Refrigeration system having liquefied refrigerant control

Details Refrigeration system having liquefied refrigerant control Refrigeration system having liquefied refrigerant control

1990-10-17

1992-04-21

Makay, Albert J.

Refrigeration

Means producing shaped or modified congealed product

Thawing means

621964, 62233, F25C 510

Patent

active

051056321

ABSTRACT:
In a refrigeration system in the form of a refrigerant circulation circuit, a first valve is disposed within a bypass circuit of the circulation circuit for being opened to supply therethrough the hot gas outflowing from a compressor directly into an evaporator. A second valve is interposed between a condenser and the evaporator for being closed to prohibit flow of refrigerant from the condenser into the evaporator therethrough. A first relay is energized to open the second valve when a first detecting element detects finish in cooling of medium caused by thermal exchange with the evaporator. A second relay is energized to close the first valve when a second detecting element detects finish in vaporization of liquefied refrigerant accumulated within the evaporator during cooling of the medium.

REFERENCES:
patent: 3332251 (1967-07-01), Watkins
patent: 3453838 (1969-07-01), Decker et al.
patent: 3599440 (1971-08-01), Melion
patent: 4899552 (1990-02-01), Minari

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