著者

大平 哲也 池田 裕二 中島 健

出版者

一般社団法人日本機械学会

雑誌

日本機械学會論文集. B編 (ISSN:03875016)

巻号頁・発行日

vol.60, no.574, pp.2223-2228, 1994-06-25

被引用文献数

1

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Cyclic variations of CO and CO_2 emission were investigated in relation to in-cylinder pressure in a small two-stroke engine. High-speed exhaust gas sampling of 200 Hz was carried out at the exhaust port. The results obtained show that the time resolution of gas sampling was insufficient to account for the cycle-resolved fluctuations observed, but was sufficient to show cyclic variation of emissions. The concentrations of CO and CO_2 were measured with regard to the in-cylinder pressure and IMEP. The misfiring effect was examined from the time variations of CO and CO_2 concentrations. The cyclic variation of the ratio of CO to CO_2 and IMEP showed the same periodic pattern under light load condition.