(19)
(11) EP 2 631 434 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
26.07.2017 Bulletin 2017/30

(43) Date of publication A2:
28.08.2013 Bulletin 2013/35

(21) Application number: 13156445.2

(22) Date of filing: 22.02.2013
(51) International Patent Classification (IPC): 
F01D 11/24(2006.01)
F01D 25/24(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: 22.02.2012 US 201213402616

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

(72) Inventors:
  • Franks, Michael John
    Cincinnati, OH Ohio 45215 (US)
  • Shapiro, Jason David
    Lynn, MA Massachusetts 01910 (US)
  • Rulli, Samuel Ross
    Gloucester, MA Massachusetts 01930 (US)
  • Doughty, Roger Lee
    Cincinnati, OH Ohio 45215 (US)
  • Jamison, Joshua Brian
    Cincinnati, OH Ohio 45215 (US)

(74) Representative: Williams, Andrew Richard 
GE International Inc. GPO-Europe The Ark 201 Talgarth Road Hammersmith
London W6 8BJ
London W6 8BJ (GB)

   


(54) Low-ductility turbine shroud


(57) A shroud segment (118) for a gas turbine engine, the shroud segment constructed from a composite material including reinforcing fibers embedded in a matrix, and having a cross-sectional shape defined by opposed forward and aft walls (124,126), and opposed inner and outer walls (120,122), the walls extending between opposed first and second end faces, wherein the inner wall defines an arcuate inner flowpath surface; and wherein a compound fillet (119) is disposed at a junction between first and second ones of the walls, the compound fillet including first and second portions (119A,119B) the second portion having a concave curvature extending into the first one of the walls.







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Search report