Engine oil-derived emissions and their balance for the DI diesel engine
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Due to the increasingly demanding emission limits the understanding of the contributions of the lubrication oil sources to the engine emission becomes more important. The reduction of these contributions allows the decrease of particulate emissions through their oil and ash fractions. The Institute for Internal Combustion Engines (Lehrstuhl fur Verbrennungskraftmaschinen, VKA) at the Technical University Aachen (RWTH Aachen, Germany) has examined the influence of the oil consumption of individual engine components in a FVV research project. Conclusions on the particulate emission of a diesel engine due to engine oil consumption have been achieved with the aid of detailed particulate analysis. The influence of the emissions of ash-forming elements on engine oil component deposits has been examined with a complementing endurance run with an exhaust aftertreatment system. Also, the contributions of the engine oil-derived emissions have been balanced.
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