| 摘要 |
<P>PROBLEM TO BE SOLVED: To bring a fin into contact with a heat transfer tube without problems while securing a water conveyance function of condensation. <P>SOLUTION: A first fin part 51 and a second fin part 52 in fins 50a, 50b are arranged so that a plate-thickness direction intersects with a direction of air flow F and both parts are arranged to be mutually adjacent. Each of the first fin part 51 and the second fin part 52 includes heat transfer parts 51a, 52a, upper water conveyance parts 51b, 52b, and lower water conveyance parts 51c, 52c. The heat transfer parts 51a, 52a perform heat exchange with the air. The upper water conveyance parts 51b, 52b are upwardly projected from the heat transfer parts 51a, 52a, while the lower water conveyance parts 51c, 52c are downwardly projected. An amount of projection of the upper water conveyance part 51b of the first fin part 51 differs from that of projection of the upper water conveyance part 52b of the second fin part 52, but equals the amount of projection of the lower water conveyance part 52c. The amount of projection of the lower water conveyance part 51c of the first fin part 51 differs from that of projection of the lower water conveyance part 52c of the second fin part 52 but equals the amount of projection of the upper water conveyance part 52b. <P>COPYRIGHT: (C)2013,JPO&INPIT |
