Safety warning and shutdown device and method for hydrogen...

Details Safety warning and shutdown device and method for hydrogen... Safety warning and shutdown device and method for hydrogen...

2011-01-11

2011-01-11

Previl, Daniel (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S450200, C340S447000

Reexamination Certificate

active

07868775

ABSTRACT:
The present disclosure provides an alternative, cost-effective safety feature for on-board hydrogen storage containers incorporating a fill cycle sensor with a driver warning and shutdown system. The system monitors the number of times a hydrogen container is filled, and then takes action at a predetermined termination point. A controller monitors each time the hydrogen container is filled above 90% of the rated pressure or mass. Once the predetermined termination point of fill cycles is reached, the disclosed device/method will either disable the valve or refueling mechanism such that fuel supply to the vehicle is shutoff and the container cannot be filled again, essentially assuring the end of the life of the container.

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