Results 21 to 30 of about 14,675 (206)
Oil-Jet Lubrication of Epicyclic Gear Trains
, 2023 Predicting and understanding the evolving oil distribution is the major key for the design of efficient and reliable cooling and lubrication systems in gear boxes. The complexity of multiple rotating and moving parts and the bad accessibility necessitate costly and complicated experimental approaches.
Haber, Matthias +2 more
openaire +2 more sources
Energies, 2019 The oil jet lubrication performance of a high-speed and heavy-load gear drive is significantly influenced and determined by the oil jet nozzle layout, as there is extremely limited meshing clearance for the impinging oil stream and an inevitable blocking
Yu Dai +4 more
doaj +1 more source
Identification and source attribution of organic compounds in ultrafine particles near Frankfurt International Airport [PDF]
Atmospheric Chemistry and Physics, 2021 Analysing the composition of ambient ultrafine particles (UFPs) is a challenging task due to the low mass and chemical complexity of small particles, yet it is a prerequisite for the identification of particle sources and the assessment of potential ...
F. Ungeheuer +2 more
doaj +1 more source
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
doaj +1 more source
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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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
doaj +1 more source
High Speed Visualizations of oil Jet Lubrication for Aero-engine Gearboxes
Energy Procedia, 2016 Abstract Augmenting gearing systems efficiency is a key issue in developing innovative aero-engines with low specific fuel consumption. The transmission system directly affects the engine overall efficiency, therefore it is essential maximizing its performance.
Massini, Daniele +4 more
openaire +2 more sources
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
doaj +1 more source
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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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
doaj +1 more source