Wear of hydraulic pump with real particles and medium test dust

Nejc Novak (Author), Ana Trajkovski (Author), Marko Polajnar (Author), Mitjan Kalin (Author), Franc Majdič (Author)

Abstract

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.

Keywords

hydraulic gear pumps;wear particles;medium test dust;level of cleanliness;wear coefficient;volume loss;leakage flow;

Data

Language:	English
Year of publishing:	2023
Typology:	1.01 - Original Scientific Article
Organization:	UL FS - Faculty of Mechanical Engineering
UDC:	621.22
COBISS:	162606851
ISSN:	0043-1648
Views:	179
Downloads:	31
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	Slovenian
Secondary keywords:	hidravlične zobniške črpalke;obrabni delci;srednji testni prah;razred čistoče;obrabni koeficient;obrabni volumen;pretok puščanja;
Type (COBISS):	Article
Pages:	str. 1-13
Issue:	ǂVol. ǂ532/533
Chronology:	Nov. 2023
DOI:	10.1016/j.wear.2023.205101
ID:	19862008