| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem in a conventional heat exchanger that it is necessary to suppress a rise of a pressure loss caused by an increase in flow velocity in a tube, and the multilayered stacking of flat tubes causes the interference of a header for a low-temperature fluid and a header for a high-temperature fluid connected to the flat tubes. SOLUTION: This heat exchanger comprises a flattened first flat tube having a through-hole for carrying the low-temperature fluid, a flattened second flat tube having a through-hole for carrying the high-temperature fluid, a first header connected to both ends of the first flat tube, and a second header connected to both ends of the second flat tube. The first flat tube and the second flat tube are laminated and contacted so that their longitudinal directions are orthogonal to each other. By to such a structure, the pressure loss can be reduced to prevent the interference between the headers. COPYRIGHT: (C)2006,JPO&NCIPI
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