Proceedings Vol. 31 (2025)
ENGINEERING MECHANICS 2025
May 12 – 14, 2025, Medlov, Czech Republic
Copyright © 2025 Institute of Theoretical and Applied Mechanics of the Czech Academy of Sciences, Prague
ISBN 978-80-86246-99-4 (electronic)
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)
list of papers scientific commitee
pages 85 - 88, full text
This article compares the efficiency of three selected hydraulic sources: a fixed displacement pump with a relief valve, a pressure compensated pump, and a pump with Load-Sensing control. The study investigates how pump speed reduction impacts the efficiency of each source. An experimental circuit was used to measure input power and output power, evaluating efficiency across varying flow rates and pressure drops. The analysis determines which hydraulic source exhibits the highest efficiency and whether efficiency gains from speed reduction are consistent across different loads.
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Ownership of copyright in original research articles remains with the Authors, and provided that, when reproducing parts of the contribution, the Authors acknowledge and/or reference the Proceedings, the Authors do not need to seek permission for re-use of their material.
All papers were reviewed by members of the scientific committee.
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