Turbine airfoil with ambient cooling system

Campbell, Christian X.; Marra, John J.; Marsh, Jan H.

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Title: Turbine airfoil with ambient cooling system

Abstract

A turbine airfoil usable in a turbine engine and having at least one ambient air cooling system is disclosed. At least a portion of the cooling system may include one or more cooling channels configured to receive ambient air at about atmospheric pressure. The ambient air cooling system may have a tip static pressure to ambient pressure ratio of at least 0.5, and in at least one embodiment, may include a tip static pressure to ambient pressure ratio of between about 0.5 and about 3.0. The cooling system may also be configured such that an under root slot chamber in the root is large to minimize supply air velocity. One or more cooling channels of the ambient air cooling system may terminate at an outlet at the tip such that the outlet is aligned with inner surfaces forming the at least one cooling channel in the airfoil to facilitate high mass flow.

Inventors:: Campbell, Jr, Christian X.; Marra, John J.; Marsh, Jan H.

Issue Date:: Tue Jun 07 00:00:00 EDT 2016

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

Sponsoring Org.:: USDOE

OSTI Identifier:: 1255970

Patent Number(s):: 9359902

Application Number:: 13/930,479

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
F01D5/186 - {Film 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
F05D2260/22141 - using fins or ribs

Show less

DOE Contract Number:: FC26-05NT42644

Resource Type:: Patent

Resource Relation:: Patent File Date: 2013 Jun 28

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING

Citation Formats


                    Campbell, Jr, Christian X., Marra, John J., and Marsh, Jan H. Turbine airfoil with ambient cooling system.  United States: N. p., 2016. 
        Web.

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                    Campbell, Jr, Christian X., Marra, John J., & Marsh, Jan H. Turbine airfoil with ambient cooling system.  United States.

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                    Campbell, Jr, Christian X., Marra, John J., and Marsh, Jan H. Tue .  
        "Turbine airfoil with ambient cooling system".  United States.  https://www.osti.gov/servlets/purl/1255970.

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@article{osti_1255970,

  title        = {Turbine airfoil with ambient cooling system},

  author       = {Campbell, Jr, Christian X. and Marra, John J. and Marsh, Jan H.},

  abstractNote = {A turbine airfoil usable in a turbine engine and having at least one ambient air cooling system is disclosed. At least a portion of the cooling system may include one or more cooling channels configured to receive ambient air at about atmospheric pressure. The ambient air cooling system may have a tip static pressure to ambient pressure ratio of at least 0.5, and in at least one embodiment, may include a tip static pressure to ambient pressure ratio of between about 0.5 and about 3.0. The cooling system may also be configured such that an under root slot chamber in the root is large to minimize supply air velocity. One or more cooling channels of the ambient air cooling system may terminate at an outlet at the tip such that the outlet is aligned with inner surfaces forming the at least one cooling channel in the airfoil to facilitate high mass flow.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Tue Jun 07 00:00:00 EDT 2016},

  month        = {Tue Jun 07 00:00:00 EDT 2016}

}

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Works referenced in this record:

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patent, January 1976

Redman, Robert Frederick; Sharpe, Michael
US Patent Document 3,930,748
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/3930748

Turbine vane cooling
patent, February 1976

Hoff, Richard
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Cooling system for a gas turbine engine
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Air cooled turbine vanes
patent, May 1979

Leogrande, John A.; Levine, Richard
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Airfoil with nested cooling channels
patent, June 1988

Levengood, James L.; Auxier, Thomas A.
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North, William E.; Entenmann, David T.; Donlan, John P.
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Turbine engine having combustor air precooler
patent, May 1991

Speer, Stephen R.
US Patent Document 5,012,646
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Air cycle machine with heat isolation having back-to-back turbine and compressor rotors
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Merritt, Brent J.; Dziorny, Paul J.
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Turbojet cooling system
patent, October 1994

Miller, Franklin E.
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patent, February 1995

Thomas, Jr,, Theodore T.; Lee, Ching-Pang
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Self bleeding rotor blade
patent, January 1996

Wadia, Aspi Rustom; Mielke, Mark Joseph
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Cooled airfoils for a gas turbine engine
patent, December 1997

Moore, Robert P.
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Cooled blades for a gas turbine engine
patent, February 1998

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Turbine blade with enhanced cooling and profile optimization
patent, November 1999

Barry, Vincent Anthony; Gregory, Brent Allan; Abuaf, Nesim
US Patent Document 5,980,209
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Reduction of turbomachinery noise
patent, December 1999

Waitz, Ian A.; Brookfield, John M.; Sell, Julian
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Methods and apparatus for supplying cooling air to turbine engines
patent, June 2003

