Ultra short high pressure gradient flow path flow field

Details Ultra short high pressure gradient flow path flow field Ultra short high pressure gradient flow path flow field

2004-01-16

2010-02-02

Ryan, Patrick (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

C429S006000, C429S006000

Reexamination Certificate

active

07655340

ABSTRACT:
The present invention is directed to a planar flow field design having an intake manifold and an exhaust manifold which are configured in two offset planes. A relatively short passage extends from the intake manifold through the exhaust manifold and terminates at a reactive face of a membrane electrode assembly (MEA) such that a differential flow distribution is provided from the intake manifold through the passage and across a reactive face of the MEA to the exhaust manifold.

REFERENCES:
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patent: 7258944 (2007-08-01), Tsunoda
patent: 2001/0006745 (2001-07-01), Bronoel et al.
patent: 2002-008682 (2002-01-01), None
S.J.C. Cleghorn, C.R. Derouin, M. S. Wilson, S. Gottesfeld; “A Printed Circuit Board Approach To Measuing Current Distribution In A Fuel Cell”; Journal of Applied Electrochemistry 28 (1998) pp. 663-672.

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