Friction reduction for engine components
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.
- Inventors:
- Issue Date:
- Research Org.:
- George Washington Univ., Washington, DC (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1824009
- Patent Number(s):
- 11020933
- Application Number:
- 16/290,648
- Assignee:
- The George Washington University (Washington, DC)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B05 - SPRAYING OR ATOMISING IN GENERAL B05D - PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
B - PERFORMING OPERATIONS B32 - LAYERED PRODUCTS B32B - LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- DOE Contract Number:
- AC26-04NT41817; RDS 41817M3459
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 03/01/2019
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Hsu, Stephen M., Jing, Yang, Mo, Yufei, Hua, Dongyun, and Chen, Ming. Friction reduction for engine components. United States: N. p., 2021.
Web.
Hsu, Stephen M., Jing, Yang, Mo, Yufei, Hua, Dongyun, & Chen, Ming. Friction reduction for engine components. United States.
Hsu, Stephen M., Jing, Yang, Mo, Yufei, Hua, Dongyun, and Chen, Ming. Tue .
"Friction reduction for engine components". United States. https://www.osti.gov/servlets/purl/1824009.
@article{osti_1824009,
title = {Friction reduction for engine components},
author = {Hsu, Stephen M. and Jing, Yang and Mo, Yufei and Hua, Dongyun and Chen, Ming},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2021},
month = {6}
}
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Works referenced in this record:
Internal combustion engine with localized lubrication control of combustion cylinders
patent, September 2006
- Vuk, Carl T.; Whiting, Todd Mathew
- US Patent Document 7,104,240
Method of planarizing polycrystalline diamonds, planarized polycrystalline diamonds and products made therefrom
patent, December 1995
- Malshe, Ajay P.; Brown, William D.; Naseem, Hameed A.
- US Patent Document 5,472,370
Piston apparatus and methods
patent, January 2001
- McFarland, James; Falkenrath, Jack Dean
- US Patent Document 6,170,454
Workpiece having a tribologically useable surface and method for producing such a surface
patent-application, January 2003
- Klink, Ulrich; Flores, Gerhard; Abeln, Tobias
- US Patent Application 10/191203; 20030021711
Vane-type rotary compressor with rotary sleeve
patent, March 1987
- Sakamaki, Hiroshi; Sugishita, Susumu; Horikoshi, Yukio
- US Patent Document 4,648,819
Diamond composite films for protective coatings on metals and method of formation
patent, July 1997
- Ong, Tiong P.; Shing, Yuh-Han
- US Patent Document 5,645,900
Method of making valve guide having textured external surface
patent, April 2007
- Livingston, Howard
- US Patent Document 7,198,554
Cylinder
patent-application, November 2010
- Urabe, Mitsuru; Murata, Hirokazu
- US Patent Application 12/680960; 20100288222
Hybrid Dimple-And-Void Auxetic Structures With Engineered Patterns For Customized NPR Behavior
patent-application, September 2018
- Bertoldi, Katia; Guerrero, Fabian Enrique Sanchez; Javid, Farhad
- US Patent Application 15/542612; 20180264774
Relieved and Filled Cylinder Surface
patent, December 1950
- Bramberry, Harry M.
- US Patent Document 2,534,408
Method of coating a silicon or silicide substrate
patent, August 2001
- Turchan, Manuel C.; Mistry, Pravin
- US Patent Document 6,274,206
Method of Forming an Oxide Coating with Dimples on its Surface
patent-application, October 2008
- Nie, Xueyuan; Zhang, Jingzeng
- US Patent Application 11/733013; 20080248214