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Influence of piston ring profiles and oil temperature distribution on cylinder liner lubrication of a marine two-stroke engine
1
Faculty of Transport
of Warsaw University of Technology.
Publication date: 2019-07-01
Combustion Engines 2019,178(3), 257-263
KEYWORDS
ABSTRACT
In the paper a comprehensive model of a piston-ring-cylinder (PRC) system has been presented. The local thickness of the oil film can be compared to height of the combined surface roughness of a cylinder liner and piston rings. Equations describing the mixed lubri-cation problem based on the empirical mathematical model formulated in works of Patir, Cheng and Greenwood, Tripp have been ap-plied. The main parts of the model have been experimentally verified abroad by the author at the marine engine designing centre. In contrast to the previous papers of the author concerning the PRC system of combustion engines, new calculation results for a ma-rine two-stroke engine have been presented. Firstly the right selection of barrel-shaped sliding surface of piston rings has been analysed. Secondly the influence of oil temperature distribution along the cylinder liner on the lubrication of the PRC system has been assessed. The developed model and software can be useful for optimization of the PRC system design.
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CITATIONS (4):
1.
Numerical Analysis of the System Piston-Ring-Cylinder of an Automotive IC Engine
Andrzej Wolff
SAE Technical Paper Series
Andrzej Wolff
SAE Technical Paper Series
2.
The use of the gas flow model to improve the design of the piston-rings-cylinder system of a diesel engine
G Koszalka
IOP Conference Series: Materials Science and Engineering
G Koszalka
IOP Conference Series: Materials Science and Engineering
3.
Influence of engine load on piston ring pack operation of an automotive IC engine
Andrzej Wolff, Grzegorz Koszałka
Combustion Engines
Andrzej Wolff, Grzegorz Koszałka
Combustion Engines
4.
Frictional Losses of Ring Pack in SI and HCCI Engine
Grzegorz Koszalka, Andrzej Wolff
Energies
Grzegorz Koszalka, Andrzej Wolff
Energies
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