A liquefied gas storage tank according to an embodiment of the present invention may comprise: a tank unit in which liquefied gas is stored; an inner box unit disposed inside the tank unit and installed at the bottom portion of the tank unit; and a pump unit that has an inlet pipe part formed to pass through a lower wall portion of the inner box unit and communicate with the inside of the inner box unit, and suctions the liquefied gas stored in the tank unit through the inlet pipe part, thereby supplying the liquefied gas to the outside.

A method for extracting a liquid phase of a cryogen comprising the liquid phase and a vapour phase from an interior volume of a storage dewar through an extraction means, utilizing a push gas introduced into the vapour phase of the cryogen through an outlet of a supply line provided between a push gas supply and the interior volume of the storage dewar, the supply line partially extending through the liquid phase within the interior volume.

A low temperature fluid dual structure pipe includes: an inner pipe through which a low temperature fluid flows; and an outer pipe externally fitted to the inner pipe with a sealed tubular space therebetween. An inactive gas having a melting point and a boiling point each of which is equal to or higher than a temperature of the low temperature fluid is filled in the tubular space between the inner pipe and the outer pipe. When the low temperature fluid flows through the inner pipe, the inactive gas is liquefied or solidified, and therefore, at least one of a liquefied inactive gas layer and a solidified inactive gas layer is formed on an outer peripheral surface of the inner pipe. As a result, a pseudo vacuum layer that is in a substantially vacuum state is formed in the tubular space.

The invention relates to a pipe penetration module (7) for a cryogenic container (1), which comprises an inner tank (2) and an outer container (3) vacuum-insulated relative to said inner tank, the pipe penetration module (7) comprising a cladding pipe (6) and a pipeline (5) at least partially accommodated in the cladding pipe (6), wherein the pipeline (5) passes with a first pipeline end (10) through a first cladding pipe end (8) of the cladding pipe (6) so that the first pipeline end (10) can be rigidly connected to the outer container (3) and the first cladding pipe end (8) can be rigidly connected to the inner tank (2), the pipeline (5) and the cladding pipe (6) being rigidly connected to one another at a second cladding pipe end (13), and with the pipeline (5) and the cladding pipe (6) each having a kink (17, 18) in an area between the first cladding pipe end (8) and the second cladding pipe end (13).

An aircraft is disclosed including a fuel tank for storing liquid hydrogen, an aircraft power plant and/or an aircraft refuelling port, and a hydrogen fuel line extending from a first end to a second end, the first end at the fuel tank and the second end at one of the aircraft power plant and the aircraft refuelling port. The hydrogen fuel line is rigidly continuous and substantially unconstrained along an axial direction of the hydrogen fuel line between the first end and the second end. The first and/or second end is moveable in the axial direction of the hydrogen fuel line.

A device for fueling motor vehicles with a fluid used as a fuel and composed of liquefied gas, in particular liquefied natural gas, includes: at least one storage container; a cooling device; at least one conveying device for feeding the fluid from the at least one storage container to at least one fueling device for motor vehicles; and at least one line for supplying the fluid to the fueling device. The at least one line includes a media-conveying central pipeline as a medium pipe and at least one additional media-conveying pipeline that is arranged concentrically with respect to the central pipeline and defines an annular space together with the media-conveying central pipeline. The media-conveying central pipeline and the at least one annular space supply and return the fluid or a gas flow. The at least one additional media-conveying pipeline is surrounded by a jacket pipe.

A system for circulating air through double pipes for supplying gas, includes double pipes connected to a gas handling device and supplied with gas; a gas supply unit for supplying gas to the gas handling device through an inner pipe of the double pipes; an air supply unit for supplying air through an outer pipe of the double pipes; and an air suctioning means for suctioning and circulating the air, which is supplied to the outer pipe by the air supply unit, by the introduction of a high pressure fluid. Rather than circulating air through the outer pipe of the double pipes by a fan, air can be circulated through the double pipes for gas supply by a simpler structure and more effective configuration.

A liquid storage container comprises: a first lid; a container body having an opening on one end, an interior of the container body and the lid forming a chamber. The opening end of the first lid and the opening end of the container body are rotatably and sealingly connected; and a first pipe and a second pipe communicating the chamber with the outside. The first pipe is provided on the first lid. The second pipe is provided on the container body.

A device for transferring liquid helium into a usage helium tank of a usage cryostat includes a reservoir cryostat with a vacuum-insulated reservoir helium tank configured to store liquid helium available for filling the usage helium tank, a supply line for liquid helium, and a gaseous helium return line. The supply line proceeds from the vacuum-insulated reservoir helium tank and is connected to the usage helium tank. The gaseous helium return line leads into the vacuum-insulated reservoir helium tank and is connected to the usage helium tank. The device further includes a conveying device configured to convey liquid helium from the vacuum-insulated reservoir helium tank through the supply line into the usage helium tank and further configured to convey gaseous helium from the usage helium tank through the return line into the vacuum-insulated reservoir helium tank.

Heat is transferred from a first portion of liquid hydrogen to a flow of a heat transfer fluid at a first heat exchanger through heat exchange with a heat transfer fluid to produce a flow of vaporized hydrogen and a warmed flow of heat transfer fluid. The flow of vaporized hydrogen is combined with a second portion of liquid hydrogen in amounts designed to produce a combined flow with a desired temperature, the combined flow being used to fill one or more buffer vessels. Heat is also transferred at a second heat exchanger from a stream of pressurized hydrogen from the at least one buffer vessel to the cooled flow of heat transfer fluid to produce a cooled flow of pressurized hydrogen that is used to fill tanks of fuel cell electric vehicles.