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(11)

EP 3 105 454 A1

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(43) Date of publication: 21.12.2016 Bulletin 2016/51 (21) Application number: 15703618.7 (22) Date of filing: 11.02.2015

(51) International Patent Classification (IPC):  F04B 27/053(2006.01) F04B 39/12(2006.01) F04B 27/04(2006.01) F04B 39/00(2006.01) (86) International application number: PCT/EP2015/052886 (87) International publication number: WO 2015/121310 (20.08.2015 Gazette 2015/33)

(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: 12.02.2014 IT CO20140003 (71) Applicant: Nuovo Pignone S.r.l. 50127 Florence (IT)	(72) Inventors: SORGONA', Federico I-50127 Florence (IT) TENZE, Andrea I-50127 Florence (IT) GALLINA, Elena I-50127 Florence (IT) D'URSO, Fulvio I-50127 Florence (IT) (74) Representative: Lee, Brenda  GE International Inc. Global Patent Operation - Europe The Ark 201 Talgarth Road Hammersmith London W6 8BJ London W6 8BJ (GB)