Quantifying the Contribution of Lubrication Oil Carbon to Particulate Emissions from a Diesel Engine

摘要

Lubrication oil consumption has traditionally been a concern for well used engines, when wear produces larger gaps that contribute to transport of lubrication oil into the combustion chamber and out the exhaust port. The consumption of oil is aconcern for proper engine operation. Aside from severe oil burners which produce visible smoke, the contribution of lubrication oil to emissions has been a minor concern. New engines properly maintained produce very little particulate matter (PM) from lubrication oil. The sensitivity of modern emission control catalysts to sulfur poisoning has led to increased interest in determining the quantity of oil transported through the cylinder and out the exhaust port. Also, although the mass of lubrication oil consumption is quite low, it has been implicated as a source of nano-particles.