| 摘要 |
<p>An expansion barrel (1) for absorbing contraction and expansion in a pipeline, comprising a multitude of relatively elastic rings (3) that extend around an axis, a multitude of relatively inelastic rings (5, 12) that extend around said axis, wherein the relatively elastic rings (3) and the relatively inelastic rings (5, 12) are arranged in alternating, abutting relation, and at least two sets of relatively inelastic wires (4) attached to the outer sides of the relatively elastic rings (3), wherein the relatively inelastic rings (5, 12) are provided over the relatively inelastic wires (4) between the relatively elastic rings (3), wherein the wires (4) of both sets extend parallel to each other in opposed helices over at least substantially the entire length of the expansion barrel.</p> |
