Turbine blade with contoured chamfered squealer tip

Lee, Ching-Pang

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A - human necessities
A01 - agriculture
A21 - baking
A22 - butchering
A23 - foods or foodstuffs
A24 - tobacco
A41 - wearing apparel
A42 - headwear
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A44 - haberdashery
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A47 - furniture
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A99 - subject matter not otherwise provided for in this section
B - performing operations
B01 - physical or chemical processes or apparatus in general
B02 - crushing, pulverising, or disintegrating
B03 - separation of solid materials using liquids or using pneumatic tables or jigs
B04 - centrifugal apparatus or machines for carrying-out physical or chemical processes
B05 - spraying or atomising in general
B06 - generating or transmitting mechanical vibrations in general
B07 - separating solids from solids
B08 - cleaning
B09 - disposal of solid waste
B21 - mechanical metal-working without essentially removing material
B22 - casting
B23 - machine tools
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B27 - working or preserving wood or similar material
B28 - working cement, clay, or stone
B29 - working of plastics
B30 - presses
B31 - making articles of paper, cardboard or material worked in a manner analogous to paper
B32 - layered products
B33 - additive manufacturing technology
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B42 - bookbinding
B43 - writing or drawing implements
B44 - decorative arts
B60 - vehicles in general
B61 - railways
B62 - land vehicles for travelling otherwise than on rails
B63 - ships or other waterborne vessels
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B67 - opening, closing {or cleaning} bottles, jars or similar containers
B68 - saddlery
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C01 - inorganic chemistry
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C22 - metallurgy
C23 - coating metallic material
C25 - electrolytic or electrophoretic processes
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D - textiles
D01 - natural or man-made threads or fibres
D02 - yarns
D03 - weaving
D04 - braiding
D05 - sewing
D06 - treatment of textiles or the like
D07 - ropes
D10 - indexing scheme associated with sublasses of section d, relating to textiles
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E01 - construction of roads, railways, or bridges
E02 - hydraulic engineering
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E04 - building
E05 - locks
E06 - doors, windows, shutters, or roller blinds in general
E21 - earth drilling
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F - mechanical engineering
F01 - machines or engines in general
F02 - combustion engines
F03 - machines or engines for liquids
F04 - positive - displacement machines for liquids
F05 - indexing schemes relating to engines or pumps in various subclasses of classes f01-f04
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F17 - storing or distributing gases or liquids
F21 - lighting
F22 - steam generation
F23 - combustion apparatus
F24 - heating
F25 - refrigeration or cooling
F26 - drying
F27 - furnaces
F28 - heat exchange in general
F41 - weapons
F42 - ammunition
F99 - subject matter not otherwise provided for in this section
G - physics
G01 - measuring
G02 - optics
G03 - photography
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G05 - controlling
G06 - computing
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G08 - signalling
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G12 - instrument details
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Title: Turbine blade with contoured chamfered squealer tip

Abstract

A squealer tip formed from a pressure side tip wall and a suction side tip wall extending radially outward from a tip of the turbine blade is disclosed. The pressure and suction side tip walls may be positioned along the pressure sidewall and the suction sidewall of the turbine blade, respectively. The pressure side tip wall may include a chamfered leading edge with film cooling holes having exhaust outlets positioned therein. An axially extending tip wall may be formed from at least two outer linear surfaces joined together at an intersection forming a concave axially extending tip wall. The axially extending tip wall may include a convex inner surface forming a radially outer end to an inner cavity forming a cooling system. The cooling system may include one or more film cooling holes in the axially extending tip wall proximate to the suction sidewall, which promotes increased cooling at the pressure and suction sidewalls.

Inventors:: Lee, Ching-Pang

Issue Date:: 2014-12-30

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

Sponsoring Org.:: USDOE

OSTI Identifier:: 1166772

Patent Number(s):: 8920124

Application Number:: 13/767,019

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
F01D5/14 - Form or construction
F01D5/20 - Specially-shaped blade tips to seal space between tips and stator {

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DOE Contract Number:: FC26-05NT42644

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING

Citation Formats


                    Lee, Ching-Pang. Turbine blade with contoured chamfered squealer tip.  United States: N. p., 2014. 
        Web.

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                    Lee, Ching-Pang. Turbine blade with contoured chamfered squealer tip.  United States.

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                    Lee, Ching-Pang. Tue .  
        "Turbine blade with contoured chamfered squealer tip".  United States.  https://www.osti.gov/servlets/purl/1166772.

