(19)

(11)

EP 2 721 346 A2

(12)

(88) Date of publication A3: 12.12.2013 (43) Date of publication: 23.04.2014 Bulletin 2014/17 (21) Application number: 12726805.0 (22) Date of filing: 11.06.2012

(51) International Patent Classification (IPC):  F23N 5/10(2006.01) F23D 14/10(2006.01) F23N 1/00(2006.01) (86) International application number: PCT/EP2012/061018 (87) International publication number: WO 2012/171879 (20.12.2012 Gazette 2012/51)

(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: 15.06.2011 ES 201131008 P (71) Applicant: ORKLI, S. COOP. 20240 Ordizia (Gipuzkoa) (ES)	(72) Inventors: ARIZMENDI ZURUTUZA, Mikel E-20240 Ordizia (ES) PABLO CURTO, Marcos E-20120 Hernani (ES) (74) Representative: Igartua, Ismael  Galbaian S.Coop. Polo de Innovación Garaia Goiru Kalea 1 - P.O. Box 213 20500 Arrasate-Mondragón 20500 Arrasate-Mondragón (ES)