Invention Grant
- Patent Title: Friction reduction for engine components
-
Application No.: US16290648Application Date: 2019-03-01
-
Publication No.: US11020933B2Publication Date: 2021-06-01
- Inventor: Stephen M. Hsu , Yang Jing , Yufei Mo , Dongyun Hua , Ming Chen
- Applicant: The George Washington University
- Applicant Address: US DC Washington
- Assignee: The George Washington University
- Current Assignee: The George Washington University
- Current Assignee Address: US DC Washington
- Agency: Crowell & Moring LLP
- Main IPC: B32B3/30
- IPC: B32B3/30 ; F02F1/20 ; B05D5/08 ; C23F1/02

Abstract:
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 texture 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.
Public/Granted literature
- US20190193372A1 Friction Reduction for Engine Components Public/Granted day:2019-06-27
Information query