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- Autors
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Sorokivsky O. I. Shvedov V. M.
- Issue
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Hoisting and transport equipment, 2022, №1(67)
- Pages
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17-28
- DOI
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10.15276/pidtt.1.67.2022.02
- Abstract
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The car's lubrication system is one of the most important systems to keep engine parts from running. The serviceability of the lubrication system in the car cannot guarantee its smooth operation. An integral part of this system is the oil and its quality. Engine oil is the oil used in internal combustion engines, reduces friction in it and, in all other respects, makes the engine capable of running out of the resource specified by the manufacturer.
Object of research: motor oils, used oils and oils with impurities. Subject of research: critical loads on the oil film, anti-wear properties of oils, the effect of temperature on the performance of motor oils. The purpose of the study: to investigate the performance properties of motor oils according to the developed method.
During the research, a number of popular oil samples were tested for their performance characteristics, such as: critical load, its dependence on the current on the motor winding, and the intensity of wear of the samples. The obtained results are summarized in the table, and also for clarity the images of prototypes after researches are presented. The testing was performed on an established friction machine, which is intended for rapid testing of oil and was improved for flow testing of oil samples.
It has been experimentally determined that most oils have similar characteristics and show a similar result regardless of the change in operating temperature. The cheapest oils stand out significantly from the bulk, they can withstand much lower critical loads than more expensive oils.
After testing, we obtained prototypes with noticeable surface defects due to friction of the elements without a layer of oil. These samples were damaged during the squeezing of the oil film from the contact area, which indicates the quality of the oil and its anti-wear properties according to the results shown in the table.
Testing of oils with additives showed a significant increase in the performance properties of oils. This indicates the effectiveness of the use of additives to protect the engine from rapid wear of its parts and components.
- Keywords
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motor oil, friction, wear, strength, load
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