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:
Apr. 14, 2026
Filed:
Dec. 17, 2024
Rolls-royce Plc, London, GB;
Marko Bacic, Derby, GB;
Rory D. Stieger, Derby, GB;
Mark D. Taylor, Derby, GB;
Chloe J. Palmer, Derby, GB;
Kenneth J. Young, Derby, GB;
Rolls-Royce PLC, London, GB;
Abstract
A fuel system for a gas turbine engine configured to combust hydrogen fuel is disclosed. The fuel system comprises a main fuel conduit and a fuel pump configured to operate on liquid hydrogen within the fuel conduit to provide pressurised fuel to a combustor of the gas turbine engine. A fuel metering unit is configured to control fuel flow delivered to the combustor. The fuel pump is configured to provide hydrogen at an outlet above a critical temperature and pressure, to thereby provide supercritical hydrogen fuel downstream. The fuel metering unit is configured to provide a variable flow area downstream of the pump, to deliver fuel at required flow parameters.