| 摘要 |
In a heat exchanger comprising a tank (61) having a tank wall, and a partition plate (11) disposed within the tank (61) and sealed to an inner surface of the tank wall to form two chambers partitioned by the partition plate (11), the tank (61) is formed with a groove (614) in the inner surface of the tank (61) along an outer peripheral surface (11a) of the partition plate (11) to thereby form a space (616) which is closed by the outer peripheral surface (lla) and sealed from the two chambers, and a communication hole (618) is formed in the tank wall for communication between the space (616) and the outside of the tank (61), so as to enable the sealing test of the partition plate (11) through the communication hole (618). <IMAGE> |
