Fuel cell stack with even distributing gas manifolds
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United States of America Patent
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May 12, 2009
Grant Date -
Dec 8, 2005
app pub date -
Jun 7, 2004
filing date -
Jun 7, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of controlling fluid flow to a stack of fuel cell flow field plates comprises providing in each fuel cell flow field plate of the stack of plates a fluid supply manifold aperture for conducting a supply of fluid to a number of the plates in the stack, the fluid supply manifold apertures forming an elongated fluid supply manifold extending through the stack, flowing the supply of fluid into the fluid supply manifold and laterally diverting a part of the supply of fluid to feed each of the number of the plates. The plates are each fed in parallel from the fluid supply manifold, and the laterally diverting is performed in a manner to avoid turbulence in the fluid supply manifold from adversely affecting supply of fluid to downstream ones of the number of plates.
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