A high-pressure container unit includes: a box-shaped case mounted on a vehicle and configured to include a bottom portion, a ceiling portion, and a peripheral wall portion; a plurality of container main bodies arranged in an interior of the case and each having a cylindrical body portion; and a reinforcing member extending along an axial direction of the container main body, the reinforcing member being provided in at least one of a space surrounded by the container main bodies adjacent to each other and the bottom portion and, a space surrounded by the container main bodies adjacent to each other and the ceiling portion.

A high-pressure tank for storing a gas includes: a liner having a cylindrical opening; a reinforcing layer covering the liner; a mouthpiece including an external thread portion on an outer periphery thereof and externally fixed to the reinforcing layer covering the opening; a manifold including an inserted portion to be inserted into the opening so as to close the opening, an abutting surface configured to abut on an end face of the opening, and an internal thread portion on an inner periphery thereof to be screwed into the external thread portion of the mouthpiece; and a communicating path that allows the abutting surface of the manifold to communicate with an outside of the high-pressure tank.

A pressure vessel is disclosed having an inner vessel made of an inner-vessel material and an outer layer applied thereon as well as a valve-connection piece with a two-part sealing cone and outer piece, the sealing cone being positioned on an inner face of a protrusion of the inner vessel and the outer piece for generating a sealing pressure being positioned between the two-part sealing cone, the protrusion and the outer piece on an outer face of the protrusion. The outer piece includes a suitably shaped groove having a first and a second edge for receiving a sealing ring that seals under the sealing pressure, wherein the groove and the sealing ring are dimensioned such that, under the sealing pressure and due to the plastic deformability, first and second sealing beads project at least into two gaps between the sealing ring and form the first and second edge.

The innovation described herein generally pertains to a system and method related to a pressure vessel including a tank formed of an injected tank liner with co-injected boss and permeation barrier film surrounded by a layer of thermoplastic composite filament winding and a protective jacket disposed thereon that facilitates stacking and portability of the pressure vessel and provides an air passage for convective heat transfer between the tank and the environment.

A high-pressure tank, a manufacturing method for a high-pressure tank, and a manufacturing device for a high-pressure tank capable of simplifying a shape of a metal fitting and performing high-speed FW molding without causing an idle rotation of the metal fitting or a deformation of a liner, for example, when performing the high-speed FW molding are provided.

A high-pressure tank includes a liner, a reinforcing fiber layer, and a metal fitting. The reinforcing fiber layer is formed on an outer peripheral surface of the liner. The metal fitting is attached to the liner. The liner includes a liner main body and a protrusion part is provided in a part (cylindrical part) of the liner main body. The protrusion part is formed to protrude in a direction moving radially inward from the cylindrical part and to be fittable to a rotating shaft.

A pressure vessel includes a vessel main body, a first protective member, and a second protective member. The vessel main body is configured to contain gas inside. The second protective member is configured to exhibit performance that is different from that of the first protective member. One of the first protective member and the second protective member has recesses that the other one of the first protective member and the second protective member does not have at an end on a peak of a domical panel side provided with the one of the first protective member and the second protective member.

A high pressure tank of a high pressure tank apparatus includes: a resin-made liner; a reinforced layer; a supplying/discharging hole to which a supplying/discharging flow path is connected via a connecting section; and a supplying/discharging-side lead-out hole that leads out a fluid interposing between the liner and the reinforced layer. A leaked fluid storage section is capable of storing a leaked fluid that has leaked from the connecting section. A supplying/discharging-side discharge flow path is provided independently from the leaked fluid storage section, and, when an opening/closing valve opens, discharges to the air a temporary release fluid that has been led out via the supplying/discharging-side lead-out hole. A control section, when it has judged, based on a detection result of a detecting unit, that there is a condition enabling the temporary release fluid to be discharged, opens the opening/closing valve.

A high-pressure tank includes: a liner; an epoxy resin; a fiber; and a fiber-reinforced epoxy resin layer formed on an outer side of the liner. The epoxy resin has a contact angle on polytetrafluoroethylene ((C.sub.2F.sub.4).sub.n) of 70° or less in an uncured state.

A gas control system includes a high pressure tank, a temperature sensor, a pressure sensor, an injector, and a gas control ECU. The high pressure tank includes a liner, a reinforcing layer, and a discharge hole for discharging hydrogen gas from the liner. The temperature sensor detects the temperature of the reinforcing layer or the temperature around the outside of the high pressure tank. In the implementation of the gas control method, the gas control ECU, based on temperature information detected by the temperature sensor and pressure information detected by the pressure sensor, changes the timing of starting limiting control for limiting the discharge of hydrogen gas.

A pressure vessel is disclosed having an inner vessel made of an inner-vessel material and an outer layer applied thereon as well as a valve-connection piece with a two-part sealing cone and outer piece, the sealing cone being positioned on an inner face of a protrusion of the inner vessel and the outer piece for generating a sealing pressure being positioned between the two-part sealing cone, the protrusion and the outer piece on an outer face of the protrusion. The outer piece includes a suitably shaped groove having a first and a second edge for receiving a sealing ring that seals under the sealing pressure, wherein the groove and the sealing ring are dimensioned such that, under the sealing pressure and due to the plastic deformability, first and second sealing beads project at least into two gaps between the sealing ring and form the first and second edge.