Device and method for filling pressurized gas tanks, particularly vehicle pressurized hydrogen tanks, the device comprising a liquefied gas source, a transfer circuit comprising two parallel transfer lines each having an upstream end linked to the liquefied gas source, at least two separate downstream ends intended to be each removably connected to a tank to be filled, each of the two transfer lines comprising: a pump, a vaporizer for evaporating the pumped fluid, a branch for bypassing the vaporizer and a distribution valve(s) set configured to control the flow of fluid pumped and distributed between the vaporizer and the branch line, the device further comprising a storage buffer(s), which storage buffer(s) is(are) connected in parallel to each of the two transfer lines via a set of valves.

According to an embodiment, a hydrogen fueling system based on real-time communication of a compressed hydrogen storage system (CHSS) for a fuel cell comprises a CHSS including a hydrogen tank and a hydrogen tank valve, a dispenser including a dispenser controller receiving sensing data including a pressure and temperature inside the hydrogen tank and a hydrogen supply unit supplying hydrogen to an inside of the hydrogen tank based on the sensing data, and a data hydrogen moving device including a CHSS controller converting the sensing data into data for wireless communication and outputting the data, a wireless communication unit provided for wireless communication between the CHSS controller and the dispenser controller of the dispenser, and a receptacle transferring hydrogen from the hydrogen supply unit to the hydrogen tank valve.

A method for rapidly filling a compressed gas storage tank with a moderated temperature rise using a Coanda nozzle to inject the feed gas into the tank and using the Coanda nozzle to direct the feed gas along the inner surface of the storage tank; entraining the stored gas with the feed gas that is flowing under the influence of the Coanda effect to flow along the inner surface of the gas storage tank; and transferring heat from the flowing gas to the external walls of the tank. Also, a compressed gas storage tank for rapid filling with a moderated temperature rise comprising: a gas storage tank and a Coanda nozzle capable of directing feed gas that is injected into the gas storage tank along the inner surface of the gas storage tank.

An expansion turbine/compressor type high-pressure hydrogen gas filling system is simple in configuration, low in site work cost, small in the burden of maintenance work, and capable of reducing the operating cost including cost of power consumption, and it is not necessary to separately provide a way to take out the energy produced in the expansion equipment and effectively use outside such as generator, and that can be applied for temperature lowering system technology such as pre-cooler function in the final filling portion of the hydrogen station, the expansion turbine portion has with a process to incorporate the expansion turbine/compressor in the expansion turbine portion in the filling system to do the enthalpy lowering of the hydrogen gas using the expansion turbine, when the hydrogen gas accumulated at high pressure is pressurized and filled into the tank.

Gaseous fueling systems and methods are provided for dispensing fuel to a vehicle or container. The distribution systems speed up the filling process and may eliminate the use of expensive cooling systems required in the art. The methods utilize sequences of filling and emptying the vehicle gas storage tank to control the temperature of the gas inside the tank. The methods repeatedly dispense fuel to the vehicle fuel tank at a first flow rate and for a first period of time and remove fuel from the fuel tank at a second flow rate for a second period to maintain fuel temperature within a desired temperature range and until the vehicle fuel tank is filled to a desired level. In addition, the fill-up mass flowrate can be maximized to system capabilities so a fill-up can be can be completed in about one minute.

A liquefied fluid supply system is a liquefied fluid supply system of supplying a nozzle with a liquefied fluid that vaporizes after spraying and includes: a supercooler that cools the liquefied fluid to a temperature lower than a saturation temperature thereof and makes the liquefied fluid into a supercooled liquid; and a booster that boosts in pressure the liquefied fluid made into the supercooled liquid by the supercooler and supplies the liquefied fluid to the nozzle.

A method for rapidly filling a compressed gas storage tank with a moderated temperature rise using a Coanda nozzle to inject the feed gas into the tank and using the Coanda nozzle to direct the feed gas along the inner surface of the storage tank; entraining the stored gas with the feed gas that is flowing under the influence of the Coanda effect to flow along the inner surface of the gas storage tank; and transferring heat from the flowing gas to the external walls of the tank. Also, a compressed gas storage tank for rapid filling with a moderated temperature rise comprising: a gas storage tank and a Coanda nozzle capable of directing feed gas that is injected into the gas storage tank along the inner surface of the gas storage tank.

Method for leak testing a tank head, intended to be filled with a gas under high pressure and before it enters service, which head including at least two sealing devices, referred to as an inner and an outer sealing devices, which delimit there between an intermediate space into which opens a duct which communicates with the outside, such that: said test is carried out during the manufacture of the tank assembly, after fitting the tank head and before this tank is filled with high-pressure gas, pressurized gas is injected via the duct into the intermediate space between the two sealing devices, the gas injection is stopped at a given pressure, the value of said pressure is measured via said duct

Device and method for filling pressurized-gas tanks, comprising a fluid transfer circuit provided with an upstream end intended to be connected to a source of gas and at least two parallel downstream ends intended to be connected to distinct tanks that are to be filled, the transfer circuit comprising a temperature regulating member for regulating the temperature of the gas transferred from the source towards the downstream ends, the gas temperature regulating member being positioned in the transfer circuit upstream of the at least two downstream ends, which means to say that the gas temperature regulating member is common to the at least two downstream ends, characterized in that the at least two downstream ends of the circuit each comprise a respective control member for controlling the flow rate and/or the pressure of the transferred gas and configured to control the flow rate and/or the pressure in each of the downstream ends independently.

The present disclosure relates to devices and methods for the storage of material at cryogenic temperatures. Such devices may be useful for storing materials in the vapor space of a cryogenic dewar at a stable temperature and for preventing temperature excursions that may otherwise occur during refilling of a dewar with liquid cryogen. In some implementations, the devices may include a cryogen space holding liquid cryogen and gas, a separate storage space containing only gas, and a separate path for gas to leave the cryogen space during cryogen refills without passing through or substantially disturbing the temperature of the storage space. Some implementations further provide for passage of gas from the cryogen space to the storage space between cryogen refills to improve cryogen utilization efficiency.