Fuel dispensing nozzle having a dripless spout

Details Fuel dispensing nozzle having a dripless spout Fuel dispensing nozzle having a dripless spout

B - Operations, Transporting

67

D

B67D 7/42 (2010.01)

Patent

CA 2603995

A fuel dispensing nozzle having a dripless spout has a nozzle for placement in a tank. The nozzle has a housing with an air bleed device, an attitude support device extends from the housing, a gland joined to the attitude support device and then the spout attaches to the gland. At fuel shutoff, fuel remains in the gland and the spout. Fuel drops exit the gland then the spout. Regulations limit the drops to three or less. Smooth tubes have little if any capillary action while tubes with roughened interior surfaces retain fluid. The dripless spout has a texture applied to the interior surface of the gland, the spout, or both by way of a screen; a hole in the attitude support device; and the air bleed device located in the vapor path to reduce negative vacuum.

Cette invention concerne un pistolet de distribution de carburant doté d~un bec antigoutte, le pistolet devant être placé dans un réservoir. Le pistolet comprend un corps avec un dispositif de purge d'air, un élément de support d~orientation sortant du corps et un manchon de raccordement joint à l~élément de support d~orientation, le bec se fixant au manchon. Lors de l~arrêt du carburant, celui-ci reste dans le manchon et le bec. Les gouttes de carburant sortent du manchon, puis du bec. Un dispositif de régulation limite le nombre de gouttes à trois au maximum. Les tubes lisses présentent une faible action capillaire, voire aucune, alors que ceux à parois internes rugueuses retiennent le fluide. Le bec antigoutte possède une texture appliquée à la paroi interne du manchon, du bec ou les deux, au moyen d~un écran, un orifice dans l~élément de support d~orientation et le dispositif de purge d'air situé sur le circuit des vapeurs de carburant pour réduire le vide négatif.

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