| Summary: | 碩士 === 國立臺灣師範大學 === 工業教育學系 === 106 === In this study, nano silica (nano SiO2) was added in to the original named engine oil. It also be experimented on the four-stroke motorcycle. The characteristics of driving-experiment, which includes speed performance, specific fuel consμmption, and the exhaust emissions, such as HC, CO and PM, were estimated as experimental results for the further benefit evaluation. Nano SiO2-engine oil with 0.5, 1.5, 2.5, 3.5 and 4.5 wt.% included have been conducted. It came out that the best tribology experimental came to the engine oil with 3.5 wt.% nano SiO2 added. During the tribology experimental of nano SiO2-engine oil, the engine oil with 3.5 wt.% nano SiO2 added decreased an average of 42.42 % abrasion loss. The fuel consμmption (km/L), climbing capacity, constant velocity testing. The engine oil with 3.5wt.% nano SiO2 added increased the fuel consμmption, speed of fixed throttle testing, climbing capacity and 0.3μm particle with 15.22 %, 10.3 %, 15.78 % and 142.48 %, respectively. Besides, it also decreased the CO and HC with 16.9 % and 8.36 %, respectively. Overall, the engine oil with 3.5 wt.% nano SiO2 added improved the effect of lubricating. In the future, the examination of nano material includes motorcycle fuel consμmption, engine temperature and exhaust emissions would be conducted.
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