Fuel cell block

Details Fuel cell block Fuel cell block

H - Electricity

01

M

H01M 8/02 (2006.01) H01M 8/04 (2006.01) H01M 8/10 (2006.01) H01M 8/24 (2006.01)

Patent

CA 2395192

The invention relates to a fuel cell block (40) that comprises elements (1, 25a-b, 42a-e, 51, 52) that are stacked. At least two adjacent elements (1, 25a-b, 42a-e, 51, 52) define an intermediate space (7, 27, 71) between them. Radial channels (8a, 8b, 8c, 35, 72, 76) are configured between the two elements (1, 25a-b, 42a-e, 51, 52) or in one of the two elements (51, 52), said channels communicating with the intermediate space (7, 27, 71). At least one of the radial channels is configured as a blind channel (9a, 9b, 74, 77) and, unlike the radial channels (8a, 8b, 8c, 35, 72, 76), is not used for a medium flowing into or out of the intermediate space (7, 27, 71). The number of radial channels that are configured as blind channels (9a, 9b, 74, 77) influences the quantity of operating medium flowing through the intermediate space (7, 27, 71).

Bloc (40) de piles à combustible qui comporte des éléments (1, 25a-b, 42a-e, 51, 52) empilés. Au moins deux éléments voisins (1,25a-b, 42a-e, 51, 52) forment entre eux un espace intermédiaire (7, 27, 71) et des canaux radiaux (8a, 8b, 8c, 35, 72, 76) reliés à l'espace intermédiaire (7, 27, 71) sont ménagés entre les deux éléments (1, 25a-b, 42a-e, 51, 52) ou dans l'un des deux éléments (51, 52). Au moins un des canaux radiaux est conçu comme canal sans issue (9a, 9b, 74, 77) et ne sert pas comme les autres canaux radiaux (8a, 8b, 8c, 35, 72, 76) à l'apport d'un milieu dans l'espace intermédiaire (7, 27, 71) ou à l'évacuation de ce milieu dudit espace. Le nombre des canaux radiaux conçus comme canaux sans issue (9a, 9b, 74, 77) influence la force du flux de milieu de travail dans l'espace intermédiaire (7, 27, 71).

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