Modular turbine airfoil and platform assembly with independent root teeth

Campbell, Christian X; Davies, Daniel O; Eng, Darryl

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Title: Modular turbine airfoil and platform assembly with independent root teeth

Abstract

A turbine airfoil (22E-H) extends from a shank (23E-H). A platform (30E-H) brackets or surrounds a first portion of the shank (23E-H). Opposed teeth (33, 35) extend laterally from the platform (30E-H) to engage respective slots (50) in a disk. Opposed teeth (25, 27) extend laterally from a second portion of the shank (29) that extends below the platform (30E-H) to engage other slots (52) in the disk. Thus the platform (30E-H) and the shank (23E-H) independently support their own centrifugal loads via their respective teeth. The platform may be formed in two portions (32E-H, 34E-H), that are bonded to each other at matching end-walls (37) and/or via pins (36G) passing through the shank (23E-H). Coolant channels (41, 43) may pass through the shank beside the pins (36G).

Inventors:: Campbell, Christian X; Davies, Daniel O; Eng, Darryl

Issue Date:: Tue Jul 30 00:00:00 EDT 2013

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

Sponsoring Org.:: USDOE

OSTI Identifier:: 1088986

Patent Number(s):: 8496443

Application Number:: 12/793,935

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

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F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01D - NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
F01D11/008 - {by spacer elements between the blades, e.g. independent interblade platforms}
F01D5/081 - {Cooling fluid being directed on the side of the rotor disc or at the roots of the blades
F01D5/147 - {Construction, i.e. structural features, e.g. of weight-saving hollow blades
F01D5/3007 - {of axial insertion type}

Show less

DOE Contract Number:: FC26-05NT42644

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING

Citation Formats


                    Campbell, Christian X, Davies, Daniel O, and Eng, Darryl. Modular turbine airfoil and platform assembly with independent root teeth.  United States: N. p., 2013. 
        Web.

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                    Campbell, Christian X, Davies, Daniel O, & Eng, Darryl. Modular turbine airfoil and platform assembly with independent root teeth.  United States.

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                    Campbell, Christian X, Davies, Daniel O, and Eng, Darryl. Tue .  
        "Modular turbine airfoil and platform assembly with independent root teeth".  United States.  https://www.osti.gov/servlets/purl/1088986.

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@article{osti_1088986,

  title        = {Modular turbine airfoil and platform assembly with independent root teeth},

  author       = {Campbell, Christian X and Davies, Daniel O and Eng, Darryl},

  abstractNote = {A turbine airfoil (22E-H) extends from a shank (23E-H). A platform (30E-H) brackets or surrounds a first portion of the shank (23E-H). Opposed teeth (33, 35) extend laterally from the platform (30E-H) to engage respective slots (50) in a disk. Opposed teeth (25, 27) extend laterally from a second portion of the shank (29) that extends below the platform (30E-H) to engage other slots (52) in the disk. Thus the platform (30E-H) and the shank (23E-H) independently support their own centrifugal loads via their respective teeth. The platform may be formed in two portions (32E-H, 34E-H), that are bonded to each other at matching end-walls (37) and/or via pins (36G) passing through the shank (23E-H). Coolant channels (41, 43) may pass through the shank beside the pins (36G).},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Tue Jul 30 00:00:00 EDT 2013},

  month        = {Tue Jul 30 00:00:00 EDT 2013}

}

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Works referenced in this record:

Turbine Blade Lock
patent, June 1960

Hayes, John R.
US Patent Document 2942842
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/2942842

Hollow Turbine Bucket and Method of Manufacturing Same
patent, November 1924

Johanson, John
US Patent Document 1516607
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/1516607

Locking of rotor blades on a rotor disk
patent, April 1984

Rowley, Robert L.
US Patent Document 4,444,544
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4444544

Turbine blades made from multiple single crystal cast superalloy segments
patent, December 2001

