期刊
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART D-JOURNAL OF AUTOMOBILE ENGINEERING
卷 217, 期 D3, 页码 183-191出版社
PROFESSIONAL ENGINEERING PUBLISHING LTD
DOI: 10.1243/09544070360550200
关键词
motorcycle engine; cold start; preheating; catalytic converter; heat-storing material
An experimental investigation on the cold-start idle condition of an electrically heated catalytic converter on a four-stroke engine has been carried out. The preheated temperature of the catalytic converter and the level of CO emission of the catalyst were studied, and other measured quantities included the exhaust gas temperatures at the mid-section and at the outlet of the catalytic converter and the concentration of CO. The preheated temperatures of the catalytic converter were varied from raw temperature (non-preheating) to 100, 140 and 180degreesC. The levels of CO emissions were set at 1.0, 1.5 and 2.0 per cent. The catalyst was tested with and without heat-storing material around the heater. The experimental results revealed that the catalytic converter with a preheated temperature of 180degreesC triggered an early catalytic reaction. A high-level CO setting has the same effect, with the optimum value at approximately 2.0 per cent.
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