Momentum preserving film-cooling shaped holes

Shih, Tom I-P; Na, Sangkwon

Title: Momentum preserving film-cooling shaped holes

Abstract

A system for cooling includes a surface to be cooled and at least one film-cooling hole within the surface for allowing a film cooling jet of coolant to reach the surface, each of the at least one film-cooling hole having a diameter. The at least one film-cooling hole is shaped to preserve momentum of the coolant and assist in preventing entrainment of the hot gases. A method of cooling a surface proximate hot gas includes providing coolant through a w-shaped film-cooling hole to form a cool film between the hot gas and the surface and preserving momentum of the coolant using the w-shaped film-cooling hole to assist in preventing entrainment of the hot gases.

Inventors:: Shih, Tom I-P; Na, Sangkwon

Issue Date:: 2011-08-16

Research Org.:: Iowa State Univ., Ames, IA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1531692

Patent Number(s):: 7997867

Application Number:: 11/975,064

Assignee:: Iowa State University Research Foundation, Inc. (Ames, IA)

Patent Classifications (CPCs):: 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

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02T - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

Show more

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
F05D2250/52 - Outlet
F05D2260/202 - by film cooling

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02T - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
Y02T50/60 - Efficient propulsion technologies

F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01D - NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
F01D5/186 - {Film cooling

Show less

DOE Contract Number:: FC26-02NT41431

Resource Type:: Patent

Resource Relation:: Patent File Date: 2007-10-17

Country of Publication:: United States

Language:: English

Citation Formats


                    Shih, Tom I-P, and Na, Sangkwon. Momentum preserving film-cooling shaped holes.  United States: N. p., 2011. 
        Web.

Copy to clipboard


                    Shih, Tom I-P, & Na, Sangkwon. Momentum preserving film-cooling shaped holes.  United States.

Copy to clipboard


                    Shih, Tom I-P, and Na, Sangkwon. Tue .  
        "Momentum preserving film-cooling shaped holes".  United States.  https://www.osti.gov/servlets/purl/1531692.

Copy to clipboard


                    
@article{osti_1531692,

  title        = {Momentum preserving film-cooling shaped holes},

  author       = {Shih, Tom I-P and Na, Sangkwon},

  abstractNote = {A system for cooling includes a surface to be cooled and at least one film-cooling hole within the surface for allowing a film cooling jet of coolant to reach the surface, each of the at least one film-cooling hole having a diameter. The at least one film-cooling hole is shaped to preserve momentum of the coolant and assist in preventing entrainment of the hot gases. A method of cooling a surface proximate hot gas includes providing coolant through a w-shaped film-cooling hole to form a cool film between the hot gas and the surface and preserving momentum of the coolant using the w-shaped film-cooling hole to assist in preventing entrainment of the hot gases.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2011},

  month        = {8}

}

Copy to clipboard

Patent:

View Patent

Save / Share:

Export Metadata

Save to My Library

Works referenced in this record:

Pressure regulated film cooling
patent, March 1996

Lee, Ching-Pang
US Patent Document 5,498,133
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=5498133

Increasing Adiabatic Film-Cooling Effectiveness by Using an Upstream Ramp
journal, December 2006

Na, Sangkwon; Shih, Tom I-P.
Journal of Heat Transfer, Vol. 129, Issue 4
https://doi.org/10.1115/1.2709965

Turbine bucket with optimized cooling circuit
patent, April 2007

Muriithi, Kahwai G.
US Patent Document 7,207,775
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=7207775

Turbine airfoil with enhanced cooling
patent, September 2010

Liang, George
US Patent Document 7,789,625
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=7789625

Method of laser forming a slot
patent, May 1998

Rockstroh, Todd; Crow, John M.; Lee, Ching-Pang
US Patent Document 5,747,769
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=5747769

Cooled turbine blade for a gas turbine
patent, April 1997

Ohtomo, Fumio; Fukuyama, Yoshitaka; Nakata, Yuji
US Patent Document 5,624,231
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=5624231

Gas turbine aerofoil
patent, June 2006

Self, Kevin P.; Bennett, Paul N.
US Patent Document 7,056,093
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=7056093

Hot gas path component with mesh and impingement cooling
patent, February 2007

Bunker, Ronald Scott; Lee, Ching-Pang
US Patent Document 7,182,576
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=7182576

