Refrigerating apparatus

Details Refrigerating apparatus Refrigerating apparatus

1987-06-12

1988-10-25

Tanner, Harry B.

Refrigeration

Automatic control

Refrigeration producer

62278, F25B 500

Patent

active

047794259

ABSTRACT:
A refrigerating apparatus for individually refrigerating a plurality of chambers by a single compressor is disclosed. The refrigerating apparatus includes a plurality of evaporators which are disposed one in each of the respective chambers, and are coupled with each other in parallel. An electromagnetic valve is coupled to each evaporator in series to control the flow of refrigerant, and an expansion valve such as a capillary tube also is coupled to each evaporator in series, to thereby form a plurality of electromagnetic valve-expansion valve-evaporator combinations. An additional heat exchanger is disposed in the refrigerating circuit in parallel with the parallel electromagnetic valve-expansion valve-evaporator combinations through a valve device. The valve device allows adjustment of the flow of refrigerant to the evaporators and the additional heat exchanger to maintain the chambers at their desired temperature without varying the capacity of the compressor. The additional heat exchanger may be defrosted during operation of the refrigerating circuit by serving as a condenser.

REFERENCES:
patent: 4691527 (1987-09-01), Ikeda

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