Air conditioner

Details Air conditioner Air conditioner

1993-10-14

1994-12-06

Wayner, William E.

Refrigeration

Automatic control

Time or program actuator

621963, 62175, 62510, F25B 700, F25B 110

Patent

active

053699580

ABSTRACT:
An air conditioner in which, when a first compressor is being operated and a second compressor is being stopped, liquid refrigerant does not flow into the second compressor even in a state of wet vapor suction, a decrease in lubricating oil in the second compressor or a decline in its concentration are not experienced, and breakage of the second compressor does not occur owing to faulty lubrication when the second compressor is started. In addition, to obtain an air conditioner which does not lapse into a wasteful shortage of cooling and heating capabilities when the air conditioner is not in the state of wet vapor suction, by reliably detecting the presence or absence of the state of wet vapor suction. In the air conditioner, the first compressor and the second compressor are connected together by an equalizing pipe. A bypass passage which connects together a discharge pipe and a suction pipe of the second compressor is provided.

REFERENCES:
patent: 4411141 (1983-10-01), Hara
patent: 4586351 (1986-05-01), Igarashi et al.
patent: 5094598 (1992-03-01), Amata et al.
patent: 5236311 (1993-08-01), Lindstrom
patent: 5245837 (1993-09-01), Kitamoto

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