Assembly for storing a liquefied cryogenic fluid, vehicle and method

An assembly for storing a liquefied cryogenic fluid, for example hydrogen, the assembly comprising:

• a cryogenic tank configured to store the cryogenic fluid,
• a cryogenic fluid withdrawal line configured to withdraw the cryogenic fluid from the cryogenic tank and comprising an upstream end connected to the cryogenic tank and a downstream end configured to be connected to an engine using the cryogenic fluid, the cryogenic fluid withdrawal line comprising a heat exchanger configured to heat the withdrawn cryogenic fluid,
• a cooling device configured to cool the cryogenic fluid in the cryogenic tank, the cooling device comprising a refrigerant-cycle cryogenic refrigerator provided with a cooling heat exchanger configured to provide cooling power to the cryogenic fluid in the cryogenic tank, wherein the refrigerant-cycle cryogenic refrigerator comprising a cycle circuit comprising:
• a cycle fluid and configured to subject the cycle fluid to a thermodynamic cycle in order to produce cold power,
• a cycle-fluid compression section comprising at least one compressor,
• a cycle-fluid cooling section comprising at least one heat exchanger,
• a cycle-fluid expansion section comprising at least one turbine and/or valve, and
• a cycle-fluid heating section comprising at least one heat exchanger,
• wherein the cycle-fluid cooling section comprises heat exchange between the cycle circuit and the heating heat exchanger of the cryogenic fluid withdrawal line.