Air conditioner and heat exchanger used therein

Details Air conditioner and heat exchanger used therein Air conditioner and heat exchanger used therein

1991-02-13

1993-01-26

Tanner, Harry B.

Refrigeration

Automatic control

Selective heating or cooling

62184, 62197, 62210, 62222, 622284, 62507, 165 29, F25B 1300, F25B 3904

Patent

active

051813920

ABSTRACT:
Disclosed is an air conditioner and, in particular, an air conditioner which is capable of blowing out warm air in heating mode. In the air conditioner of this invention, the condenser is thermally separated into an air-upstream-side and an air-downstream-side heat exchanger, and the heat exchange capacity of the air-downstream-side heat exchanger is adjusted, so that, under preset operating conditions, the entire refrigerant in the air-downstream-side heat exchanger can be kept in the superheated-gas phase, thus making it possible to blow out warm air having a temperature higher than the condensation temperature. Further, the refrigerant temperature at the outlet of the air-downstream-side heat exchanger is measured by a temperature sensor, and the revolving speed of the compressor, the revolving speed of the fan, etc., is so controlled that the temperature measured is kept at a level higher than the condensation temperature. Thus, under all operating conditions, the entire refrigerant in the air-downstream-side heat exchanger can be kept in the superheated gas phase, thereby making it possible to blow out warm air having a temperature higher than the condensation temperature.

REFERENCES:
patent: 2921448 (1960-01-01), Carraway
patent: 4266405 (1981-05-01), Trask

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