Fuel cell

Details Fuel cell Fuel cell

2008-05-23

2010-06-15

Lorengo, Jerry (Department: 1793)

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

C429S010000, C429S006000

Reexamination Certificate

active

07736785

ABSTRACT:
An oxygen-containing gas supply passage and an oxygen-containing gas discharge passage extend through a set of diagonal positions of a first metal separator, and a fuel gas supply passage and a fuel gas discharge passage extend through the other set of diagonal positions of the first metal separator. A fuel gas flow field is connected to the fuel gas supply passage through an inlet buffer at an upper position, and connected to the fuel gas discharge passage through an outlet buffer at a lower position. The inlet buffer includes a first inlet buffer area adjacent to the fuel gas supply passage and a second inlet buffer area adjacent to the fuel gas flow field. Grooves of the first inlet buffer area are deeper than grooves of the second inlet buffer area in the stacking direction.

REFERENCES:
patent: 2005/0255364 (2005-11-01), Cho et al.
patent: 2007/0009779 (2007-01-01), Mohri et al.
patent: 1378953 (2004-01-01), None
patent: 06-140056 (1994-05-01), None
patent: 2005-166605 (2005-06-01), None
patent: WO-03/081703 (2003-10-01), None
patent: WO-03/081703 (2003-10-01), None
European Office Action for Application No. 08009413.9, dated Aug. 21, 2008.

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