(19)

(11)

EP 1 432 894 A1

(12)

(43) Date of publication: 30.06.2004 Bulletin 2004/27 (21) Application number: 01940599.2 (22) Date of filing: 05.06.2001

(51) International Patent Classification (IPC)7: F02C 7/052, B03C 3/06, B03C 3/41 (86) International application number: PCT/FI2001/000532 (87) International publication number: WO 2003/002861 (09.01.2003 Gazette 2003/02)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (71) Applicant: Fortum OYJ 02150 Espoo (FI)	(72) Inventor: RÖNNBERG, Jan FIN-02400 Kirkkonummi (FI) (74) Representative: Valkeiskangas, Tapio Lassi Paavali  Oy Kolster Ab,Iso Roobertinkatu 23,P.O. Box 148 00121 Helsinki 00121 Helsinki (FI)