(19)

(11)

EP 4 798 835 A1

(12)

(43) Date of publication: 02.09.2026 Bulletin 2026/36 (21) Application number: 24793840.0 (22) Date of filing: 24.10.2024

(51) International Patent Classification (IPC):  F02B 23/06(2006.01) F02M 61/14(2006.01) F02M 43/04(2006.01) (52) Cooperative Patent Classification (CPC): F02M 43/04; F02M 61/14; F02B 23/0645; F02B 2275/14 (86) International application number: PCT/EP2024/080029 (87) International publication number: WO 2025/088013 (01.05.2025 Gazette 2025/18)

(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: 26.10.2023 FR 2311637 (71) Applicant: RH2 SAS 89000 Auxerre (FR)	(72) Inventor: BOUVY, Jacques 6700 Udange (BE) (74) Representative: Office Freylinger  P.O. Box 48 8001 Strassen 8001 Strassen (LU)