Seal for filler neck closure assembly

B - Operations – Transporting – 65 – B

Patent

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Details

B65B 3/18 (2006.01) B60K 15/04 (2006.01) B65B 3/26 (2006.01) B65B 31/00 (2006.01) B65D 51/16 (2006.01) B60K 15/035 (2006.01)

Patent

CA 2280160

A filler neck closure assembly (20) includes a housing (74) formed to include a passage (77), a tank pressure control assembly (84) in passage (77), and an outer shell (44) coupled to housing (74). Closure assembly (20) includes a sleeve (185) that reinforces housing (74) and shields tank pressure control assembly (84). Closure assembly (20) also includes a sealing gasket (192) and a foam ring (210) between housing (74) and a side wall (46) of outer shell (44) to prevent leakage of fuel vapor therebetween. Outer shell (44) includes frangible tabs (260) that break away from the rest of outer shell (44) in a controlled manner when outer shell (44) is subjected to an impact during a vehicle crash. Outer shell (44) is formed to include a fluid drain (421) and closure assembly (20) includes a float (425) that closes fluid drain (421) and that moves to open fluid drain (421) to allow accumulated fluid to drain out of outer shell (44).

La présente invention concerne un ensemble fermeture/goulot de remplissage (20) qui comporte un boîtier (74) conçu pour former une cavité (77), un ensemble régulateur (84) de la pression du réservoir, situé dans la cavité (77), et une coquille externe (44) reliée au boîtier (74). L'ensemble fermeture (20) comporte un manchon (185) qui renforce le boîtier (74) et protège l'ensemble régulateur (84). L'ensemble fermeture (20) comporte également un joint d'étanchéité statique (192) et un anneau (210) en mousse, situés entre le boîtier (74) et une paroi latérale (46) de la coquille (44) externe, dans le but d'empêcher les fuites de vapeurs de carburant entre ces deux éléments. La coquille externe (44) comporte des pattes (260) frangibles qui se séparent de manière régulée du reste de la coquille externe (44) lorsque la coquille externe (44) est soumise à un impact lors d'un accident de voiture. La coquille (44) externe est conçue pour contenir un drain (421) de fluides. L'ensemble fermeture (20) comporte un flotteur (425) qui ferme le drain (421) et se déplace pour l'ouvrir en vue de permettre l'évacuation, hors de la coquille (44) externe, du fluide accumulé.

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