Results 1 to 10 of about 1,339 (188)
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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Aerospace, 2023 To study the influence of orifice spacing on the oil–air two-phase flow and the oil capture efficiency of an oil scoop in an under-race lubrication system, an experimental platform for under-race lubrication was built, and a calculation model for the oil–
Le Jiang +5 more
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TechnologiesThe lubrication of high-speed bearings in variable-speed transmission systems is typically achieved through radial under-race lubrication devices, where the performance of the oil capture section significantly affects the overall lubrication performance.
Xiaozhou Hu, Kang Duan, Bingkun Han
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Novel Design and Simulation of Curved Blade Oil Scoop With High Oil Capture Efficiency
Chinese Journal of Aeronautics, 2021 Abstract As the load and working environment temperature increasing, high efficiency oil lubrication was urgently needed for the main bearing of aeroengine. However, the low oil capture efficiency of radial oil scoop affects the application of under-race lubrication structure with radial oil collection.
Yaguo Lyu
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Experimental Study on Oil Supply Efficiency of Under-Race Lubrication Based on Radial Oil Scoop
IOP Conference Series: Earth and Environmental Science, 2021 Abstract Under-race lubrication is an efficient lubrication method of aeroengine bearings for achieving high DN values. In this paper, an experimental study on oil supply efficiency of under-race lubrication structure based on high rotation speed and small size radial oil scoop is carried out.
Jingwen Qin +4 more
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Assessment of the Oil Scoop Capture Efficiency in High Speed Rotors [PDF]
Journal of Engineering for Gas Turbines and Power, 2018 Experimental research was conducted into a scooped rotor system that captures oil from a stationary jet and directs it through passages within the shaft to another axial location. Such a system has benefits for delivering oil via under-race feed to aeroengine bearings where direct access is limited.
Paleo Cageao, Paloma +3 more
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Influence of Li Grease Thickener Types on Film Thicknesses Formed between Smooth and Dented Surfaces
Tribology Online, 2017 The lubricant film thickness behaviors of lithium (Li) thickener type greases and their base oil were investigated for the contact between a glass disk and a smooth/dented steel ball using an optical interferometry. The main focus is to understand grease
Kazumi Sakai +5 more
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Chemical Composition and Antifungal Activity of the Essential Oil of from Marche Region (Italy)
Natural Product Communications, 2018 The present study reports the results of gas chromatography-mass spectrometry (GC/MS) analyses of the essential oil from flowering aerial parts of Cotinus coggygria Scoop.
Daniele Fraternale, Donata Ricci
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Geofluids, 2018 Hosting an emerging play of the Springer/Goddard shale, the South Central Oklahoma Oil Province (SCOOP), is also the main production field for the underlying Woodford Formation.
Qinhong Hu +3 more
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LubricantsThe oil collection performance of a planetary oil scoop is important for the lubrication of planetary bearings. This study investigates the effects of operating and structural parameters on oil collection performance and performs multi-objective ...
Xingming Chen +5 more
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