A method for rapidly filling a compressed gas storage tank with a moderated temperature rise using a Coanda nozzle to inject the feed gas into the tank and using the Coanda nozzle to direct the feed gas along the inner surface of the storage tank; entraining the stored gas with the feed gas that is flowing under the influence of the Coanda effect to flow along the inner surface of the gas storage tank; and transferring heat from the flowing gas to the external walls of the tank. Also, a compressed gas storage tank for rapid filling with a moderated temperature rise comprising: a gas storage tank and a Coanda nozzle capable of directing feed gas that is injected into the gas storage tank along the inner surface of the gas storage tank.

A cryogenic railway tank car includes an outer tank, an inner tank positioned within the outer tank, an internal nozzle, and a pipe. The inner tank includes a shell that defines an opening. The internal nozzle is coupled to the inner tank at least along a perimeter of the opening and extends in a radial direction through the opening and into the inner tank. A space defined by an interior surface of the outer tank, an exterior surface of the inner tank, and an interior surface of the nozzle is configured to hold a vacuum. The pipe is configured to transport the fluid between an exterior of the outer tank and the interior of the inner tank. At least a portion of the pipe extends from the outer tank to the inner tank through at least a portion of the nozzle.

A high-pressure tank producing apparatus capable of reducing time for increasing temperature of a tank body. The apparatus that heats the tank body with fibers impregnated with a thermosetting resin wound around its surface includes a heating chamber for housing the tank body and a retaining mechanism for retaining the tank body within the heating chamber, in which the heating chamber has an injection port for injecting heated gas onto the surface of the tank body and an exhaust port for discharging the gas to the outside of the heating chamber, the exhaust port being disposed in a position where the injection port is projected in a gas injecting direction, and the retaining mechanism retains the tank body in a region where the injection and exhaust ports overlap with each other as viewed from the gas injecting direction and in a position between the injection and exhaust ports.

A manufacturing method for a high-pressure tank includes joining a cylindrical member and dome members to each other so that a first reinforcing layer and a second reinforcing layer to which a cap is attached are formed, and after a resin material is poured inside the first reinforcing layer, rotating the first reinforcing layer so that the resin material covers an inner surface of the first reinforcing layer, and solidifying the resin material so that the liner is formed. The cap is attached to the first reinforcing layer so that a recessed portion in which the resin material is collected is formed between the cap and the first reinforcing layer. After the first reinforcing layer is rotated, the resin material is solidified in a state where the cap side is positioned on a lower side.

A method of producing a high-pressure tank including a liner and a reinforcement layer made of fiber-reinforced resin includes a process of forming at least a domed member included in the reinforcement layer. The process includes placing first fiber bundles to form a part of a protruding portion and a part of a domed main body, and placing second fiber bundles to cover the first fiber bundles. The first fiber bundles are placed, such that a fiber direction of the first fiber bundles in the protruding portion follows an axial direction of the protruding portion, and resin with which the fiber bundles are impregnated is solidified while the first fiber bundles are being placed. The second fiber bundles are placed, such that the fiber direction of the second fiber bundles intersects with the fiber direction of the first fiber bundles.

A pressure vessel assembly includes a vessel having a wall defining a chamber and a circumferentially continuous lip projecting into the chamber from the wall. The lip defines a through-bore that is in fluid communication with the chamber. A nozzle assembly of the pressure vessel assembly includes a tube projecting at least in-part into the through-bore, and an o-ring disposed between, and in sealing contact with, the tube and the lip.

Disclosed is a pressure vessel for storing and keeping fluid and a three-dimensional shell structure used therefor. The pressure vessel has a shell structure in which an inner part is divided and partitioned into two sub volumes which are twisted with each other, by the interface and sub volumes are continuous, as a main body of the pressure vessel, and two sub volumes are independently utilized as a storage space of a high pressure vessel or a space for receiving or moving a heat exchange medium.

A method for producing a light-weight pressure tank with a light-weight pressure container from a metal material, the light weight pressure container including at least one polar or equatorial attachment element and a container wall connected to the at least one polar or equatorial attachment element, wherein at least the container wall is formed integrally in one piece with the at least one polar or equatorial attachment element by additive manufacturing by a thermal spraying method by applying the metal material to a convex or concave mold surface of a cambered formwork mold by a spray jet through at least one spray nozzle.

A high-pressure tank in a method of manufacturing a high-pressure tank includes a liner and a fiber. The manufacturing method includes: preparing a dome and a pipe each having a general portion and a joining end portion formed to be thicker than the general portion such that an outer diameter at least at an end face is larger than an outer diameter of the general portion by an estimated level difference amount; joining the joining end portion of the dome and the joining end portion of the pipe together in an axial direction; cutting off portions on the further outer side in a radial direction than a reference plane, with an outer peripheral surface of the general portion of the dome having a large outer diameter at the joined surface as the reference plane; and winding a carbon fiber around the outer peripheral surface of the liner in helical winding.

A method for manufacturing a high-pressure tank including a liner and a fiber-reinforced resin layer, the fiber-reinforced resin layer having a first reinforcing layer covering an outer surface of the liner and a second reinforcing layer covering an outer surface of the first reinforcing layer includes: forming a cylinder member made of a fiber-reinforced resin and having fibers oriented in a circumferential direction of the cylinder member; forming two dome members made of the fiber-reinforced resin; forming a reinforcing body that is the first reinforcing layer by joining the cylinder member and the dome members; and forming on an outer surface of the reinforcing body the second reinforcing layer made of the fiber-reinforced resin and having fibers oriented across the dome members.