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The effect of the distribution of variable characteristics determining the asymmetry of the sealing rings sliding surfaces on the values of friction loss coefficients and other selected parameters of oil film
1
Faculty of Machines and
Transport at Poznan University of Technology
Publication date: 2017-11-01
Combustion Engines 2017,171(4), 107-116
KEYWORDS
ABSTRACT
The article presents the results of research on the effect of the change in coordinates that determine the location of the common vertex of the parabolas and ellipses demonstrating the asymmetric shape of the rings sliding surfaces on the change in the thickness of oil film, the amount of scraped oil, and the oil left on the cylinder wall, once a set of selected sealing rings has passed, as well as the results concerning friction losses. Mathematical relationships of the asymmetric shapes of the rings sliding surfaces were presented, and the values of coefficients characterizing selected parameters of oil film and friction losses were determined. It was confirmed that there is a large dependence of the coordinate values of the vertices determining the asymmetric shapes of these surfaces on the condition and cooperation between piston rings and the cylinder bearing surface, and mainly on the amount of the oil scraped in the selected engine strokes.
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CITATIONS (13):
1.
Technology for Obtaining Asymmetries of Stereometric Shapes of the Sealing Rings Sliding Surfaces for Selected Anti-Wear Coatings
Piotr Wróblewski
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SAE Technical Paper Series
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Ethanol/Gasoline Blends as Alternative Fuel in Last Generation Spark-Ignition Engines: A Review on CO and HC Engine Out Emissions
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The Economic Aspect of Using Different Plug-In Hybrid Driving Techniques in Urban Conditions
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Problems of Reducing Friction Losses of a Piston-Ring-Cylinder Configuration in a Combustion Piston Engine with an Increased Isochoric Pressure Gain
Piotr Wróblewski, Antoni Iskra
SAE Technical Paper Series
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Total Cost of Ownership and Its Potential Consequences for the Development of the Hydrogen Fuel Cell Powered Vehicle Market in Poland
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Nanomaterials
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Nanomaterials
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Experimental Studies of PowerCore Filters and Pleated Filter Baffles
Tadeusz Dziubak
Materials
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Materials
10.
Empirical study of the effect of the air filter on the performance and exhaust emissions of a diesel engine
Tadeusz Dziubak, Mirosław Karczewski, Ilona Dziobek
Combustion Engines
Tadeusz Dziubak, Mirosław Karczewski, Ilona Dziobek
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11.
Determining the Unit Values of the Allocation of Greenhouse Gas Emissions for the Production of Biofuels in the Life Cycle
Mariusz Niekurzak
Energies
Mariusz Niekurzak
Energies
12.
Novel Approach to Analyzing Friction Losses by Modeling the Microflow of Lubricating Oil between the Piston Rings and Cylinder in Internal Combustion Engines
Piotr Wróblewski, Stanisław Kachel
Energies
Piotr Wróblewski, Stanisław Kachel
Energies
13.
Experimental Analysis of the Influence of the Application of TiN, TiAlN, CrN and DLC1 Coatings on the Friction Losses in an Aviation Internal Combustion Engine Intended for the Propulsion of Ultralight Aircraft
Piotr Wróblewski, Robert Rogólski
Materials
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