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@article{osti_1166772,

  title        = {Turbine blade with contoured chamfered squealer tip},

  author       = {Lee, Ching-Pang},

  abstractNote = {A squealer tip formed from a pressure side tip wall and a suction side tip wall extending radially outward from a tip of the turbine blade is disclosed. The pressure and suction side tip walls may be positioned along the pressure sidewall and the suction sidewall of the turbine blade, respectively. The pressure side tip wall may include a chamfered leading edge with film cooling holes having exhaust outlets positioned therein. An axially extending tip wall may be formed from at least two outer linear surfaces joined together at an intersection forming a concave axially extending tip wall. The axially extending tip wall may include a convex inner surface forming a radially outer end to an inner cavity forming a cooling system. The cooling system may include one or more film cooling holes in the axially extending tip wall proximate to the suction sidewall, which promotes increased cooling at the pressure and suction sidewalls.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2014},

  month        = {12}

}

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Works referenced in this record:

Chordally bifurcated turbine blade
patent, October 1994

Kercher, David M.
US Patent Document 5,356,265
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5356265

Turbine blade having tip slot
patent, April 1996

Lee, Ching-Pang; Pietraszkiewicz, Edward F.; Prakash, Chander
US Patent Document 5,503,527
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5503527

Slot cooled blade tip
patent, March 1998

Lee, Ching-Pang; Brainch, Gulcharan S.; Isburgh, Anne M.
US Patent Document 5,733,102
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5733102

Conduction blade tip
patent, April 1998

Lee, Ching-Pang; Gregory, Brent Allan; Jacala, Ariel Caesar Prepena
US Patent Document 5,738,491
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5738491

Turbine blade having recuperative trailing edge tip cooling
patent, July 1999

Lee, Ching-Pang
US Patent Document 5,927,946
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5927946

Ribbed turbine blade tip
patent, December 1999

Lee, Ching-Pang
US Patent Document 5,997,251
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5997251

Tapered tip turbine blade
patent, July 2000

Lee, Ching-Pang
US Patent Document 6,086,328
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6086328

Method and apparatus for reducing turbine blade tip temperatures
patent, July 2002

Lee, Ching-Pang; Prakash, Chander; Shelton, Monty Lee
US Patent Document 6,422,821
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6422821

Airfoil tip squealer cooling construction
patent, August 2003

Liang, George
US Patent Document 6,602,052
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6602052

Foil formed structure for turbine airfoil tip
patent, October 2003

Lee, Ching-Pang; Jackson, Melvin Robert; Ferrigno, Stephen Joseph
US Patent Document 6,634,860
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6634860

Turbine blade having angled squealer tip
patent, January 2004

Cherry, David Glenn; Lee, Ching-Pang; Prakash, Chander
US Patent Document 6,672,829
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6672829

Turbine blade tip squealer and rebuild method
patent, September 2007

Lee, Ching-Pang
US Patent Document 7,270,514
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7270514

Turbine airfoil curved squealer tip with tip shelf
patent, October 2007

Lee, Ching-Pang; Prakash, Chander
US Patent Document 7,281,894
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7281894

Blunt tip turbine blade
patent, October 2007

Lee, Ching-Pang; Wadia, Aspi Rustom; Brauer, John Christopher
US Patent Document 7,287,959
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7287959

Turbine airfoil with curved squealer tip
patent, November 2007

Stegemiller, Mark Edward; Prakash, Chander; Leeke, Leslie Eugene
US Patent Document 7,290,986
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7290986

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

Liang, George
US Patent Document 7,413,407
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7413407

Skewed tip hole turbine blade
patent, March 2009

Lee, Ching-Pang; Palmer, Nicholas Charles; Kirkeng, Kevin Lee
US Patent Document 7,510,376
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7510376

Counter tip baffle airfoil
patent, October 2009

Lee, Ching-Pang; Klasing, Kevin Samuel; Vitt, Paul Hadley
US Patent Document 7,607,893
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7607893

Conformal tip baffle airfoil
patent, March 2010

Klasing, Kevin Samuel; Lee, Ching-Pang; Vitt, Paul Hadley
US Patent Document 7,686,578
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7686578

Plasma blade tip clearance control
patent, October 2010

Lee, Ching-Pang; Wadia, Aspi Rustom; Cherry, David Glenn
US Patent Document 7,819,626
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7819626

Method and Apparatus for Reducing Turbine Blade Tip Temperatures
patent-application, July 2002

Lee, Ching-Ping; Prakash, Chander; Shelton, Monty Lee
US Patent Application 09/756902; 20020090301
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20020090301

Cooled thermal barrier coating on a turbine blade tip
patent-application, October 2002

Lee, Ching-Pang; Schafrik, Robert Edward; Darolia, Ramgopal
US Patent Application 09/818384; 20020141868
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20020141868

Tip ramp turbine blade
patent-application, February 2008

Klasing, Kevin Samuel; Lee, Ching-Pang; Vitt, Paul Hadley
US Patent Application 11/507116; 20080044289
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20080044289

