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This invention describes an aircraft propulsion system that combines a gas turbine engine with a way to use hydrogen fuel. Exhaust heat from the gas turbine is used to prepare gaseous hydrogen, which is then fed directly into the gas turbine's combustor to power the engine. The claims specifically describe this direct combustion of hydrogen, potentially after it passes through a separate hydrogen turbine.
Why it matters: Filed before advanced computational fluid dynamics (CFD) models for hydrogen combustion in gas turbines were widely accessible, which could now accelerate design and optimization of such complex systems.
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