(19)

(11)

EP 2 064 507 A1

(12)

(43) Date of publication: 03.06.2009 Bulletin 2009/23 (21) Application number: 07820275.1 (22) Date of filing: 18.09.2007

(51) International Patent Classification (IPC):  F28D 9/00(2006.01) F28F 9/007(2006.01) (86) International application number: PCT/EP2007/059809 (87) International publication number: WO 2008/034812 (27.03.2008 Gazette 2008/13)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR Designated Extension States: AL BA HR MK RS (30) Priority: 22.09.2006 SE 0601973 (71) Applicant: Alfa Laval Corporate AB 221 00 Lund (SE)	(72) Inventors: BJÖRNSSON, Peter 227 31 Lund (SE) GUDMUNDSSON, Thord 211 48 Malmö (SE) (74) Representative: Berglund, Stefan  Bjerkéns Patentbyra KB Östermalmsgatan 58 114 50 Stockholm 114 50 Stockholm (SE)