点火系统使用因素对发动机HC及CO排放影响规律研究

The Study on the Effect of the Use Factors in Ignition System on Engine's HC and CO Emissions

通过对点火系统使用因素的改变,在特定的工况及运行条件下测试其发动机HC及CO排放变化,指出了点火使用因素对发动机HC排放有很大的影响,而对CO排放影响基本不大,不同使用因素对HC排放影响显著性不同,并且同一使用因素对HC排放影响在不同的工况下表现程度又有所不一致,即存在故障特征工况。

By changing the use factors in ignition system, the engine＇ s HC and CO emissions are tested in some particular working condition. The paper points out that use factors affect on HC emission very deeply, but little on CO emission, and different use factors work on HC in different level. At the same time the result shows that HC always changes with a use factor in unlikeness extent in different working condition, that is to say, there are fault characteristic working condition for the effect of use factors on engine＇s HC and CO emissions.