Burke, Michael A.; Freyer, Paula; Hebbar, Mohan A.
US Patent Document 6,331,217
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6331217

Turbine blade arrangement
patent, April 2004

Strassberger, Michael; Tiemann, Peter
US Patent Document 6,726,452
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6726452

Turbine Stator Blade
patent, September 1957

Howlett, John W.; Dew, Sidney Bernard
US Patent Document 2807435
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/2807435

Turbine airfoil cooling system with elbowed, diffusion film cooling hole
patent, April 2008

Liang, George
US Patent Document 7,351,036
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7351036

Prestressed Compressor Blade
patent, April 1960

Warnken, Elmer P.
US Patent Document 2934317
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/2934317

Gas turbine blade with cooled platform
patent, June 1997

McLaurin, Leroy D.; Pepperman, Barton M.
US Patent Document 5,639,216
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5639216

Cooled turbine spar shell blade construction
patent, July 2006

Wilson, Jr., Jack W.; Brown, Wesley D.
US Patent Document 7,080,971
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7080971

Gas turbine engine vane and method of manufacture
patent, August 1998

Rhodes, Jeffrey F.
US Patent Document 5,797,725
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5797725

Root notched turbine blade
patent, September 2004

Herman, William Charles; Norton, Brian; Keith, Brian David
US Patent Document 6,786,696
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6786696

Rotor blade for a rotary machine
patent, March 1987

Craig, Harold M.; Feder, Ernest
US Patent Document 4,650,399
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4650399

Optimized blade root profile for steam turbine blades
patent, September 1992

Johnson, Mike
US Patent Document 5,147,180
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5147180

Rotor blade for a rotary machine
patent, April 1986

Craig, Harold M.; Feder, Ernest
US Patent Document 4,583,914
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4583914

Cooled turbine vane
patent, October 1981

Durgin, George A.; Demers, Daniel Edward
US Patent Document 4,297,077
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4297077

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Similar Records

Title: Modular turbine airfoil and platform assembly with independent root teeth

Abstract

Citation Formats

Turbine Blade Lock patent, June 1960

Hollow Turbine Bucket and Method of Manufacturing Same patent, November 1924

Locking of rotor blades on a rotor disk patent, April 1984

Turbine blades made from multiple single crystal cast superalloy segments patent, December 2001

Turbine blade arrangement patent, April 2004

Turbine Stator Blade patent, September 1957

Turbine airfoil cooling system with elbowed, diffusion film cooling hole patent, April 2008

Prestressed Compressor Blade patent, April 1960

Gas turbine blade with cooled platform patent, June 1997

Cooled turbine spar shell blade construction patent, July 2006

Gas turbine engine vane and method of manufacture patent, August 1998

Root notched turbine blade patent, September 2004

Rotor blade for a rotary machine patent, March 1987

Optimized blade root profile for steam turbine blades patent, September 1992

Rotor blade for a rotary machine patent, April 1986

Cooled turbine vane patent, October 1981

Turbine Blade Lock
patent, June 1960

Hollow Turbine Bucket and Method of Manufacturing Same
patent, November 1924

Locking of rotor blades on a rotor disk
patent, April 1984

Turbine blades made from multiple single crystal cast superalloy segments
patent, December 2001

Turbine blade arrangement
patent, April 2004

Turbine Stator Blade
patent, September 1957

Turbine airfoil cooling system with elbowed, diffusion film cooling hole
patent, April 2008

Prestressed Compressor Blade
patent, April 1960

Gas turbine blade with cooled platform
patent, June 1997

Cooled turbine spar shell blade construction
patent, July 2006

Gas turbine engine vane and method of manufacture
patent, August 1998

Root notched turbine blade
patent, September 2004

Rotor blade for a rotary machine
patent, March 1987

Optimized blade root profile for steam turbine blades
patent, September 1992

Rotor blade for a rotary machine
patent, April 1986

Cooled turbine vane
patent, October 1981