公开(公告)号：US10330351B2

公开(公告)日：2019-06-25

申请号：US15545576

申请日：2016-01-21

Applicant: LG Electronics Inc.

Inventor： Kyeongyun Kim ,  Sunam Chae ,  Kyungseok Kim

IPC: F25B7/00 ,  F25B5/00 ,  F25B6/04 ,  F25B49/02 ,  F25B6/00

Abstract: A refrigerator includes a first compressor configured to compress first refrigerant, a first condenser configured to condense the compressed first refrigerant, a first expansion valve configured to reduce a temperature and a pressure of the condensed first refrigerant, a first evaporator configured to evaporate the first refrigerant having passed through the first expansion valve, a second compressor configured to compress second refrigerant, a second condenser configured to condense the compressed second refrigerant, a second expansion valve configured to reduce a temperature and a pressure of the condensed second refrigerant, a second evaporator configured to evaporate the second refrigerant having passed through the second expansion valve, a first heat exchanger arranged after and connected to the first expansion valve, and a second heat exchanger arranged after and connected to the second expansion valve. The first heat exchanger and the second heat exchanger are configured to exchange heat with each other.