Articles which include chevron film cooling holes, and related processes

Bunker, Ronald Scott; Lacy, Benjamin Paul

Title: Articles which include chevron film cooling holes, and related processes

Patent · Tue Dec 09 00:00:00 EST 2014

OSTI ID:1165137

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 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.

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Research Organization:: GE Global Research, Niskayuna, New York (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: FC26-05NT42643

Assignee:: General Electric Company (Niskayuna, NY)

Patent Number(s):: 8,905,713

Application Number:: 12/790,675

OSTI ID:: 1165137

Resource Relation:: Patent File Date: 2010 May 28

Country of Publication:: United States

Language:: English

References (39)

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Method for improving the cooling effectiveness of a gaseous coolant stream, and related articles of manufacture Bunker, Ronald Scott; Bailey, Jeremy Clyde; Lee, Ching-Pang https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6234755 US Patent Document 6,234,755	patent	May 2001
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Hot gas path component with mesh and turbulated cooling Bunker, Ronald Scott; Bailey, Jeremy Clyde; Lee, Ching-Pang https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6984102 US Patent Document 6,984,102	patent	January 2006
Hot gas path component with mesh and dimpled cooling Bunker, Ronald Scott; Bailey, Jeremy Clyde; Lee, Ching-Pang https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7186084 US Patent Document 7,186,084	patent	March 2007
Chevron film cooled wall Lee, Ching-Pang; Brassfield, Steven Robert; Bunker, Ronald Scott https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7328580 US Patent Document 7,328,580	patent	February 2008
Combustor cooling with angled segmented surfaces Bunker, Ronald Scott; Bailey, Jeremy Clyde; Widener, Stanley Kevin https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7373778 US Patent Document 7,373,778	patent	May 2008
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Film cooling hole for turbine airfoil Liang, George https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8057179 US Patent Document 8,057,179	patent	November 2011
Method and apparatus for laser cutting a trench Bunker, Ronald Scott; Zhang, Wenwu; Scheidt, Wilbur Douglas https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8319146 US Patent Document 8,319,146	patent	November 2012
Turbine airfoil concave cooling passage using dual-swirl flow mechanism and method Bunker, Ronald Scott; Itzel, Gary Michael https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8376706 US Patent Document 8,376,706	patent	February 2013
Components with re-entrant shaped cooling channels and methods of manufacture Bunker, Ronald Scott; Wei, Bin; Hammond, Mitchell Nile https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8387245 US Patent Document 8,387,245	patent	March 2013
Methods of fabricating a coated component using multiple types of fillers Rebak, Raul Basilio; Bunker, Ronald Scott; Kool, Lawrence Bernard https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8528208 US Patent Document 8,528,208	patent	September 2013
Methods of manufacture for components with cooling channels Bunker, Ronald Scott https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8533949 US Patent Document 8,533,949	patent	September 2013
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Cooled turbine component and cooled turbine blade Nakamata, Chiyuki; Okita, Yoji https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20050135931 US Patent Application 10/813397; 20050135931	patent-application	June 2005
Chevron film cooled wall Lee, Ching-Pang; Brassfield, Steven Robert; Bunker, Ronald Scott https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20050286998 US Patent Application 10/874900; 20050286998	patent-application	December 2005
High coverage cooling hole shape Kohli, Atul; Staubach, Joseph B.; Doll, Stephen D. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20080003096 US Patent Application 11/477293; 20080003096	patent-application	January 2008
Turbine Component Okita, Yoji https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20080286090 US Patent Application 12/092195; 20080286090	patent-application	November 2008
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] Hada, Satoshi; Matsuura, Masaaki; Tsukagoshi, Keizo Journal of High Temperature Society, Vol. 33, Issue 5 https://doi.org/10.7791/jhts.33.264	journal	January 2007

Cited By (5)

Components with microchannel cooling Bunker, Ronald Scott https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/9598963 US Patent Document 9,598,963	patent	March 2017
Film cooling channel array with multiple metering portions Xu, JinQuan; Levasseur, Glenn https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/9309771 US Patent Document 9,309,771	patent	April 2016
Components with microchannel cooling Bunker, Ronald Scott https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/9249670 US Patent Document 9,249,670	patent	February 2016
Backstrike protection during machining of cooling features Bonini, Eric Richard; Bunker, Ronald Scott https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/9248530 US Patent Document 9,248,530	patent	February 2016
Components with microchannel cooled platforms and fillets and methods of manufacture Bunker, Ronald Scott https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/9243503 US Patent Document 9,243,503	patent	January 2016

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