Device and method for storing and supplying fluid

A device for storing and supplying fluid, notably an on-board device for storing hydrogen and supplying the hydrogen to a consumer, the device comprising:

• a cryogenic tank configured to store liquefied fluid;
• a withdrawal circuit comprising a first withdrawal line having an upstream first end connected to the interior of the tank and a downstream second end configured to be connected to a consumer, the first withdrawal line comprising a first heating heat exchanger located outside the tank, the withdrawal circuit comprising a set of one or more valves that is configured to allow or to not allow a withdrawal of a flow of fluid from the first end to the second end;
• and
• an electronic control member configured to adjust at least some of the set of valves to open/close,
• wherein, when the set of valves is configured to not allow withdrawal of fluid toward the downstream second end, the electronic control member is configured to switch the set of valves to at least two distinct states:
• in a first state, at least a portion of the internal volume of the first heating heat exchanger is fluidically isolated from at least a portion of the rest of the withdrawal circuit to enable a spontaneous pressure wave in the withdrawal circuit so as to pressurize the fluid in the tank;
• and
• in a second state, at least a portion of the volume of the heating heat exchanger fluidically communicates with at least a portion of the rest of the withdrawal circuit to damp such a pressure wave in the circuit.