Збірник наукових праць

DOI: https://doi.org/10.32515/2664-262X.2025.12(43).2.188-195

Research on the Reliability and Frequency of Replacement of Engine Airfilters

Yuri Novitskyi

About the Authors

Yuri Novitskyi, PhD Student, National University of Life and Environmental Sciences of Ukraine, Kyiv, Ukraine, https://orcid.org/0000-0003-1115-1747, e-mail: Novickii_yurka@ukr.net

Abstract

The article examines key aspects of reliability and justification of the frequency of replacement of air filters in internal combustion engines. The optimal air filter replacement interval is critical for ensuring efficient engine operation and reducing wear on parts, minimizing fuel costs, and optimizing the efficiency of mobile energy resources. The purpose of this article is to analyze the factors that affect the reliability of engine air filters and to justify the optimal replacement interval based on statistical analysis. Research methods are considered, including laboratory and operational tests and the collection of statistical information. The limit state of the engine air filter is assessed based on a set of direct and indirect signs. The results of the replacement frequency of air filters in Mazda cars are presented with their statistical processing. Calculations have established the following indicators for the replacement frequency of engine air filters: the average replacement frequency is 10.1 thousand km; the standard deviation of the average replacement frequency is 2.99 thousand km; the coefficient of variation is 0.44; the shift in the beginning of the dispersion of the average replacement frequency is 3.25 thousand km. The confidence interval limits for the average frequency of engine air filter replacement for the normal distribution law have been established: 6.03 thousand km – lower confidence limit; 14.17 thousand km – upper confidence limit. The conclusions emphasize the importance of a comprehensive approach to determining the frequency of replacement of engine air filters, taking into account operating conditions, the quality of filter elements, and the manufacturer's plant. To achieve efficiency in use and savings in maintenance and repair costs, it is recommended to take into account the actual operating conditions of mobile power equipment and the technical condition of the filters

Keywords

engine airfilter, reliability, mobile power unit, replacement frequency

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References

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