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(11)

EP 2 504 582 A1

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(43) Date of publication: 03.10.2012 Bulletin 2012/40 (21) Application number: 10779776.3 (22) Date of filing: 15.11.2010

(51) International Patent Classification (IPC):  F04D 29/12(2006.01) F16J 15/34(2006.01) F01D 11/06(2006.01) (86) International application number: PCT/EP2010/067456 (87) International publication number: WO 2011/061142 (26.05.2011 Gazette 2011/21)

(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: 23.11.2009 IT CO20090051 (71) Applicant: Nuovo Pignone S.p.A. 50127 Florence (IT)	(72) Inventors: MEUCCI, Stefano I-50127 Florence (IT) SUSINI, Paolo I-50127 Florence (IT) (74) Representative: Illingworth-Law, William Illingworth  GE International Inc. Global Patent Operation - Europe 15 John Adam Street London WC2N 6LU London WC2N 6LU (GB)