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EP 4 771 258 A1

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(43) Date of publication: 08.07.2026 Bulletin 2026/28 (21) Application number: 23950992.0 (22) Date of filing: 30.08.2023

(51) International Patent Classification (IPC):  F01K 25/10(2006.01) F02B 43/10(2006.01) F17C 13/12(2006.01) F02M 21/02(2006.01) F17C 13/00(2006.01) (52) Cooperative Patent Classification (CPC): F02B 43/10; F01K 25/10; F17C 9/04; F17C 2221/012; F17C 2223/0161; F17C 2223/033; F17C 2225/0123; F17C 2225/035; F17C 2225/036; F17C 2227/0135; F17C 2227/0309; F17C 2227/0393; F17C 2260/046; F17C 2265/07; F17C 2270/0139; F17C 2270/0581; F02M 21/0221; F02M 21/06 (86) International application number: PCT/US2023/031474 (87) International publication number: WO 2025/048793 (06.03.2025 Gazette 2025/10)

(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: Air Products and Chemicals, Inc. Allentown, PA 18106-5500 (US)

(72) Inventors: HOFFMAN, Steven W. Lafayette, California 94549 (US) SCHMIDT, Thomas S. Slatington, Pennsylvania 18080 (US) COHEN, Joseph P. Bethlehem, Pennsylvania 18017 (US) SANE, Anup Vasant Allentown, Pennsylvania 18104 (US) CACCIAPALLE, Michael Plymouth Meeting, Pennsylvania 19462 (US) FARESE, David John Riegelsville, Pennsylvania 18077 (US) JONAS, Gordon Schwenksville, Pennsylvania 19473 (US) (74) Representative: SSM Sandmair  Patentanwälte Rechtsanwalt Partnerschaft mbB Joseph-Wild-Straße 20 81829 München 81829 München (DE)