(19)

(11)

EP 2 643 635 A1

(12)

(43) Date of publication: 02.10.2013 Bulletin 2013/40 (21) Application number: 11790587.7 (22) Date of filing: 23.11.2011

(51) International Patent Classification (IPC):  F23D 14/46(2006.01) (86) International application number: PCT/EP2011/070805 (87) International publication number: WO 2012/069534 (31.05.2012 Gazette 2012/22)

(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: 26.11.2010 EP 10192674 (71) Applicant: Bekaert Combustion Technology B.V. 9403 AR Assen (NL)	(72) Inventors: LAMBERTS, Dinand NL-9403 ZA Assen (NL) VAN WIJK, Arnoldus Martinus NL-9405 PH Assen (NL) (74) Representative: Messely, Marc  NV Bekaert SA D.I.E. Bekaertstraat 2 8550 Zwevegem 8550 Zwevegem (BE)