(19)

(11)

EP 3 161 174 A1

(12)

(43) Date of publication: 03.05.2017 Bulletin 2017/18 (21) Application number: 15733673.6 (22) Date of filing: 25.06.2015

(51) International Patent Classification (IPC):  C22C 19/05(2006.01) C22C 38/02(2006.01) C22C 38/06(2006.01) C22C 38/44(2006.01) C22C 38/50(2006.01) F04D 29/02(2006.01) C22C 38/00(2006.01) C22C 38/04(2006.01) C22C 38/42(2006.01) C22C 38/48(2006.01) C22C 38/52(2006.01) F04D 29/28(2006.01) (86) International application number: PCT/EP2015/064350 (87) International publication number: WO 2015/197751 (30.12.2015 Gazette 2015/52)

(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 Designated Validation States: MA (30) Priority: 27.06.2014 IT CO20140021 (71) Applicant: Nuovo Pignone S.r.l. 50127 Florence (IT)	(72) Inventors: CAPPUCCINI, Filippo I-50127 Florence (IT) ROMANELLI, Marco I-50127 Florence (IT) DI PIETRO, Domenico I-50127 Florence (IT) BUCCIONI, Massimiliano I-50127 Florence (IT) PIETRANGELI, Emanuele I-50127 Florence (IT) (74) Representative: Illingworth-Law, William Illingworth  GPO Europe GE International Inc. The Ark 201 Talgarth Road Hammersmith London W6 8BJ London W6 8BJ (GB)