A storage tank includes a tank roof and a tank sidewall. At least one opening is located in at least one of the tank roof or the tank sidewall. A pipe extends through the at least one opening, the pipe having a sleeve assembly positioned around the pipe. The sleeve assembly also extends through the opening. The sleeve assembly includes a sleeve, at least one layer of insulation, and an inner flange. The inner flange is located on a first end of the sleeve and is coupled to the pipe. The sleeve, in turn is coupled to the tank such that the inner flange is located within the storage tank. The at least one layer of insulation is positioned in an annulus between the pipe and the sleeve.

A hydrogen storage tank for a hydrogen fueled aircraft. The tank has a wall made of layers of aerogel sections around a hard shell layer, sealed within a flexible outer layer, and having the air removed to form a vacuum. The periphery of each layer section abuts other sections of that layer, but only overlies the periphery of the sections of other layers at individual points. The wall is characterized by a thermal conductivity that is lower near its gravitational top than its gravitational bottom. The tank has two exit passageways, one being direct, and the other passing through a vapor shield that extends through the wall between two layers of aerogel. A control system controls the relative flow through the two passages to regulate the boil-off rate of the tank.

A high pressure tank includes: a supplying/discharging hole; and a cap having formed therein a cap-side path which is a part of a flow path. A repelling coating interposes between a liner-side end surface facing a resin-made liner, of a flange section configuring the cap, or a flange section-facing outer surface facing the flange section, of the liner. The repelling coating is formed of a material that repels a matrix resin of a fiber-reinforced resin configuring a reinforced layer.

A method for constructing a double-shell-structured cylindrical tank having an inner tank and an outer tank includes: a step of, inside the outer tank, assembling a first structure of the inner tank excluding a lowermost level of the inner tank by alternately and repeatedly performing raising of an inner tank lateral plate using a jack-up unit and attaching of a next inner tank lateral plate below the raised inner tank lateral plate; a step of assembling a second structure serving as the lowermost level of the inner tank on an annular portion provided on a base portion of the outer tank and configured to support the inner tank; and a step of assembling the inner tank by joining the first structure and the second structure.

A hydrogen storage material tank including a shell along a longitudinal axis, a hydrogen supply and collection duct along a longitudinal axis, a stack of plural cups around the duct, wherein each cup includes a base perpendicular to the longitudinal axis, a passage allowing installation of the cup around the duct, an outer wall perpendicular to the base, in contact with the shell and an inner wall perpendicular to the base and in contact with the duct, wherein each cup is force-fitted on the duct and each cup includes a mechanism allowing mutual engagement of the cups in one another by mechanical deformation of free ends of the outer walls of the cups.

The present invention relates to a device for the storage and delivery of liquid and/or gaseous media under pressure, having a media container (1) of a plastics material, preferably of polyamide, receiving the medium, at least one valve connection element (2), connected to the media container (1), and at least one valve element (3, 3a, 3b), connectable to the valve connection element (2), wherein the media container (1) has a collar (4), which is molded on in one piece and protrudes from the media container (1) and has a collar outer wall (5) and a collar inner wall (6). A restoring element (11, 11a, 11b) is arranged in such a way that, during the fitting of the valve element (3, 3a), the collar (4) and the restoring element (11, 11a, 11b) are jointly pressed between a partial region (9a) of the wall (9) and the pressing portion (10), wherein the restoring element (11, 11a, 11b) is formed from a crosslinked plastics material, preferably from crosslinked polyethylene, and wherein the pressing portion (10), the collar (4) and the restoring element (11, 11a, 11b) are made to match one another and formed in such a way that the joint pressing of the collar (4) and the restoring element (11, 11a, 11b) has the effect that an elastic deformation (X) of the restoring element (11, 11a, 11b) that is greater than the maximum creep deformation (Y) of the collar (4) over the service life of the device can be set, and so the creep deformation (Y) of the collar (4) can be compensated by way of the restoring element (11, 11a, 11b). The invention also relates to a fuel-energy conversion device, a motor vehicle and a method for fitting a device for the storage and delivery of liquid and/or gaseous media under pressure.

A subsea tank element comprises at least one tank section (1), the tank section(s) forming a cylindrical concrete-tank (2) closed at its opposite ends by two end caps (12). The tank element further comprises a rectangular structure (3, 4, 5) surrounding the cylindrical tank (2), and a connection (150, 160) between the rectangular structure (3, 4, 5) and the cylindrical tank (2) permitting a motion of the wall of the cylindrical tank (2) within predetermined limits for deflection of the rectangular structure (3, 4, 5). Permanent ballast (6, 7) and a ballast tank (8) control buoyancy and ensure static stability. Post tensioning cables through channels 9 tie the parts into a tank element, and the tank elements into a system. Several applications, including a subsea barge, a subsea hydro-electric plant and a hovering storage tank assembly are disclosed.

Vessel assemblies, heat transfer units for prefabricated vessels, and methods for heat transfer prefabricated vessel are provided. A heat transfer unit includes a central rod, and a plurality of peripheral rods surrounding the central rod and connected to the central rod. The plurality of peripheral rods are movable between a first collapsed position and a second bowed position, wherein in the second bowed position a midpoint of each of the plurality of peripheral rods is spaced from the central rod relative to in the first position. The heat transfer unit further includes a heat transfer element connected to one of the plurality of peripheral rods.

An assembly includes a pressure vessel for containing a fluid, the vessel including a domed end portion having an outer surface; and a component positioned at the domed end portion, wherein the component is attached to the outer surface by a plurality of filament bands wound upon the domed end portion and over at least a part of the component. In another aspect, an apparatus is described for preventing damage to a vessel. The apparatus includes a component configured to be positioned at the domed end portion, wherein the component is configured to be attached to the outer surface by a plurality of filament bands wound upon the domed end portion and over at least a part of the component. A method for attaching a component to a vessel is described that includes positioning the component at the domed end portion and winding a plurality of filament bands.

A boss configured for attachment to a pressure vessel includes a first bore therein and a bearing disposed at least partially within the first bore. A system for supporting a pressure vessel on a vessel mount includes a boss, a bearing, and an attachment element. The boss is attached to the pressure vessel and has a first bore therein. The bearing is disposed at least partially within the first bore and has a second bore therethrough. The attachment element is configured to be affixed to the vessel mount, wherein a portion of the attachment element extends through the second bore and is slidable within the first and second bores substantially along a longitudinal axis of the pressure vessel. A method is described for supporting a pressure vessel on a vessel mount.