Skip to Content
Find More Like This
Return to Search

Friction Reduction for Engine Components

United States Patent Application

View the Complete Application at the US Patent & Trademark Office
The present invention relates to techniques for lowering friction between moving surfaces of, for example, an internal combustion engine. Friction reduction is achieved by adding texture modifications to surfaces that come in contact with each other. Texture modifications that reduce friction in accordance with the present invention include dimples of varying geometries and depths ion the surfaces of components. The present invention also relates to the fabrication technique for applying the textures to the surfaces. In another embodiment, the patterned soft mask is applied onto a large surface (flat or curved including cylindrical rollers surfaces) to be followed by electrochemical etching to imprint the textures onto the component. And, in another embodiment, a diamond-like-carbon (DLC) film may be applied to the turbine component to also reduce friction.
Hsu, Stephen M. (Germantown, MD), Jing, Yang (Washington, DC), Mo, Yufei (Washington, DC), Hua, Dongyun (Washington, DC), Chen, Ming (Washington, DC)
The George Washington University (Washington DC)
14/ 000,857
February 21, 2012
[0002] This invention was made with government support under Department of Energy Prime Contract No. DOE/NETL DE-AC26-04NT41817-520.01.04 via Subcontract No RDS 41817M3459 awarded to George Washington University from Research and Development Solutions, LLC. The government has certain rights in the invention.