Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation
Reexamination Certificate
2008-07-15
2008-07-15
Alejandro, Raymond (Department: 1795)
Chemistry: electrical current producing apparatus, product, and
With pressure equalizing means for liquid immersion operation
C429S006000, C429S006000, C429S006000
Reexamination Certificate
active
10981183
ABSTRACT:
A fuel cell power plant includes a plurality of fuel cell stacks which are operatively associated with each other so that both the air stream and fuel stream for the stacks are shared by each of the stacks in the power plant. The air and fuel streams are fed into an initial stack stage in the power plant, and after the air and fuel streams pass through the initial stack stage, the fuel exhaust streams are then fed into one or more subsequent stack stages in the power plant. The fuel streams are passed from the initial fuel cell stack stage to the subsequent fuel cell stack stage by means of a common manifold on which each of the fuel cell stacks in the power plant is mounted. The common manifold fuel stream passages are thermally insulated so as to limit water condensation in the fuel stream passages. The manifold may also include water condensation collection traps which will withdraw any water condensate that does form in the fuel stream passages.
REFERENCES:
patent: 6541148 (2003-04-01), Walsh et al.
patent: 2003/0008194 (2003-01-01), Cargneli et al.
patent: 2003/0099873 (2003-05-01), Brambilla et al.
patent: 2004/0197625 (2004-10-01), Deshpande et al.
patent: 0263052 (1987-09-01), None
Alejandro Raymond
Jones William W.
UTC Fuel Cells LLC
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