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(11)

EP 4 771 282 A1

(12)

(43) Date of publication: 08.07.2026 Bulletin 2026/28 (21) Application number: 24834889.8 (22) Date of filing: 20.11.2024

(51) International Patent Classification (IPC):  F04D 15/00(2006.01) F04B 51/00(2006.01) (52) Cooperative Patent Classification (CPC): F04D 15/0088; F04B 51/00; F04B 49/065; F04B 49/20; F04B 17/03; F04B 2205/09; F04B 2205/04; F04B 2201/0802; F04B 2201/0801; F04B 2203/0208; F04B 2203/0408 (86) International application number: PCT/IT2024/050239 (87) International publication number: WO 2025/109639 (30.05.2025 Gazette 2025/22)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: GE KH MA MD TN (30) Priority: 22.11.2023 IT 202300024801 (71) Applicant: Caprari S.p.A. 41123 Modena (IT)	(72) Inventor: FREZZA, Giacomo 41123 MODENA (IT) (74) Representative: Manzella & Associati  Via dell'Indipendenza, 13 40121 Bologna 40121 Bologna (IT)