Apparatus and method for filling fuel

F - Mech Eng,Light,Heat,Weapons – 17 – C

Patent

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F17C 5/00 (2006.01) F17C 13/02 (2006.01)

Patent

CA 2493502

A fuel filling apparatus is provided. The fuel filling apparatus comprises an overfilling protective valve arranged in a fuel gas supply path for supplying a fuel gas to an automobile. The overfilling protective valve further comprises a fuel gas path, a valve unit for opening and closing the fuel gas path by a valve body, a valve body displacement means for displacing the valve body according to a filling pressure of the fuel gas, and a temperature modulating unit for modulating a temperature of the valve body displacement means. Even though a difference between the temperature of the fuel gas and the operation temperature of the overfilling protective valve is large, the temperature of the valve body displacement means can be maintained within the preset temperature range by the temperature modulating unit and the overfilling protective valve can be exactly operated under the preset pressure.

L'invention porte sur un appareil de remplissage en carburant comprenant une valve de protection contre le trop-plein placée dans un canal d'alimentation en gaz combustible permettant d'alimenter une automobile en carburant. La valve de protection contre le trop-plein comprend également un canal d'alimentation en gaz combustible, une valve destinée à ouvrir et fermer le canal au moyen du corps de la valve, un dispositif permettant de déplacer le corps de la valve en fonction de la pression de remplissage en gaz combustible et un modulateur de température destiné à moduler la température du dispositif de déplacement du corps de la valve. Même s'il y a une grande différence entre la température du gaz combustible et la température de fonctionnement de la valve de protection contre le trop-plein, il est possible de maintenir la température du dispositif de déplacement du corps de la valve dans la plage prédéfinie au moyen du modulateur, la valve de protection pouvant être activée avec précision sous la pression prédéfinie.

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