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Continuous Measurement of Engine Oil Consumption Rate by the Use of 35S Tracer
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Event:
Fleet Week
Language:
English
Abstract
In the measurement of engine oil consumption the conventional radiometric method is more rapid and precise than the drain-weigh method, but the former method-a batch type-is inapplicable to measurements in transient engine operations which are inevitable in real driving. In the present study, a reliable method was developed to measure continuously the consumption rate through all phases of engine operation. Oleic acid sulfide containing S35 was selected as a radioactive tracer to be added to the engine oil. Engine exhaust gas containing the discharged oil was burned in an electric furnace and a gas burner and reacted with aqueous H2O2 solution, converting the S35O2 into H2S35O4. A plastic bead scintillator used for the detection of β-rays from the aqueous solution was sensitive enough to measure the consumption rate as low as 0.4 g/h. Some informative observations were also made on the oil consumption of the engine in transient and steady-state operations by use of this new measurement system.
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Citation
Kawamoto, J., Yamamoto, M., and Ito, Y., "Continuous Measurement of Engine Oil Consumption Rate by the Use of 35S Tracer," SAE Technical Paper 740543, 1974, https://doi.org/10.4271/740543.Also In
References
- Guinn V. P. Coit R. A. “Measuring Oil Consumption with Tritium Tracers.” Nucleonics 17 12 1959 112
- Starkman E. S. “A Radioactive Tracer Study of Lubricating Oil Consumption.” SAE Transactions 69 1961
- Caretta L. S. Starkman E. S. “A Tracer Method for Study of Exhaust Hydrocarbons-Combustion of Fuel-Oil Mixtures in a Wankel Engine.” Paper 680112 SAE Automotive Engineering Congress Detroit January 1968
- Warrick F. Dykehouse R. “An Advanced Radiotracer Technique for Assessing and Plotting Oil Consumption in Diesel and Gasoline Engines.” SAE Transactions 79 1970 paper 700052
- Orrin D.S. Coles B. W. “Effects of Engine Oil Composition on Oil Consumption.” SAE Transactions 80 1971 paper 710141
- Mayer W. J. Moore C. P. Krause C. P. Lange W. H. Murphy C. B. “Rapid, Precise Measurement of Engine Oil Economy by a Radiometric Method.” SAE Transactions 75 1967 paper 660058
- Knop R. C. “Evaluation of a Radiometric Method of Determining Engine Oil Economy.” Paper 690155 SAE Automotive Engineering Congress Detroit January 1969
- Mayer W. J. Krause D. P. Moore C. P. Murphy C. B. “Oil Consumption Measurements of Individual Cylinders in Automotive Engines.” Paper 700055 SAE Automotive Engineering Congress Detroit January 1970
- Tkachuk R. “A Continuous Flow Data Scintillation Detector for Aqueous Solution.” Canad. J. Chem. 40 1962 2348