| 摘要 |
A stacked plate type heat exchanger using a trilaminar plate having a sufficient corrosion resistance is provided to enhance reliability by forming a stacked plate type coil cooler having a sufficient corrosion resistance and a brazing junction. A core part includes a stacked structure of a first plate(1) and a second plate(2). The first and second plates core layers(31,34) include sacrificial layers(32,36) formed at one side of each of the core layers, brazing material layers(33,35) formed at the other side of each of the core layers, a first tapering part(44) extended in an opening side, a second tapering part(54) formed at an external rim of the second plate, and a first bent part(45). The first bent part is formed by bending an external rim of the first plate. A first path(21) for first medium is formed between the first plate and the sacrificial layers of the second plate. A second path(22) for second medium is formed between the brazing material layers of the first and second plates. |
