(19)

(11)

EP 4 798 833 A1

(12)

(43) Date of publication: 02.09.2026 Bulletin 2026/36 (21) Application number: 23798427.3 (22) Date of filing: 26.10.2023

(51) International Patent Classification (IPC):  F01K 23/02(2006.01) F01K 25/10(2006.01) F01K 25/02(2006.01) (52) Cooperative Patent Classification (CPC): F01K 25/103; F01K 23/02; F01K 25/02 (86) International application number: PCT/EP2023/079965 (87) International publication number: WO 2025/087533 (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: KH MA MD TN (71) Applicant: Allto Energy AS 4021 Stavanger (NO)	(72) Inventor: MELHUS, Trond 4329 Sandnes (NO) (74) Representative: Kransell & Wennborg KB  P.O. Box 27834 115 93 Stockholm 115 93 Stockholm (SE)