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US 4,444,851 AGranted
Fuel cell stack
AssigneeEnergy Research Corporation
InventorHansraj C. Maru
Life of this patent
Estimating the term…
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.
Claims30
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.
1 more element
Dependencies are inferred from the claim text.