Coffinberry, George A.
US Patent Document 6,578,362
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Turbine blade airfoil
patent, August 2004

Parker, David; Taylor, Jeffrey S.; Johnston, Christopher
US Patent Document 6,769,878
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patent, August 2005

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patent, September 2005

Leishman, John G.; Han, Yong Oun
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Dust resistant platform blade
patent, July 2007

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Liang, George
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patent, January 2012

Liang, George
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Liang, George
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Cooled aerofoil for a gas turbine engine
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Tibbott, Ian
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Ambient Air Cooling Arrangement Having A Pre-Swirler For Gas Turbine Engine Blade Cooling
patent-application, June 2013

Lee, Ching-Pang; Tham, Kok-Mun; Schroeder, Eric
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Similar Records

Title: Turbine airfoil with ambient cooling system

Abstract

Citation Formats

Hollow cooled vane or blade for a gas turbine engine patent, January 1976

Turbine vane cooling patent, February 1976

Cooling system for a gas turbine engine patent, September 1978

Air cooled turbine vanes patent, May 1979

Airfoil with nested cooling channels patent, June 1988

Cooled turbine vane patent, June 1990

Turbine engine having combustor air precooler patent, May 1991

Air cycle machine with heat isolation having back-to-back turbine and compressor rotors patent, October 1993

Turbojet cooling system patent, October 1994

Turbine blade composite cooling circuit patent, February 1995

Self bleeding rotor blade patent, January 1996

Cooled airfoils for a gas turbine engine patent, December 1997

Cooled blades for a gas turbine engine patent, February 1998

Turbine blade with enhanced cooling and profile optimization patent, November 1999

Reduction of turbomachinery noise patent, December 1999

Methods and apparatus for supplying cooling air to turbine engines patent, June 2003

Turbine blade airfoil patent, August 2004

Turbine blade having a vortex forming cooling system for a trailing edge patent, August 2005

Rotor blade system with reduced blade-vortex interaction noise patent, September 2005

Dust resistant platform blade patent, July 2007

Parallel serpentine cooled blade patent, November 2007

Turbine blade cooling system with bifurcated mid-chord cooling chamber patent, August 2008

Cooling arrangement patent, March 2009

Multiple cooling schemes for turbine blade outer air seal patent, November 2009

Turbine last stage blade with forced vortex driven cooling air patent, March 2010

Trailing edge cooling for turbine blade airfoil patent, January 2012

Turbine blade with cooling air inlet holes patent, January 2014

Cooled aerofoil for a gas turbine engine patent-application, October 2010

Ambient Air Cooling Arrangement Having A Pre-Swirler For Gas Turbine Engine Blade Cooling patent-application, June 2013

Hollow cooled vane or blade for a gas turbine engine
patent, January 1976

Turbine vane cooling
patent, February 1976

Cooling system for a gas turbine engine
patent, September 1978

Air cooled turbine vanes
patent, May 1979

Airfoil with nested cooling channels
patent, June 1988

Cooled turbine vane
patent, June 1990

Turbine engine having combustor air precooler
patent, May 1991

Air cycle machine with heat isolation having back-to-back turbine and compressor rotors
patent, October 1993

Turbojet cooling system
patent, October 1994

Turbine blade composite cooling circuit
patent, February 1995

Self bleeding rotor blade
patent, January 1996

Cooled airfoils for a gas turbine engine
patent, December 1997

Cooled blades for a gas turbine engine
patent, February 1998

Turbine blade with enhanced cooling and profile optimization
patent, November 1999

Reduction of turbomachinery noise
patent, December 1999

Methods and apparatus for supplying cooling air to turbine engines
patent, June 2003

Turbine blade airfoil
patent, August 2004

Turbine blade having a vortex forming cooling system for a trailing edge
patent, August 2005

Rotor blade system with reduced blade-vortex interaction noise
patent, September 2005

Dust resistant platform blade
patent, July 2007

Parallel serpentine cooled blade
patent, November 2007

Turbine blade cooling system with bifurcated mid-chord cooling chamber
patent, August 2008

Cooling arrangement
patent, March 2009

Multiple cooling schemes for turbine blade outer air seal
patent, November 2009

Turbine last stage blade with forced vortex driven cooling air
patent, March 2010

Trailing edge cooling for turbine blade airfoil
patent, January 2012

Turbine blade with cooling air inlet holes
patent, January 2014

Cooled aerofoil for a gas turbine engine
patent-application, October 2010

Ambient Air Cooling Arrangement Having A Pre-Swirler For Gas Turbine Engine Blade Cooling
patent-application, June 2013