Water recovery in the anode side of a proton exchange membrane fuel cell
CA 2315134 A1 · Owner: Hydrogenics Corporation · Inventors: Chen, Xuesong; Frank, David
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fuel cell has a proton exchange membrane. In known manner the fuel cell, includes inlets and outlets for flow of an oxidant and for flow of a fuel gas commonly hydrogen. To deal with the issue of humidification the invention, provides a recirculation conduit including a pump connected between the anode inlet and the anode outlet. A water separator is provided in the recirculation conduit, for separating water from fuel gas exiting the anode. A main fuel inlet is, connected to the recirculation conduit for supply of fuel. A branch conduit , can be provided, to enable purge cycles and other options to be provided.
Read the whole patent
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
- Filed August 4, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 4, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 4, 2022.
- 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.