Abstract
It is widely known that NOx emission from an engine plays an important role in the formation of varnish and sludge in engine oil. Therefore, the authors measured the concentrations of nitric and nitrous acid ions in lubricating oil and analyzed the process through which NOx mixes into the lubricating oil. The latter was found to occur through oil film on the cylinder wall and through crankcase gas, the amount being proportional to the NOx concentration of nitrous acid ions when the engine temperature drops results in the condensation of water vapor contained in crankcase gas.
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Schedule a callMore From: JSME international journal. Ser. 2, Fluids engineering, heat transfer, power, combustion, thermophysical properties
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