20.500.12556/RUL-148698 Wear of hydraulic pump with real particles and medium test dust In this study, long-term tests were conducted to evaluate the effects of wear particles and test dust on the degradation of external gear pump performance. The results of the hydraulic measurement showed that the hydraulic pump tested with wear particles can operate for 624 h with a cleanliness level of 22/21/19 according to the standard ISO 4406. The pump tested with test dust failed after 5.3 min of operation at a cleanliness level of 21/21/21. Thus, accelerated testing of gear pumps can be performed with a reasonable amount of added test dust, which can significantly reduce the time and cost of long-term testing of hydraulic pumps. Wear measurements of volume loss and estimated wear coefficient confirmed the influence of the worn surfaces of the tested pumps on the measured leakage flow. It has been shown that medium test dust effectively accelerate long-term tests of hydraulic gear pumps. hydraulic gear pumps wear particles medium test dust level of cleanliness wear coefficient volume loss leakage flow hidravlične zobniške črpalke obrabni delci srednji testni prah razred čistoče obrabni koeficient obrabni volumen pretok puščanja true false true Angleški jezik Slovenski jezik Članek v reviji 2023-08-29 14:25:02 2023-08-29 14:25:05 2024-02-14 03:46:37 0000-00-00 00:00:00 2023 0 0 13 str. Vol. 532/533, art. 205101 Nov. 2023 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.22 0043-1648 10.1016/j.wear.2023.205101 162606851 1-s2.0-S0043164823004842-main.pdf 1-s2.0-S0043164823004842-main.pdf 1 8627E2D86143B36F5638C655B5DFEC1F 8630725dccd3cdb69c232d4d3f5adea8bfacbb66b23aa170c421def3e2aa73b3 91421426-ca4f-11ee-a430-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=180793 https://www.sciencedirect.com/science/article/pii/S0043164823004842 1 13fa21bd-4667-11ee-a605-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=173034 Fakulteta za strojništvo 0 0 0