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EP 2 494 210 A1

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(43) Date of publication: 05.09.2012 Bulletin 2012/36 (21) Application number: 10771600.3 (22) Date of filing: 12.10.2010

(51) International Patent Classification (IPC):  F04D 29/02(2006.01) F04D 29/44(2006.01) F04D 29/16(2006.01) F01D 11/12(2006.01) (86) International application number: PCT/US2010/052232 (87) International publication number: WO 2011/053448 (05.05.2011 Gazette 2011/18)

(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: 30.10.2009 IT CO20090045 (71) Applicant: Nuovo Pignone S.p.A. 50127 Florence (IT)

(72) Inventors: GIOVANNETTI, Lacopo I-50127 Florence (IT) MICHELASSI, Vittorio 85748 Garching Bei Muenchen (DE) GIANNOZZI, Massimo I-50127 Florence (IT) GHASRIPOOR, Farshad Niskayuna, NY 12309 (US) GRAY, Dennis, M. Niskayuna, NY 12309 (US) SHENG, Nuo Niskayuna, NY 12309 (US) (74) Representative: Illingworth-Law, William Illingworth  GE International Inc. Global Patent Operation - Europe 15 John Adam Street London WC2N 6LU London WC2N 6LU (GB)