Ambient air cooling arrangement having a pre-swirler for gas turbine engine blade cooling

Lee, Ching-Pang; Tham, Kok-Mun; Schroeder, Eric; Meeroff, Jamie; Miller, Samuel R; Marra, John J

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Title: Ambient air cooling arrangement having a pre-swirler for gas turbine engine blade cooling

Abstract

A gas turbine engine including: an ambient-air cooling circuit (10) having a cooling channel (26) disposed in a turbine blade (22) and in fluid communication with a source (12) of ambient air: and an pre-swirler (18), the pre-swirler having: an inner shroud (38); an outer shroud (56); and a plurality of guide vanes (42), each spanning from the inner shroud to the outer shroud. Circumferentially adjacent guide vanes (46, 48) define respective nozzles (44) there between. Forces created by a rotation of the turbine blade motivate ambient air through the cooling circuit. The pre-swirler is configured to impart swirl to ambient air drawn through the nozzles and to direct the swirled ambient air toward a base of the turbine blade. The end walls (50, 54) of the pre-swirler may be contoured.

Inventors:: Lee, Ching-Pang; Tham, Kok-Mun; Schroeder, Eric; Meeroff, Jamie; Miller, Jr., Samuel R; Marra, John J

Issue Date:: Tue Jan 06 00:00:00 EST 2015

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

Sponsoring Org.:: USDOE

OSTI Identifier:: 1167028

Patent Number(s):: 8926267

Application Number:: 13/766,909

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 F02 - COMBUSTION ENGINES F02C - GAS-TURBINE PLANTS

Show more

F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01D - NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
F01D11/001 - {for sealing space between stator blade and rotor}
F01D25/12 - Cooling
F01D5/082 - {on the side of the rotor disc}
F01D5/143 - {Contour of the outer or inner working fluid flow path wall, i.e. shroud or hub contour}
F01D5/187 - {Convection cooling}
F01D9/065 - {Fluid supply or removal conduits traversing the working fluid flow, e.g. for lubrication-, cooling-, or sealing fluids

F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02C - GAS-TURBINE PLANTS
F02C7/12 - Cooling of plants

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
F05D2240/127 - Vortex generators, turbulators, or the like, for mixing

Show less

DOE Contract Number:: FC26-05NT42644

Resource Type:: Patent

Resource Relation:: Patent File Date: 2013 Feb 14

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING

Citation Formats


                    Lee, Ching-Pang, Tham, Kok-Mun, Schroeder, Eric, Meeroff, Jamie, Miller, Jr., Samuel R, and Marra, John J. Ambient air cooling arrangement having a pre-swirler for gas turbine engine blade cooling.  United States: N. p., 2015. 
        Web.

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                    Lee, Ching-Pang, Tham, Kok-Mun, Schroeder, Eric, Meeroff, Jamie, Miller, Jr., Samuel R, & Marra, John J. Ambient air cooling arrangement having a pre-swirler for gas turbine engine blade cooling.  United States.

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                    Lee, Ching-Pang, Tham, Kok-Mun, Schroeder, Eric, Meeroff, Jamie, Miller, Jr., Samuel R, and Marra, John J. Tue .  
        "Ambient air cooling arrangement having a pre-swirler for gas turbine engine blade cooling".  United States.  https://www.osti.gov/servlets/purl/1167028.

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@article{osti_1167028,

  title        = {Ambient air cooling arrangement having a pre-swirler for gas turbine engine blade cooling},

  author       = {Lee, Ching-Pang and Tham, Kok-Mun and Schroeder, Eric and Meeroff, Jamie and Miller, Jr., Samuel R and Marra, John J},

  abstractNote = {A gas turbine engine including: an ambient-air cooling circuit (10) having a cooling channel (26) disposed in a turbine blade (22) and in fluid communication with a source (12) of ambient air: and an pre-swirler (18), the pre-swirler having: an inner shroud (38); an outer shroud (56); and a plurality of guide vanes (42), each spanning from the inner shroud to the outer shroud. Circumferentially adjacent guide vanes (46, 48) define respective nozzles (44) there between. Forces created by a rotation of the turbine blade motivate ambient air through the cooling circuit. The pre-swirler is configured to impart swirl to ambient air drawn through the nozzles and to direct the swirled ambient air toward a base of the turbine blade. The end walls (50, 54) of the pre-swirler may be contoured.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Tue Jan 06 00:00:00 EST 2015},

  month        = {Tue Jan 06 00:00:00 EST 2015}

}

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Laurello, Vincent P.
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Similar Records

