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(11)

EP 3 830 421 A1

(12)

(43) Date of publication: 09.06.2021 Bulletin 2021/23 (21) Application number: 19735406.1 (22) Date of filing: 13.06.2019

(51) International Patent Classification (IPC):  F04D 13/02(2006.01) F04D 29/62(2006.01) F04D 13/06(2006.01) (86) International application number: PCT/IB2019/054945 (87) International publication number: WO 2020/026044 (06.02.2020 Gazette 2020/06)

(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: KH MA MD TN (30) Priority: 03.08.2018 IT 201800007845 (71) Applicant: Industrie Saleri Italo S.P.A. 25065 Lumezzane, Brescia (IT)	(72) Inventor: TEBALDINI, Giovanni 25065 Lumezzane, Brescia (IT) (74) Representative: Gamba, Alessandro  Jacobacci & Partners S.p.A. Piazza della Vittoria, 11 25122 Brescia 25122 Brescia (IT)