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(11)

EP 3 274 587 A1

(12)

(43) Date of publication: 31.01.2018 Bulletin 2018/05 (21) Application number: 16720894.1 (22) Date of filing: 24.03.2016

(51) International Patent Classification (IPC):  F04D 1/06(2006.01) F04D 29/08(2006.01) F04D 13/08(2006.01) F04D 29/16(2006.01) (86) International application number: PCT/IB2016/051685 (87) International publication number: WO 2016/151528 (29.09.2016 Gazette 2016/39)

(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 MD (30) Priority: 25.03.2015 EP 15160856 (71) Applicant: EXA Pumps S.r.l. 22010 Gera Lario (CO) (IT)	(72) Inventor: FUMAGALLI, Fausto I-22010 Gera Lario (CO) (IT) (74) Representative: Marietti, Andrea  Marietti, Gislon e Trupiano S.r.l. Via Larga, 16 20122 Milano 20122 Milano (IT)