Fuel cell with triangular buffers for reactant gas and coolant

Details Fuel cell with triangular buffers for reactant gas and coolant Fuel cell with triangular buffers for reactant gas and coolant

2011-01-11

2011-01-11

Yuan, Dah-Wei D (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

C429S452000, C429S455000, C429S456000, C429S512000, C429S513000

Reexamination Certificate

active

07867666

ABSTRACT:
An oxygen-containing gas flow field for supplying an oxygen-containing gas from an oxygen-containing gas supply passage to an oxygen-containing gas discharge passage is formed on a first metal plate. The oxygen-containing gas flow field includes oxygen-containing gas flow grooves as serpentine flow grooves having two turn regions T1, T2. The oxygen-containing gas flow grooves have substantially the same length. The oxygen-containing gas flow grooves are connected to an inlet buffer and an outlet buffer at opposite ends. The inlet buffer and the outlet buffer have a substantially triangular shape, and are substantially symmetrical with each other.

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