Friction reduction for engine components

Title: 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 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.

Inventors:: Hsu, Stephen M.; Jing, Yang; Mo, Yufei; Hua, Dongyun; Chen, Ming

Issue Date:: 2019-04-02

Research Org.:: National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV, and Albany, OR (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1568138

Patent Number(s):: 10245806

Application Number:: 14/000,857

Assignee:: The George Washington University (Washington, DC)

Patent Classifications (CPCs):: F - MECHANICAL ENGINEERING F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04 F05C - INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES

B - PERFORMING OPERATIONS B05 - SPRAYING OR ATOMISING IN GENERAL B05D - PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL

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F - MECHANICAL ENGINEERING F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04 F05C - INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
F05C2253/083 - Directionally-solidified crystalline structure

B - PERFORMING OPERATIONS B05 - SPRAYING OR ATOMISING IN GENERAL B05D - PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
B05D5/08 - to obtain an anti-friction or anti-adhesive surface

C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23F - NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE
C23F1/02 - Local etching

F - MECHANICAL ENGINEERING F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04 F05C - INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
F05C2253/08 - Crystalline

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
B32B3/30 - characterised by a layer formed with recesses or projections, e.g. {hollows, grooves, protuberances, ribs

F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16C - SHAFTS
F16C33/1075 - {Wedges, e.g. ramps or lobes, for generating pressure}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T428/24851 - Intermediate layer is discontinuous or differential

F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02F - CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES
F02F1/20 - characterised by constructional features providing for lubrication

F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16C - SHAFTS
F16C2360/22 - Internal combustion engines

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T428/24355 - Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]

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DOE Contract Number:: AC26-04NT41817

Resource Type:: Patent

Resource Relation:: Patent File Date: 02/21/2012

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., 2019. 
        Web.

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                    Hsu, Stephen M., Jing, Yang, Mo, Yufei, Hua, Dongyun, & Chen, Ming. Friction reduction for engine components.  United States.

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                    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/1568138.

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@article{osti_1568138,

  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 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.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2019},

  month        = {4}

}

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Works referenced in this record:

Internal combustion engine with localized lubrication control of combustion cylinders
patent, September 2006

Vuk, Carl Thomas; Whiting, Todd Mathew
US Patent Document 7,104,240
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=7104240

Piston apparatus and methods
patent, January 2001

McFarland, Jr., James D.; Falkenrath, Jack Dean
US Patent Document 6,170,454
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=6170454

Vane-type rotary compressor with rotary sleeve
patent, March 1987

Sakamaki, Hiroshi; Sugishita, Susumu; Horikoshi, Yukio
US Patent Document 4,648,819
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=4648819

Method of making valve guide having textured external surface
patent, April 2007

Livingston, Howard M.
US Patent Document 7,198,554
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=7198554

Method of coating a silicon or silicide substrate
patent, August 2001

Turchan, Manuel C.; Mistry, Pravin
US Patent Document 6,274,206
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=6274206

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Similar Records

Title: Friction reduction for engine components

Abstract

Citation Formats

Internal combustion engine with localized lubrication control of combustion cylinders patent, September 2006

Piston apparatus and methods patent, January 2001

Vane-type rotary compressor with rotary sleeve patent, March 1987

Method of making valve guide having textured external surface patent, April 2007

Method of coating a silicon or silicide substrate patent, August 2001

Internal combustion engine with localized lubrication control of combustion cylinders
patent, September 2006

Piston apparatus and methods
patent, January 2001

Vane-type rotary compressor with rotary sleeve
patent, March 1987

Method of making valve guide having textured external surface
patent, April 2007

Method of coating a silicon or silicide substrate
patent, August 2001