(19)
(11) EP 2 557 274 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
17.05.2017 Bulletin 2017/20

(43) Date of publication A2:
13.02.2013 Bulletin 2013/07

(21) Application number: 12179235.2

(22) Date of filing: 03.08.2012
(51) International Patent Classification (IPC): 
F01D 11/04(2006.01)
 F01D 11/00(2006.01)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME

(30) Priority: 09.08.2011 US 201113205763

(71) Applicant: General Electric Company
Schenectady, NY 12345 (US)

(72) Inventors:
  • Smith, Aaron Ezekiel
    Greenville, South Carolina 29615 (US)
  • Boyer, Bradley
    Greenville, South Carolina 29615 (US)
  • Giglio, Anthony Louis
    Greenville, South Carolina 29615 (US)
  • Gustafson, Ross James
    Greenville, South Carolina 29615 (US)
  • Penny, Christospher Michael
    Greenville, South Carolina 29615 (US)

(74) Representative: Cleary, Fidelma 
GPO Europe GE International Inc. The Ark 201 Talgarth Road Hammersmith
London W6 8BJ
London W6 8BJ (GB)

   


(54) Turbine airfoil and method for controlling a temperature of a turbine airfoil


(57) According to one aspect of the invention, a turbine airfoil (200) includes a platform (202) and a blade (204) extending from the platform (202). The airfoil (200) also includes a slot (208) formed in a slashface (210) of the platform (202), the slot (208) being configured to receive a pressurized fluid via passages (212) and configured to direct the pressurized fluid to a selected region of the turbine airfoil (200). The pressurized fluid forms a barrier to restrict the flow of hot gas accross the slashface (210), thus improving the airfoil life.
And corresponding method for controlling the temperature of the airfoil.







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Search report