Fuel tank vent valve and method of mounting

Details Fuel tank vent valve and method of mounting Fuel tank vent valve and method of mounting

F - Mech Eng,Light,Heat,Weapons

16

K

F16K 24/04 (2006.01) B29C 45/14 (2006.01)

Patent

CA 2438209

A fuel vapor vent valve and method of making same for installation in an access opening of non-metallic fuel tanks. The valve body is formed of material not weldable to the tanks (14) and an annular seal member (44) formed of resilient material seals between the body upper portion exterior to the access opening and an overmold (48) formed of material weldable to the tanks for retaining and sealing the valve thereon. In one embodiment the seal member is received in a groove and retained by a ring; and, in another embodiment the seal is formed by potting material cured in the groove prior to the overmolding.

L'invention concerne une soupape d'aération de vapeur de carburant et un procédé de fabrication de cette soupape pour une installation dans une ouverture d'accès de réservoirs de carburant non métalliques. Le corps de soupape est composé d'un matériau qui ne peut être soudé aux réservoirs et d'un élément de joint annulaire formé par des joints de matériau résilient entre la partie supérieure du corps extérieure à l'ouverture d'accès et un surmoulage composé d'un matériau soudable aux réservoirs permettant de contenir et de sceller la soupape dessus. Selon l'un des modes de réalisations, l'élément de joint est reçu dans une rainure et retenu par un anneau et selon un autre mode de réalisation, le joint est formé par un matériau d'enrobage dans la rainure avant surmoulage.

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