The present disclosure provides systems and methods for storing, transporting, and using hydrogen. In some embodiments, the method may comprise (a) storing hydrogen fuel in one or more fuel storage modules; (b) transporting the one or more fuel storage modules to a vehicle fueling site, wherein one or more hydrogen fuel compatible vehicles are located at or near the vehicle fueling site; (c) loading the one or more fuel storage modules into the one or more hydrogen fuel compatible vehicles, wherein the one or more fuel storage modules are configured to be releasably coupled to the one or more hydrogen fuel compatible vehicles; and (d) decoupling the one or more fuel storage modules from the one or more hydrogen fuel compatible vehicles after the one or more fuel storage modules are depleted or partially depleted.

Pressurized gas tanks are filled from at least one gas source using a transfer circuit, a set of buffer storage tanks and at least one compressor. The set of buffer storage tanks may be filled with pressurized gas from the at least one gas source by pressure balancing via balancing lines without going through the at least one compressor. The set of buffer storage tanks may also be filled with pressurized gas from the at least one gas source that is compressed by the at least one compressor.

A regulating valve device for a fluid cylinder includes a shut off valve having a ball tappet that actuates the shut off valve. A lever has a cam surface that interacts with the ball tappet as the lever is rotated to translate the ball tappet linearly and actuate the shut off valve. The lever is rotatable from a first valve closed position through a valve open position to a second valve closed position such that the valve open position is intermediate of the first and second valve closed positions. A pressure or flow regulating valve is downstream of the shut off valve. A handwheel is operatively connected to the pressure or flow regulating valve to adjust an outlet pressure of the pressure or flow regulating valve. The handwheel has an axis of operation that is offset from a longitudinal axis of the fluid cylinder by an acute angle.

A vaporizer system includes a defrosting function along with the ability to convert liquefied gas to a use gas. The vaporizer system includes first and second vaporizers and piping that transfers fluid from an inlet port to an outlet port with a portion of the piping being between the first and second vaporizer. The system also includes a trim heater and a number of valves for regulating flow of the fluid through the transfer piping. The valves may be placed in a first configuration where vapor from the first vaporizer is heated and directed to the second vaporizer so that the second vaporizer is defrosted and a second configuration where vapor from the second vaporizer is heated and directed to the first vaporizer so that the first vaporizer is defrosted.

The present disclosure provides systems and methods for storing, transporting, and using hydrogen. In some embodiments, the method may comprise (a) storing hydrogen fuel in one or more fuel storage modules; (b) transporting the one or more fuel storage modules to a vehicle fueling site, wherein one or more hydrogen fuel compatible vehicles are located at or near the vehicle fueling site; (c) loading the one or more fuel storage modules into the one or more hydrogen fuel compatible vehicles, wherein the one or more fuel storage modules are configured to be releasably coupled to the one or more hydrogen fuel compatible vehicles; and (d) decoupling the one or more fuel storage modules from the one or more hydrogen fuel compatible vehicles after the one or more fuel storage modules are depleted or partially depleted.

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.

A gas magazine for a pneumatic weapon simulator. A gas magazine fill station for a pneumatic weapon simulator. A method of filling a gas magazine for a pneumatic weapon simulator. The apparatus for filling and refilling a fluid reservoir of a magazine for a pneumatic firearm simulator from a source of pressurized fluid of the present disclosure includes: a receiver for receiving the magazine; a passage for conveying the pressurized fluid from the source of pressurized fluid to the fluid reservoir of the magazine received in the receiver; and, a vent valve in fluid communication with the passage for venting the pressurized fluid from the passage. The apparatus may further include a vent channel in fluid communication with the vent valve. The apparatus may also include a valve in fluid communication with the passage which is adapted for permitting pressurized fluid to be conveyed through the passage; and alternately, prevent pressurized fluid from being conveyed through the passage.

A one-way valve device or a non-return valve mechanism in the valve device provides a higher retaining residual pressure without upsizing. A non-return valve cassette in a consumption valve device regulates gas flow. The cassette includes a check valve movable forward and backward between a valve-closed position and a valve-open position in an outlet secondary flow channel and movable backward to the valve-open position under pressure of the gas flowing upstream, and a first coil spring with a spring force biasing the check valve upstream. The first coil spring permits the check valve to move downstream against the upstream biasing when an upstream pressure is a predetermined pressure or greater. The check valve includes a downstream end smaller than an upstream end in an area communicating with an upstream space at the valve-closed position.

A fitting for a liquid gas bottle with a gas consumer connection piece, with a gas inlet opening on the underside, with a gas conducting connection between the gas inlet opening and the gas consumer connection piece, with a rotary handle, which can be turned into an open position and into a closed position, wherein in the open position gas can flow from the gas inlet opening to the gas consumer connection piece and in the closed position no gas can flow from the gas inlet opening to the gas consumer connection piece, with a closable opening on the upper side of the fitting, with a gas conducting connection which connects the closable opening on the upper side with an opening at the underside in such a way that refilling a connected gas bottle with gas through the underside and through the closable opening is possible, characterized in that the edge of the closable opening is part of the rotary handle.

A compressed gas storage system that includes a pressure vessel. The pressure vessel includes a first vessel portion and a second vessel portion in fluid communication with the first vessel portion. The pressure vessel includes a third vessel portion in fluid communication with the second vessel portion. The compressed gas storage system includes a first valve positioned between the first vessel portion and the second vessel portion and a second valve positioned between the second vessel portion and the third vessel portion. The first valve allows and impedes fluid flow between the first and the second vessel portions. The second valve allows and impedes fluid flow between the second and the third vessel portions.