Homogenous thermal coolant cycling in fuel cell stack

Details Homogenous thermal coolant cycling in fuel cell stack Homogenous thermal coolant cycling in fuel cell stack

2011-03-15

2011-03-15

Yuan, Dah-Wei D (Department: 1727)

Chemistry: electrical current producing apparatus, product, and

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

Process or means for control of operation

C429S433000, C429S434000

Reexamination Certificate

active

07906244

ABSTRACT:
An internal coolant circulation system and method of homogenizing waste heat in a fuel cell stack using homogenous thermal coolant cycling is disclosed. The method includes operating a fuel cell stack, distributing a coolant through the fuel cell stack, terminating operation of the fuel cell stack, retaining the coolant in the fuel cell stack and circulating the coolant throughout the fuel cell stack.

REFERENCES:
patent: 2005/0175875 (2005-08-01), Nelson et al.
patent: 2005/0282050 (2005-12-01), Zanoni et al.

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