Air conditioning apparatus and method for air conditioning

Details Air conditioning apparatus and method for air conditioning Air conditioning apparatus and method for air conditioning

1995-12-27

1998-03-24

Tanner, Harry B.

Refrigeration

Processes

Defrosting or frost inhibiting

622387, 62278, 623245, F25B 4702

Patent

active

057299854

ABSTRACT:
An air conditioning apparatus for heating and cooling a room, which has a four-way valve to reverse the flow of a refrigerant, thereby switching the operation mode, heating or cooling, and which has a bypass line for bypassing an inside heat-exchanger, a control valve for controlling the flow ratio of the refrigerant passing through the bypass line and the inside heat-exchanger, and a refrigerant-heating element disposed in a line between the control valve and the compressor, thereby, in the defrosting mode, melting the frost formed on endothermic fins without cooling the room and without a liquid return to the suction side of the compressor.

REFERENCES:
patent: 4754614 (1988-07-01), Yuyama
patent: 4766734 (1988-08-01), Dudley
patent: 5099651 (1992-03-01), Fischer
patent: 5174123 (1992-12-01), Erickson
patent: 5228301 (1993-07-01), Sjoholm et al.

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