Patent ID: 9568219
Date: 2017-02-14
CPC Classifications: F25B,F25D

Claim:
1. A cooling system for use within a refrigerator or freezer appliance, the cooling system comprising; a primary cooling loop; a compressor for a refrigerant; a condenser coupled to said compressor; a first evaporator coupled to said condenser; a secondary cooling loop comprising; a bypass valve between the condenser and the first evaporator; a container for holding a liquid thermal mass disposed within a cabinet; a sub-cooler thermally coupled between the bypass valve and the condenser; a second evaporator in communication with the bypass valve and the container; a secondary heat exchanger in thermal communication with said second evaporator; conduits coupling said container in fluid communication with said secondary heat exchanger for the transmission of said liquid thermal mass; a pump coupled to said conduits for circulating said liquid thermal mass from said container to said secondary heat exchanger; and a multi-way valve in communication with the secondary heat exchanger, the pump and the sub-cooler; wherein in one position of the multi-way valve a first circuit is created between the secondary heat exchanger and the container, and in a second position of the multi-way valve a second circuit is created between the container and the sub-cooler; and wherein the container is in direct communication with the sub-cooler through the pump and the multi-way valve.