Cryogenic fluid storage unit and corresponding production method

A cryogenic fluid storage unit comprising:

• an internal tank, internally delimiting a volume for receiving cryogenic fluid, the internal tank having a proximal end and a distal end opposite the proximal end;
• an external tank, in which the internal tank is housed;
• a suspension, including a proximal suspension connecting the proximal end of the internal tank to the external tank, the proximal suspension including an external tube rigidly attached to the proximal end of the internal tank, an internal tube arranged in the external tube and connected to the external tank, and a stopper connecting the internal tube to the external tube;
• and
• the proximal suspension including a proximal thermal insulation interposed radially between the external tube and the internal tube, the proximal thermal insulation comprising a thermally insulating sleeve and at least one blocking element having a central axis and resiliently biasing the thermally insulating sleeve against an internal surface of the external tube or against an external surface of the internal tube.