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. Downstream of the branching off of the branch line, the supply line has a pressure regulating unit, which ensures that irrespective of the changes in the pressure in the supply line caused upstream of the pressure regulating unit by switching the tank pressure regulating valve, a sufficient and continuous supply of hydrogen to the consumer at the pressure required is guaranteed.

A pressure vessel, in particular a cryogenic pressure vessel, has an inner vessel, an outer vessel and a chamber that can be evacuated at least partly. A motor vehicle includes such a pressure vessel.

An apparatus includes a Dewar having an endcap. The apparatus also includes a heat sink and a multiaxial thermal shoe having a thermal interface material and configured to thermally couple the endcap of the Dewar to the heat sink via one of at least two axial surfaces. The multiaxial thermal shoe is configured to transfer thermal energy between the endcap of the Dewar and the heat sink without structurally coupling the Dewar to the heat sink. The multiaxial thermal shoe may be configured to hold the thermal interface material against the endcap. The multiaxial thermal shoe may couple to the heat sink via a first axial surface in-line with an optical centerline or a second axial surface crosswise to the optical centerline.

Apparatus and method of storing useful gas comprising respective sources of a gas and a liquid. a sealed storage container. gas inlet and outlet means of the storage container, liquid inlet and outlet means of the storage container, and control means including a pressure monitoring device to maintain a substantially constant pressure in the storage container by control of the amount of the gas and liquid being transferred to and withdrawn from the storage container by way of the respective inlet and outlet means, wherein the gas and the liquid are immiscible so that the gas fills a space in the storage container over the liquid surface.

A tank arrangement includes a tank for liquid hydrogen, a boil-off management system having a catalyst, and a heater arranged on the hydrogen side behind a first pressure relief valve and thermally connected to the catalyst. The first pressure relief valve is configured to open when a specified first pressure is exceeded. The heater is designed as a passive metal hydride heater containing a metal hydride. A second pressure relief valve is arranged between the first pressure relief valve and the catalyst. The second pressure relief valve is configured to open when a specified second pressure, which is higher than the first pressure, is exceeded.