Fuel cell stack compressive loading system

Details Fuel cell stack compressive loading system Fuel cell stack compressive loading system

1979-08-17

1982-08-17

LeFevour, Charles F.

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

429 38, H01M 208

Patent

active

043450091

ABSTRACT:
A fuel cell module comprising a stack of fuel cells with reactant gas manifolds sealed against the external surfaces of the stack includes a constraint system for providing a compressive load on the stack wherein the constraint system maintains the stack at a constant height (after thermal expansion) and allows the compressive load to decrease with time as a result of the creep characteristics of the stack. Relative motion between the manifold sealing edges and the stack surface is virtually eliminated by this constraint system; however it can only be used with a stack having considerable resiliency and appropriate thermal expansion and creep characteristics.

REFERENCES:
patent: 3516867 (1970-06-01), Dankese

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