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(11)

EP 4 562 303 A1

(12)

(43) Date of publication: 04.06.2025 Bulletin 2025/23 (21) Application number: 23745191.9 (22) Date of filing: 25.07.2023

(51) International Patent Classification (IPC):  F03D 17/00(2016.01) F03D 7/04(2006.01) F03D 80/50(2016.01) (52) Cooperative Patent Classification (CPC): F05B 2260/4031; F05B 2260/83; F05B 2260/84; F03D 7/046; F03D 17/0065; F03D 17/033; F03D 80/504 (86) International application number: PCT/EP2023/070502 (87) International publication number: WO 2024/023045 (01.02.2024 Gazette 2024/05)

(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: 28.07.2022 EP 22382724 (71) Applicant: Fundación Tecnalia Research & Innovation 48160 Derio - Bizkaia (ES)	(72) Inventors: PUJANA, Ainhoa 48160 Derio - Bizkaia (ES) ESTERAS, Miguel 48160 Derio - Bizkaia (ES) PEREA, Eugenio 48160 Derio - Bizkaia (ES) MAQUEDA, Erik 48160 Derio - Bizkaia (ES) (74) Representative: Balder IP Law, S.L.  Paseo de la Castellana 93 5ª planta 28046 Madrid 28046 Madrid (ES)