Mobile source emissions standards are becoming more stringent and particulate emissions from gasoline direct injection (GDI) engines represent a particular challenge. Gasoline particulate filter (GPF) is deemed as one possible technical solution for particulate emissions reduction. In this work, a study was conducted on eight formulations of lubricants to determine their effect on GDI engine particulate emissions and GPF performance. Accelerated ash loading tests were conducted on a 2.4L GDI engine with engine oil injection in gasoline fuel by 2%. The matrix of eight formulations was designed with changing levels of sulfated ash (SASH) level, Zinc dialkyldithiophosphates (ZDDP) level and detergent type. Comprehensive evaluations of particulates included mass, number, size distribution, composition, morphology and soot oxidation properties. GPF performance was assessed through filtration efficiency, back pressure and morphology. It was determined that oil formulation affects the particulate emission characteristics and subsequent GPF performance.
Effect of Lubricant Oil Properties on the Performance of Gasoline Particulate Filter (GPF)
Sae Int. J. Fuels Lubr
Sae International Journal of Fuels and Lubricants
SAE 2016 International Powertrains, Fuels & Lubricants Meeting ; 2016
Sae International Journal of Fuels and Lubricants ; 9 , 3 ; 650-658
2016-10-17
9 pages
Conference paper
English
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