(19)

(11)

EP 2 864 593 A1

(12)

(43) Date of publication: 29.04.2015 Bulletin 2015/18 (21) Application number: 13730166.9 (22) Date of filing: 12.06.2013

(51) International Patent Classification (IPC):  F01D 5/08(2006.01) F01D 11/00(2006.01) F01D 5/30(2006.01) (86) International application number: PCT/EP2013/062115 (87) International publication number: WO 2014/001084 (03.01.2014 Gazette 2014/01)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME (30) Priority: 26.06.2012 EP 12173650 (71) Applicant: Siemens Aktiengesellschaft 80333 München (DE)	(72) Inventor: HEADLAND, Paul Lincoln LN1 1NA (GB) (74) Representative: Maier, Daniel Oliver  Siemens AG Postfach 22 16 34 80506 München 80506 München (DE)