Fuel cell

Details Fuel cell Fuel cell

2007-03-01

2011-10-11

Ryan, Patrick (Department: 1726)

Chemistry: electrical current producing apparatus, product, and

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

Grouping of fuel cells into stack or module

C429S456000, C429S458000

Reexamination Certificate

active

08034506

ABSTRACT:
A fuel gas flow field is formed on a surface of a rectangular first metal separator. The fuel gas flow field includes flow grooves extending in the direction of gravity. An outlet buffer is provided at a lower end of the fuel gas flow field. The outlet buffer includes an inclined surface inclined toward a fuel gas discharge passage. The fuel gas discharge passage is positioned below the outlet buffer. Outlet channel grooves are formed by ridges provided between the fuel gas discharge passage and the outlet buffer. Lower ends of the ridges are arranged in a zigzag pattern.

REFERENCES:
patent: 3833424 (1974-09-01), Louis et al.
patent: 2004/0180248 (2004-09-01), Matsubayashi et al.
patent: 2005/0048342 (2005-03-01), Wakahoi et al.
patent: 2005/0084731 (2005-04-01), Nishimura et al.
patent: 2005/0118489 (2005-06-01), Frederiksen et al.
patent: 2005/0221151 (2005-10-01), Suzuki et al.
patent: 102004032907 (2005-02-01), None
patent: 06-020713 (1994-01-01), None
German Office Action for Application No. 102007009905.5-45, dated Nov. 27, 2008.

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