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Pub. No.:    WO/1981/001038    International Application No.:    PCT/US1979/000841
Publication Date: 16.04.1981 International Filing Date: 15.10.1979
B62D 55/088 (2006.01), F16J 15/34 (2006.01)
Priority Data:
US79/00841 15.10.1979 WO
Abstract: front page image
(EN)A stabilized seal structure (24, 124, 224) for use in a seal space (20, 120, 220) defined by a first wall (17), a second wall (18) confronting the first wall and variably spaced therefrom, a third wall (19) extending across the seal space between the first and second walls, and a fourth wall (16) extending across the space oppositely of the third wall (19). The seal structure includes a seal member (25, 125, 225) defining a first leg (26, 126, 226), a second leg (27, 127, 227) having a sealing portion (34, 134, 234) engaging the second wall, and a bight portion (28, 128, 228) extending adjacent the fourth wall. The legs and bight portion cooperatively define a load member space (29, 129, 229) receiving a load ring (30, 130, 230). At least one of the bight portion of the seal ring and the fourth wall is provided with an annular recess (31, 13, 231) facing the other element. The recess permits compression of the seal ring while effectively maintaining the effective volume of the seal ring space during initial compression of the seal ring by accommodating the portion of the bight of the seal ring overlying the recess during such initial compression. Resultingly, the sealing portion of the seal ring is maintained in effectively fixed relationship to the confronting wall during such initial compression, thereby providing improved stability in the sealing functioning of the seal structure.
(FR)Une structure de joint stabilisee (24, 124, 224) utilisee dans un espace de joint (20, 120, 220) defini par une premiere paroi (17), une seconde paroi (18) faisant face a la premiere paroi et espacee de celle-ci de maniere variable, une troisieme paroi (19) s'etendant en travers de l'espace de joint entre la premiere et la seconde parois, et une quatrieme paroi (16) s'etendant en travers de l'espace de maniere opposee a la troisieme paroi (19). La structure de joint comprend un organe de joint (25, 125, 225) definissant un premier jambage (26, 126, 226), un second jambage (27, 127, 227) ayant une portion d'etancheite (34, 134, 234) engageant la seconde paroi, et une portion en forme d'anse (28, 128, 228) s'etendant de facon adjacente a la quatrieme paroi. Les jambages et la portion d'anse definissent en cooperation un espace d'un organe de charge (29, 129, 229) recevant une bague de charge (30, 130, 230). Au moins une portion d'anse de la bague de joints et de la quatrieme paroi est pourvue d'un evidement annulaire (31, 131, 231) en regard de l'autre element. L'evidement permet la compression de la bague de joint tout en maintenant de maniere effective le volume de travail de l'espace de la bague de joint pendant la compression initiale de celle-ci par logement de la portion de l'anse de la bague de joint recouvrant l'evidement pendant cette compression initiale. Il en resulte que la portion d'etancheite de la bague de joint est maintenue en relation fixe par rapport a la paroi qui lui fait face pendant cette compression initiale, ameliorant ainsi la stabilite de la structure du joint d'etancheite.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)