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 stores fuel. The pressure vessel includes a liner, a fiber-reinforced layer, at least one end piece, and at least one outlet. The fiber-reinforced layer surrounds the liner, at least in some regions. The end piece is covered by the fiber-reinforced layer, at least in some regions. The at least one outlet is used to carry fuel that has collected in a boundary layer between the liner and the fiber-reinforced layer and is to be drained. The outlet surrounds the end piece, at least in some sections. The outlet is arranged and formed in such a way that the fuel to be drained escapes from the boundary layer into the outlet.

A system for storing a pressurized gas in a motor vehicle is provided, having a storage container and at least one thermally activatable safety valve for emptying the storage container. The safety valve activates automatically at a corresponding high temperature. The storage container has an additional activatable emptying device, which has an interface for an external energy source. The interface can be connected to the external energy source in order to empty the storage container in a targeted manner. Also provided is a method for emptying a storage container for a pressurized gas in a motor vehicle.

A method of manufacturing a high pressure tank includes: preparing a liner; forming a fiber reinforced resin layer which is a layer of a fiber reinforced resin on an outer side of the liner, and forming a resin layer which is a layer formed of a portion of a thermosetting resin on an outer surface of the fiber reinforced resin layer; increasing a temperature of the fiber reinforced resin layer and the resin layer to a predetermined temperature which is a temperature at which the thermosetting resin is cured; causing a pressure in the liner to be regulated to be a second pressure higher than a first pressure which is a pressure in the liner in the forming of the fiber reinforced resin layer and the resin layer; and maintaining the temperature of the fiber reinforced resin layer and the resin layer at the predetermined temperature.

A tank comprises: a liner having a cylindrical trunk portion and a hemispherical dome portion provided at both ends of the trunk portion in a central axis direction; a fiber-reinforced resin layer formed on an outer peripheral surface of the liner; and a metallic reinforcement member formed integrally with the liner. The reinforcement member is arranged in the dome portion at least at a shoulder portion near a boundary between the dome portion and the trunk portion and is not arranged at least at part of the trunk portion.

The present disclosure relates to a pressure vessel equipped with a permeated gas discharging structure, the pressure vessel including a nozzle boss into and from which a gas flows and is discharged; a liner coupled to a flange portion of the nozzle boss and provided with a space formed therein for receiving fluid; a discharge path forming part configured to form a gas discharging path from the nozzle boss side along an outer surface of the liner in a central axial direction; and a composite material provided at outer sides of the liner and the discharge path forming part

A hydrogen pressure vessel capable of preventing hydrogen-induced cracking of a cylinder is provided. In a hydrogen pressure vessel according to one embodiment, a gap part (G) in which an inner peripheral surface of a cylinder (10) is spaced apart from an outer peripheral surface of a lid (20) is provided between a female thread part (10a) of the cylinder (10) into which the lid (20) is screwed, and a resin seal member (30), and the cylinder (10) includes a first through hole (41) for discharging gas in the gap part (G) into a relief pipe (51) and a second through hole (42) for introducing gas containing oxygen into the gap part (G) formed therein.

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.

The invention relates to a head (2) for a tank (1) used to store pressurised gas, comprising, in an integrated manner: at least two components (13.sub.1, 13.sub.2) for treating, distributing and/or shutting off the gas; an upstream connector (20) suitable for being removably attached in a boss (4) of the tank (1); and downstream outlet pipes (21.sub.1, 21.sub.2) suitable for connecting the head (2) to any system using said gas by means of the aforementioned components (13.sub.1, 13.sub.2). According to the invention, each component (13.sub.1, 13.sub.2) comprises at least two sealing devices (14.sub.1, 14.sub.2) defining an intermediate space therebetween, and at least one pipe (12), called tapping pipe, connects each of the intermediate spaces and a common space (8) into which ail the tapping pipes (12) emerge, with an orifice (15) providing a connection between the common space (8) and a gas-detection device (16).

An integrated hydrogen fueling station for fueling of vehicle tanks with hydrogen comprising an electrochemical compressor in which secondary hydrogen originating from leakage, boiling-off or venting of hydrogen-containing gas in one or more mechanical hydrogen compressors is collected and transferred to the electrochemical compressor and compressed by the electrochemical compressor, wherein the secondary hydrogen contains hydrogen and further gaseous components. A method for operating a hydrogen fueling station for fueling of vehicle tanks with hydrogen wherein secondary hydrogen originating from leakage, boiling-off or venting of hydrogen-containing gas in one or more mechanical hydrogen compressors of the fueling station operative units is collected and transferred to an electrochemical compressor and compressed in the electrochemical compressor, and wherein the secondary hydrogen contains hydrogen and further gaseous components.