PURPOSE: To prevent fog, water droplets from flying out from a diffuser and to obtain stable cold air by providing a fog generating ultrasonic humidifier, and a blower, and mixing the fog and the air by a screw pump of a ventilation passage from a suction port to the blower.
CONSTITUTION: A blower 1, an ultrasonic humidifier 5 are operated, water is atomized, and fed out of the outlet of the humidifier 5. A screw pump 7 is operated by a motor 8, and the air is rotated in a direction flowing from an air suction port 4 toward a cold air diffuser 3. The air is passed in fine particles of foggy water, sucked into the pump 7, the air and the fog are forcibly mixed in the pump 7, completely evaporated up to the outlet of the pump 7, vaporization heat is removed to cool the air, which is, in turn, diffused from the diffuser 3 through the blower 1. Accordingly, the air can be further efficiently cooled by the evaporation heat, and the fog, water droplets are not flown out.
HOSHINO TERUMASA
UEDA KIYOSHI
SHIMIZU MASAKI
