(19)

(11)

EP 3 781 865 A1

(12)

(43) Date of publication: 24.02.2021 Bulletin 2021/08 (21) Application number: 19714669.9 (22) Date of filing: 03.04.2019

(51) International Patent Classification (IPC):  F23D 14/02(2006.01) F23D 14/14(2006.01) (86) International application number: PCT/EP2019/058360 (87) International publication number: WO 2019/201599 (24.10.2019 Gazette 2019/43)

(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 Designated Validation States: KH MA MD TN (30) Priority: 19.04.2018 EP 18168254 13.07.2018 EP 18183284 (71) Applicant: Bekaert Combustion Technology B.V. 9403 AR Assen (NL)	(72) Inventors: KOOITJE, Geertjan 9403 AR ASSEN (NL) VERHOOGT, Mathieu 9403 AR ASSEN (NL) (74) Representative: EP&C  P.O. Box 3241 2280 GE Rijswijk 2280 GE Rijswijk (NL)