(19)

(11)

EP 2 044 296 A2

(12)

(88) Date of publication A3: 13.03.2008 (43) Date of publication: 08.04.2009 Bulletin 2009/15 (21) Application number: 07787838.7 (22) Date of filing: 24.07.2007

(51) International Patent Classification (IPC):  F01D 25/30(2006.01) (86) International application number: PCT/EP2007/057595 (87) International publication number: WO 2008/012294 (31.01.2008 Gazette 2008/05)

(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: 25.07.2006 GB 0614687 (71) Applicant: SIEMENS AKTIENGESELLSCHAFT 80333 München (DE)	(72) Inventor: ROACH, Paul Lincoln Lincolnshire LN2 4RW (GB)