Elastohydrodynamic Lubrication (EHL) of Piston Rings in the Internal Combustion Engine

The paper analyzes the numerical model of elastohydrodynamic lubrication (EHL) of piston rings in the cylinder liner of the internal combustion engine (ICE). Authors take into account reactions of the lubricating layer, the pressure force of the piston rings on the cylinder wall, forces of the gas pressure in the cylinder, the friction force between the upper edge of the piston ring and the piston groove. A simulation model was developed in the Fortran program and authors have analyzed characteristics and forms of piston rings in the ICE.