| 摘要 |
PROBLEM TO BE SOLVED: To reduce channel resistances of pipes and, by extending length of the channel, improve heat exchange performance of a lamination heat exchanger having laminated long and thin plates each including a pair of first and second communication holes on both ends, respectively even if pipe attachment positions are restricted.SOLUTION: As elements 5 from an end to a halfway portion in a lamination direction, auxiliary-hole-added elements 10 are used. Each of these auxiliary-hole-added elements 10 includes a pair of auxiliary-hole-added plates 3a. In each of the auxiliary-hole-added plates 3a, surrounding of a first communication hole 1 is formed into a shallow cap shape, and an auxiliary communication hole 9 is provided to be adjacent to the first end portion communication hole 1 via a partition portion 16. |
