(19)

(11)

EP 2 307 842 A1

(12)

(43) Date of publication: 13.04.2011 Bulletin 2011/15 (21) Application number: 09762768.1 (22) Date of filing: 12.06.2009

(51) International Patent Classification (IPC):  F28D 9/00(2006.01) F28F 3/08(2006.01) (86) International application number: PCT/SE2009/050740 (87) International publication number: WO 2009/151399 (17.12.2009 Gazette 2009/51)

(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 TR Designated Extension States: AL BA RS (30) Priority: 13.06.2008 SE 0801394 (71) Applicant: Alfa Laval Corporate AB 221 00 Lund (SE)	(72) Inventors: Zorzin, Alvaro I-34076 Romans d'Isonzo (GO) (IT) Hallgren, Leif S-236 42 Höllviken (SE) Muzzolon, Angelo I-37044 Cologna Veneta (VR) (IT) Pavan, Marcello I-36045 Lonigo (VI) (IT) Biancon, Emanuele I-37047 San Bonifaciop (VR) (IT)