Passive ventilation device and method

Details Passive ventilation device and method Passive ventilation device and method

1995-09-11

1997-02-18

Joyce, Harold

Ventilation

Having outlet airway

424 71, H01M 212

Patent

active

056036566

ABSTRACT:
A passive ventilation device and method for releasing hydrogen from an enclosure (3) housing a battery (9). The enclosure has an outer shell (11) and an inner insulating layer (13) that includes a gas permeable panel (7). The panel is disposed within the chamber adjacent one of the sidewalls of the enclosure. The sidewall has an inlet opening (34) and an exhaust opening (36) in communication with a ventilation space (32) for providing an upward air flow through the ventilation space to draw hydrogen through the gas permeable panel into the ventilation space. The upward air flow can be powered by the low density hydrogen and/or by heating the air within the ventilation space to a temperature greater than the ambient temperature.

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