Film cooling passages with curved corners
patent, August 1987

Field, Robert E.
US Patent Document 4,684,323
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=4684323

Chevron film cooled wall
patent-application, December 2005

Lee, Ching-Pang; Brassfield, Steven Robert; Bunker, Ronald Scott
US Patent Application 10/874900; 20050286998
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220050286998%22.PGNR.&OS=DN/20050286998&RS=DN/20050286998

Cooled turbine component and cooled turbine blade
patent, December 2005

Nakamata, Chiyuki; Okita, Yoji
US Patent Document 6,979,176
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=6979176

Counter-bored film-cooling holes and related method
patent-application, October 2005

Zhang, Xiuzhang Ja,es; Duer, Mark Gerard; Lewis, Doyle Clyde
US Patent Application 10/813131; 20050220618
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220050220618%22.PGNR.&OS=DN/20050220618&RS=DN/20050220618

Film cooled components
patent, February 1991

Stroud, David; Corfe, Arthur G.; Towill, Jonathan P.
US Patent Document 4,992,025
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=4992025

Coolable thin metal sheet
patent, September 1988

Auxier, Thomas A.; Stalker, Kenneth W.; Zimmerman, Anthony M.
US Patent Document 4,773,593
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=4773593

Film cooled wall
patent, May 1995

Lee, Ching-Pang
US Patent Document 5,419,681
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=5419681

Film cooling passages with step diffuser
patent, April 1988

Field, Robert E.
US Patent Document 4,738,588
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=4738588

Coolant passages for gas turbine components
patent, June 2001

Lock, Gary D.; Oldfield, Martin G.
US Patent Document 6,241,468
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=6241468

Gas turbine rotor blade
patent, August 2000

Fukue, Ichiro; Akita, Eiji; Suenaga, Kiyoshi
US Patent Document 6,099,253
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=6099253

Momentum-Preserving Shaped Holes for Film Cooling
conference, March 2009

Shih, T. I. -P.; Na, S.
ASME Turbo Expo 2007: Power for Land, Sea, and Air, Volume 4: Turbo Expo 2007, Parts A and B
https://doi.org/10.1115/GT2007-27600

Film coolant passages for cast hollow airfoils
patent, June 1987

Auxier, Thomas A.; Field, Robert E.
US Patent Document 4,676,719
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=4676719

Preventing Hot Gas Ingestion by Film-Cooling Jets via Flow-Aligned Blockers
conference, September 2008

Shih, T. I. -P.; Na, S.; Chyu, M.
ASME Turbo Expo 2006: Power for Land, Sea, and Air, Volume 3: Heat Transfer, Parts A and B
https://doi.org/10.1115/GT2006-91161

Hot gas path component with mesh and impingement cooling
patent-application, June 2005

Bunker, Ronald Scott; Lee, Ching-Pang
US Patent Application 10/881506; 20050118023
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220050118023%22.PGNR.&OS=DN/20050118023&RS=DN/20050118023

Method for improving the cooling effectiveness of a gaseous coolant stream, and related articles of manufacture
patent, May 2001

Bunker, Ronald Scott; Bailey, Jeremy Clyde; Lee, Ching-Pang
US Patent Document 6,234,755
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=6234755

Works referencing / citing this record:

Gas turbine engine components with film cooling holes having cylindrical to multi-lobe configurations
patent, May 2017

Malak, Malak Fouad; Rana, Rajiv; Tapia, Luis A.
US Patent Document 9,650,900
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=9650900

Hot gas components with compound angled cooling features and methods of manufacture
patent, July 2017

Barr, Brian Chandler; Claretti, Roberto
US Patent Document 9,708,915
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=9708915

Turbine blade
patent, September 2017

Nita, Kozo; Okita, Yoji; Nakamata, Chiyuki
US Patent Document 9,759,069
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=9759069

Gas turbine engine components with improved film cooling
patent, September 2013

Venkataramanan, Jyothishkumar; Muthiah, Gopal Samy; Ramachandran, Dhinagaran
US Patent Document 8,529,193
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=8529193

Hanger system for a turbine engine component
patent, October 2018

Lamusga, Joseph P.; Sippel, Aaron D.; Freeman, Ted J.
US Patent Document 10,100,659
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=10100659

Combustor assembly for a turbine engine
patent, May 2018

Bloom, Nicholas John; Kirtley, Daniel; Kahn, Adam Robert
US Patent Document 9,976,746
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=9976746

