| 摘要 |
<p>The radiator has tubular elements such as horizontal heating tubes, vertical hot heat transfer fluid collector and vertical cold heat transfer fluid collector (3), where one of the elements is closed at its end by a screw cap (7). An annular groove (9) is predominantly arranged in an element's inner wall at the end of an internal thread (11). The groove receives an O-ring joint (8) whose thickness is larger than depth of the groove at rest position. The joint is entirely housed in the groove under constraints to permit a screw head (14) to be locked on an end surface (13) of the collector (3).</p> |
