Air conditioner

Details Air conditioner Air conditioner

1994-03-30

1996-03-19

Tanner, Harry B.

Refrigeration

Processes

Employing diverse materials or particular material in...

62184, 62186, 62174, 62502, F25B 100

Patent

active

054995086

ABSTRACT:
An air conditioner employs a refrigerating cycle in which a non-azeotropic mixture of high and low boiling coolants is sealed. The ratio between the high and low boiling coolants of the coolant mixture changes according to a change in the opening of an electric expansion valve 7. A level sensor 19 is arranged in an accumulator 17 that accumulates the liquid phase of the coolant mixture. A value detected by the level sensor is used to calculate the ratio between the high and low boiling coolants actually circulating in the refrigerating cycle. According to the opening of the valve 7 or the ratio between the actual quantities of the high and low boiling coolants, basic operation parameters such as the operation frequency of a compressor 1 are changed. This results in stabilizing and optimizing the operation of the refrigerating cycle even if a cycle temperature or pressure is changed due to a change in the ratio between the high and low boiling coolants of the coolant mixture.

REFERENCES:
patent: 4679403 (1987-07-01), Yoshida et al.
patent: 4722195 (1988-02-01), Suzuki et al.
patent: 5058390 (1991-10-01), Sindermann et al.
patent: 5186012 (1993-02-01), Czachorski et al.

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