| 摘要 |
PROBLEM TO BE SOLVED: To reduce number of parts, size and weight in an integrated heat exchanger, in which a condensing unit and an evaporating unit are integrated with the same header tank. SOLUTION: A third tube 450 communicated with the header tank to conduct refrigerant to flow therethrough is arranged between the condensing unit 410 and the evaporating unit 420, so that the refrigerant passed through the condensing unit 410 is passed through the third tube 450 to reduce the pressure of the same, whereby the third tube 450 is functioned as a capillary tube (a pressure reducing means). On the other hand, a fourth partitioning plate 442 is arranged between the condensing unit 410 and the evaporating unit 420 in a second tank 440, while a choking hole 442a is formed on the partitioning plate 442 so that the pressure of the refrigerant passed through the condensing unit 410 is reduced by passing through the choking hole 442a, whereby the partitioning plate 442 is functioned as a nozzle (a pressure reducing means). According to this method, a refrigerant pipeline, necessitated conventionally, can be abolished.
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