| 摘要 |
<p>Device for locking tubes on a collector plate of a heat exchanger in which the collector plate has collars 6 delimiting tube passages inside which are placed sleeves 7 having, at their ends, retaining parts 9, tubes 1 being inserted into the sleeves 7, characterised by at least one stop-piece 11 extending above the retaining part 9 of at least one tube 1a and having an edge 11a bearing on the collector plate 3 and by a tube end 11 which is swelled or deformed in another manner and extends above the stop-piece 11. <IMAGE></p> |
