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Analysis of the influence of hydraulic fluid quality on external gear pump performance
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University of Novi Sad, Technical Faculty “Mihajlo Pupin”, Djure Djakovica bb, 23000 Zrenjanin, Serbia
University of Novi Sad, Faculty of Technical Sciences, Trg Dositeja Obradovica 6, 21000 Novi Sad, Serbia
Publication date: 2022-06-30
Eksploatacja i Niezawodność – Maintenance and Reliability 2022;24(2):260-268
  • Analysis of the efficiency of the external gear pump by monitoring the parameters.
  • Measurements at maximum pump pressures showed a drastic drop in its flow.
  • Testing and analysis of hydraulic working fluid.
  • Filtration of hydraulic oil and repair of damaged gaps increase the pump's efficiency.
The basis of every hydraulic system is based on energy transformations, which are realized through hydraulic working fluid. Hydraulic oils are certainly subject to changes within their structure, meaning the basic characteristics and parameters of hydraulic oil, such as density, viscosity, humidity. The oils that are exploited are exposed to the process of degradation, which largely leads to significantly poorer quality of hydraulic fluid. The paper deals with the influence of changes in the characteristics of the hydraulic fluid on the hydraulic operating parameters of the gear pump installed on the hydraulic press. The parameters refer to pressure, flow, and temperature, as well as the quality of hydraulic oil, which affects the volumetric efficiency of the pump, and the results presented in the conclusion are based on the measured values of parameters before and after corrective measures. The control of parameters aims to increase the efficiency and reliability of the hydraulic system, a way of modern detection of deviations of parameters from standard, required values.
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