REFRIGERATOR Russian patent published in 2009 - IPC F25B7/00 F25B41/00 F25B41/04 

FIELD: heating.

SUBSTANCE: invention relates to refrigerators. The refrigerator comprises refrigeration circuit filled with refrigerating agent, and evaporation heat-transfer circuit filled with working body representing fluid and its vapours. The heat-transfer circuit comprises condensation section that features thermal contact with refrigerating circuit evaporator and evaporation section communicating with condensation section and having thermal contact with the device whereto cold is fed. The heat-transfer circuit comprises also the accumulative-displacing section communicating with evaporation and condensation section, furnished with intermittent-heating-and-cooling device. Intermittent heating of the accumulative-displacing section is made to the temperature that exceeds that of the other sections incorporated with heat-transfer circuit. Intermittent cooling of aforesaid section is effected to the temperature that does not exceed that of the other sections of heat-transfer circuit. Valves and pipes allow one-way flow of the working body directed from evaporation section to condensation section, and, further on, to accumulative-displacing section, and, finally, back to evaporation section.

EFFECT: improved performance of refrigerator cascade circuit using no compressor or pump.

13 cl, 1 dwg