(19)

(11)

EP 0 830 555 A1

(12)

(43) Date of publication: 25.03.1998 Bulletin 1998/13 (21) Application number: 96917770.0 (22) Date of filing: 31.05.1996

(51) International Patent Classification (IPC):  F28D 19/ 04( . ) (86) International application number: PCT/SE1996/000713 (87) International publication number: WO 1996/041996 (27.12.1996 Gazette 1997/04)

(84) Designated Contracting States: AT CH DE ES FR GB GR IE IT LI PT SE (30) Priority: 08.06.1995 SE 19950002100 (71) Applicant: Ljungström Technology AB 104 65 Stockholm (SE)	(72) Inventors: KARLSSON, Kurt S-135 55 Tyresö (SE) WESTERLUND, Dag S-175 73 Järfälla (SE) (74) Representative: Wiedemann, Bernd  Svenska Rotor Maskiner AB, P.O. Box 15085 104 65 Stockholm 104 65 Stockholm (SE)