Patent ID: 11885512
Assignee: MITSUBISHI ELECTRIC CORPORATION
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F | IPC F

Claim 7:
8. The heat exchanger of claim 7, wherein
in a case where the heat exchanger functions as an evaporator, refrigerant having flowed into the third header connected to the lower end of the third heat transfer pipe group passes through the third heat transfer pipe group and flows into each of the positive-side header and the negative-side header of the second header connected to the upper end,
refrigerant having flowed into the third header connected to the lower end of the fourth heat transfer pipe group passes through the fourth heat transfer pipe group and flows into the positive-side header and the negative-side header of the second header connected to the upper end,
flows of the refrigerant having flowed into the positive-side headers at the respective upper ends of the third heat transfer pipe group and the fourth heat transfer pipe group merge after flowing out in a positive direction of the second orientation and flow in a negative direction of the second orientation into the second header connected to the lower end of the first heat transfer pipe group, and
flows of the refrigerant having flowed into the negative-side headers at the respective upper ends of the third heat transfer pipe group and the fourth heat transfer pipe group merge after flowing out in the negative direction of the second orientation and flow in the positive direction of the second orientation into the second header connected to the lower end of the second heat transfer pipe group.