INFLUENCE OF TEMPERATURE OF THE ENVIRONMENT ON PROPERTIES OF MOTOR OILS


ABSTRACT

Dmitrichenko N.F., Milanenko A.A., Bilyakovich O.N., Savchuk A.N., Turitsa Yu.A. Influence of temperature of the environment on properties of motor oils. Visnyk National Transport University. Series «Technical sciences». Scientific and Technical Collection. - Kyiv: National Transport University, 2020. - Issue 1 (46).

The article presents the results of studies that were conducted on the SMC-2 tribometer according to the ring-sleeve scheme in conditions of non-shocking sliding friction due to the rotational motion of the roller. In order to perform experimental studies of the processes of friction and wear of metal vapors and to study mechanical-physicochemical processes in the interaction of a steel-steel pair, in our experiment we studied motor all-season oils of different chemical composition on the rheological basis: motor oils of semisynthetic origin TEMOL 10 synthetic origin and TEMOL Premium synthetic origin origin of TEMOL Premium 5W-40. The aforementioned oils were tested for 15 min under conditions of temperature rise from minus 180C to plus 750C.

The purpose of the work is to minimize the friction processes in the conditions of forced increase of the volume temperature of engine oil in engines of type D-241 and engine of concern Volkswagen VAG ASV 1.9 TDI.

The method of investigation is the experimental determination of the rheological features of motor oils and the antifriction properties of friction pairs.

According to the results of experimental studies, it is established that the stability of the formation of film thickness with increasing temperature, starting from low temperatures, gives synthetic oils some advantages at low-temperature starting, that is, to the conditions of realization of mixed friction (lubrication starvation). Semi-synthetic oil has some advantages in the formation of the thickness of the lubricating layer under conditions of liquid friction at moderate temperatures, which is explained by the formation of a thickness of greater magnitude, has better viscoelastic properties in these conditions of fluid friction. It is established that oils of semisynthetic and synthetic origin have excellent antifriction properties and this can be explained by their stable to mechanical degradation properties in the conditions of accelerated warming of the internal combustion engine.

KEYWORDS: ENGINE OIL, RHEOLOGICAL CHARACTERISTICS, ANTIFRICTION PROPERTIES, FILM THICKNESS.

REFERENCES

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  3. L. McMillan, SAE Tech. Pap. Ser. 770373 (1977). [in English].
  4. Aksenov AF Friction and wear of metals in hydrocarbon liquids / AF. Aksenov. - M .: Mechanical Engineering, 1977. - 152 h. [in Russian].
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  • M .: Mechanical Engineering, 1986. - 224 p. [in Russian].
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AUTHOR

Dmytrychenko Nykolay F., Ph.D., Engineering (Dr.), National Transport University, professor department of Manufacturing repair and materialoved, e-mail: dmitrichenko@ntu.edu.ua, tel. (044)2808203, Ukraine, 01010, Kyiv, Omelyanovich Pavlenko str. 1, of. 318, orcid.org/0000-0003-4223- 1838

Milanenko Alexandr A., associate professor, National Transport University, associate professor department of Manufacturing repair and materialoved, e-mail: : milanmasla@gmail.com, tel. (044)2801886, Ukraine, 01010, Kyiv, Omelyanovich Pavlenko str. 1, of. 102, orcid.org/0000-0002-2423-2346

Bilyakovych Oleg N., associate professor, National Aviation University, associate professor department of technologies of air-ports, e-mail: oleg65@voliacable.com, tel. (044)4067694, Ukraine, 03680, Kyiv, b. Cosmonaut of Komarova, 1, of. 1.409, orcid.org/0000-0002-2423-2346

Savchuk Anatoliy N, associate professor, National Transport University, associate professor department of Manufacturing repair and materialoved, e-mail: tolik_savchuk@ukr.net , tel. (044)2801886, Ukraine, 01010, Kyiv, Omelyanovich Pavlenko str. 1, of. 102, orcid.org/0000-0001-5460-4879

Turitsa Yuliya A., associate professor, National Transport University, associate professor department of Manufacturing repair and materialoved, e-mail: yuliya_tur@ukr.net, tel. (044)2801886, Ukraine, 01010, Kyiv, Omelyanovich Pavlenko str. 1, of. 102, orcid.org/0000-0002-2205-0426

Kosenko Maksim I.,, graduate student, National Transport University, Kyiv, Ukraine, kosenko171194@gmail.com / 0000-0002-5155-1828

REVIEWER

Gutarevich Y.F. Ph.D., Engineering (Dr.), National Transport University, professor department of motors and heating, Kyiv, Ukraine.

Tamargazin O.A., Ph.D., Engineering (Dr.), National Aviation University, professor department ecology and safety of vital functions, Kyiv, Ukraine.

Article language: Ukrainian

Open Access: http://publications.ntu.edu.ua/visnyk/46/102.pdf

Print date: 15.04.2020

Online publication date: 27.10.2020


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