Ventilation – Having both inlet and outlet airways
Patent
1997-06-02
2000-05-23
Joyce, Harold
Ventilation
Having both inlet and outlet airways
429 71, F24F 700
Patent
active
060660422
ABSTRACT:
An enclosure (10) is provided for storing a battery (12) or other device that emits hydrogen or other potentially explosive, lighter-than-air gas during operation. The enclosure includes a floor (14), ceiling (16) and side walls (18) defining a substantially air-tight interior space, and a ventilation system for venting the low density gas from the space. The ventilation system includes a first passageway (20) extending through the side wall (18) into an upper end of the space and including an inlet (24) disposed in the interior space at the upper end and an outlet (26) disposed outside the space. Also, the system includes a second passageway (22, 42) that extends into a lower end of the space, terminating at an outlet disposed within the enclosure adjacent the upper end of the interior space. The second passageway (22, 42) includes an inlet (34) disposed outside the space and an outlet (36) disposed within the space adjacent the upper end such that low-density gas within the space can self-vent from the enclosure by passing out of the first passageway (20), drawing ambient air into the second passageway (22, 42). A generally horizontal section (30, 46) of the second passageway extends across the lower end of the interior space and includes a heat conductive surface so that heat is transferred between the second passageway (22, 42) and the interior space of the enclosure, equalizing the temperature of the gas in the second passageway with the gas in the lower end of the interior space to minimize thermally-induced gas flow through the passageways (20, 22, 42).
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patent: 2364144 (1944-12-01), Hunsaker
patent: 3271710 (1966-09-01), Leonard
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patent: 5660587 (1997-08-01), Baer
Champion Products Inc.
Joyce Harold
LandOfFree
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