(19)

(11)

EP 4 291 769 A1

(12)

(43) Date of publication: 20.12.2023 Bulletin 2023/51 (21) Application number: 22704371.8 (22) Date of filing: 08.02.2022

(51) International Patent Classification (IPC):  F03B 17/06(2006.01) F03D 7/06(2006.01) F03D 5/06(2006.01) F15D 1/12(2006.01) (52) Cooperative Patent Classification (CPC): F03D 5/06; F03B 17/062; F03D 7/06; F05B 2210/16; F05B 2240/122; F05B 2240/201 (86) International application number: PCT/EP2022/052943 (87) International publication number: WO 2022/171591 (18.08.2022 Gazette 2022/33)

(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 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 (30) Priority: 10.02.2021 SE 2150144 (71) Applicant: The University of Stavanger 4036 Stavanger (NO)	(72) Inventors: ONG, Muk Chen 4021 Stavanger (NO) JANOCHA, Marek Jan 4314 Sandnes (NO) (74) Representative: Brann AB  P.O. Box 3690 Sveavägen 63 103 59 Stockholm 103 59 Stockholm (SE)