Near-wall serpentine cooled turbine airfoil

Lee, Ching-Pang

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Title: Near-wall serpentine cooled turbine airfoil

Abstract

A serpentine coolant flow path (54A-54G) formed by inner walls (50, 52) in a cavity (49) between pressure and suction side walls (22, 24) of a turbine airfoil (20A). A coolant flow (58) enters (56) an end of the airfoil, flows into a span-wise channel (54A), then flows forward (54B) over the inner surface of the pressure side wall, then turns behind the leading edge (26), and flows back along a forward part of the suction side wall, then follows a loop (54E) forward and back around an inner wall (52), then flows along an intermediate part of the suction side wall, then flows into an aft channel (54G) between the pressure and suction side walls, then exits the trailing edge (28). This provides cooling matched to the heating topography of the airfoil, minimizes differential thermal expansion, revives the coolant, and minimizes the flow volume needed.

Inventors:: Lee, Ching-Pang

Issue Date:: 2013-09-17

Research Org.:: Siemens Energy, Inc. (Orlando, FL)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1093556

Patent Number(s):: 8535006

Application Number:: 12/836,060

Assignee:: Siemens Energy, Inc. (Orlando, FL)

Patent Classifications (CPCs):: F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01D - NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES

F - MECHANICAL ENGINEERING F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04 F05D - INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS

Show more

F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01D - NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
F01D25/12 - Cooling
F01D5/187 - {Convection cooling}

F - MECHANICAL ENGINEERING F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04 F05D - INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
F05D2250/185 - serpentine-like
F05D2260/202 - by film cooling
F05D2260/22141 - using fins or ribs

Show less

DOE Contract Number:: FC26-05NT42644

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING

Citation Formats


                    Lee, Ching-Pang. Near-wall serpentine cooled turbine airfoil.  United States: N. p., 2013. 
        Web.

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                    Lee, Ching-Pang. Near-wall serpentine cooled turbine airfoil.  United States.

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                    Lee, Ching-Pang. Tue .  
        "Near-wall serpentine cooled turbine airfoil".  United States.  https://www.osti.gov/servlets/purl/1093556.

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@article{osti_1093556,

  title        = {Near-wall serpentine cooled turbine airfoil},

  author       = {Lee, Ching-Pang},

  abstractNote = {A serpentine coolant flow path (54A-54G) formed by inner walls (50, 52) in a cavity (49) between pressure and suction side walls (22, 24) of a turbine airfoil (20A). A coolant flow (58) enters (56) an end of the airfoil, flows into a span-wise channel (54A), then flows forward (54B) over the inner surface of the pressure side wall, then turns behind the leading edge (26), and flows back along a forward part of the suction side wall, then follows a loop (54E) forward and back around an inner wall (52), then flows along an intermediate part of the suction side wall, then flows into an aft channel (54G) between the pressure and suction side walls, then exits the trailing edge (28). This provides cooling matched to the heating topography of the airfoil, minimizes differential thermal expansion, revives the coolant, and minimizes the flow volume needed.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2013},

  month        = {9}

}

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Works referenced in this record:

Turbine airfoil with near wall multi-serpentine cooling channels
patent, May 2009

Liang, George
US Patent Document 7,534,089
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7534089

Turbine airfoil with a multi-impingement cooled spar and shell
patent, April 2010

Liang, George
US Patent Document 7,695,245
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7695245

Axial serpentine cooled airfoil
patent, August 2000

Manning, Robert Francis; Acquaviva, Paul J.; Demers, Daniel Edward
US Patent Document 6,099,252
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6099252

Article wall with interrupted ribbed heat transfer surface
patent, September 2003

Lee, Ching-Pang; Nichols, Glenn Herbert
US Patent Document 6,612,808
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6612808

Turbine blade with serpentine cooling circuit
patent, April 2010

Liang, George
US Patent Document 7,704,046
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7704046

Turbine airfoil with mini-serpentine cooling passages
patent, May 2009

Liang, George
US Patent Document 7,527,474
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7527474

Slant-tier turbine airfoil
patent, October 1999

Lee, Ching-Pang; Durgin, George A.; Harris, Robert
US Patent Document 5,967,752
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5967752

Turbine airfoil cooling system with axial flowing serpentine cooling chambers
patent, June 2009

Liang, George
US Patent Document 7,549,843
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7549843

Turbine blade with split impingement rib
patent, May 2010

Cherolis, Anthony P.; Page, Richard H.
US Patent Document 7,713,027
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7713027

Branch cooled turbine airfoil
patent, October 1999

Lee, Ching-Pang
US Patent Document 5,971,708
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5971708

Air cooled turbine airfoil with sequential cooling
patent, January 2012

Downs, James P.
US Patent Document 8,096,766
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8096766

Turbine blade turbulator cooling design
patent, March 2008

Dorling, Kevin; MacDonald, John Joseph
US Patent Document 7,347,671
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7347671

