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Investigation of Internal Thermal Impact Effect on Motorcycle Catalytic Converter Activity and Microstructure
ISSN: 0148-7191, e-ISSN: 2688-3627
Published January 15, 2003 by SAE International in United States
Annotation ability available
Chinese new legislations on two wheels and mopeds have been published recently. Depending on the latest exhaust statistic analyses, with the resulting of tighter limits, the application of catalytic converters is becoming a prevalent and a cost-efficient solution for Chinese motorcycle manufacturers.
The phenomenon of exhaust temperature changes rapidly during real driving process is well known as one of major destructive factors which have effects upon converter's durability.
One 125 cm3 motorcycle is selected as a typical model in this research project. Exhaust temperature of the 125 cm3 motorcycle is measured and recorded during the process of ECE 40 driving cycle. A simulation test system has been set up successfully depending on those temperature data. Conversion ratio of converter sample lost distinctly after 18 hours' thermal impact tests.
After further analyses, there were not evident changes in microstructure and substance on the surface of converter. But the O2 store capacity reduced obviously and it was believed as the reason for conversion ratio loss by far.
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CitationManqun, L., Bin, J., Xicheng, Y., Yabing, J. et al., "Investigation of Internal Thermal Impact Effect on Motorcycle Catalytic Converter Activity and Microstructure," SAE Technical Paper 2003-32-0059, 2003, https://doi.org/10.4271/2003-32-0059.
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