Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Means for distributing – storing – or preventing fluid movement
Reexamination Certificate
2005-02-04
2011-10-04
Gilliam, Barbara (Department: 1727)
Chemistry: electrical current producing apparatus, product, and
Fuel cell, subcombination thereof, or method of making or...
Means for distributing, storing, or preventing fluid movement
C429S512000, C429S513000
Reexamination Certificate
active
08029942
ABSTRACT:
A fuel cell system having flow fields capable to operate like interdigitated flow fields, but in the same time allowing the removal of liquid water collected in the high-pressure channels, throughout individual exhaust passages. In a preferred embodiment, the channels follow radial-circumferential trajectories, each channel being provided with individual exhaust passages. In another preferred embodiment, each channel is provided with a valve control in both individual supply passages and individual exhaust passages allowing the system to operate alternatively as an interdigitated flow field as well as an open-channel flow field.
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Vladimir Gurau, Hongtan Liu, and Sadik Kakac, Dept. of Mechanical Engineering, University of Miami, Coral Gables, FL 33124; Nov. 1988 vol. 44, No. 11; pp. 2410 to 2422; AIChE Journal.
Gurau Vladimir
Wainright Jesse
Zawodzinski Christine
Zawodzinski Tom
Case Western Reserve University
Gilliam Barbara
Scully Steven
Tarolli, Sundheim Covell & Tummino LLP
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