(19)

(11)

EP 4 476 450 A1

(12)

(43) Date of publication: 18.12.2024 Bulletin 2024/51 (21) Application number: 23704052.2 (22) Date of filing: 02.02.2023

(51) International Patent Classification (IPC):  F04D 25/06(2006.01) F04D 29/58(2006.01) F04D 25/16(2006.01) (52) Cooperative Patent Classification (CPC): F04D 29/5806; F04D 25/06; F04D 25/16; F04D 29/5826; F04D 29/048 (86) International application number: PCT/EP2023/025046 (87) International publication number: WO 2023/151862 (17.08.2023 Gazette 2023/33)

(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: 10.02.2022 EP 22315031 (71) Applicant: Cryostar SAS 68220 Hesingue (FR)	(72) Inventor: BRUNNER, Nicolas 68220 Hesingue (FR) (74) Representative: Reuß, Stephanie  Linde GmbH Intellectual Property EMEA Dr.-Carl-von-Linde-Straße 6-14 82049 Pullach 82049 Pullach (DE)