Results 1 to 10 of about 26,083 (287)
Modeling Noise Sources and Propagation in External Gear Pumps [PDF]
Energies, 2017 As a key component in power transfer, positive displacement machines often represent the major source of noise in hydraulic systems. Thus, investigation into the sources of noise and discovering strategies to reduce noise is a key part of improving the ...
Sangbeom Woo +3 more
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Models for Flow Rate Simulation in Gear Pumps: A Review [PDF]
Energies, 2017 Gear pumps represent the majority of the fixed displacement machines used for flow generation in fluid power systems. In this context, the paper presents a review of the different methodologies used in the last years for the simulation of the flow rates ...
Massimo Rundo
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Gear mesh geometry effect on performance improvement for external gear pumps [PDF]
MATEC Web of Conferences, 2019 The parameters of the involute and cycloidal gearing which influence on fluid volume at the tooth space are analysed. It is established that to a greater extent on the flow rate of the pump with involute gearing is influenced by the radial clearance ...
Ivanov Viktor +3 more
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The Influence of Radial and Axial Gaps on Volumetric Efficiency of External Gear Pumps
Energies, 2021 The design of gear pumps and motors is focused on more efficient units which are possible to achieve using advanced numerical simulation techniques. The flow that appears inside the gear pump is very complex, despite the simple design of the pump itself.
Paulina Szwemin, Wieslaw Fiebig
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Structural design and performance analysis of external gear pump for high viscosity polymer pumping [PDF]
Scientific ReportsHigh-viscosity gear pumps are key equipment for transporting highly viscous polymer media, and their performance is significantly influenced by the coupling effect of medium viscosity and operational parameters.
Baozhou Shi, Yongchao Yuan
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Evaluation of the Hydro—Mechanical Efficiency of External Gear Pumps
Energies, 2019 This paper proposes and describes a model for evaluating the hydro-mechanical efficiency of external gear machines. The model is built considering and evaluating the main friction losses in the machines, including the viscous friction losses at the tooth
Barbara Zardin +2 more
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Open-source spring-driven syringe pump with 3D-printed components for microfluidic applications [PDF]
HardwareXThe operation of microfluidic devices requires precise and constant fluid flow. Microfluidic systems in low-resource settings require a portable, inexpensive, and electricity-free pumping approach due to the rising demand for microfluidics in point-of ...
Se Been Park, Joong Ho Shin
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Cavitation analysis through CFD in industrial pumps: A review
International Journal of Thermofluids, 2023 Cavitation is one of the most detrimental fluid-dynamic anomalies that occur to turbomachines. It mainly affects machines characterized by high rotation speeds and clear distinctions between low and high pressure zones, where cavitation first appears ...
Francesco Orlandi +2 more
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External Gear Pump Performance With Graphene Hydraulic Fluid
ASME/BATH 2023 Symposium on Fluid Power and Motion Control, 2023 Abstract The literature reports that the addition of nanoparticles to hydraulic fluids significantly improves their fundamental properties such as viscosity index, lubricity, and anti-wear performance. Among the others, graphene-based nanomaterials are a potential candidate for hydraulic nanofluids due to their atomic thickness, high ...
Chiavola O. +3 more
openaire +3 more sources
New Method to Determine the Dynamic Fluid Flow Rate at the Gear Pump Outlet
Energies, 2022 External gear pumps are among the most popular fluid power positive displacement pumps; however, they often suffer from excessive flow pulsation transmitted to the downstream circuit.
Valeriy Sanchugov, Pavel Rekadze
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