(19)
(11) EP 2 719 953 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
03.01.2018 Bulletin 2018/01

(43) Date of publication A2:
16.04.2014 Bulletin 2014/16

(21) Application number: 13187920.7

(22) Date of filing: 09.10.2013
(51) International Patent Classification (IPC): 
F23R 3/36(2006.01)
 F23R 3/28(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: 09.10.2012 US 201213647867

(71) Applicant: Delavan Inc.
West Des Moines, IA 50265 (US)

(72) Inventor:
  • Prociw, Lev Alexander
    Johnston, IA Iowa 50131 (US)

(74) Representative: Hall, Matthew Benjamin 
Dehns St Bride's House 10 Salisbury Square
London EC4Y 8JD
London EC4Y 8JD (GB)

   


(54) Multipoint injectors with auxiliary stage


(57) A multipoint combustion system for a gas turbine engine includes a housing defining a pressure vessel. A master injector (124) is mounted to the housing (102) for injecting fuel along a central axis. A plurality of slave injectors (112) are each disposed outward of the master injector for injecting fuel and air in an ignition plume radially outward of fuel injected through the master injector. The master injector and slave injectors are configured and adapted so the injection plume of the master injector intersects with the ignition plumes of the slave injectors. A primary manifold (114) is included within the pressure vessel for distributing fuel to the slave injectors. An auxiliary manifold (116) is in fluid communication with the auxiliary nozzles of the slave injectors for issuing an auxiliary flow of fuel from the auxiliary nozzles that is separate from the fuel flow of the primary manifold.







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