Fuel cell stack
First Claim
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1. A fuel cell system comprising:
- a fuel cell stack including;
a number of fuel cells, each including a first passage means having first input and output ports for conveying a first process gas through the cell and a second passage means having second input and output ports for conveying a second process gas through the cell, said first and second passage means being disposed in opposition to support countercurrent flow of said first and second process gases;
first manifolding means internal of said fuel cells and common to said first passages for conveying said first process gas.a number of third passage means for conveying a cooling gas through said stack.
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Abstract
A fuel cell stack comprised of a number of fuel cells each including first and second passage means for conveying first and second process gases, respectively, through the stack, the stack further including a first internal manifold common to the first passages means and a number of third passages means for conveying a cooling gas through the stack.
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Citations
30 Claims
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1. A fuel cell system comprising:
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a fuel cell stack including; a number of fuel cells, each including a first passage means having first input and output ports for conveying a first process gas through the cell and a second passage means having second input and output ports for conveying a second process gas through the cell, said first and second passage means being disposed in opposition to support countercurrent flow of said first and second process gases; first manifolding means internal of said fuel cells and common to said first passages for conveying said first process gas. a number of third passage means for conveying a cooling gas through said stack. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification