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EP 4 569 224 A1

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(43) Date of publication: 18.06.2025 Bulletin 2025/25 (21) Application number: 23851878.1 (22) Date of filing: 09.08.2023

(51) International Patent Classification (IPC):  F04B 39/12(2006.01) F04B 39/00(2006.01) F04B 39/06(2006.01) F04B 39/14(2006.01) (52) Cooperative Patent Classification (CPC): F04B 39/14; F04B 39/06; F04B 39/00; F04B 39/121 (86) International application number: PCT/CN2023/111993 (87) International publication number: WO 2024/032657 (15.02.2024 Gazette 2024/07)

(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: KH MA MD TN (30) Priority: 09.08.2022 CN 202222086905 U (71) Applicant: Knorr-Bremse Braking Systems For Commercial Vehicles (Dalian) Co., Ltd. 116620 Dalian (CN)	(72) Inventors: HEBRARD, Gilles 80809 Muenchen (DE) VERON, Frederic 14130 Fierville - Les Parcs (FR) MARESCOT, Jean-Baptiste 80809 Muenchen (DE) (74) Representative: DTS Patent- und Rechtsanwälte PartmbB  Brienner Straße 1 80333 München 80333 München (DE)