| 摘要 |
A heat exchanger includes a plurality of integrally assembled heat-exchanger cores each comprising a pair of header pipes, a plurality of flat heat-transfer tubes and a plurality of fins. A heat medium flows from an inlet tube connected to one of the header pipes to an outlet tube connected to another one of the header pipes through the plurality of heat-exchanger cores communicating with one another. The heat-transfer area of the heat exchanger can be increased without increasing the diameters of its header pipes, to thereby increase the total heat-exchange ability of the heat exchanger.
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