(19)
(11)EP 1 622 245 A3

(12)EUROPEAN PATENT APPLICATION

(88)Date of publication A3:
13.10.2010 Bulletin 2010/41

(43)Date of publication A2:
01.02.2006 Bulletin 2006/05

(21)Application number: 05254272.7

(22)Date of filing:  07.07.2005
(51)Int. Cl.: 
H02K 15/00  (2006.01)
(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

(30)Priority: 28.07.2004 US 900184

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

(72)Inventors:
  • Wang, Yu
    Clifton Park, New York 12065 (US)
  • Breznak, Jeffrey Michael
    Waterford, New York 12188 (US)
  • Sowers, Lawrence Lee
    Ballston, New York 12019 (US)

(74)Representative: Pedder, James Cuthbert 
London Patent Operation, General Electric International, Inc., 15 John Adam Street
London WC2N 6LU
London WC2N 6LU (GB)

  


(54)Metallic barrier coating for generator stator bar end fitting and method for applying the coating


(57) A method of sealing a generator stator bar and a stator bar end fitting receiving the end including the steps of: brazing the fitting to the end of the stator bar with a braze material; applying a metallic barrier coating material to the end of the stator bar in the fitting; heating the fitting at a temperature at least as hot as a liquidus temperature of the metallic coating material and cooler than a solidus temperature of the braze material; coating the end of the stator bar in the fitting with liquid metallic barrier coating material, and solidifying the liquefied metallic coating material to form a metallic barrier coating on the end of the stator bar in the fitting.