A piping structure of a fuel cell stack

H - Electricity – 01 – M

Patent

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Details

H01M 8/04 (2006.01) H01M 2/12 (2006.01) H01M 8/24 (2006.01)

Patent

CA 2596382

The invention is directed to a piping structure of a fuel cell stack that discharges gas from a coolant fluid outlet pipe before the gas accumulates in a coolant fluid passage within the fuel cell stack. In addition, the piping structure drains fluid from a fuel gas outlet pipe and an oxidant gas outlet pipe before the fluid accumulates in a fuel gas passage and an oxidant gas passage, respectively, within the fuel cell stack. In this way, the piping structure described herein improves cooling performance of the coolant fluid as well as power generation performance and life of the fuel cell stack.

L'invention porte sur une structure de canalisation d'un empilement de piles à combustible qui libère un gaz d'un conduit de sortie de fluide refroidissant avant que le gaz ne s'accumule dans un passage de fluide refroidissant dans l'empilement de piles à combustible. De plus, la structure de canalisation draine le fluide depuis un conduit de sortie de gaz à combustible et un conduit de sortie de gaz oxydant avant que le fluide ne s'accumule dans un passage de gaz à combustible, dans l'empilement de piles à combustible. Ainsi, la structure de canalisation permet d'améliorer les performances de refroidissement du fluide refroidissant ainsi que les performances de génération de puissance et la durée de vie de l'empilement de piles à combustible.

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