Effect of Ecological Oils on the Quality of Materials of Hydraulic Pump Components

Majdan, Radoslav; Tkáč, Zdenko; Abrahám, Rudolf; Stančík, Bohuslav; Kureková, Milena; Paulenka, Radoslav

doi:10.4028/www.scientific.net/amr.801.1

Cited by 7 publications

(5 citation statements)

References 5 publications

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“…Since the certified reference material, or reference material for TAN determination is available, the laboratory prepared an internal standard [12]. Regular measurement of this standard before every measurement on the measuring date of samples is demonstrated in the form of a quality control chart (Fig.…”

Section: Measurement Resultsmentioning

confidence: 99%

Verification and Comparison of Two Tribodiagnostic Methods for Analyzing of the Worn out Oils in Service

Mihalčová

2015

KEM

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The paper deals with comparison and verification of two standard methods for measuring the total acid number of used oils. This is a tribodiagnostic method used to the detection of important quality parameters of oils in service, which determine the degradation of oil filling. This significantly affects the life cycle of oil and, consequently, the lubrication system. The methods for measuring aircraft motor and insulating oils are compared. The method procedures, preparation titration solutions, solvents, through the use of the test sample and electrodes to the accuracy of the measurement on the sample oils are compared. It compares the process of preparation methods of titrating solution, solvents, samples and fills through the use of electrodes to the accuracy of the measurement on the sample oils. From measurements of the samples accuracy and validity of both methods using statistical processing of measurement results is calculated. It utilizes internal control of measurements by means of an internal standard and also inter-laboratory comparison of measurement results.

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Section: Measurement Resultsmentioning

confidence: 99%

Verification and Comparison of Two Tribodiagnostic Methods for Analyzing of the Worn out Oils in Service

Mihalčová

2015

KEM

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“…Fluids require monitoring of parameter quality, so the final state is determined based on their parameters [32]. Oil purity is one of the most important characteristics of any hydraulic system [15]. The characteristics of hydraulic oil according to which the quality of oil can be concluded are certainly: density, • viscosity, • humidity.…”

Section: Measurements At Maximum Pump Pressures •mentioning

confidence: 99%

Analysis of the influence of hydraulic fluid quality on external gear pump performance

Novaković¹,

Radovanović²,

Zuber³

et al. 2022

Eksploatacja i Niezawodność – Maintenance and Reliability

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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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“…The hydrostatic pump belongs to one-way hydrostatic pumps, which are used in the latest Zetor Forterra tractors for a common gear-hydraulic fill. The test device published by Hujo et al (2012), Kosiba et al (2013), Majdan et al (2013) and Tkáč (2006) was designed at the Department of Transport and Handling, Faculty of Engineering, Slovak University of Agriculture in Nitra (Fig. 1).…”

Section: Methodsmentioning

confidence: 99%

Evaluation of new biodegradable fluid on the basis of accelerated durability test, FTIR and ICP spectroscopy

Tulík¹,

Hujo²,

Kosiba³

et al. 2017

Res. Agric. Eng.

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Tulík J., Hujo Ľ., Kosiba J., Jablonický J., Jánošová M. (2017): Evaluation of new biodegradable fluid on the basis of accelerated durability test, FTIR and ICP spectroscopy. Res. Agr. Eng., 63: 1-9.The paper deals with the properties of newly developed synthetic biodegradable fluid in terms of its operational and physico-chemical properties. The evaluated fluid is a new biodegradable fluid MOL Farm UTTO Synt, which belongs to the group of universal gear-hydraulic fluids. At the beginning, the fluid was subjected to accelerated durability test under laboratory conditions, with monitoring its impact on technical conditions of the used hydraulic pump UD 25. After that, the FTIR spectroscopy analysis was performed, with monitoring thermal oxidation, oxidation by acid products, water content and additives depletion. Depletion of additives was also monitored by the ICP spectroscopy. Based on these results, it can be stated that the newly developed fluid has good operational and physico-chemical properties after the durability test and is suitable for further testing under operational conditions without a risk of damaging agricultural machines.

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Effect of Ecological Oils on the Quality of Materials of Hydraulic Pump Components

Cited by 7 publications

References 5 publications

Verification and Comparison of Two Tribodiagnostic Methods for Analyzing of the Worn out Oils in Service

Verification and Comparison of Two Tribodiagnostic Methods for Analyzing of the Worn out Oils in Service

Analysis of the influence of hydraulic fluid quality on external gear pump performance

Evaluation of new biodegradable fluid on the basis of accelerated durability test, FTIR and ICP spectroscopy

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