Cryogenic tank device with heat exchanger

A cryogenic tank apparatus, comprising:

• an inner container for holding a cryogenic medium;
• an outer housing surrounding the inner container;
• an insulation space disposed between the inner container and the outer housing;
• and
• at least one heat exchanger including:
• at least one cold flow line through which flows the cryogenic medium held in the inner container, and
• at least one hot flow line through which flows a temperature control medium, the at least one hot flow line being arranged adjacent to the at least one cold flow line along a heat transfer surface in such a manner that a transfer of heat takes place between the temperature control medium and the cryogenic medium via the heat transfer surface,
• wherein the at least one cold flow line is arranged on an inner side of the outer housing and the at least one hot flow line is arranged on an outer side of the outer housing so that a portion of the outer housing acts as a heat transfer surface of the heat exchanger.