| 摘要 |
<P>PROBLEM TO BE SOLVED: To suppress a pressure loss of a refrigerant flowing into a header from connecting tubes connected to heat transfer tubes of a heat exchanger. <P>SOLUTION: This heat exchanging device includes the heat exchanger 15 having the plurality of heat transfer tubes 24 where the refrigerant circulates, and functioning as an evaporator, the plurality of connecting tubes 27 connected to end sections at a refrigerant discharge side of the heat transfer tubes 24, respectively, and the header 28 connected to ends at refrigerant discharge sides of the plurality of connecting tubes 27, and joining the refrigerants discharged from the connecting tubes 27. At least some of the connecting tubes 27 are constituted of flow channel-expanded connecting tubes 27 where a flow channel cross-sectional area at the header 28 side is formed larger than a flow channel cross-sectional area at a heat transfer tube 24 side. <P>COPYRIGHT: (C)2012,JPO&INPIT |
