(19)

(11)

EP 0 143 838 A1

(12)

(43) Date of publication: 12.06.1985 Bulletin 1985/24 (21) Application number: 84902221.0 (22) Date of filing: 07.05.1984

(51) International Patent Classification (IPC):  F28F 3/ 10( . ) (86) International application number: PCT/SE1984/000171 (87) International publication number: WO 1984/004809 (06.12.1984 Gazette 1984/28)

(84) Designated Contracting States: AT BE CH DE FR GB LI LU NL SE (30) Priority: 20.05.1983 SE 19830002861 (71) Applicant: ALFA-LAVAL THERMAL AB S-221 01 Lund (SE)	(72) Inventors: ANDERSSON, Jarl, Anders S-222 51 Lund (SE) BERGQVIST, Jan-Ove S-217 65 Malmö (SE) (74) Representative: Lerwill, John, et al  A.A. Thornton & Co. Northumberland House 303-306 High Holborn London, WC1V 7LE London, WC1V 7LE (GB)