Hydrogen fuel system for an aircraft

A hydrogen fuel system for an aircraft, the hydrogen fuel system comprising:

• a housing defining a volume that is at least partially enclosed;
• a hydrogen fuel component having a hydrogen fuel passage for hydrogen fuel to flow therethrough, the hydrogen fuel component being located within the volume of the housing;
• and
• a hydrogen storage structure including a hydrogen storage material having a morphology for retaining hydrogen within the hydrogen storage material,
• wherein a hydrogen leak path is defined within the volume of the housing, a hydrogen accumulation region is defined within the volume of the housing, or both the hydrogen leak path and the hydrogen accumulation region is defined within the volume of the housing, the hydrogen storage structure is located within the volume of the housing in at least one of the hydrogen leak path or in the hydrogen accumulation region,
• wherein the hydrogen storage material is a reversable hydrogen storage material that stores hydrogen and releases hydrogen, the reversable hydrogen storage material having a desorption temperature, and
• wherein the reversable hydrogen storage material is a cryogenic hydrogen storage material that adsorbs hydrogen at temperatures at or below negative three hundred degrees Fahrenheit and that has a desorption temperature from negative two hundred degrees Fahrenheit to zero degrees Fahrenheit.

A gas turbine engine for an aircraft, the gas turbine engine comprising:

• a hydrogen fuel system comprising:
• a housing defining a volume that is at least partially enclosed;
• a hydrogen fuel component having a hydrogen fuel passage for hydrogen fuel to flow therethrough, the hydrogen fuel component being located within the volume of the housing;
• and
• a hydrogen storage structure including a hydrogen storage material having a morphology for retaining hydrogen within the hydrogen storage material,
• wherein a hydrogen leak path is defined within the volume of the housing, a hydrogen accumulation region is defined within the volume of the housing, or both the hydrogen leak path and the hydrogen accumulation region is defined within the volume of the housing, the hydrogen storage structure is located within the volume of the housing in at least one of the hydrogen leak path or in the hydrogen accumulation region;
• a turbo-engine comprising:
• a compressor section including one or more compressors to generate compressed air;
• a combustor located downstream of the compressor section to receive the compressed air, the combustor including a combustion chamber and a fuel nozzle fluidly coupled to the hydrogen fuel system to receive the hydrogen fuel from the hydrogen fuel system and to inject the hydrogen fuel into the combustion chamber, generating a fuel and air mixture, the fuel and air mixture being combusted in the combustion chamber to generate combustion products;
• and
• a turbine section located downstream of the combustor to receive the combustion products, the turbine section including one or more turbines to be rotated by the combustion products;
• and
• an outer casing enclosing the turbo-engine and having a turbo-engine compartment, the volume being at least a portion of the turbo-engine compartment, and the housing being at least a portion of the outer casing.