Air conditioner capable of controlling an amount of bypassed ref

Details Air conditioner capable of controlling an amount of bypassed ref Air conditioner capable of controlling an amount of bypassed ref

1998-12-23

2000-03-21

Bennett, Henry

Refrigeration

Automatic control

Refrigeration producer

621963, 62197, F25B 4100

Patent

active

060388730

ABSTRACT:
A multiple type air conditioner has an outdoor unit and multiple indoor units. The outdoor unit has a compressor and an outdoor heat exchanger. Each indoor unit has an indoor heat exchanger. A bypass pipe connects the outdoor heat exchanger to the compressor, and the opening degree of the bypass pipe is controlled by a bypass valve. The temperature of the refrigerant circulating from the indoor heat exchanger to the compressor is sensed by a sensor. As the temperature of the refrigerant sensed by the sensor increases, the opening degree of the bypass pipe decreases. Thus, the amount of refrigerant supplied to the indoor heat exchanger and that of refrigerant bypassed by the bypass pipe are controlled according to the temperature of the refrigerant, whereby the cooling efficiency is enhanced. Further, the difference in pressure between the refrigerant flowing out of the indoor heat exchanger and that flowing out of the bypass pipe is lowered, whereby noise is reduced.

REFERENCES:
patent: 4258553 (1981-03-01), Kelly et al.
patent: 4509586 (1985-04-01), Watabe
patent: 4658596 (1987-04-01), Kuwahara
patent: 4986084 (1991-01-01), Beckhusen
patent: 5148684 (1992-09-01), Leimbach et al.
patent: 5243827 (1993-09-01), Hagita et al.
patent: 5309728 (1994-05-01), Chae
patent: 5653119 (1997-08-01), Kimura et al.
patent: 5816055 (1998-10-01), Ohman

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