A computer-controlled method of automatically purging and precooling a hydrogen fuel line prior to transferring hydrogen fuel from a source to a storage tank includes purging moisture from a hydrogen fuel line. The hydrogen fuel line is configured to fluidically couple a hydrogen tanker storage tank and a fueling station storage tank, the hydrogen storage tanker storage tank and the fueling station storage tank configured to store liquid hydrogen. The method also includes pre-cooling the hydrogen fuel line, causing hydrogen fuel to flow through the hydrogen fuel line to re-fill the fueling station storage tank, and expelling residual hydrogen fuel from the hydrogen fuel line when the fueling station storage tank re-filling is complete.

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

The invention relates to a device for storing compressed gas, for example hydrogen or natural gas, comprising a storage line (1) to which at least one compressed gas container (2) is connected via a valve (3). According to the invention, the storage line (1) has at least one connection port (4) for the gas-tight connection of the at least one compressed gas container (2), and a safety element (5), which has a filter function and a shutoff function, is integrated in the connection port (4). The invention further relates to a vehicle having a device according to the invention for storing compressed gas.

Disclosed is a method for automatically replacing high-pressure gas barrels, in which when loading a high-pressure gas barrel is loaded on the lift of a cabinet so as to supply gas to the wafer production line in the semiconductor fabrication FAB process facility, at the time point of replacement of the high-pressure gas barrel, a used high-pressure gas barrel is separated from a connector holder and then a new high-pressure gas barrel is connected to the connector holder.

Scalable greenhouse gas capture systems and methods to allow a user to off-load exhaust captured in an on-board vehicle exhaust capture device and to allow for a delivery vehicle or other transportation mechanism to obtain and transport the exhaust. The systems and methods may involve one or more exhaust pumps, each with an exhaust nozzle corresponding to a vehicle exhaust port. Upon engagement with the vehicle exhaust port, the exhaust nozzle may create an air-tight seal between the exhaust nozzle and the vehicle exhaust port. A first pipe may be configured to transport captured exhaust therethrough from the exhaust nozzle to. The captured exhaust may be at least temporarily stored in an exhaust holding tank connected to and in fluid communication with the first pipe

Device for storing and transferring cryogenic fluid, comprising at least one elementary container comprising a liquefied gas tank, the tank being provided with a first pipe for transferring fluid, which pipe has a first end connected to an upper end of the tank, the tank being provided with a second pipe for transferring fluid, which pipe has a first end connected to a lower end of the tank, the first and the second transfer pipes each comprising an assembly of respective valves, characterized in that the first transfer pipe comprises two arms forming two second ends connected in parallel to the first end of the first transfer pipe, the two second ends of the first transfer pipe each being provided with a respective fluidic connection coupling, and in that the second transfer pipe comprises two arms forming two second ends connected in parallel to the first end of the second transfer pipe, the two second ends of the second transfer pipe each being provided with a respective fluidic connection coupling.

A connector including a plug and a socket. The socket includes: a socket body having an insertion hole formed therein; a columnar rotary valve inserted into the insertion hole; and a switching mechanism for switching an open state and a closed state. The rotary valve includes a pair of convex portions respectively in contact with both ends of the insertion hole to seal an outflow of a liquid; and a concave portion provided between the pair of convex portions and forming a cleaning space) in which a cleaning fluid is circulated between the concave portion and an inner peripheral surface of the insertion hole. The socket body includes a cleaning fluid inflow passage for guiding the cleaning fluid to the cleaning space and a cleaning fluid outflow passage through which the cleaning fluid flows out of the cleaning space.

A fluid drain system for pressurized fuel systems includes a fluid drain tool that includes: an enclosure including a collection cavity; a fitting configured for removable coupling to a fluid filter drain valve to fluidly couple the fluid drain tool to the fluid filter drain valve; a tube that fluidly couples the fitting to the enclosure, such that fluid collected from the fluid filter drain valve can be transferred through the tube to the collection cavity of the enclosure; and a selectively openable valve having a first end in fluid communication with the collection cavity of the enclosure, and a second end in fluid communication with an atmosphere.

A suction method that sucks inside of a filling nozzle used for supply of hydrogen by using a suction nozzle that is engaged with the filling nozzle, the suction method comprising: evacuating a vacuum chamber by using a vacuum pump; and sucking inside of the suction nozzle by using the evacuated vacuum chamber.

A system and method for the transfer of cryogenic fluid fuel includes a nozzle positionable with respect to fuel tank inlet, e.g., of an unmanned aerial vehicle (UAV), a seal to seal the area where the nozzle and inlet are connected, a collapsible and expandable bellows providing an isolation volume where the fluid is transferred from the nozzle into the inlet; a vacuum is provided in the volume to avoid accumulation of fuel or other species in the volume.