Closure assembly for a tank filler neck

B - Operations – Transporting – 60 – K

Patent

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Details

B60K 15/05 (2006.01) B67D 7/04 (2010.01) B60K 15/04 (2006.01)

Patent

CA 2218952

A filler neck closure assembly (10) is provided for a vehicle fuel tank filler neck (12). The filler neck closure assembly (10) includes a housing (35) configured to mount in the filler neck (12) and formed to include a sealing surface (124). A pressure-relief valve (40) is positioned to lie in the housing (35). The pressure-relief valve (40) includes a nozzle-receiving portion (133) and a sealing portion (135). The nozzle-receiving portion (133) is formed to include a nozzle-receiving opening (154) that receives a pump nozzle (24) during refueling of the fuel tank (14). The sealing portion (135) is movable relative to the housing (35) between a closure-sealing position sealingly engaging the sealing surface (124) and a pressure-relief position away from the sealing surface (124) to define an opening therebetween to vent fuel vapor (238) from the fuel tank (14) when tank pressure exceeds a predetermined maximum pressure. The nozzle-receiving portion (133) is configured to move with the sealing portion (135).

Fermeture de col de remplissage (10) à utiliser sur un col de remplissage de réservoir de carburant d'un véhicule (12). La fermeture (10) inclut un logement (35) s'insérant dans le col de remplissage (12) et formé de façon à inclure une surface d'étanchéité (124). Une soupape de décharge (40) est placée horizontalement dans le logement (35). La soupape (40) inclut une partie recevant un pistolet de distribution (133) et une partie d'étanchéité (135). La partie recevant le pistolet (133) comprend une ouverture (154) qui reçoit le pistolet de distribution (24) durant le remplissage du réservoir de carburant (14). La partie d'étanchéité (135) se déplace par rapport au logement (35) entre une position de fermeture engageant de manière étanche la surface d'étanchéité (124) et une position de décharge éloignée de la surface d'étanchéité (124) de façon à définir une ouverture entre les deux afin d'évacuer les vapeurs de carburant (238) du réservoir de carburant (14) lorsque la pression du réservoir dépasse une pression maximale prédéterminée. La partie recevant le pistolet de distribution (133) est configurée de façon à se déplacer avec la partie d'étanchéité (135).

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