| 摘要 |
A tank body 3 is formed in the shape of an elongated groove having an intermediate first slit 5 disposed at its middle portion in the longitudinal direction and having a pair of end first slits 5a disposed at its opposite ends. A reinforcement member 9 is fitted in the first slit 5 at the middle portion, and a pair of reinforcement side lids 11 are fitted correspondingly in the pair of end first slits 5a at opposite ends. The reinforcement member 9 and the reinforcement side lids 11 are formed with intermediate second slits 8 and end second slits 8a, respectively, which in cooperation serve to clamp the sidewalls 2 of the tank body 3. The opening of the tank body 3 is fitted to the groove-shaped tube plate 4 such that their connections are joined together by brazing or other joining means. <IMAGE> |
