Experimental Investigation of Oil Accumulation in Second Land of Internal Combustion Engines
Affiliation:
1. Mechanical Engineering Department, Middle East Technical University, 06531 Ankara, Turkey
Abstract
Blowback of engine oil suspended in combustion gases, when the gas flows from the piston second land back into the combustion chamber, is believed to contribute to oil consumption and hydrocarbon emissions in internal combustion engines. Oil accumulation in the region between top and second compression rings is a factor that influences this phenomenon. The effects of individual parameters, such as oil film thickness and viscosity, however, have still not been understood. The present study was aimed at constructing an experimental setup to study the effect of oil film thickness on oil accumulation in the second land of internal combustion engines. Due to the inherent difficulties of experimentation on production engines, a modeled piston-cylinder assembly was constructed. Total oil accumulation in the modeled second land after a single piston stroke was measured and compared to oil consumption in operating engines.
Publisher
ASME International
Subject
Mechanical Engineering,Energy Engineering and Power Technology,Aerospace Engineering,Fuel Technology,Nuclear Energy and Engineering
Reference15 articles.
1. Hanaoka, M., Ise, A., Nagasaka, N., Osawa, H., Arakawa, Y., and Obata, T., 1979, “New Method for Measurement of Engine Oil Consumption (S-Trace Method),” SAE Paper No. 790936. 2. Wahiduzzaman, S., Keribar, R., Dursunkaya, Z., and Kelley, F. A., 1992, “A Model for Evaporative Consumption of Lubricating Oil in Reciprocating Engines,” SAE Paper No. 922202. 3. Hewitt, G. F., and Hall-Taylor, N. S., 1970, Annular Two-Phase Flow, Pergamon Press, New York, pp. 136–142. 4. Ishii, M., and Grolmes, M. A., 1975, “Inception Criteria for Droplet Entrainment in Two-Phase Concurrent Film Flow,” AIChE J., 21, pp. 308–318. 5. Ishii, M., and Mishima, K., 1989, “Droplet Entrainment Correlation in Annular Two-Phase Flow,” Int. J. Heat Mass Transfer, 32, pp. 1835–1846.
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献
|
|