Global Patent Index - EP 1985920 B1

EP 1985920 B1 20190410 - Combustor and a fuel suppy method for the combustor

Title (en)

Combustor and a fuel suppy method for the combustor

Title (de)

Verbrennungsanlage und Kraftstoffversorgungsverfahren für die Verbrennungsanlage

Title (fr)

Chambre de combustion et procédé d'alimentation en combustible pour la chambre de combustion

Publication

EP 1985920 B1 20190410 (EN)

Application

EP 08007935 A 20080424

Priority

  • JP 2007116305 A 20070426
  • JP 2008089154 A 20080331

Abstract (en)

[origin: EP1985920A2] It is an object of the present invention to maintain flame stability in a combustor using coaxial jets even if NOx is further reduced. A combustor (100) includes a chamber (1) mixing and burning fuel and air; an air hole plate (50) disposed on a wall surface of the chamber (1), the air hole plate (50) including a plurality of rows disposed concentrically of a plurality of air holes (51) jetting coaxial jets of fuel and air into the chamber (1); and a first fuel nozzle (42) and a second fuel nozzle (43) disposed near a fuel hole jetting fuel into an air hole row on an inner peripheral side, the first fuel nozzle (42) being structured to suppress turbulence of a surrounding air flow and the second fuel nozzle (43) being structured to promote turbulence of a surrounding air flow. In accordance with the aspect of the present invention, good flame stability can be maintained even by further reducing NOx in a combustor using coaxial jets.

IPC 8 full level

F23C 3/00 (2006.01); F23R 3/28 (2006.01)

CPC (source: EP)

F23R 3/28 (2013.01)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

DOCDB simple family (publication)

EP 1985920 A2 20081029; EP 1985920 A3 20160427; EP 1985920 B1 20190410

DOCDB simple family (application)

EP 08007935 A 20080424