Fluid supply and storage device, vehicle and method including such a device

A fluid supply and storage device, comprising:

• a cryogenic tank configured to store liquefied fluid of a double-wall and vacuum-insulated type comprising an inner jacket delimiting a storage volume of the liquefied fluid and an outer jacket disposed around said inner jacket with a vacuum thermal insulation gap between said inner and outer jackets;
• and
• a withdrawal circuit comprising an assembly of one or more valves and a withdrawal line that comprises a first, upstream end connected to an upper part of said inner jacket and a second, downstream end configured to connect to a user member, said withdrawal line comprising a first heat exchanger located outside said inner jacket and a second heat exchanger located inside said inner jacket:
• a bypass line that fluidly connects the assembly of one or more valves with the second, downstream end, wherein:
• said assembly of one or more valves is configured to ensure passage of a flow of fluid circulating from said first, upstream end to said second, downstream end by switching between a first flow path in which the flow of fluid enters said first heat exchanger and then the flow of fluid enters said second heat exchanger and a second flow path in which the flow of fluid enters said first heat exchanger and the bypass line without entering said second heat exchanger;
• and
• an inlet of said first heat exchanger receiving the flow of fluid coming from said first, upstream end is located in said vacuum thermal insulation gap.