(19)
(11) EP 2 618 059 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
31.12.2014 Bulletin 2015/01

(43) Date of publication A2:
24.07.2013 Bulletin 2013/30

(21) Application number: 13151601.5

(22) Date of filing: 17.01.2013
(51) International Patent Classification (IPC): 
F23R 3/28(2006.01)
F23D 14/62(2006.01)
F23R 3/14(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: 18.01.2012 US 201213352814

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

(72) Inventors:
  • Parsania, Nishant Govindbhai
    Schenectady, NY New York 12345 (US)
  • Singh, Ajay Pratap
    Schenectady, NY New York 12345 (US)

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

   


(54) Combustor nozzle/premixer with curved sections


(57) An apparatus for premixing fuel and air prior to combustion in a gas turbine engine includes an annular fuel passage (62) receiving fuel from a fuel source. The annular fuel passage (62) includes a fuel plenum (68) and has a wave shape with a peak section surrounded by trough sections. An annular air passage (70) surrounds the annular fuel passage (62). The annular air passage (70) receives air to be mixed with the fuel in the fuel passage (62) for downstream combustion. A plurality of swirler vanes (72) are disposed in the annular air passage (70) adjacent the fuel plenum (68).







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Search report