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Analysis of Oil Consumption by Observing Oil Behavior Around Piston Ring Using a Glass Cylinder Engine
ISSN: 0148-7191, e-ISSN: 2688-3627
Published September 01, 1989 by SAE International in United States
Annotation ability available
The reduction of engine oil consumption rate is one of the important concerns for automotive engineers. However, it has been difficult to solve this subject, since the oil consumption mechanism has not yet been elucidated.
In this study, to clarify the oil loss mechanism via the piston rings, a transparent glass cylinder engine was used to observe oil behavior between cylinder wall and piston surface. For photographic observation, a high speed camera, a still camera. and a TV camera were used. Since the new photographic system by using TV camera with a synchro - flash and a synchro-memory was applied, it was also possible to observe the oil behavior in detail.
Moreover, a new visual method by which colored oil was injected from the various points on the piston surface and traced was developed for easy analysis of oil movement around the piston ring.
Results obtained for this visualization indicated that oil was mainly drawn into the combustion chamber through the gap areas in compression ring joints at high vacuum generated under engine braking conditions and the oil passing over the peripheral surface of the oil control ring was more apparent when the piston rotational movements were greater.
|Technical Paper||Study of Transient Oil Consumption of Automotive Engine|
|Technical Paper||Real-Time Measurement of Engine Oil Economy|
|Technical Paper||Oil Transport Analysis of a Cylinder Deactivation Engine|
CitationSaito, K., Igashira, T., and Nakada, M., "Analysis of Oil Consumption by Observing Oil Behavior Around Piston Ring Using a Glass Cylinder Engine," SAE Technical Paper 892107, 1989, https://doi.org/10.4271/892107.
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