A pressure vessel assembly includes a pressure element storing compressed gas and a shell enclosing the pressure element and capture the compressed gas that permeates from the pressure element. The pressure vessel assembly includes an end fitting extending into a cavity of the pressure element and from the pressure element through the shell. The end fitting includes a stem that extends out from the shell in one direction and into the cavity of the pressure element in an opposite direction and a cap that surrounds the pressure element and the stem at a location external to the pressure element. The pressure vessel assembly includes a retention component sustaining engagement of the end fitting with at least one of the pressure element or the shell below a predetermined pressure threshold.

A type IV conformable pressure vessel is provided comprising an elongated folded tank and a valve assembly configured to pass fluid into and out of an interior of the tank through first and second filling couplers directly connected to a respective first and second end of the tank. The tank has at least two chambers for the storage of fluid. The valve assembly receives fluid from an external source, selectively provides the external fluid through a Venturi nozzle into a mixing chamber, recirculates fluid from the second end of the tank into the mixing chamber, and delivers the mixture of the recirculated fluid and the external fluid to the first end of the tank.

An assembly for storing and transporting compressed fluid, such as compressed natural gas (CNG) that includes; a plurality of hexagonally stacked pipe stored in a cargo hold in or on a vessel, such as a ship or barge, that includes a lower support, side supports and a forcing mechanism that presses so strongly down on the pipes that they cannot move relative to themselves or relative to the vessel on which they are placed in any service situation. The friction between each of the pipes causes the plurality of pipes to act as part of the vessel in terms of its structure. Each of the pipes in the plurality of pipes is connected to a manifold system to allow or the loading and unloading of the compressed fluid.

The invention relates to a hybrid pressure vessel with a fiber-composite component and a metallic component. Furthermore, the invention relates to a manufacturing method for such a hybrid pressure vessel. The hybrid pressure vessel according to the invention has a liner having an inner face and an outer face, with an outer diameter DL, and a metallic boss with an outer diameter DB, the metallic boss being adapted to accommodate a valve, the hybrid pressure vessel having a storage volume on the inside, the liner being pipe-shaped and the outer diameter DB of the boss being at least as large as the outer diameter DL of the liner.

Portable natural gas distribution systems for dual fuel fleets such as hydraulic fracturing fleets are described.

A fuel oxidation system including an inlet in fluid communication with an interior of a sealed container, and the sealed container is holding permeated gas released from a pressure vessel within the sealed container. Another inlet is in fluid communication with an environment surrounding the sealed container, and the environment includes oxygen gas (O.sub.2). An oxidation module is in fluid communication with the inlet and the other inlet, and the oxidation module is combining the permeated gas received by the inlet with the oxygen gas (O.sub.2) received by the other inlet to form a preferred substance.

A conformable pressure vessel including pressure vessel segments defined by a cavity disposed within a liner. The pressure vessel segments receive and store a gas in a compressed state. Each of the pressure vessel segments includes a first section of the liner having a first diameter and a second section of the liner having a second diameter smaller than the first diameter. The conformable pressure vessel includes a reinforcement layer surrounding the liner, and an inlet in fluid communication with the cavity of the liner. The inlet receives the gas from a gas source. The conformable pressure vessel includes an outlet in fluid communication with the cavity of the liner. The outlet outputs the gas from the pressure vessel segments. The conformable pressure vessel includes a connecting tube in fluid communication with the inlet and the outlet. The connecting tube receives the gas from the outlet.

A filling station for pressurized fluids has a storage container and a dispenser supplied thereby, comprising a high-pressure path and a low-pressure path. The storage container is partitioned into separate sections, which are each connected to the input of a high-pressure pump via a first switching valve and to the output of said high-pressure pump via a second switching valve. The first or second switching valves are connected on their pump sides to the low-pressure path of the dispenser via a third switching valve. The output of the high-pressure pump supplies a high-pressure reservoir via a fourth switching valve, which high-pressure reservoir is connected to the high-pressure path of the dispenser via a fifth switching valve.

An array of pressure vessels for storage of a compressed gas includes at least one Type 4 pressure vessel and at least one Type 1 pressure vessel. The Type 1 pressure vessel is in fluid communication with the at least one Type 4 pressure vessel. A metal wall of the at least one Type 1 pressure vessel has a Type 1 thermal conductance that is greater than a Type 4 thermal conductance of the at least one Type 4 pressure vessel.

The conformable pressure vessel having: a plurality of individual pressure vessels, the individual pressure vessels each having an outer wall enclosing an inner volume. The inner volumes are fluidly connected to each other. The individual pressures vessels are oriented parallel to each other.