(19)
(11) EP 2 860 447 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
08.07.2015 Bulletin 2015/28

(43) Date of publication A2:
15.04.2015 Bulletin 2015/16

(21) Application number: 14188201.9

(22) Date of filing: 08.10.2014
(51) International Patent Classification (IPC): 
F23C 6/04(2006.01)
F23C 5/32(2006.01)
 F23L 9/00(2006.01)
F23C 7/02(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: 08.10.2013 GB 201317795

(71) Applicant: RJM Corporation (EC) Ltd
Winchester, SO23 7AT (GB)

(72) Inventors:
  • Goldring, John
    Winchester SO23 8AT (GB)
  • Billett, Stephen
    Winchester SO23 8AT (GB)
  • Berg, Lawrence
    Winchester SO23 8AT (GB)

(74) Representative: chapman + co 
18 Staple Gardens
Winchester, Hampshire SO23 8SR
Winchester, Hampshire SO23 8SR (GB)

   


(54) Air injection systems for combustion chambers


(57) A combustion system (10) comprises a combustion chamber (12) and a flue gas duct (14) located downstream of the combustion chamber to receive combustion products from the combustion chamber, the combustion chamber has a base and (16) an enclosing wall (18) connecting the base to the flue gas duct. The combustion chamber is provided with a plurality of combustion devices (20), the combustion devices being configured to deliver fuel and gas and/or air into the combustion chamber so as to generate a fireball within a combustion zone (22) in the combustion chamber, the combustion devices further being configured such that the generated fireball rotates about an axis extending between the base and the flue duct. A secondary gas and/or air nozzle is provided in the base of the combustion chamber, at a location upstream of the combustion zone, the nozzle being for delivering gas and/or air into the combustion zone in a direction towards the flue duct.







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