Fuel cell manifold seal with rigid inner layer

Details Fuel cell manifold seal with rigid inner layer Fuel cell manifold seal with rigid inner layer

2006-09-26

2006-09-26

Ryan, Patrick Joseph (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

C429S006000, C029S623200

Reexamination Certificate

active

07112384

ABSTRACT:
A multi-layer seal system for a manifold (10) of a proton exchange membrane fuel cell includes a silicone rubber filler layer (22) between endplates (9) to compensate for the uneven edges of cell elements, an elastomer gasket (15) disposed within a groove (24) in the contact surfaces of a manifold (10), and a rigid dielectric strip (40) coplanar with the contact surfaces (17) of the endplates (9) interposed between the silicone rubber filler layer (22) and the gasket (15). The rigid dielectric strip (40) may be either angled (40a) for a corner seal, or flat (40b).

REFERENCES:
patent: 4623596 (1986-11-01), Kamoshita
patent: 4794055 (1988-12-01), Matsumura et al.

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