SELF ACTIVATING SEAL ASSEMBLY BACKUP

Provided is a seal assembly. The seal assembly, in one aspect, includes a first member, the first member formed of a first material, and a second member overlapping with the first member, the second member formed of a second material, the first and second members defining an overlapping fluid leakag...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: ELDHO, Shanu Thottungal
Format: Patent
Sprache:eng ; fre
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Beschreibung
Zusammenfassung:Provided is a seal assembly. The seal assembly, in one aspect, includes a first member, the first member formed of a first material, and a second member overlapping with the first member, the second member formed of a second material, the first and second members defining an overlapping fluid leakage path. The seal assembly according to this aspect further includes a primary seal positioned in the overlapping fluid leakage path, the primary seal configured to prevent fluid from passing from a first side of the overlapping fluid leakage path to a second side of the overlapping fluid leakage path. The seal assembly according to this aspect additionally includes an expandable metal backup seal positioned in the second side of the overlapping fluid leakage path, the expandable metal backup seal including a metal configured to expand in response to hydrolysis. L'invention concerne un ensemble joint d'étanchéité. L'ensemble joint d'étanchéité comprend, selon un aspect, un premier élément, le premier élément étant constitué d'un premier matériau, et un second élément chevauchant le premier élément, le second élément étant constitué d'un second matériau, les premier et second éléments délimitant un trajet de fuite de fluide se chevauchant. L'ensemble joint d'étanchéité selon cet aspect comprend en outre un joint primaire positionné dans le trajet de fuite de fluide se chevauchant, le joint primaire étant conçu pour empêcher le fluide de passer d'un premier côté du trajet de fuite de fluide se chevauchant à un second côté du trajet de fuite de fluide se chevauchant. L'ensemble joint d'étanchéité selon cet aspect comprend en outre un joint de renfort métallique expansible positionné dans le second côté du trajet de fuite de fluide se chevauchant, le joint de renfort métallique expansible comprenant un métal conçu pour se dilater en réponse à l'hydrolyse.