A pressurization device for pressurizing an enclosure may include a container containing a pressurized fluid, a pin that is inserted into the container, an actuator, and a heating device operably coupled to the actuator. The actuator may initially hold the pin in a closed position and allow the pin to move to an open position, disengaging from the container when the actuator increases in temperature. The pressurized fluid may force the pin toward the open position to release the pressurized fluid from the container. The actuator may include a frangible hollow bulb configured to fracture at a pre-defined temperature. The pressurized fluid may be vented into the enclosure through at least one fluid passage in fluid communication between the enclosure and the container.

There is provided a high pressure container including (i) a plurality of container bodies, each of the container bodies housing a fluid in a high pressure state and being able to release the fluid through a release portion, (ii) an opening section that is linked to the container bodies, and that opens at or above a predetermined opening temperature to release the fluid inside the container bodies, and (iii) a cover member that straddles the plurality of container bodies, that covers at least a portion of the plurality of container bodies, that is able to withstand a temperature of no less than the opening temperature, that is linked to the opening section, and that is capable of transmitting heat to the opening section.

Valve for storage of fluid under pressure, comprising a body housing a fluid circuit comprising a first end intended to be connected to the orifice of at least one pressurized fluid storage facility, at least one second, draw-off end, at least one third, filling end, the second end and the third end being connected to the first end via a draw-off branch of the circuit and a filler branch of the circuit, respectively, the draw-off branch and the filler branch being connected in parallel to the first end of the circuit and each comprising a set of valves,

characterized in that the circuit includes two distinct draw-off ends fluidically connected to the draw-off branch and leading to the body of the valve at the level of two respective distinct orifices.

Valve comprising a body housing a fluid circuit comprising a first end intended to be connected to the orifice of at least one storage facility, at least one second, draw-off end intended to be connected to a receiver circuit, at least one third, filling end intended to be connected to a source of gas under pressure, the second end and the third end being connected to the first end via a draw-off branch of the circuit and a filler branch of the circuit, respectively, the draw-off branch and the filler branch being connected in parallel to the first end of the circuit and each comprising a set of valves, characterized in that the draw-off branch and filler branch each comprise a respective valve in series with a respective unidirectional valve.

A localized fire protection system for composite overwrapped pressure vessels which uses net or mesh which stretches in at least one direction. They can be elastomeric or polymeric or any material and/or weave that provides said function. Wrapping sections held together via a flammable fuse connected to a relief valve under pressure from the net wrappings to block a relief valve pathway to replace stored gas in case of a localized fire.

An arrangement including a pressure vessel system and a closure element. The pressure vessel system cover has an opening. The closure element is fastened in the opening and is configured to at least partially close the opening. The closure element includes a covering portion with at least one sacrificial portion and a fastening portion. The closure element is fastened to the pressure vessel system cover in a region of the opening via the fastening portion, sealing the covering portion with respect to the pressure vessel system cover. The at least one sacrificial portion is configured to be destroyed and thus at least partially expose a cutout in the covering portion when a temperature of the covering portion rises above a first temperature threshold value.

A cylinder valve for use with a cylinder containing fluid under pressure. The cylinder valve has an aluminum valve body. The valve body has a flow passage extending through the valve body for permitting fluid to flow through the body to exit the cylinder and a vent passage for permitting fluid to vent from the cylinder. Nickel plating is applied to the vent passage. A dispensing valve is positioned along the flow passage. Thermal relief material in the vent passage blocks flow through the vent passage until a predetermined venting temperature is reached when the material changes to a flowable state to unblock the vent passage and allow venting of the cylinder through the vent passage.

A high-pressure gas container (100) includes an inner layer (11) configured such that high-pressure gas is filled inside, a boss part (13-1, 13-2) provided at least at one position of the inner layer and configured to cause the gas to flow in and out, and an outer layer (12) configured to cover an outer periphery of the inner layer to reinforce the inner layer and having a higher gas barrier property than the inner layer. A gas discharge port (15-1, 15-2) is provided between the boss part and the outer layer, and a gas ventilation part (14) is formed between the inner layer and the outer layer such that the gas having permeated through the inner layer is discharged into atmosphere through the gas discharge port.

Embodiments are directed to compressed gas storage units exhibiting one or more safety features. Particular embodiments employ a pressure relief mechanism to rapidly yet safely vent the contents of the tank in the event of a fire. The mechanism may comprise an internally piloted relief valve in communication with temperature-sensitive element(s) present along the tank dimensions. Under high temperature conditions indicative of a fire, the element communicates a signal to open the internally piloted relief valve. In some embodiments the element is configured to communicate a heat signal (e.g., by thermal conduction). In certain embodiments the element is configured to communicate a pressure change signal (e.g., pneumatic, hydraulic). In other embodiments the element may communicate different signal types, such as electric (e.g., thermoelectric) or mechanical (e.g., shear or tension forces). Also disclosed is a module incorporating a plurality of tanks to offer enhanced storage capacity.

A safety apparatus is for containers loaded by gas pressure, in particular the gas side (13) of hydropneumatic devices such as hydraulic accumulators (1). The safety apparatus has a connection device (19) that can be attached to the pressure chamber of the container to form a passage (25) between the gas side (13) of the container and the outside. A structure (27) normally blocks the passage (25) and under the influence of temperature can be transferred into a state that allows a flow path through the passage (25) to be cleared.