Patent attributes
A hydrogen fuel dispenser includes a pre-cooling circuit, a hydrogen fuel storage for storing hydrogen fuel, a nozzle for dispensing hydrogen fuel to a receptacle, and a fueling line connecting the hydrogen fuel storage to the nozzle for communicating hydrogen fuel from the hydrogen fuel storage to the nozzle. The pre-cooling circuit is provided to cool hydrogen fuel in the fueling line, and includes a pre-cooling line connected to the fueling line downstream from the hydrogen fuel storage, and a flow-path selector provided at a connection between the fueling line and the pre-cooling line. The flow-path selector selectively: blocks hydrogen fuel flow between the fueling line and the pre-cooling line while opening hydrogen fuel flow between the fueling line and a nozzle line of the nozzle; and opens hydrogen fuel flow between the fueling line and the pre-cooling line.
