Studies on dynamic viscosity changes of the engine’s lubrication oil depending on the pressure

• Autorzy: Sikora G.
• Języki publikacji: EN

Abstrakty

EN

This paper is a part of the wider author’s research on the development of the new mathematical model for description of the viscosity changes of the lubrication oil in the exploitation time. Pressure of the oil is a variable parameter in the combustion engine and depends on many design parameters such as oil pump efficiency, geometry of the channels and lubricated element. It depends also on the exploitation parameters, such as rotational speed of the engine or contamination degree of the oil filter. So big amount of the factors, which have an influence on the pressure, resulted in the decision to examine, how big influence has a pressure in the oil viscosity. For the researches, the oil samples from the different combustion engines, both petrol and diesel, with different capacities, were taken into account. In each case, for the examination were taken samples both for the fresh oil and used oil from the change. Results of this research are shown in the tabular in correlation to the engines specification. In the next researches, after collecting all the oil ageing data, author will examine the pressure distribution in the slide bearing. After that it will be will possible to estimate the importance of the pressure changes for the proper work of the engine.

Słowa kluczowe

EN

oil ageing; viscosity characteristics; ageing model; rheology

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2013
• Tom: Vol. 20, No. 4
• Strony: 405--409
• Opis fizyczny: Bibliogr. 5 poz., rys.

Twórcy

autor

Sikora G.

• Gdynia Maritime University Department of Mechanical Engineering Morska Street 81-87, 81-225 Gdynia, Poland tel.: [phone]

Bibliografia

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• [1] Czaban, A., The Influence of Temperature and Shear Rate on the Viscosity of Selected Motor Oils, Solid State Phenomena, Vol. 199, pp. 188-193, 2013.
• [2] Miszczak, A., Experimental Values of Temperature Distribution in a Slide Bearing Sleeve Lubricated with Non-Newtonian Oils, Polish Maritime Research, Vol. 12, No. 3 (45), pp. 16-26, 2005.
• [3] Sikora, G., Miller, H., The Analysis of Changes in Total Base Number and the Flash Point in the Exploited Engine Oil, Journal of KONES Powertrain and Transport, Vol. 19, No. 3, pp. 395-398, 2012.
• [4] Sikora, G., Miszczak, A., The Influence of Oil Ageing on the Change of Viscosity and Lubricity of Engine Oil, Solid State Phenomena, Vol. 199, pp. 182-187, 2013.
• [5] Wierzcholski, K,. The Effect of the Force of Inertia and Variable Oil Viscosity on the Pressure Distribution in a Journal Bearing of Infinite Length, Wear, Vol. 45, Is. 1, pp. 1-16, 1977.