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US 12,311,783 B2Granted
Method of venting a pressurized hydrogen gas from a hydrogen station testing device
AssigneeL'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
InventorsSamuel Trompezinski, Francis Eynard
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Abstract
The disclosure generally describes a method for venting pressurized hydrogen gas from a device for simulating a refueling operation for a fuel cell electric vehicle (FCEV).
Claims15
An apparatus for simulating a fuel cell electric vehicle (FCEV) refilling process, the apparatus comprising:
- a) at least two inlets operable to form a gas tight connection with a hydrogen refueling station dispensing nozzle;
- b) a set of at least two banks of gas cylinders, wherein each bank of gas cylinders is in fluid communication with only one of the at least two inlets, wherein the at least two banks of gas cylinders are configured to receive a gaseous hydrogen under pressure from the inlet with which said bank is in fluid communication;
- c) an outlet for each cylinder of each bank of cylinders, the outlets of all cylinders from all banks of cylinders being in fluid communication with a common vent stack;
- d) the vent stack configured and adapted to vent the pressurized hydrogen gas from the banks of cylinders;
- and
- e) a computer specifically programed to operate the apparatus to perform a hydrogen gas transfer from the hydrogen refueling station dispensing nozzle to each of the separate banks of gas cylinders,
- f) wherein the apparatus is further configured for and adapted to vent the pressurized hydrogen gas from the banks of cylinders at a substantially constant depressurization ramp rate.
4 more elements
Dependencies are inferred from the claim text.