(19)

(11)

EP 4 413 265 A1

(12)

(43) Date of publication: 14.08.2024 Bulletin 2024/33 (21) Application number: 21791296.3 (22) Date of filing: 08.10.2021

(51) International Patent Classification (IPC):  F04D 13/06(2006.01) F04D 29/42(2006.01) (52) Cooperative Patent Classification (CPC): F04D 13/0606; F04D 29/426 (86) International application number: PCT/EP2021/077893 (87) International publication number: WO 2023/057074 (13.04.2023 Gazette 2023/15)

(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 (71) Applicant: Pierburg Pump Technology GmbH 41460 Neuss (DE)	(72) Inventor: SUSWEDYK, Martin 41460 Neuss (DE) (74) Representative: terpatent PartGmbB  Partnerschaftsgesellschaft mbB Burgunderstraße 29 40549 Düsseldorf 40549 Düsseldorf (DE)