Results 21 to 30 of about 14,758 (224)
Complexity, 2020 To provide a basic guidance for the selection of nozzle layout, a mathematical model of the impingement depth for helical gears under oil jet lubrication is established.
Yu Dai +3 more
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Nucleation of jet engine oil vapours is a large source of aviation-related ultrafine particles
Communications Earth & Environment, 2022 Jet engine lubrication oil is an efficient nucleation agent that likely contributes to high levels of ultrafine particles near airports contributing to poor air quality, suggest laboratory thermodenuder experiments and observations near Frankfurt ...
Florian Ungeheuer +10 more
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Lubricants, 2023 Oil lubrication is widely adopted in rolling bearings, the characteristics of which affect the oil film formation and friction state, and also the heat generation and dissipation characteristics.
Baogang Wen +3 more
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Visualization of piston engine cylinder oil-jet lubricating process
Journal of Physics: Conference Series, 2019 Topicality, purpose, objects, means, methods and some results concerning experimental research of oil-jet supply cylinder of a high-speed low-sized piston engine due to spraying oil from connecting rod special holes are presented. The straight visualization of this process by means of a breadboard plant with optical transparent cylinder and piston made
S V Putintsev +3 more
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Mechanism and Experimental Study on Electrostatic Atomization Using Needle-Shaped Electrodes
Lubricants, 2023 The conventional pneumatic Minimum Quantity Lubrication (MQL), when not properly designed, may have poor atomization and insufficient wetting performance, resulting in higher oil mist concentration and poor film formation ability in the cutting zone. The
Hao Ma, Min Yang
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Studies on Lubrication of Rolling Bearing with Oil Jet (1st Report)
Transactions of the Japan Society of Mechanical Engineers, 1955 Using the ball bearing 6307 instead of the roller bearing N 307, similar results to the first report have been obtained concerning the temperature rise, coefficient of friction, rate of heat transfer and the lowest allowable oil viscosity. The results of the grease lubrication which is antipodal to the forced lubrication in its nature are also added.
Fujio HIRANO, Eiichi OHTA, Tetsu FUJII
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Case Studies in Thermal Engineering, 2023 Due to the improvement in the performance of aero-engines and the continuous size reduction, efficient under-race lubrication is becoming more and more important to provide the proper amount of lubricant oil for the main shaft rolling bearings.
Le Jiang, Yaguo Lyu, Zhenxia Liu
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Journal of Applied Fluid Mechanics, 2023 To discuss the lubrication characteristics of roller-sliding bearing under oil-injected lubrication, the CFD method was introduced into the fluid-structure interaction model to realize the transient simulation of oil-air two-phase flow (OATPF). The volume of fluid (VOF) method is applied to capture the oil-air interface.
J. J. Zhang +4 more
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Studies on Lubrication of Ball Bearing with Oil Jet (3rd Report)
Transactions of the Japan Society of Mechanical Engineers, 1953 In the previous paper we reported results of the experiment on forced lubrication for the purpose of cooling of ball bearing, but applied load on the bearing was light. We repeated the same experiment as previously reported at higher load. Further we measured change of electric contact between outer and linner races of the bearing and obtained some ...
Fujio HIRANO +3 more
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MachinesThe involute gear with variable tooth thickness lacks established methods for calculating meshing heat and studying oil-jet lubrication and cooling effects.
Huicheng Zhang, Yongping Liu, Junhai Guo
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