The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 15, 2026
Filed:
Oct. 25, 2024
Pratt & Whitney Canada Corp., Longueuil, CA;
Charlie Molina, Brampton, CA;
Alessio Salerno, Montreal, CA;
Pratt & Whitney Canada Corp., Longueuil, CA;
Abstract
An aircraft propulsion system includes a combustor, an engine oil system, a fuel system assembly, and a control system. The engine oil system includes a fuel-oil heat exchanger. The fuel system assembly includes a jet fuel system and a hydrogen fuel system. The jet fuel system and the hydrogen fuel system are connected in fluid communication with the combustor. The control system is configured to operate the fuel system assembly in one of a first fuel mode to direct a jet fuel from the jet fuel system through the fuel-oil heat exchanger or a second fuel mode to direct a hydrogen fuel from the hydrogen fuel system through the fuel-oil heat exchanger.