| 摘要 |
PURPOSE:To uniformize temperature distribution of a heating medium through disturbance of the flow of a heating medium in a flat tube and to improve heat transmission efficiency by a method wherein a plurality of inner fins extending in an inclined state with respect to a longitudinal direction are formed at the interior of a flat tube. CONSTITUTION:A number of flat tubes 2 and corrugated fins 3 paralleling each other are alternately disposed between a pair of header pipes 1 positioned facing each other. The flat tubes 2 are interconnected through respective oblong holes 1a formed in the side wall of the head pipe 1 and end plates 4 are disposed to the outer end parts thereof. Further, the two end parts of the header pipe 1 are closed with respective caps 5 and the interior thereof is partitioned by a partition plate 6. In a so formed heat-exchanger, at the interior of the flat tube 2, inner fins 2a are arranged. The inner fins 2a are inclined at a given angle with the longitudinal direction of the flat tube 2 and extended in parallel. |
