(19)
(11) EP 2 690 255 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
19.07.2017 Bulletin 2017/29

(43) Date of publication A2:
29.01.2014 Bulletin 2014/05

(21) Application number: 13177215.4

(22) Date of filing: 19.07.2013
(51) International Patent Classification (IPC): 
F01D 9/04(2006.01)
F01D 25/24(2006.01)
 F01D 11/00(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: 23.07.2012 US 201213555417

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

(72) Inventors:
  • Kulkarni, Shruti
    560066 Bangalore, Karnataka (IN)
  • Pawlowski, Joseph Vincent
    Phoenix, AZ Arizona 85037 (US)
  • Giri, Sheo Narain
    560066 Bangalore, Karnataka (IN)

(74) Representative: Cleary, Fidelma 
GPO Europe GE International Inc. The Ark 201 Talgarth Road Hammersmith
London W6 8BJ
London W6 8BJ (GB)

   


(54) Nozzle segment for turbine system


(57) A nozzle (24) for a turbine system (10) is disclosed. The nozzle (24) includes an airfoil (40), an inner sidewall (42), and an outer sidewall (44). The airfoil (40) includes exterior surface defining a pressure side (52) and a suction side (54) extending between a leading edge (56) and a trailing edge (58). The airfoil further defines a tip (62) and a root. The inner sidewall (44) is connected to the airfoil (40) at the tip (62). The outer sidewall (44) is connected to the airfoil (40) at the root. The inner sidewall (42) and outer sidewall (44) each includes a peripheral edge (70,80) defining a pressure side slash face (72,82), a suction side slash face (74,84), a leading edge face (76,86), and a trailing edge face (78,88). At least one of the inner sidewall pressure side slash face (72), the inner sidewall suction side slash face (74), the outer sidewall pressure side slash face (82), or the outer sidewall suction side slash face (84) has a generally curvilinear profile.







Search report









Search report