Cascade tip baffle airfoil
patent-application, December 2009

Klasing, Kevin Samuel; Lee, Ching-Pang; Vitt, Paul Hadley
US Patent Application 11/507120; 20090324422
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20090324422

Aerofoil
patent-application, February 2010

Kopmels, Michiel
US Patent Application 12/385249; 20100047057
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20100047057

Turbine Blade for a Gas Turbine Engine
patent-application, June 2010

Marini, Remo; Vlasic, Edward
US Patent Application 12/324996; 20100135822
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20100135822

Flared tip turbine blade
patent-application, September 2010

Klasing, Kevin Samuel; Lee, Ching-Pang; Vitt, Paul Hadley
US Patent Application 11/507119; 20100221122
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20100221122

Turbine Blade with Chamfered Squealer Tip and Convective Cooling Holes
patent-application, November 2012

Lee, Ching-Pang; Mhetras, Shantanu P.; Brown, Glenn E.
US Patent Application 13/099521; 20120282108
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20120282108

Cooled Turbine Blade for Gas Turbine Engine
patent-application, June 2013

Bacha, Jean-Luc; Berche, Emmanuel; Brusq, Tangi
US Patent Application 13/693649; 20130142668
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20130142668

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Similar Records

Title: Turbine blade with contoured chamfered squealer tip

Abstract

Citation Formats

Chordally bifurcated turbine blade patent, October 1994

Turbine blade having tip slot patent, April 1996

Slot cooled blade tip patent, March 1998

Conduction blade tip patent, April 1998

Turbine blade having recuperative trailing edge tip cooling patent, July 1999

Ribbed turbine blade tip patent, December 1999

Tapered tip turbine blade patent, July 2000

Method and apparatus for reducing turbine blade tip temperatures patent, July 2002

Airfoil tip squealer cooling construction patent, August 2003

Foil formed structure for turbine airfoil tip patent, October 2003

Turbine blade having angled squealer tip patent, January 2004

Turbine blade tip squealer and rebuild method patent, September 2007

Turbine airfoil curved squealer tip with tip shelf patent, October 2007

Blunt tip turbine blade patent, October 2007

Turbine airfoil with curved squealer tip patent, November 2007

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

Skewed tip hole turbine blade patent, March 2009

Counter tip baffle airfoil patent, October 2009

Conformal tip baffle airfoil patent, March 2010

Plasma blade tip clearance control patent, October 2010

Method and Apparatus for Reducing Turbine Blade Tip Temperatures patent-application, July 2002

Cooled thermal barrier coating on a turbine blade tip patent-application, October 2002

Tip ramp turbine blade patent-application, February 2008

Cascade tip baffle airfoil patent-application, December 2009

Aerofoil patent-application, February 2010

Turbine Blade for a Gas Turbine Engine patent-application, June 2010

Flared tip turbine blade patent-application, September 2010

Turbine Blade with Chamfered Squealer Tip and Convective Cooling Holes patent-application, November 2012

Cooled Turbine Blade for Gas Turbine Engine patent-application, June 2013

Chordally bifurcated turbine blade
patent, October 1994

Turbine blade having tip slot
patent, April 1996

Slot cooled blade tip
patent, March 1998

Conduction blade tip
patent, April 1998

Turbine blade having recuperative trailing edge tip cooling
patent, July 1999

Ribbed turbine blade tip
patent, December 1999

Tapered tip turbine blade
patent, July 2000

Method and apparatus for reducing turbine blade tip temperatures
patent, July 2002

Airfoil tip squealer cooling construction
patent, August 2003

Foil formed structure for turbine airfoil tip
patent, October 2003

Turbine blade having angled squealer tip
patent, January 2004

Turbine blade tip squealer and rebuild method
patent, September 2007

Turbine airfoil curved squealer tip with tip shelf
patent, October 2007

Blunt tip turbine blade
patent, October 2007

Turbine airfoil with curved squealer tip
patent, November 2007

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

Skewed tip hole turbine blade
patent, March 2009

Counter tip baffle airfoil
patent, October 2009

Conformal tip baffle airfoil
patent, March 2010

Plasma blade tip clearance control
patent, October 2010

Method and Apparatus for Reducing Turbine Blade Tip Temperatures
patent-application, July 2002

Cooled thermal barrier coating on a turbine blade tip
patent-application, October 2002

Tip ramp turbine blade
patent-application, February 2008

Cascade tip baffle airfoil
patent-application, December 2009

Aerofoil
patent-application, February 2010

Turbine Blade for a Gas Turbine Engine
patent-application, June 2010

Flared tip turbine blade
patent-application, September 2010

Turbine Blade with Chamfered Squealer Tip and Convective Cooling Holes
patent-application, November 2012

Cooled Turbine Blade for Gas Turbine Engine
patent-application, June 2013