VENTILATION FAN

PURPOSE:To prevent the outside air from flowing into the interior of a room through gaps of a room, by making flow volume of suction air larger than that of discharge air. CONSTITUTION:A suction air fan 12 and a discharge fan 13 are identical. For example, the space between the front on the indoor s...

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Bibliographic Details
Main Authors OGATA TOSHIICHI, ONO NOBUYUKI
Format Patent
LanguageEnglish
Published 23.02.1987
Subjects
AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING
BLASTING
HEATING
LIGHTING
MECHANICAL ENGINEERING
RANGES
VENTILATING
WEAPONS
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Summary:PURPOSE:To prevent the outside air from flowing into the interior of a room through gaps of a room, by making flow volume of suction air larger than that of discharge air. CONSTITUTION:A suction air fan 12 and a discharge fan 13 are identical. For example, the space between the front on the indoor side of an outer casing 2 and a partition plate 17 is made narrow or the width of holes, which are a great number of slit-shaped holes constituting a suction port 16 for indoor air, is made small. The arrangement is such that fluid resistance of a discharge passage 20 is larger than that of a suction passage 19 including that of a filter 18 so that flow volume of suction air is larger than that of discharge air. During the ventilating operation with such arrangement as described above, since the flow volume of suction air is made larger than that of discharge air, when there are gaps in the wall etc. of a room, air in the room A is forced to flow out through the gaps to the outside of the room, so that the outside air is prevented from flowing into the inside of the room A.
Bibliography:Application Number: JP19850181333