Refrigeration – Automatic control – Preventing – removing or handling atmospheric condensate
Patent
1983-12-30
1985-05-28
Tanner, Harry
Refrigeration
Automatic control
Preventing, removing or handling atmospheric condensate
62160, 621963, 62278, 623245, F25D 2106, F25B 1300
Patent
active
045192146
ABSTRACT:
An air conditioner includes a compressor, four-way valve, outdoor side heat exchanger, expansion valve and indoor side heating exchanger, which components are sequentially connected via coolant tubes, thereby constructing a refrigeration cycle circuit which is capable of performing cooling (defrosting) and heating operations. A switching control valve is connected between the suction side of the compressor and the four-way valve. The control valve is opened when abnormal high pressure is produced in the refrigeration cycle and when the defrosting operation is performed. A first branch passage is connected at its one end between the four-way valve and indoor side heat exchanger, and at the other end to the control valve. During the heating operation, when the control valve is opened, the first branch passage forms a releasing circuit, thereby releasing the abnormal high pressure to the low pressure side of the refrigeration cycle. A second branch passage is connected at its one end between the outdoor side heat exchanger and the expansion valve and at the other end to the control valve. During the defrosting operation, the second branch passage forms a short-circuit which sequentially passes the compressor, four-way valve, outdoor side heat exchanger and control valve.
REFERENCES:
patent: 2968167 (1961-01-01), Raney
patent: 3444699 (1969-05-01), Harnish
patent: 4137726 (1979-02-01), Watada
Moriyama Kazuhiro
Orita Susumu
Sano Tetsuo
Yamazaki Masaya
Tanner Harry
Tokyo Shibaura Denki Kabushiki Kaisha
LandOfFree
Air conditioner does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Air conditioner, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Air conditioner will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-862445