Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation
Reexamination Certificate
2005-07-12
2005-07-12
Alejandro, Raymond (Department: 1745)
Chemistry: electrical current producing apparatus, product, and
With pressure equalizing means for liquid immersion operation
C429S006000, C429S006000
Reexamination Certificate
active
06916567
ABSTRACT:
Moisture recovery and humidification in a fuel cell system involving (i) intermittently switching each dryer in a plurality of dryers into and out of one of a first mode of operation for recovering moisture from an outgoing oxidant stream and a second mode of operation for humidifying an incoming oxidant stream such that during use at least one dryer is in the first mode of operation and at least one dryer is in the second mode of operation; (ii) directing the outgoing oxidant stream from the cathode through at least one dryer in the first mode of operation to recover moisture from the outgoing oxidant stream; and (iii) directing the incoming oxidant stream through at least one dryer in the second mode of operation to humidify the incoming oxidant stream with moisture.
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Cargnelli Joe
Chen Xuesong
Frank David
Gopal Ravi B.
Ye Jianming
Alejandro Raymond
Bereskin & Parr
Hydrogenics Corporation
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