Results 191 to 200 of about 443 (225)
Evaluation of the Use of Different Sensitive Cardiac Biomarkers in Determining Myocardial Damage in Cows With Subclinical and Clinical Ketoses. [PDF]
Vet Med SciUztimür M, Ünal CN, Sağiroğlu M.
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Tribology Transactions, 2021
Churning loss and lubrication performance are key issues that need to be considered for the efficiency of electric vehicle reducers.
Ran Gong
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Churning loss and lubrication performance are key issues that need to be considered for the efficiency of electric vehicle reducers.
Ran Gong
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Determination of oil distribution and churning power loss of gearboxes by finite volume CFD method
Tribology International, 2017Abstract Sufficient oil supply of all machine elements in gearboxes is usually required to avoid damage and to reduce friction during operation. However, dip lubrication and injection lubrication always result in hydraulic gear power losses. Especially in high-speed and dip-lubricated gearboxes with high oil levels, churning losses can represent a ...
Hua Liu, Karsten Stahl, Thomas Lohner
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Tribology International, 2013
Abstract In this study gear oils were tested for power loss behaviour in a two stage multiplying gearbox, on a back-to-back test rig with recirculating power. The tests were performed at low input speeds and high input torques with oil sump temperature set free. A power loss model simulating the power loss mechanisms was implemented to evaluate gear
R Martins +2 more
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Abstract In this study gear oils were tested for power loss behaviour in a two stage multiplying gearbox, on a back-to-back test rig with recirculating power. The tests were performed at low input speeds and high input torques with oil sump temperature set free. A power loss model simulating the power loss mechanisms was implemented to evaluate gear
R Martins +2 more
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S111012 Churning Loss of Spur Gear in Oil Bath Lubrication
The Proceedings of Mechanical Engineering Congress Japan, 2012Kazuteru Nagamura, Kiyotaka Ikejo
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An experimental investigation of windage and oil churning power losses of gears and discs
Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 2022This study presents comparable sets of churning and windage power loss measurements of a gear. Measurements are performed under windage (air only) and churning (immersion in oil up to a certain level) to quantify load-independent power losses of a family of spur and helical gears along with representative discs. Aiming at quantifying the impact of gear
M Handschuh, A Guner, A Kahraman
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Oil distribution and churning losses of gearboxes: Experimental and numerical analysis
Tribology International, 2020Abstract Currently, energy efficiency represents one of the main requisites in mechanical design. Gearboxes play an important role in several industrial applications and, even if they are already characterized by high efficiency, their performance can still be improved, leading to energy saving and the reduction of pollutant emissions.
Marco Nicola Mastrone +3 more
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2025 6th International Conference on Mechatronics Technology and Intelligent Manufacturing (ICMTIM)
Yantai Guan +5 more
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Yantai Guan +5 more
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CFD Simulation for Reduction of Oil Churning Loss and Windage Loss on Aeroengine Transmission Gears
Volume 1: Aircraft Engine; Ceramics; Coal, Biomass and Alternative Fuels; Controls, Diagnostics and Instrumentation; Education; Electric Power; Awards and Honors, 2009In recent years, the demand for power generation capacity has increased considerably due to the electric drive of air conditioners and so on in the engines of civil aircraft. Therefore, it is estimated that power losses may increase in the gearbox because of generators and pumps that in turn augment fuel consumption.
Hidenori Arisawa +3 more
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