Engine oil contribution to diesel exhaust emissions

Abstract

The reduction of harmful pollutant emissions as well as CO 2 emissions emanating from motor vehicles will be of considerable interest in the coming decades. Emissions legislation will be the guiding principle in the development of new technologies and vehicles. More attention will have to be paid to off-road vehicles, especially tractors, if the production of healthy food and the maintenance of a cleaner environment are not to be compromised. Therefore, one the biggest challenges facing the automotive industry is to improve fuel economy, both to conserve natural resources and to limit pollutants and CO 2 emissions. Better fuel efficiency and consequently lower emissions will require new materials, new lubricants and low-emission fuel. Engine lubricants help to improve vehicle efficiency but contribute engine exhaust emissions. This paper deals with the influence of engine lubricants on diesel exhaust emissions. Investigations have shown a clear effect of lubricant oil on emissions, which depends on lube oil characteristics, especially sulfur content, metal content, volatility and density.

Effects of hexagonal boron nitride based nanofluid on the tribological and performance, emission characteristics of a diesel engine: An experimental study

“…Lubricating oil also plays a significant role in reducing the emission standards of a diesel engine as it takes part in the combustion process by three different ways such as keeping the thin film of lubrication between cylinder liner and piston rings, lubrication in the crankshaft and the valve guides of the engine 3 . Gligorijevic et al 4 examined the effect of lubricating oil on the exhaust emissions of a diesel engine. Authors have considered mineral oil SAE 15W40 and synthetic oil (PAO) 5W40 to monitor the emission levels of a diesel engine.…”

Isolation and characterization of oleochemical compounds from watermelon seed

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“…In some patient, a medical difference among T1DM and T2DM isn't conceivable at appearance and autoantibodies are used to describe the sort of diabetes. Beta-cell autoantibodies are found only in T1DM patients due to the obliteration of Beta cells and hence reduced Insulin secretion [1,2].…”

Modeling and simulation of frictional energy loss in mixed lubrication of a textured piston compression ring during warm-up of spark ignition engine

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