon. In this study, the sulfur trace method was used for measurement of the oil consumption. When a throttle was closed and the intake pipe became the negative pressure, the SO2 emission (oil consumption) increases. Then, using a glass cylinder and a high-speed camera, motion of the engine oil was observed. It was revealed that the engine oil rises to the combustion chamber after stopping at the 4th Land. By a combination of the sulfur trace test and the visualization test, oil consumption phenomenon of the scooter was able to be understood.

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