Articles which include chevron film cooling holes, and related processes
Abstract
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 a common surface region between them. The common surface region includes a valley which is adjacent the hole-exit; and a plateau adjacent the valley. The article can be an airfoil. Related methods for preparing the passage holes are also described.
- Inventors:
- Issue Date:
- Research Org.:
- GE Global Research, Niskayuna, New York (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1165137
- Patent Number(s):
- 8905713
- Application Number:
- 12/790,675
- Assignee:
- General Electric Company (Niskayuna, NY)
- 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
- DOE Contract Number:
- FC26-05NT42643
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2010 May 28
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 33 ADVANCED PROPULSION SYSTEMS; 42 ENGINEERING
Citation Formats
Bunker, Ronald Scott, and Lacy, Benjamin Paul. Articles which include chevron film cooling holes, and related processes. United States: N. p., 2014.
Web.
Bunker, Ronald Scott, & Lacy, Benjamin Paul. Articles which include chevron film cooling holes, and related processes. United States.
Bunker, Ronald Scott, and Lacy, Benjamin Paul. Tue .
"Articles which include chevron film cooling holes, and related processes". United States. https://www.osti.gov/servlets/purl/1165137.
@article{osti_1165137,
title = {Articles which include chevron film cooling holes, and related processes},
author = {Bunker, Ronald Scott and Lacy, Benjamin Paul},
abstractNote = {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 a common surface region between them. The common surface region includes a valley which is adjacent the hole-exit; and a plateau adjacent the valley. The article can be an airfoil. Related methods for preparing the passage holes are also described.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {12}
}
Works referenced in this record:
Method and apparatus for forming diffused cooling holes in an airfoil
patent, April 1980
- Sidenstick, James E.
- US Patent Document 4,197,443
Vortex generating flow passage design for increased film cooling effectiveness
patent, July 1985
- Papell, S. Stephen
- US Patent Document 4,529,358
Electrode for electrical discharge machining film cooling passages in an airfoil
patent, March 1987
- Field, Robert E.
- US Patent Document 4,650,949
Cross-flow film cooling passages
patent, March 1987
- Vehr, James William
- US Patent Document 4,653,983
Coolant passages with full coverage film cooling slot
patent, May 1987
- Auxier, Thomas A.; Anderson, Leon R.; Hill, Edward C.
- US Patent Document 4,664,597
Method of fabricating film cooling slot in a hollow airfoil
patent, June 1987
- Field, Robert E.
- US Patent Document 4,672,727
Film cooling passages with step diffuser
patent, April 1988
- Field, Robert E.
- US Patent Document 4,738,588
Airfoil with diffused cooling holes and method and apparatus for making the same
patent, August 1988
- Vertz, Richard J.; Mosavi, Reza K.
- US Patent Document 4,762,464
Method and apparatus for making diffused cooling holes in an airfoil
patent, February 1989
- Vertz, Richard J.; Mosavi, Reza K.
- US Patent Document 4,808,785
Cooled turbomachinery components
patent, November 1991
- Marriage, Peter V.
- US Patent Document 5,062,768
Film cooled components
patent, March 1992
- Stroud, David; Corfe, Arthur G.; Towill, Jonathan P. W.
- US Patent Document 5,096,379
Laser drilling of non-circular apertures
patent, March 1997
- Crow, John M.; Kelley, James G.; Rockstroh, Todd Jay
- US Patent Document 5,609,779
Device for recovering abrasives in water jet cutting systems
patent, November 1999
- Herrmann, Rolf; Lehmann, Alfred; Walden, Matthias
- US Patent Document 5,979,663
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
Method of producing a noncircular cooling bore
patent, October 2001
- Blöchlinger, Michael; Luketic, Ivan; Semmler, Klaus
- US Patent Document 6,307,175
Method for forming shaped holes
patent, December 2001
- Fehrenbach, Jeffrey; Starkweather, John Howard; Beverley, Michael
- US Patent Document 6,329,015
Method for improving the cooling effectiveness of a gaseous coolant stream which flows through a substrate, and related articles of manufacture
patent, May 2002
- Fric, Thomas Frank; Campbell, Robert P.
- US Patent Document 6,383,602
Process for drilling holes through a thermal barrier coating
patent, June 2003
- Loringer, Gary
- US Patent Document 6,573,474
Method of laser drilling a hole
patent, March 2004
- Wybrow, Michael N.; Milward, Terence S.
