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Oil Consumption Sources in a Modern Gasoline Engine Including Contribution of Blow-by Separator and Turbocharger: An Experimental Study Based on the Use of Radiotracers
ISSN: 1946-3952, e-ISSN: 1946-3960
Published October 25, 2010 by SAE International in United States
Citation: Delvigne, T., "Oil Consumption Sources in a Modern Gasoline Engine Including Contribution of Blow-by Separator and Turbocharger: An Experimental Study Based on the Use of Radiotracers," SAE Int. J. Fuels Lubr. 3(2):916-924, 2010, https://doi.org/10.4271/2010-01-2256.
Minimizing engine oil consumption of modern engines has become an important issue and there is a need for better understanding associated sources and mechanisms. An innovative method based on the use of radiotracer compounds that are representative of oil distillation interval has been presented in a previous paper. This paper presents a methodology to evaluate and quantify oil consumption sources in a production turbocharged spark ignition engine at different speed and load conditions. A specific experimental set-up was used to measure independently and in real-time contribution of piston ring package, blow-by circuit, and turbocharger on oil consumption. Results show how contribution of each consumption source varies with engine operating conditions.