Combustor assembly for a turbine engine
patent, January 2019

Bloom, Nicholas John; Stieg, Michael Alan; Towle, Brian Christopher
US Patent Document 10,168,051
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=10168051

Combustor assembly for a turbine engine
patent, February 2019

Bloom, Nicholas John; Kirtley, Daniel; Stieg, Michael Alan
US Patent Document 10,197,278
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=10197278

Articles which include chevron film cooling holes, and related processes
patent, December 2014

Bunker, Ronald Scott; Lacy, Benjamin Paul
US Patent Document 8,905,713
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=8905713

Turbine engine components
patent, February 2013

Ramachandran, Dhinagaran; Srinivasan, Balamurugan; Muthiah, Gopal Samy
US Patent Document 8,371,814
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=8371814

Gas turbine engine components with cooling hole trenches
patent, January 2014

Ramachandran, Dhinagaran; Muthiah, Gopal Samy; Venkataramanan, Jyothishkumar
US Patent Document 8,628,293
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=8628293

Gas turbine engine components with lateral and forward sweep film cooling holes
patent, October 2018

Morris, Mark C.; Waldman, David R.; Malak, Malak Fouad
US Patent Document 10,113,433
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=10113433

Similar Records in DOE Patents and OSTI.GOV collections:

Articles which include chevron film cooling holes, and related processes

Patent Bunker, Ronald Scott; Lacy, Benjamin Paul

An article is described, including an inner surface which can be exposed to a first fluid; an inlet; and an outer surface spaced from the inner surface, which can be exposed to a hotter second fluid. The article further includes at least one row or other pattern of passage holes. Each passage hole includes an inlet bore extending through the substrate from the inlet at the inner surface to a passage hole-exit proximate to the outer surface, with the inlet bore terminating in a chevron outlet adjacent the hole-exit. The chevron outlet includes a pair of wing troughs having amore »« less
Full Text Available
Shape-preserving transformations of organic matter and compositions thereof

Patent Kaehr, Bryan J.; Meyer, Kristin; Townson, Jason L.

The present invention relates to methods of transforming organic matter into organic-inorganic composites, inorganic replicas, or conductive replicas. Organic matter, such as biological cells and tissue and organs, can be converted into such composites and replicas using the methods described herein. In particular, such methods transform organic matter (into inorganic, organic-inorganic, or conductive constructs), while simultaneously preserving microscopic and/or macroscopic structural detail.
Full Text Available
Shape-preserving polymeric replication of biological matter

Patent Kaehr, Bryan James

The present invention relates to a method of forming silica nanolayers on or within a biological sample, thereby capturing structural details that are present in the sample. The resultant silica composite or silica replica, in turn, can be employed as a template for a replica having those structural details captured in a polymer. Also provided herein are synthetic constructs including a polymeric replica, which can have any useful feature (e.g., oxygen-binding capacity).
Full Text Available
Shape-preserving polymeric replication of biological matter

Patent Kaehr, Bryan James

The present invention relates to a method of forming silica nanolayers on or within a biological sample, thereby capturing structural details that are present in the sample. The resultant silica composite or silica replica, in turn, can be employed as a template for a replica having those structural details captured in a polymer. Also provided herein are synthetic constructs including a polymeric replica, which can have any useful feature (e.g., oxygen-binding capacity).
Full Text Available
Mechanical design of thin-film diamond crystal mounting apparatus with optimized thermal contact and crystal strain for coherence preservation x-ray optics

Patent Shu, Deming; Shvydko, Yury; Stoupin, Stanislav; ...

A method and mechanical design for a thin-film diamond crystal mounting apparatus for coherence preservation x-ray optics with optimized thermal contact and minimized crystal strain are provided. The novel thin-film diamond crystal mounting apparatus mounts a thin-film diamond crystal supported by a thick chemical vapor deposition (CVD) diamond film spacer with a thickness slightly thicker than the thin-film diamond crystal, and two groups of thin film thermal conductors, such as thin CVD diamond film thermal conductor groups separated by the thick CVD diamond spacer. The two groups of thin CVD film thermal conductors provide thermal conducting interface media with themore »« less
Full Text Available

Similar Records

Title: Momentum preserving film-cooling shaped holes

Abstract

Citation Formats

Pressure regulated film cooling patent, March 1996

Increasing Adiabatic Film-Cooling Effectiveness by Using an Upstream Ramp journal, December 2006

