Refrigerating system and operating method thereof

Details Refrigerating system and operating method thereof Refrigerating system and operating method thereof

1995-11-27

1998-01-20

Wayner, William E.

Refrigeration

Processes

Defrosting or frost inhibiting

62174, 62502, F25B 4100, F25B 100

Patent

active

057090904

ABSTRACT:
A refrigerating system having a refrigerating cycle constructed by connecting an accumulator, a refrigerant compressor, a four-way valve, an outdoor unit heat exchanger, an outdoor unit expander, a receiver, an indoor unit expander and an indoor unit heat exchanger sequentially by pipes. Normally, excessive refrigerant is stored in the receiver and when it becomes necessary to raise a ratio of lower boiling point refrigerants, a flow amount of the refrigerant is decreased by restricting the outdoor unit expander during the cooling operation or by restricting the indoor unit expander during the heating operation to move the excessive refrigerant within the receiver to the accumulator. Thereby, the composition of the refrigerant circulating within the refrigerating system using non-azeotrophic refrigerant mixtures may be changed without using a complicated system structure or control method thereof and the capacity of the refrigerating cycle may be changed.

REFERENCES:
patent: 4912933 (1990-04-01), Renken
patent: 5353604 (1994-10-01), Oguni et al.

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