Cathode flow control for fuel cell power plant
CA 1310359 C · Owner: International Fuel Cells Corporation · Inventors: Scheffler, Glenn W.; Vartanian, George
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Cathode Flow Control For Fuel Cell Power Plant, A system and method for regulating the total oxygen content entering the cathode side of a fuel cell stack at less than full power depends on measurement of: oxygen partial pressure in the cathode exhaust stream; total oxygen entering the cathode; and current produced by the stack. During partial power operation of the stack it is, desirable to limit the cathode potential or, voltage, by recycling cathode exhaust and mixing it with incoming fresh air fed into the cathodes. This system ensures that the total oxygen flow to the cathodes remains constant at any given current by reducing the amount of fresh air flowing to the cathodes as the …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted November 17, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 17, 2009.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.