Abstract: The invention relates to a device for generating and storing carbon dioxid snow, comprising a container into which an expansion nozzle connected to a supply line for liquid carbon dioxide and a gas extraction line open, a removal device for removing carbon dioxide snow out of the container, and a measuring device for detecting the fill level of the carbon dioxide snow in the container. According to the invention, the measuring device comprises a photoelectric sensor unit which is arranged at a vertical distance to the base of the container and which comprises a light-emitting transmitter and a light-sensitive receiver.

Abstract: In a tank filling process for filling a refrigerant tank of a vehicle with a cryogenic refrigerant, firstly a liquefied cryogenic refrigerant stored at a pressure p1 in a storage tank is supplied to a conditioning vessel, subsequently the flow connection between storage tank and conditioning vessel is interrupted, and the pressure in the conditioning vessel is increased, for example by virtue of a flow connection to a pressure build-up vessel being produced, to a pressure p2, wherein p2>p1, whereby the liquefied refrigerant is present in the conditioning vessel in the supercooled state. Subsequently, the supercooled, liquefied refrigerant is supplied to the tank to be filled. By means of the device according to the invention and the process according to the invention, evaporation losses during the filling process can be substantially avoided.

Abstract: In a tank filling process for filling a refrigerant tank of a vehicle with a cryogenic refrigerant, firstly a liquefied cryogenic refrigerant stored at a pressure p1 in a storage tank is supplied to a conditioning vessel, subsequently the flow connection between storage tank and conditioning vessel is interrupted, and the pressure in the conditioning vessel is increased, for example by virtue of a flow connection to a pressure build-up vessel being produced, to a pressure p2, wherein p2>p1, whereby the liquefied refrigerant is present in the conditioning vessel in the supercooled state. Subsequently, the supercooled, liquefied refrigerant is supplied to the tank to be filled. By means of the device according to the invention and the process according to the invention, evaporation losses during the filling process can be substantially avoided.

Abstract: The invention relates to a coupling for cryogenic liquefied media, said coupling comprising a coupling socket (10) and a coupling connector (30), which can be connected thereto, each being equipped with a non-return valve (15, 40). According to the invention, the coupling socket (10) comprises a front section (11), having means for connecting to the coupling connector (30), and a rear section (12), having the non-return valve (15). According to the invention, the front section (11) is connected to the rear section (12) by means of screws (33) having predetermined breaking points, which break upon exceeding a specified tensile stress. According to the invention, the sections (11, 12) separate from each other and the non-return valves (15, 40) automatically move to the closed position.

Abstract: A method and device for filling a container with liquid gas from a storage tank includes removing the liquefied gas from the storage tank and feeding it to a container via a liquid feed line through use of a delivery system. The gas is compressed in the container and is removed from the container in its gaseous state and is at least partially liquefied by cooling in a heat exchanger. The at least partially liquefied gas is fed into the liquid feed line at the suction end of the delivery device.