Serpentine cooling circuit and method for cooling tip shroud
patent, March 2010

Brittingham, Robert Alan; Ward, John D.
US Patent Document 7,686,581
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7686581

Cooled component
patent, September 2012

Kopmels, Michiel
US Patent Document 8,262,355
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8262355

Triple circuit turbine blade
patent, January 2006

Lee, Ching-Pang; Brassfield, Steven Robert; Prakash, Chander
US Patent Document 6,984,103
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6984103

Turbine blade with preferentially-cooled trailing edge pressure wall
patent, August 2001

Lee, Ching-Pang
US Patent Document 6,273,682
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6273682

Turbine airfoil with counter-flow serpentine channels
patent, November 2007

Liang, George
US Patent Document 7,296,972
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7296972

Serpentine microcircuit vortex turbulatons for blade cooling
patent, April 2010

Cunha, Francisco J.
US Patent Document 7,699,583
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7699583

Turbine airfoil with a near wall mini serpentine cooling circuit
patent, May 2010

Liang, George
US Patent Document 7,717,675
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7717675

Turbine shroud segment with serpentine cooling channels
patent, January 1996

Thompson, Ralph J.; Kane, Daniel E.
US Patent Document 5,486,090
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5486090

Airfoil with three-pass serpentine cooling channel and microcircuit
patent, November 2006

Cunha, Frank J.; Teller, Bret M.; Chon, Young H.
US Patent Document 7,131,818
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7131818

Parallel serpentine cooled blade
patent, November 2007

Lee, Ching-Pang; Wadia, Aspi Rustom; Brassfield, Steven Robert
US Patent Document 7,296,973
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7296973

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Near-wall serpentine cooled turbine airfoil

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Similar Records

Title: Near-wall serpentine cooled turbine airfoil

Abstract

Citation Formats

Turbine airfoil with near wall multi-serpentine cooling channels patent, May 2009

Turbine airfoil with a multi-impingement cooled spar and shell patent, April 2010

Axial serpentine cooled airfoil patent, August 2000

Article wall with interrupted ribbed heat transfer surface patent, September 2003

Turbine blade with serpentine cooling circuit patent, April 2010

Turbine airfoil with mini-serpentine cooling passages patent, May 2009

Slant-tier turbine airfoil patent, October 1999

Turbine airfoil cooling system with axial flowing serpentine cooling chambers patent, June 2009

Turbine blade with split impingement rib patent, May 2010

Branch cooled turbine airfoil patent, October 1999

Air cooled turbine airfoil with sequential cooling patent, January 2012

Turbine blade turbulator cooling design patent, March 2008

Serpentine cooling circuit and method for cooling tip shroud patent, March 2010

Cooled component patent, September 2012

Triple circuit turbine blade patent, January 2006

Turbine blade with preferentially-cooled trailing edge pressure wall patent, August 2001

Turbine airfoil with counter-flow serpentine channels patent, November 2007

Serpentine microcircuit vortex turbulatons for blade cooling patent, April 2010

Turbine airfoil with a near wall mini serpentine cooling circuit patent, May 2010

Turbine shroud segment with serpentine cooling channels patent, January 1996

Airfoil with three-pass serpentine cooling channel and microcircuit patent, November 2006

Parallel serpentine cooled blade patent, November 2007

Turbine airfoil with near wall multi-serpentine cooling channels
patent, May 2009

Turbine airfoil with a multi-impingement cooled spar and shell
patent, April 2010

Axial serpentine cooled airfoil
patent, August 2000

Article wall with interrupted ribbed heat transfer surface
patent, September 2003

Turbine blade with serpentine cooling circuit
patent, April 2010

Turbine airfoil with mini-serpentine cooling passages
patent, May 2009

Slant-tier turbine airfoil
patent, October 1999

Turbine airfoil cooling system with axial flowing serpentine cooling chambers
patent, June 2009

Turbine blade with split impingement rib
patent, May 2010

Branch cooled turbine airfoil
patent, October 1999

Air cooled turbine airfoil with sequential cooling
patent, January 2012

Turbine blade turbulator cooling design
patent, March 2008

Serpentine cooling circuit and method for cooling tip shroud
patent, March 2010

Cooled component
patent, September 2012

Triple circuit turbine blade
patent, January 2006

Turbine blade with preferentially-cooled trailing edge pressure wall
patent, August 2001

Turbine airfoil with counter-flow serpentine channels
patent, November 2007

Serpentine microcircuit vortex turbulatons for blade cooling
patent, April 2010

Turbine airfoil with a near wall mini serpentine cooling circuit
patent, May 2010

Turbine shroud segment with serpentine cooling channels
patent, January 1996

Airfoil with three-pass serpentine cooling channel and microcircuit
patent, November 2006

Parallel serpentine cooled blade
patent, November 2007