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.
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January 2005
Technical Papers
Experimental Investigation of Oil Accumulation in Second Land of Internal Combustion Engines
T. Icoz,
T. Icoz
Mechanical Engineering Department, Middle East Technical University, 06531 Ankara, Turkey
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Z. Dursunkaya
Z. Dursunkaya
Mechanical Engineering Department, Middle East Technical University, 06531 Ankara, Turkey
Search for other works by this author on:
T. Icoz
Mechanical Engineering Department, Middle East Technical University, 06531 Ankara, Turkey
Z. Dursunkaya
Mechanical Engineering Department, Middle East Technical University, 06531 Ankara, Turkey
Contributed by the Internal Combustion Division of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS for publication in the ASME JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Manuscript received by the ICE Division April 24, 2003; final revision received by the ASME Headquarters December 16, 2003. Associate Editor: D. Assanis.
J. Eng. Gas Turbines Power. Jan 2005, 127(1): 206-212 (7 pages)
Published Online: February 9, 2005
Article history
Received:
April 24, 2003
Revised:
December 16, 2003
Online:
February 9, 2005
Citation
Icoz, T., and Dursunkaya, Z. (February 9, 2005). "Experimental Investigation of Oil Accumulation in Second Land of Internal Combustion Engines ." ASME. J. Eng. Gas Turbines Power. January 2005; 127(1): 206–212. https://doi.org/10.1115/1.1805011
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