| 摘要 |
There is disclosed a microtube type heat exchanger which can suppress a pressure loss in a refrigerant inlet pipe, suitably distribute a refrigerant and further enlarge a heat exchange area. In an evaporator 4 (the heat exchanger), both ends of a plurality of microtubes 13 are communicated with each other by a pair of distributors 11 and 12, and carbon dioxide is used as a refrigerant, the heat exchanger comprises a refrigerant inlet pipe 17 connected to the distributor 11, and the distributor 11 is allowed to communicate with the refrigerant inlet pipe 17 by a plurality of passages 21A. |
