#7670. Drop-On-Demand Lubrication of Gears: A Feasibility Study

October 2026publication date
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Journal’s subject area:
Mechanical Engineering;
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Abstract:
Different lubrication methods such as oil dip or injection lubrication are used in gearboxes to lubricate tribological contacts and to dissipate frictional heat. To improve resource and energy efficiency, novel needs-based lubrication methods like the drop-on-demand lubrication are being developed. It includes an ink-jet nozzle driven by a piezo element to generate picoliter droplets injected to tribological contacts. This study evaluates the feasibility of drop-on-demand lubrication of gears.
Keywords:
contact resistance; drop-on-demand; friction; gears; heat balance; lubrication; power loss; temperature

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