ATBECHDEDKESFRGBGRITLILUNLSEMCPTIESILTLVFIROMKCYALTRBGCZEEHUPLSKBAHRIS..MTNORS......................JJDIM360 Ver 1.28 (29 Oct 2014) - 1620000/01985920EUROPEAN PATENT APPLICATIONA320160427EP08007935.32008042420090618enenen200711630520070426JP200808915420080331JP2016042720161720081029200844F23C 3/00 20060101AFI20160322BHEP F23R 3/28 20060101ALI20160322BHEP deVerbrennungsanlage und Kraftstoffversorgungsverfahren für die VerbrennungsanlageenCombustor and a fuel suppy method for the combustorfrChambre de combustion et procédé d'alimentation en combustible pour la chambre de combustion1Mitsubishi Hitachi Power Systems, Ltd.1015130510290-66.293EP3-1, Minatomirai 3-chome, Nishi-ku,Yokohama 220-8401JPMiura, KeisukeHitachi, Ltd. Intel. Prop. Gr. 12th Floor Marunouchi Center Building 1-6-1, MarunouchiChiyoda-ku Tokyo 100-8220JPInoue, HiroshiHitachi, Ltd. Intel. Prop. Gr. 12th Floor Marunouchi Center Building 1-6-1, MarunouchiChiyoda-ku Tokyo 100-8220JPKoyama, KazuhitoHitachi, Ltd. Intel. Prop. Gr. 12th Floor Marunouchi Center Building 1-6-1, MarunouchiChiyoda-ku Tokyo 100-8220JPSaito, TakeoHitachi, Ltd. Intel. Prop. Gr. 12th Floor Marunouchi Center Building 1-6-1, MarunouchiChiyoda-ku Tokyo 100-8220JPMERH-IP Matias Erny Reichl Hoffmann Patentanwälte PartG mbB101060911Paul-Heyse-Strasse 2980336 MünchenDEATBEBGCHCYCZDEDKEEESFIFRGBGRHRHUIEISITLILTLULVMCMTNLNOPLPTROSESISKTRALBAMKRS20160427201617

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.

0290-66.293EPEP08007935.3Mitsubishi Hitachi Power Systems, Ltd.1DH20160330F23RUS2004000146A1INOUE HIROSHI [JP] ET AL20040101X1-3,6,7,9-11Y4,5,8* paragraph [0047] - paragraph [0063]; figures 4-5 *EP1288575A2HITACHI LTD20030305X1-3,6,7,9-11Y4,5,8* abstract; figures 1-11 *EP1731833A1EBARA CORP [JP]20061213Y4,5,8A1-3* abstract; figure 1 *US5660045AITO KAZUYUKI [JP] ET AL19970826Y4,5,8* abstract; figure 1 *Munteh, LouisThe Hague20160315US2004000146A120040101US2004000146A120040101US2005210880A120050929US2006016199A120060126US2006042264A120060302EP1288575A220030305CN1401938A20030312DE60216206T220070705EP1288575A220030305EP1684016A120060726EP1843099A220071010JP4998581B220120815JP2009079893A20090416JP2010156350A20100715US2004011054A120040122US2004045297A120040311US2004163393A120040826US2005000222A120050106EP1731833A120061213CN1918432A20070221EP1731833A120061213US2008193886A120080814WO2005075887A120050818US5660045A19970826JP3183053B220010703JPH0828874A19960202US5660045A19970826