F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
F16L 15/06 (2006.01)
Patent
CA 2342715
The invention concerns a threaded connection of two metal tubes comprising a male element at the end of a first tube and a female element at the end of a second tube, the male element including an external male thread, the female element including an internal female thread, the male and female threads being screwed into each other, at least one of the male or female threads comprises a groove (61, 62) produced in the thread (31, 32) and emerging either on the engagement flank (33, 34) or at the thread top (39, 38) or even astride between the engagement flank and the thread top. The groove (61) is arranged in the thread (31) so as either to increase the flexibility of the thread part (63, 64) subjected to contact under pressure with the conjugate thread (32) or to reduce the contact surfaces or further still to act on both features simultaneously.
Sur un assemblage fileté de deux tubes métalliques comportant un élément mâle en extrémité d'un premier tube et un élément femelle en extrémité d'un second tube, l'élément mâle comprenant un filetage mâle extérieur, l'élément femelle comprenant nn filetage femelle intérieur, les filetages mâle et femelle étant vissés l'un dans l'autre, au moins un des filetages mâle ou femelle comporte une gorge (61, 62) réalisée dans le filet (31, 32) et débouchant ou sur le flanc d'engagement (33, 34) ou sur le sommet (39, 38) de filet ou encore à cheval entre le flanc d'engagement et le sommet de filet. La gorge (61) est disposée dans le filet (31) de manière ou à augmenter la flexibilité de la partie de filet (63, 65) soumise au contact sous pression avec le filet conjugué (32) ou à diminuer les surfaces de contact ou encore à agir sur ces deux caractéristiques à la fois.
Noel Thierry
Varenne Emmanuel
Robic
Sumitomo Metal Industries Ltd.
Vallourec Mannesmann Oil & Gas France
LandOfFree
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