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Comparison of leakage level in water and oil hydraulics
Advances in Mechanical Engineering, 2017 The objective of this research was an in-depth analysis of energy losses in hydraulic systems. Energy losses were analysed on the basis of the leakage in the annular gap between the spool of hydraulic directional control valves and the hole channel.
Ervin Strmčnik, Franc Majdič
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Sliding properties of anodized aluminium alloy tested in water and hydraulic oil [PDF]
Scientific ReportsLong operation and efficiency of hydraulic valves are often limited by the construction and design of the chosen valve. Faster switching of control valves can also be achieved by reducing the mass of the moving spool through the use of different ...
Ana Trajkovski +5 more
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Nihon Kikai Gakkai ronbunshu, 2021 The bent-axis-type axial piston pump is a type of positive-displacement machinery that is better equipped to solve environmental problems than the swash-plate-type piston pump.
Kazuhiko TANAKA +4 more
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Записки Горного института, 2021 One of the development priorities in oil and gas industry is to maintain gas and oil pipeline networks and develop pipeline-connected gas and oil fields of the Arctic zone of the Russian Federation, a promising region the resource potential of which will
Alexander K. Nikolaev +1 more
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FluOil: A Novel Tool for Modeling the Transport of Oil-Particle Aggregates in Inland Waterways
Frontiers in Water, 2022 Spilled oil in inland waterways can aggregate with mineral and organic particles to form oil-particle aggregates (OPAs). OPAs can be transported in suspension or deposited to the bed. Modeling the fate and transport of OPAs can provide useful information
Yilan Li +6 more
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地质科技通报, 2022 Lacustrine limestone and shale reservoirs are both developed in the Da′anzhai Member of Gongshanmiao Oilfield, Sichuan Basin. Whether fractures are developed or not is the key to the reservoirs in the Da'anzhai Member.
Feng Wu +6 more
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Scour protection test for submarine pipelines under alternating tidal current
You-qi chuyun, 2022 Many oil and gas pipelines have to be laid on the seabed during the deep development of marine oil and gas resources, but the submarine pipeline suspension due to souring under marine hydrodynamic conditions is the important factor that leads to the ...
Zhiyong ZHANG +4 more
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Examination of Viscosity Effect on Cavitating Flow inside Poppet Valves Based on a Numerical Study
Applied Sciences, 2021 The higher susceptibility to cavitation in poppet valves due to the lower viscosity of water than the traditionally used mineral oil poses a challenge in fluid transmission technology.
Cong Yuan, Lisha Zhu, Shiqi Liu, He Li
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, 2021 The drilling fluids should exhibit shear thinning characteristics to have less resistance at high shear rates. Nanoparticles can enhance the rheological properties of drilling fluids using different mechanisms. Nanomaterials are engineered materials with
E. Okoro +4 more
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A new method for identifying micro fractures and characterizing fractures of different scales
Frontiers in Earth Science, 2023 Oil and gas exploration professionals have begun to focus more on unconventional oil and gas reserves in recent years as a result of their increased efforts.
Zheng Fu +4 more
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