Turbine bucket with optimized cooling circuit patent, April 2007

Turbine airfoil with enhanced cooling patent, September 2010

Method of laser forming a slot patent, May 1998

Cooled turbine blade for a gas turbine patent, April 1997

Gas turbine aerofoil patent, June 2006

Hot gas path component with mesh and impingement cooling patent, February 2007

Film cooling passages with curved corners patent, August 1987

Chevron film cooled wall patent-application, December 2005

Cooled turbine component and cooled turbine blade patent, December 2005

Counter-bored film-cooling holes and related method patent-application, October 2005

Film cooled components patent, February 1991

Coolable thin metal sheet patent, September 1988

Film cooled wall patent, May 1995

Film cooling passages with step diffuser patent, April 1988

Coolant passages for gas turbine components patent, June 2001

Gas turbine rotor blade patent, August 2000

Momentum-Preserving Shaped Holes for Film Cooling conference, March 2009

Film coolant passages for cast hollow airfoils patent, June 1987

Preventing Hot Gas Ingestion by Film-Cooling Jets via Flow-Aligned Blockers conference, September 2008

Hot gas path component with mesh and impingement cooling patent-application, June 2005

Method for improving the cooling effectiveness of a gaseous coolant stream, and related articles of manufacture patent, May 2001

Gas turbine engine components with film cooling holes having cylindrical to multi-lobe configurations patent, May 2017

Hot gas components with compound angled cooling features and methods of manufacture patent, July 2017

Turbine blade patent, September 2017

Gas turbine engine components with improved film cooling patent, September 2013

Hanger system for a turbine engine component patent, October 2018

Combustor assembly for a turbine engine patent, May 2018

Combustor assembly for a turbine engine patent, January 2019

Combustor assembly for a turbine engine patent, February 2019

Articles which include chevron film cooling holes, and related processes patent, December 2014

Turbine engine components patent, February 2013

Gas turbine engine components with cooling hole trenches patent, January 2014

Gas turbine engine components with lateral and forward sweep film cooling holes patent, October 2018

Pressure regulated film cooling
patent, March 1996

Increasing Adiabatic Film-Cooling Effectiveness by Using an Upstream Ramp
journal, December 2006

Turbine bucket with optimized cooling circuit
patent, April 2007

Turbine airfoil with enhanced cooling
patent, September 2010

Method of laser forming a slot
patent, May 1998

Cooled turbine blade for a gas turbine
patent, April 1997

Gas turbine aerofoil
patent, June 2006

Hot gas path component with mesh and impingement cooling
patent, February 2007

Film cooling passages with curved corners
patent, August 1987

Chevron film cooled wall
patent-application, December 2005

Cooled turbine component and cooled turbine blade
patent, December 2005

Counter-bored film-cooling holes and related method
patent-application, October 2005

Film cooled components
patent, February 1991

Coolable thin metal sheet
patent, September 1988

Film cooled wall
patent, May 1995

Film cooling passages with step diffuser
patent, April 1988

Coolant passages for gas turbine components
patent, June 2001

Gas turbine rotor blade
patent, August 2000

Momentum-Preserving Shaped Holes for Film Cooling
conference, March 2009

Film coolant passages for cast hollow airfoils
patent, June 1987

Preventing Hot Gas Ingestion by Film-Cooling Jets via Flow-Aligned Blockers
conference, September 2008

Hot gas path component with mesh and impingement cooling
patent-application, June 2005

Method for improving the cooling effectiveness of a gaseous coolant stream, and related articles of manufacture
patent, May 2001

Gas turbine engine components with film cooling holes having cylindrical to multi-lobe configurations
patent, May 2017

Hot gas components with compound angled cooling features and methods of manufacture
patent, July 2017

Turbine blade
patent, September 2017

Gas turbine engine components with improved film cooling
patent, September 2013

Hanger system for a turbine engine component
patent, October 2018

Combustor assembly for a turbine engine
patent, May 2018

Combustor assembly for a turbine engine
patent, January 2019

Combustor assembly for a turbine engine
patent, February 2019

Articles which include chevron film cooling holes, and related processes
patent, December 2014

Turbine engine components
patent, February 2013

Gas turbine engine components with cooling hole trenches
patent, January 2014

Gas turbine engine components with lateral and forward sweep film cooling holes
patent, October 2018