Fuel cell system including gas recycling and pressurizing...

Details Fuel cell system including gas recycling and pressurizing... Fuel cell system including gas recycling and pressurizing...

2011-03-01

2011-03-01

Rhee, Jane (Department: 1726)

Chemistry: electrical current producing apparatus, product, and

Fuel cell, subcombination thereof, or method of making or...

C429S408000, C429S414000, C429S415000, C429S416000, C429S417000, C429S428000, C429S444000

Reexamination Certificate

active

07897285

ABSTRACT:
A fuel cell system including a gas recycling and re-pressurizing assembly. In one embodiment, the fuel cell system includes a fuel cell stack, the stack having an oxygen outlet and an oxygen inlet. The fuel cell system additionally includes two gas/water separator tanks, each of the tanks containing a quantity of water and a quantity of oxygen gas. Both tanks are capable of being fluidly connected to either the oxygen inlet or the oxygen outlet of the fuel cell stack. In addition, the two tanks are connected to one another so that water may be transferred back and forth between the two tanks. The system also includes a pump for transferring water back and forth between the tanks.

REFERENCES:
patent: 7416808 (2008-08-01), Fujita et al.
patent: 2004/0121218 (2004-06-01), Andrews
patent: 2006/0222912 (2006-10-01), Smith

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