| 摘要 |
PROBLEM TO BE SOLVED: To provide an expansion joint structure capable of reducing the oscillation of a free-end part by increasing the rigidity of the free edge of a flow liner.SOLUTION: An expansion joint structure 1 comprises: an expansion joint 9 for connecting an upstream-side exhaust gas pipe 5 and a downstream-side exhaust gas pipe 7, which are arranged in an axial direction at spacings, such that the spacings can be adjusted; and a substantially cylindrical flow liner 23 whose upstream-side end part is fixed to the internal surface of the upstream side exhaust gas pipe 5, the flow liner 23 extending on the downstream side so as to cover the expansion joint 9 and arranged in a radial direction with spacings. Outer ribs are provided for increasing the rigidity of the flow liner 23, the outer ribs being composed of a plurality of plates arranged on the surface of the flow liner 23 on the side of the expansion joint 9 in a circumferential direction with spacings, each plate protruding in a radial direction and mounted so as to extend in an axial direction. |
