Fuel battery system and purging method therefor

H - Electricity – 01 – M

Patent

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H01M 8/04 (2006.01)

Patent

CA 2437136

A purging device for a fuel battery system comprises a vapor feed system (18) and an air feed system (19). A purging method for a fuel battery system comprises, in purge-operating a fuel modifying unit (12), a fuel battery main body (11) and a fuel feed system (13), the steps of effecting a purging operation using vapor and then effecting a purging operation using air. According to the above arrangement, it is possible to provide a purging device for a fuel battery system, which is simple in construction and easy to operate, and capable of reliably removing the combustible gas and condensate remaining in the systems, and to provide a purging method.

La présente invention concerne un dispositif de purge destiné à un système de pile à combustible qui comprend un système (18) d'alimentation de vapeur et un système (19) d'alimentation d'air. Un procédé de purge destiné à un système de pile à combustible comprend en mode opérationnel, une unité (12) de modification de combustible, un corps (11) principal de pile à combustible et un système (13) d'alimentation de combustible. Ce procédé consiste à effectuer une opération de purge à l'aide de vapeur puis une opération de purge à l'aide d'air. Selon cet agencement, il est possible d'obtenir un dispositif de purge destiné à un système de pile à combustible, simple à fabriquer et à faire fonctionner, et qui peut retirer de façon fiable les gaz et condensats de combustible restant dans les systèmes. Cette invention concerne aussi un procédé de purge.

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