Refrigeration – Automatic control – Refrigeration producer
Patent
1983-04-28
1985-05-21
Tanner, Harry B.
Refrigeration
Automatic control
Refrigeration producer
62230, F25B 100
Patent
active
045178127
ABSTRACT:
A heat-pump type air conditioning apparatus comprising a compressor, a condenser, a throttle member, and an evaporator, which constitute a refrigerant circulation circuit, and an unloading circuit is connected to the compressor to carry out a load reduction control. The air conditioning apparatus further comprises a detector for detecting load condition applied on the compressor and generating a signal representing the detected load condition, and a detector for detecting a condition of a power source for driving the compressor and generating a signal relating to the detected condition of the power source. A control unit is operatively connected to the detectors for controlling the switching of the air conditioning apparatus from a normal, full-capacity operation to a controlled, reduced capacity operation or vice versa in accordance with the signals regarding the detected load and the detected condition of the power source.
REFERENCES:
patent: 2412981 (1946-12-01), Harrold
patent: 3204423 (1965-09-01), Resh, Jr.
patent: 3499297 (1970-03-01), Ruff et al.
patent: 3522711 (1970-08-01), Shaughnessy
Tanner Harry B.
Tokyo Shibaura Denki Kabushiki Kaisha
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