(19)
(11)EP 2 497 905 A3

(12)EUROPEAN PATENT APPLICATION

(88)Date of publication A3:
03.01.2018 Bulletin 2018/01

(43)Date of publication A2:
12.09.2012 Bulletin 2012/37

(21)Application number: 12150104.3

(22)Date of filing:  03.01.2012
(51)International Patent Classification (IPC): 
F01D 5/28(2006.01)
F01D 5/20(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: 07.03.2011 US 201113042034

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

(72)Inventor:
  • Garcia-Crespo, Andres
    Greenville, SC 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 bucket for use in gas turbine engines and methods for fabricating the same


(57) A turbine bucket (32) for use with a turbine engine is provided. The turbine bucket includes an airfoil (66) extending between a root end (88) and a tip end (90). The airfoil includes an outer wall (106) defining a cavity (112) extending from the root end to the tip end, the outer wall comprising a first ceramic matrix composite (CMC) substrate (107) extending a first distance from the root end to the tip end, and an inner wall (104) positioned within the cavity, the inner wall comprising a second CMC substrate (124) extending a second distance from the root end towards the tip end that is different than the first distance.







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Search report