For improving storage of hydrogen in a vehicle, a hydrogen tank assembly is provided for a vehicle. The hydrogen tank assembly includes an inner tank wall defining a hydrogen tank volume configured for storing liquid hydrogen; and an outer hydrogen collector defining, together with the inner tank wall, at least one cavity outside of the hydrogen tank volume and including at least one hydrogen outlet for leading gaseous hydrogen which leaks from the hydrogen tank through the inner tank wall into the at least one cavity to a hydrogen storage or a hydrogen consumer.

A pressure vessel includes a carbon fiber reinforced plastic with an integrated permeation barrier as its innermost layer. Alternating layers of permeation barrier and carbon fiber reinforced plastic may also be used. During manufacturing, the permeation barrier is sprayed on and integrated into the composite. The vessel, which is well-suited for high pressure gas storage is lighter weight than prior art vessels and has more usable volume than same-dimensioned prior art vessel. The permeation barrier encapsulates one or more ports or fittings of the vessel to reduce or eliminate the potential for gaps through which gas can escape. In one embodiment, a removable tooling process is employed in the manufacture of the vessel. In another embodiment, a permanent tooling process is employed and the tooling serves as a sorbent material for the vessel.

Disclosed is a gas storage, preferably of hydrogen, and is in the form of a multi-capillary structure. The multi-capillary structure has a constant section over a certain length, which section then reduces sharply, down to a value at which the multi-capillaries become sufficiently flexible. The area of flexibility of the multi-capillaries has a length sufficient for the transportation of hydrogen to a fuel element. In this way, a flexible multi-capillary gas pipeline is created, which pipeline is integrated with a volume of stored hydrogen, the function of which pipeline is to supply hydrogen to the fuel element. The technical result consists of the provision of rapid priming of a micro-capillary vessel with high pressure gas and the regulated release of the gas from the vessel into a collector, where a moderate pressure (<1 MPa), required for operation of the fuel element, is maintained.

Disclosed is a gas storage, preferably of hydrogen, and is in the form of a multi-capillary structure. The multi-capillary structure has a constant section over a certain length, which section then reduces sharply, down to a value at which the multi-capillaries become sufficiently flexible. The area of flexibility of the multi-capillaries has a length sufficient for the transportation of hydrogen to a fuel element. In this way, a flexible multi-capillary gas pipeline is created, which pipeline is integrated with a volume of stored hydrogen, the function of which pipeline is to supply hydrogen to the fuel element. The technical result consists of the provision of rapid priming of a micro-capillary vessel with high pressure gas and the regulated release of the gas from the vessel into a collector, where a moderate pressure (<1 MPa), required for operation of the fuel element, is maintained.

The present invention provides a lightweight high pressure vessels that are made from a liner or a liner housing that is overwrapped with a composite material. Unlike conventional high pressure vessels, the lightweight high pressure vessel of the invention includes a liner that comprises a plurality of liner sections without using welding or crimping. In particular, the lightweight high pressure vessels of the invention include a plurality of elements that are combined to form a liner housing and a composite overwrap that provides structural and mechanical strength to maintain integrity of the high pressure vessel. In one particular embodiment, the high pressure vessel of the invention is a diaphragm accumulator.

A pressure vessel includes a first (base or innermost) layer composed of a resin-impregnated woven sleeve with chopped basalt fibers assembled in the voids of the sleeve and impregnated with an epoxy resin. A second and third layer is composed of continuous basalt fiber filaments arranged in a helical pattern, with the helical angle of the second layer being not equal to that of the third layer. A fourth layer is composed of continuous basalt fibers arranged in a hoop pattern. The fifth (outermost) layer is composed of randomly oriented chopped basalt fibers impregnated with a resin matrix and compacted with the subsequent wound filaments at up to ten pounds of tension.

The invention relates to a container housing a composition comprising tetrafluoropropene. The container is made from metal and includes an inner surface, said inner surface being in contact with the composition and being at least partially covered with a coating containing zinc. Advantageously, the aforementioned composition comprises at least 15 wt.-% tetrafluoropropene relative to the total weight of the composition.

A liquefied gas storage tank includes a corner block disposed on a corner portion, wherein the corner block includes a lower block, an upper block and an upper connecting block, the upper block includes a first inner fixing unit and a second inner fixing unit respectively provided inside a first surface and a second surface, bonded and connected to a secondary barrier, and each having a structure in which a primary inner plywood, a primary corner insulating material, and a primary outer plywood are stacked, and an inner bent portion installed at a corner spatial portion between the first inner fixing unit and the second inner fixing unit, and both side surfaces of the inner bent portion that are perpendicular to the secondary barrier each have a height reduced from a total height of each of the first and second inner fixing units.

A system for controlling a gas supply unit supplying gas to a tank includes a pressure acquisition unit configured to acquire the pressure in the tank; and a controller configured to perform first filling for supplying the gas to the tank and to perform second filling, based on a flow rate determined based on a change in the pressure in the tank for a predetermined period of time during the first filling, by controlling the gas supply unit. The controller is configured to cause the gas supply unit to perform the first filling at a first flow rate in a case where the pressure in the tank prior to the first filling is a first pressure and perform the first filling at a second flow rate exceeding the first flow rate in a case where the pressure is a second pressure exceeding the first pressure.

The invention relates to a container housing a composition comprising tetrafluoropropene. The container is made from metal and includes an inner surface, said inner surface being in contact with the composition and being at least partially covered with a coating containing zinc. Advantageously, the aforementioned composition comprises at least 15 wt.-% tetrafluoropropene relative to the total weight of the composition.