(19)
(11) EP 2 019 913 A1

(12)

(43) Date of publication:
04.02.2009 Bulletin 2009/06

(21) Application number: 06759705.4

(22) Date of filing: 12.05.2006
(51) International Patent Classification (IPC): 
F01D 5/30(2006.01)
(86) International application number:
PCT/US2006/018473
(87) International publication number:
WO 2007/133204 (22.11.2007 Gazette 2007/47)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR MK YU

(71) Applicant: GENERAL ELECTRIC COMPANY
Schenectady, NY 12345 (US)

(72) Inventors:
  • MOHR, Patrick, J.
    Greer, SC 29650 (US)
  • FERNANDEZ, Emilio
    Taylors, SC 29687 (US)
  • RAJANNA, Anil, B.
    Karnataka (IN)
  • SEERANGAN, Murugesan
    Karnataka (IN)
  • DEWANGAN, Kamlesh
    Karnataka (IN)

(74) Representative: Gray, Thomas 
GE International Inc. London Patent Operation 15 John Adam Street
London WC2N 6LU
London WC2N 6LU (GB)

   


(54) BLADE/DISK DOVETAIL BACKCUT FOR BLADE/DISK STRESS REDUCTION (6FA+e, STAGE 2)