Results 201 to 210 of about 14,758 (224)
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Volume 2: Turbo Expo 2004, 2004
In this study oil delivery to an aero-engine bearing via a targeted jet was investigated using a bearing chamber test rig. The rig contains a high-speed rotating shaft of engine representative geometry within a stationary Perspex housing. Oil is collected from feedholes leading from scoops (scallops) on the shaft.
C. W. Lee +4 more
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In this study oil delivery to an aero-engine bearing via a targeted jet was investigated using a bearing chamber test rig. The rig contains a high-speed rotating shaft of engine representative geometry within a stationary Perspex housing. Oil is collected from feedholes leading from scoops (scallops) on the shaft.
C. W. Lee +4 more
openaire +1 more source
Influence of temperature on dynamic contact characteristics of oil-jet lubricated rolling bearings
Proceedings of the Institution of Mechanical Engineers, Part K: Journal of Multi-body DynamicsThe temperature variation alters the contact state of each component during the operating process of oil-jet lubricated rolling bearings, which directly affects the dynamic performance of the bearing. However, previous studies on the dynamics of oil-jet lubricated rolling bearings do not comprehensively consider the influence of temperature factors ...
Wenbing Tu +4 more
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2012 Third International Conference on Digital Manufacturing & Automation, 2012
The method of designing and calculating the optimum oil-supply pressure for jet-lubricated high speed aviation spur gears applied in helicopter transmission is analysed. The optimum oil nozzle arrangement and oil jet velocity are obtained based on related theoretical and experimental research results. A thick-walled orifice is taken as the model of the
Huidong Yang, Shaojun Liu
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The method of designing and calculating the optimum oil-supply pressure for jet-lubricated high speed aviation spur gears applied in helicopter transmission is analysed. The optimum oil nozzle arrangement and oil jet velocity are obtained based on related theoretical and experimental research results. A thick-walled orifice is taken as the model of the
Huidong Yang, Shaojun Liu
openaire +1 more source
Analyses on the Splashing Parameters of High-Speed Oil Impacted a Wall in Jet Lubrications
2009A new model for the free jet breakup is derived from the TAB theory to determine the size of breakup in the energy conservation law. In addition, the splash behavior of droplets after impingement is determined by the newly proposed model, which incorporates both the size and the number models based on Wu Ziniu’s phenomenological theory.
Le Gu +3 more
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Two-Way Coupled CFD Approach for Predicting Gear Temperature of Oil Jet Lubricated Transmissions
SAE International Journal of Commercial Vehicles, 2018<div>This article focuses on the development of a two-way coupled methodology to predict gear temperature of oil jet lubricated transmissions using commercial software for computational fluid dynamics simulation.
Shrikrishna Deshpande +4 more
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Experimental Investigation on Power Losses due to Oil Jet Lubrication in High Speed Gearing Systems
Volume 5B: Heat Transfer, 2017In order to reduce environmental and climate impact from air traffic, the main effort of aero-engine industry and research community is looking at a continuous increase in gearbox efficiency. With this kind of components every source of loss can be responsible for high heat loads; for this reason oil jet systems are used to provide proper cooling and ...
Massini, D. +4 more
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A new formulation for convective heat transfer in oil jet lubricated spur gears
Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering TribologyThis study aims to analyze thermal heat-transfer between an oil jet and a rotating spur gear using a novel experimental methodology 1 to have an analytical model based on lubrication conditions and geometric characteristics of spur gears.
Thibaut Torres +3 more
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Tribology International, 2015
Abstract As the gear speed becomes higher and higher in modern industry the influence of spin flow on lubricating oil jet must be taken into account in design of gearings. A multiphase flow model is established in computational fluid dynamics (CFD) to calculate the regimes of oil jet in spin flow.
Yanzhong Wang +3 more
exaly +2 more sources
Abstract As the gear speed becomes higher and higher in modern industry the influence of spin flow on lubricating oil jet must be taken into account in design of gearings. A multiphase flow model is established in computational fluid dynamics (CFD) to calculate the regimes of oil jet in spin flow.
Yanzhong Wang +3 more
exaly +2 more sources
Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 2021
Xiang Zhu
exaly
Xiang Zhu
exaly
A novel approach for identifying gas cavitation in oil jet pumps for lubrication systems:
2019Curkovne črpalke za olje so ključna komponenta mazalnih sistemov turbostrojev. S povečevanjem gostote moči pri turbostrojih se pojavlja problem kavitacije v omenjenih črpalkah, ki lahko ogroža varnost obratovanja. Med različnimi vrstami kavitacije v curkovnih črpalkah za olje ima posebno vlogo plinska kavitacija, ki znatno vpliva na učinkovitost ...
Gan, Shuyi +4 more
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