Prediction of Combustion Chamber Deposit Growth in SI Engines

972835

10/01/1997

Event
International Fuels & Lubricants Meeting & Exposition
Authors Abstract
Content
Combustion chamber deposit (CCD) formation in SI engines is a complex phenomenon which is dependent on a number of fuel and engine parameters. A mathematical model has been developed, based upon a previously proposed mechanism of CCD formation, which describes the physical and chemical processes controlling the growth of deposits in SI combustion chambers. The model allows deposit thickness to be predicted as a function of time, taking into account gasoline composition and factors influenced by engine operating conditions. Piston top deposit thicknesses predicted by the model for 38 unadditivated fuels show a strong correlation with data from three different bench engine tests. The model offers the possibility of predicting the amount of CCD produced by unadditivated gasolines for a range of engine designs, operating conditions and test durations.
Meta TagsDetails
DOI
https://doi.org/10.4271/972835
Pages
18
Citation
Price, R., Spink, C., and Morley, C., "Prediction of Combustion Chamber Deposit Growth in SI Engines," SAE Technical Paper 972835, 1997, https://doi.org/10.4271/972835.
Additional Details
Publisher
Published
Oct 1, 1997
Product Code
972835
Content Type
Technical Paper
Language
English