(19)

(11)

EP 2 598 751 A2

(12)

(88) Date of publication A3: 11.04.2013 (43) Date of publication: 05.06.2013 Bulletin 2013/23 (21) Application number: 11757299.0 (22) Date of filing: 14.09.2011

(51) International Patent Classification (IPC):  F03D 11/00(2006.01) E04H 12/08(2006.01) F03D 11/04(2006.01) F16L 23/08(2006.01) (86) International application number: PCT/EP2011/065901 (87) International publication number: WO 2012/038309 (29.03.2012 Gazette 2012/13)

(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 (30) Priority: 21.09.2010 EP 10177980 (71) Applicant: Siemens Aktiengesellschaft 80333 München (DE)	(72) Inventors: OESTERGAARD, Thomas DK-6000 Kolding (DK) SKJAERBAEK, Poul DK-6920 Videbaek (DK) STIESDAL, Henrik DK-5000 Odense C (DK)