Abstract: An operating method is provided for a cryo-compressed tank for supplying cryogenic hydrogen to a consumer of a motor vehicle under supercritical pressure at 13 bar or more. In order to compensate for pressure loss resulting from hydrogen removal, the removed hydrogen that has been heated in a heat exchanger is conveyed to a heat exchanger, provided in the cryo-compressed tank, by way of a tank pressure regulating valve and a branch line, which branches off of a supply line leading to the consumer. After flowing through the heat exchanger, it is introduced into the supply line downstream of the branching off of the branch line. Over a period of time that significantly exceeds the cycle times of a conventional frequency valve, either the removed amount of hydrogen is guided without limitation into the heat exchanger, provided in the cryo-compressed tank, the tank pressure regulating valve being completely open, or no return of the heated hydrogen into the heat exchanger occurs at all.

Abstract: A composite compressed gas tank has an outer shell and a liner. The liner is made of a light metal, in particular, aluminum or an aluminum alloy. The gas tank has an in-feed and discharge port, in which is inserted a closing element having at least one channel. The closing element is connected directly or indirectly to the liner by a welded joint, and a steel material connecting line is connected to the channel or channels. A transition element has a first end segment made of a light metal, in particular aluminum or an aluminum alloy, and is welded either to the liner or to the closing element if made of a light metal. The other end segment of the transition element is made of a steel material and is welded either to the closing element, or to the connecting line if made of a steel material.

Abstract: A composite compressed gas tank intended for a gas has an outer shell and a liner. The liner is enveloped by the outer shell and is made of a light metal, in particular, aluminum or an aluminum alloy. The gas tank has an in-feed and discharge port, in which is inserted a closing element that has at least one channel for infeeding and/or discharging gas and that is connected directly or indirectly to the liner by a welded joint, and a connecting line made of a steel material is connected to the channel or channels of the closing element. A transition element is provided, of which a first end segment is made of a light metal, in particular aluminum or an aluminum alloy, and is welded either to the liner or to the closing element, which is made of a light metal, in particular aluminum or an aluminum alloy; and the other end segment of this transition element is made of a steel material.

Abstract: An operating method is provided for a cryo-compressed tank for supplying cryogenic hydrogen to a consumer of a motor vehicle under supercritical pressure at 13 bar or more. In order to compensate for pressure loss resulting from hydrogen removal, the removed hydrogen that has been heated in a heat exchanger is conveyed to a heat exchanger, provided in the cryo-compressed tank, by way of a tank pressure regulating valve and a branch line, which branches off of a supply line leading to the consumer. After flowing through the heat exchanger, it is introduced into the supply line downstream of the branching off of the branch line. Over a period of time that significantly exceeds the cycle times of a conventional frequency valve, either the removed amount of hydrogen is guided without limitation into the heat exchanger, provided in the cryo-compressed tank, the tank pressure regulating valve being completely open, or no return of the heated hydrogen into the heat exchanger occurs at all.