| Issue |
MATEC Web Conf.
Volume 338, 2021
34th Scientific Conference: Problems of Working Machines Development (PRMR 2021)
|
|
|---|---|---|
| Article Number | 01010 | |
| Number of page(s) | 12 | |
| DOI | https://doi.org/10.1051/matecconf/202133801010 | |
| Published online | 25 June 2021 | |
Measurement of flow characteristics of a gear hydraulic pump by simulating the operating load of the tractor’s hydraulic system
1
Slovak University of Agriculture in Nitra, Department of Transport and Handling, 94976 Nitra, Slovakia
2
Faculty of Mechanical Engineering, UTP University of Science and Technology, al. Prof. S. Kaliskiego 7, 85-796 Bydgoszcz, Poland
* Corresponding author: lubomir.hujo@uniag.sk
The results of the work include research on changes in flow characteristics of gear hydraulic pump QHD 17 by simulating operating conditions on laboratory test equipment with assessment of influence of transmission-hydraulic fluid MOL Farm NH Ultra on technical and operational properties of hydraulic pump QHD 17. The laboratory test equipment makes it possible to repeatedly simulate real conditions under which the hydraulic system of the agricultural tractor operates, or to simulate the load with maximum pressure. By monitoring the change in the flow of the hydraulic pump at precisely determined intervals, which were 0 and 125 hours worked, the influence of the physical properties of the working fluid on the flow properties of the hydraulic pump was assessed and the measured data set was evaluated by mathematical-statistical analysis. Based on the physical properties of the tested MOL Farm NH Ultra fluid, which were determined from the samples taken at precisely determined intervals, no negative effect of the fluid itself as well as its properties on the flow efficiency of hydraulic pump QHD 17 was found.
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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