Ventilation – Having both inlet and outlet airways – With air pump means
Patent
1995-02-09
1996-10-15
Joyce, Harold
Ventilation
Having both inlet and outlet airways
With air pump means
454292, F24F 7007
Patent
active
055649807
ABSTRACT:
An air circulation system includes an inflow system which includes a tube enclosure or cowl suspended from a ceiling of a room or from a roof above the room. The tube enclosure or cowl is fitted with a ceiling fan. An air supply unit external to the room (e.g., outdoors) includes an in flow fan connected to air supply duct and a variable air volume box having an inlet connected to the air supply duct and an outlet connected to the interior of the tube enclosure or cowl. The system also includes an outflow system which includes an exhaust grill which may be either suspended from the ceiling or be fitted to the wall of the room. An exhaust riser duct is connected to the exhaust grill. An exhaust fan is connected to the outlet from the exhaust riser. The exhaust fan is operated in conjunction with the inflow fan to exhaust, via the outflow system, substantially all the volume of air inflowing through the air inflow system into the inside room through the outflow system. In this way the quality of air in the inside room is improved by impelling a selected volume of outdoor air downwardly into inside room air, circulating the outdoor air within the inside room and expelling the selected volume of used inside room air from the inside room, and by allowing the occupant of the inside room to adjust comfort conditions by varying air circulation and the selected volume of outdoor air.
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Joyce Harold
Sutton Ezra
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