(19)
(11) EP 2 167 873 A2

(12)

(88) Date of publication A3:
04.06.2009

(43) Date of publication:
31.03.2010 Bulletin 2010/13

(21) Application number: 08832671.5

(22) Date of filing: 19.06.2008
(51) International Patent Classification (IPC): 
F23C 6/04(2006.01)
F27B 3/20(2006.01)
(86) International application number:
PCT/US2008/067456
(87) International publication number:
WO 2009/038849 (26.03.2009 Gazette 2009/13)
(84) Designated Contracting States:
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
Designated Extension States:
AL BA MK RS

(30) Priority: 29.06.2007 US 937768 P
17.06.2008 US 140321

(71) Applicant: Praxair Technology, Inc.
Danbury, CT 06810 (US)

(72) Inventor:
  • KOBAYASHI, Hisashi
    Putnam Valley NY 10579 (US)

(74) Representative: Schwan, Ivo 
Schwan Schwan Schorer Patentanwälte Bauerstrasse 22
80796 München
80796 München (DE)

   


(54) LOW VELOCITY STAGED COMBUSTION FOR FURNACE ATMOSPHERE CONTROL