Air-conditioning device

Heat exchange – With alarm – indicator – signal – register – recorder – test or... – Remotely controlled inspection means

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165 22, 165 42, 165 43, 236 46F, 236 91F, 236DIG19, 62158, 62131, F25B 2900

Patent

active

053928458

ABSTRACT:
An air-conditioning device capable of obtaining a suitable blow-out temperature through one passage from the initial period of change even when the air-conditioning operation in which either a first passage or a second passage is closed is changed into an operation condition in which it is opened. A feet mode in which the hot air is blown to the feet of a passenger from a second passage 7, is changed to a bilevel mode in which a first passage 6 that communicates with the upper half body of the passenger is switched from the closed state to the open state. During a predetermined period of time in the initial period following the change, the temperature blown from the first passage 6 is determined based upon a blow-out temperature of the second passage 7 and a desired blow-out temperature TAOV of the first passage 6. At the time of changing the mode, therefore, even when a first temperature sensor 25 is detecting a temperature near a desired blow-out temperature of the first passage 6 before the mode is changed, the air of the present temperature is not blown from the first passage 6 but, instead, a by-pass opening/closing damper 15 is opened, so that the air of a low temperature is blown from the first passage 6.

REFERENCES:
patent: 4274265 (1981-06-01), Okumura
patent: 4538760 (1985-09-01), Kobayashi
patent: 4899930 (1990-02-01), Kagohata et al.
patent: 5293928 (1994-03-01), Iida et al.
patent: 5311746 (1994-05-01), Dombrowski et al.

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