A high-pressure vessel includes a liner and a reinforcing layer. The reinforcing layer includes an inner reinforcing layer and an outer reinforcing layer. Further, the inner reinforcing layer includes a first covering portion, a third covering portion, and a second covering portion. Edge surfaces of the first covering portion and the third covering portion that face each other are in contact with each other. Edge surfaces of the third covering portion and the second covering portion that face each other are also in contact with each other. The outer reinforcing layer covers the outside of the first covering portion, the third covering portion, and the second covering portion.

A pressure vessel includes: a barrel part disposed in a predefined square area and having a diameter corresponding to a length of one side of the square area; a first nozzle member disposed at one end of the barrel part; a second nozzle member disposed at an opposite end of the barrel part; and clamp rings disposed in the square area, positioned outside the barrel part, and configured to lock the first and second nozzle members to the barrel part, thereby improving spatial utilization and a degree of design freedom.

Methods and manufactures disclosed herein generally relate to a cannular composite (ITC) structure composed of multiple layers of sealing, reinforcement, sensing, protection, and interspatial injected materials.

The present invention discloses a knob cap for a high-pressure tank including a first knob cap portion having a coupling groove coupled to a knob of a liner of the high-pressure tank in a lower surface, including a peripheral wing portion extending outward to be in contact with a surface of the liner to outside of a lower portion, and having a column portion in the shape of a column extending upward in a center; and a second knob cap portion integrally coupled with the first knob cap portion, having the column portion of the first knob cap portion inserted into a hollow, and including a plurality of inner grooves in the shape of a column having an upper end opened outside of the hollow and extending downward.

Station for filling one or more tank(s) with pressurized gas, in particular pressurized hydrogen, comprising at least two pressurized gas source stores, a transfer pipe having an upstream end connected parallel to the source stores and a downstream end intended to be connected to a tank to be filled, the station comprising a valve assembly for controlling the transfer of gas between the sources and the tank to be filled and an electronic controller connected to the valve assembly and configured to control the valve assembly, the electronic controller being configured to implement successive transfers of gas between the source stores and the tank to be filled via successive pressure balancing sequences, the electronic controller being configured to determine the temperature attained by the gas in the source stores or by the source stores during transfers of gas and, when said attained temperature is below a determined threshold, to prevent or to interrupt this transfer of gas or to reduce the flow of gas transferred during said transfer.

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.

Method for preparing a hydrogen tank including at least one sealing layer of a composition including at least one polyamide P1, and at least one base in order to provide the tank with at least one opening, wherein the method includes: providing of at least one base, the at least one base being covered by at least one layer of a composition including at least one adhesion primer; preparing the at least one sealing layer; fastening the at least one base to the at least one sealing layer.

A pressure vessel includes a vessel body including a cylindrical-shaped straight body portion with a spiral-shaped projection portion formed at an outer peripheral surface of the straight body portion, and a covering portion that comprises a fiber bundle wrapped onto the outer peripheral surface of the straight body portion in a spiral pattern running parallel to the projection portion so as to cover the outer peripheral surface of the straight body portion.

This high-pressure tank includes a resin liner constituting a hollow fluid filling part, a ferrule including a supply/discharge port which communicates with an internal space of the liner and a flange part which protrudes outward in a radial direction from a circumferential region of the supply/discharge port and abuts on the liner, and a reinforcing layer made of a fiber reinforced resin attached to cover across the liner and an outer circumferential surface of the flange part, in which a discharge hole allowing a gap between abutting surfaces of the flange part and the liner to communicate with an inside of the supply/discharge port and discharging a fluid accumulated between the liner and the reinforcing layer to the supply/discharge port is provided in the ferrule, and a trap groove surrounding a circumferential region of the discharge hole is provided on at least any one of the abutting surface on the flange part side and the abutting surface on the liner side.

A pressure vessel, in particular a cryogenic pressure vessel, has an inner vessel, an outer vessel and a chamber that can be evacuated at least partly. A motor vehicle includes such a pressure vessel.