Method and device for purge of inert gas admixture

H - Electricity – 01 – M

Patent

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H01M 8/04 (2006.01)

Patent

CA 2428689

The invention relates to fuel elements. The inventive device is embodied in the form of a battery of fuel elements and comprises at least two series connected, according to a working gas, fuel elements disposed prior to an output main line for gas discharge, and an input main line. The inventive method consists in supplying the working gas to the input main line and periodically discharging said working gas from the output main line. At the moment of discharge of a gas from the battery, the working gas is supplied from the input main line to the corresponding input of at least one series connected fuel element disposed prior to the output main line for discharging the working gas from the fuel element, the supply of the working gas from the input main line being stopped after the gas discharge termination from the battery.

Cette invention porte sur les éléments combustibles. Ce dispositif permettant de supprimer les impuretés inertes dans au moins un gaz de travail d'une pile à éléments combustibles comprend d'une part des conduites principales d'entrée et de sortie permettant l'admission et l'évacuation du gaz de travail, et d'autre part au moins deux éléments combustibles connectés en série et disposés en amont de la conduite principale de sortie du gaz de travail. Le procédé de cette invention consiste à acheminer le gaz de travail par la conduite principale d'entrée et à évacuer périodiquement ce gaz par la conduite principale de sortie. Lorsque le gaz sort de la pile, le gaz de travail est acheminé de la conduite principale d'entrée à l'entrée correspondante d'au moins un élément combustible connecté en série et disposé en amont d'une conduite principale de sortie servant à évacuer le gaz de travail de l'élément combustible, l'alimentation en gaz de travail par la conduite principale d'entrée étant interrompue lorsque le gaz est entièrement sorti de la pile.

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