(19)
(11) EP 2 090 748 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
19.05.2010 Bulletin 2010/20

(43) Date of publication A2:
19.08.2009 Bulletin 2009/34

(21) Application number: 09152448.8

(22) Date of filing: 10.02.2009
(51) International Patent Classification (IPC): 
F01D 5/22(2006.01)
(84) Designated Contracting States:
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 SE SI SK TR
Designated Extension States:
AL BA RS

(30) Priority: 13.02.2008 US 30317

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

(72) Inventors:
  • Bruce, Kevin Leon
    Greer, SC 29651 (US)
  • Cairo, Ronald Ralph
    Greer, SC 29650 (US)
  • Rollings, Richard Gordon
    Greer, SC 29650 (US)

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

   


(54) Shroud assembly for a turbomachine


(57) A rotating assembly (31) for a turbomachine (2) includes a plurality of rotating members (46) that extend radially outward from a central hub (47). Each of the plurality of rotating members (46) includes a base portion (48) detachably mounted to the central hub (47), a tip portion (49), a mid-span portion (50) that extends between the base portion (48) and the tip portion (49), and a shroud portion (60, 70) positioned at one of the tip portion (49) and the mid-span portion (50). The shroud portion (60, 70) includes a pressure side (73) and a suction side (72). At least one hard face interface member (100, 120) is secured to at least one of the suction side (72) and the pressure side (73) of the shroud portion (60, 70). The at least one hard face interface member (100, 120) is both mechanically interlocked with, and metallurgically bonded to, the shroud portion (60, 70).







Search report