- US Patent Document 6,706,996
Method of removing a coating from a substrate
patent, June 2005
- Miller, Mitch; Rugh, Jr., John F.
- US Patent Document 6,905,396
Coated component with through-hole having improved surface finish
patent, June 2005
- Farmer, Gilbert; Fehrenbach, Jeffrey
- US Patent Document 6,908,657
Apparatus and method for machining in confined spaces
patent, November 2005
- Lee, Martin Kin-Fei; Sassatelli, John Matthew; Fischer, Todd
- US Patent Document 6,969,817
Hot gas path component with mesh and turbulated cooling
patent, January 2006
- Bunker, Ronald Scott; Bailey, Jeremy Clyde; Lee, Ching-Pang
- US Patent Document 6,984,102
Hot gas path component with mesh and dimpled cooling
patent, March 2007
- Bunker, Ronald Scott; Bailey, Jeremy Clyde; Lee, Ching-Pang
- US Patent Document 7,186,084
Chevron film cooled wall
patent, February 2008
- Lee, Ching-Pang; Brassfield, Steven Robert; Bunker, Ronald Scott
- US Patent Document 7,328,580
Combustor cooling with angled segmented surfaces
patent, May 2008
- Bunker, Ronald Scott; Bailey, Jeremy Clyde; Widener, Stanley Kevin
- US Patent Document 7,373,778
Momentum preserving film-cooling shaped holes
patent, August 2011
- Shih, Tom I-P; Na, Sangkwon
- US Patent Document 7,997,867
Film cooling hole for turbine airfoil
patent, November 2011
- Liang, George
- US Patent Document 8,057,179
Method and apparatus for laser cutting a trench
patent, November 2012
- Bunker, Ronald Scott; Zhang, Wenwu; Scheidt, Wilbur Douglas
- US Patent Document 8,319,146
Turbine airfoil concave cooling passage using dual-swirl flow mechanism and method
patent, February 2013
- Bunker, Ronald Scott; Itzel, Gary Michael
- US Patent Document 8,376,706
Components with re-entrant shaped cooling channels and methods of manufacture
patent, March 2013
- Bunker, Ronald Scott; Wei, Bin; Hammond, Mitchell Nile
- US Patent Document 8,387,245
Methods of fabricating a coated component using multiple types of fillers
patent, September 2013
- Rebak, Raul Basilio; Bunker, Ronald Scott; Kool, Lawrence Bernard
- US Patent Document 8,528,208
Methods of manufacture for components with cooling channels
patent, September 2013
- Bunker, Ronald Scott
- US Patent Document 8,533,949
Method of forming a shaped hole
patent-application, May 2003
- Byrd, Pamela J.; Hastilow, Neil K.; Stevens, Martin J.
- US Patent Application 10/283146; 20030091432
Cooled turbine component and cooled turbine blade
patent-application, June 2005
- Nakamata, Chiyuki; Okita, Yoji
- US Patent Application 10/813397; 20050135931
Chevron film cooled wall
patent-application, December 2005
- Lee, Ching-Pang; Brassfield, Steven Robert; Bunker, Ronald Scott
- US Patent Application 10/874900; 20050286998
High coverage cooling hole shape
patent-application, January 2008
- Kohli, Atul; Staubach, Joseph B.; Doll, Stephen D.
- US Patent Application 11/477293; 20080003096
Turbine Component
patent-application, November 2008
- Okita, Yoji
- US Patent Application 12/092195; 20080286090
Development of High Performance Film Cooling of 1700 Degree C Class Gas Turbines [1700°C級ガスタービン高性能フィルム冷却の開発]
journal, January 2007
- Hada, Satoshi; Matsuura, Masaaki; Tsukagoshi, Keizo
- Journal of High Temperature Society, Vol. 33, Issue 5
Works referencing / citing this record:
Components with microchannel cooling
patent, March 2017
- Bunker, Ronald Scott
- US Patent Document 9,598,963
Film cooling channel array with multiple metering portions
patent, April 2016
- Xu, JinQuan; Levasseur, Glenn
- US Patent Document 9,309,771
Components with microchannel cooling
patent, February 2016
- Bunker, Ronald Scott
- US Patent Document 9,249,670
Backstrike protection during machining of cooling features
patent, February 2016
- Bonini, Eric Richard; Bunker, Ronald Scott
- US Patent Document 9,248,530
Components with microchannel cooled platforms and fillets and methods of manufacture
patent, January 2016
- Bunker, Ronald Scott
- US Patent Document 9,243,503