Integrated coolant header venting for a fuel cell stack

Details Integrated coolant header venting for a fuel cell stack Integrated coolant header venting for a fuel cell stack

2005-08-26

2010-10-05

Ryan, Patrick (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

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

Grouping of fuel cells into stack or module

C429S458000, C429S512000

Reexamination Certificate

active

07807309

ABSTRACT:
A fuel cell stack configuration and method of removing gas from the coolant flow path within a fuel cell stack is provided. The fuel cell stack has an internal vent passageway that communicates with the coolant supply header to enable gas entrapped therein to be vented from the fuel cell stack. The vent passageway can be formed by a plurality of apertures in the components that comprise the fuel cell stack and run parallel and adjacent to the coolant supply header. Alternatively, a vent line can be connected to the coolant supply header with a valve therein to selectively vent gas from the coolant supply header.

REFERENCES:
patent: 2005/0037935 (2005-02-01), Abd Elhamid et al.
patent: 2005/0175873 (2005-08-01), Edwards et al.

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