Refrigeration – Gas controller or director – Cooled gas directed relative to cooled enclosure
Patent
1995-12-15
1997-01-21
Doerrler, William
Refrigeration
Gas controller or director
Cooled gas directed relative to cooled enclosure
622591, 454296, F25D 1704, F25D 2312, F24F 13068
Patent
active
055950680
ABSTRACT:
A ceiling mounted indoor unit (10) for an air conditioning system of the type that is generally recessed within a false or drop ceiling. The air conditioner has a fan (11) and heat exchanger (12) mounted within an enclosure (20). There is a primary fan suction inlet (31) and a fan discharge outlet (32) in the bottom wall (21) of the enclosure, and an auxiliary fan suction inlet (33) in a side wall (22) of the enclosure, so that at least some of the air entering the enclosure and passing through the heat exchanger will be drawn from the space between the false ceiling and the true ceiling. Air reenters the interceiling space through holes and gaps in the false ceiling. The auxiliary fan suction inlet reduces radiated noise and improves air flow distribution in the room served by the air conditioner.
REFERENCES:
patent: 2973703 (1961-03-01), Jack
patent: 3263438 (1966-08-01), Maudlin
patent: 3929285 (1975-12-01), Daugherty, Jr.
patent: 4076073 (1978-02-01), Yamamoto et al.
patent: 4090434 (1978-05-01), Krisko et al.
patent: 5495724 (1996-03-01), Koster
Carrier Corporation
Doerrler William
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