(19)

(11)

EP 2 318 796 A1

(12)

(43) Date of publication: 11.05.2011 Bulletin 2011/19 (21) Application number: 09810300.5 (22) Date of filing: 05.08.2009

(51) International Patent Classification (IPC):  F28D 9/00(2006.01) F28F 3/08(2006.01) (86) International application number: PCT/SE2009/050919 (87) International publication number: WO 2010/024750 (04.03.2010 Gazette 2010/09)

(84) Designated Contracting States: 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 SE SI SK SM TR Designated Extension States: AL BA RS (30) Priority: 28.08.2008 SE 0801858 (71) Applicant: Airec Ab 211 24 Malmö (SE)	(72) Inventor: PERSSON, Sven S-216 14 Limhamn (SE) (74) Representative: VALEA AB  Anna Lindhs Plats 4 211 19 Malmö 211 19 Malmö (SE)