(19)

(11)

EP 2 553 341 A1

(12)

(43) Date of publication: 06.02.2013 Bulletin 2013/06 (21) Application number: 11728817.5 (22) Date of filing: 22.06.2011

(51) International Patent Classification (IPC):  F23R 3/00(2006.01) (86) International application number: PCT/EP2011/060492 (87) International publication number: WO 2012/004131 (12.01.2012 Gazette 2012/02)

(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 (30) Priority: 05.07.2010 EP 10168429 (71) Applicant: Siemens Aktiengesellschaft 80333 München (DE)	(72) Inventor: SANDERSON, Victoria Newark Nottinghamshire NG24 4SR (GB)