Title: Ambient air cooling arrangement having a pre-swirler for gas turbine engine blade cooling

Abstract

Citation Formats

Gas turbine engine having bleed apparatus with dynamic pressure recovery patent, December 1980

Device for the reduction of secondary losses in a bladed flow duct patent, December 1983

Circumferentially area ruled duct patent, July 1987

Cooling flow side entry for cooled turbine blading patent, July 1988

Turbine cooling air modulation patent, February 1989

System and method for improved engine cooling in conjunction with an improved gas bearing face seal assembly patent, May 1994

Flow directing assembly for the compression section of a rotary machine patent, March 1995

Gas turbine engine turbine patent, November 1995

Turbine cooling flow modulation apparatus patent, November 1996

Gas turbine and method of cooling a turbine stage patent, August 2002

Compressor outlet guide vane and diffuser assembly patent, April 2003

Fluted compressor flowpath patent, May 2003

Endwall shape for use in turbomachinery patent, December 2003

Flow directing device patent, November 2005

Crescentic ramp turbine stage patent, May 2007

Axial compressor blading patent, April 2008

Non-axisymmetric end wall contouring for a turbomachine blade row patent, December 2008

Mounting arrangement for turbine blades patent, March 2009

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

Wall configuration of axial-flow machine, and gas turbine engine patent, April 2010

Flow control arrangement patent, October 2010

Blade row for a rotary machine and method of fabricating same patent, January 2011

Airfoil array with an endwall protrusion and components of the array patent, February 2011

Turbine exhaust cylinder and strut cooling patent, February 2014

Systems and Methods for Supplying Cooling Air to a Gas Turbine patent-application, January 2010

Low Pressure Cooling Seal System for a Gas Turbine Engine patent-application, October 2012

Gas turbine engine having bleed apparatus with dynamic pressure recovery
patent, December 1980

Device for the reduction of secondary losses in a bladed flow duct
patent, December 1983

Circumferentially area ruled duct
patent, July 1987

Cooling flow side entry for cooled turbine blading
patent, July 1988

Turbine cooling air modulation
patent, February 1989

System and method for improved engine cooling in conjunction with an improved gas bearing face seal assembly
patent, May 1994

Flow directing assembly for the compression section of a rotary machine
patent, March 1995

Gas turbine engine turbine
patent, November 1995

Turbine cooling flow modulation apparatus
patent, November 1996

Gas turbine and method of cooling a turbine stage
patent, August 2002

Compressor outlet guide vane and diffuser assembly
patent, April 2003

Fluted compressor flowpath
patent, May 2003

Endwall shape for use in turbomachinery
patent, December 2003

Flow directing device
patent, November 2005

Crescentic ramp turbine stage
patent, May 2007

Axial compressor blading
patent, April 2008

Non-axisymmetric end wall contouring for a turbomachine blade row
patent, December 2008

Mounting arrangement for turbine blades
patent, March 2009

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

Wall configuration of axial-flow machine, and gas turbine engine
patent, April 2010

Flow control arrangement
patent, October 2010

Blade row for a rotary machine and method of fabricating same
patent, January 2011

Airfoil array with an endwall protrusion and components of the array
patent, February 2011

Turbine exhaust cylinder and strut cooling
patent, February 2014

Systems and Methods for Supplying Cooling Air to a Gas Turbine
patent-application, January 2010

Low Pressure Cooling Seal System for a Gas Turbine Engine
patent-application, October 2012