(19)

(11)

EP 2 076 616 A1

(12)

(43) Date of publication: 08.07.2009 Bulletin 2009/28 (21) Application number: 07803558.1 (22) Date of filing: 20.09.2007

(51) International Patent Classification (IPC):  C22C 19/05(2006.01) F01D 5/28(2006.01) (86) International application number: PCT/EP2007/059936 (87) International publication number: WO 2008/046708 (24.04.2008 Gazette 2008/17)

(84) Designated Contracting States: DE FR GB IT (30) Priority: 17.10.2006 EP 06021724 (71) Applicant: SIEMENS AKTIENGESELLSCHAFT 80333 München (DE)	(72) Inventors: HASSELQVIST, Magnus 61243 Finspong (SE) MCCOLVIN, Gordon North Hykeham Lincoln LN6 8DP (GB)