| 摘要 |
PURPOSE:To provide a heat exchanger in which a heat transfer efficiency at the air side is improved in an engagement type heat exchanger. CONSTITUTION:When a refrigerant tube 5 is manufactured, a single tube is formed in a serpentine state in which a straight tube part 5a and a bent tube part 5b are continued and so twisted that the parts 5a are arranged in multiple rows state and arranged in a zigzag state. According to this, after a heat exchanger is assembled, the parts 5a protrude to the flow of the air in the zigzag state, and hence the air is brought substantially uniformly into contact with all the parts 5a, thereby improving a heat transfer efficiency at the air side of the exchanger. |
