| 摘要 |
PURPOSE:To lengthen the life of the titled receptor, and to miniaturize its size, by providing U-shaped support fitting to fins of cooling pipes arranged in parallel, in order to restrain adjacent fins to each other, as well as to form a heat receiving surface by combining two and more heat receptor plates with each other. CONSTITUTION:A metal support fitting 6 is fitted to the back of heat receiving surfaces of cooling pipes 10 in order to prevent slippage occurring in a gap between cooling pipes 10, as well as to form a heat receiving surface by combining more than two heat receiving plates 8 with each other. The fitting 6 restrains a gap between adjacent fins only, and axial displacement is not at all bound. The displacement between fins farther than the adjacent ones is not directly restrained. Thermal expansion is restrained by fitting the support fitting 6 to the fins, so that thermal stress is not increased. On the other hand, transformation to the other directions than the axial direction of the pipe is very small. The changes in the pitch and in the gap in the arrangement of pipes caused by accumulation of slight thermal transformation can be prevented by properly setting a play between the metal support fitting 6 and the cooling pipes 10, although transformation by one thermal cycle is not restrained. |
