Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
October 17, 2006
0Patent Application Number
106285330
Date Filed
July 29, 2003
0Patent Primary Examiner
Patent abstract
Provided is a fuel cell system capable of preventing a drop of power stemming from the water residence at an electrode portion or the shortage of water content in an electrolyte membrane. The system is equipped with an air pressure regulating valve for adjusting the pressure of air to be supplied to a fuel cell stack and a hydrogen pressure regulating valve for adjusting the pressure of hydrogen. In this system, the pressure difference between the air pressure and the hydrogen pressure is controlled through the regulating valves so that a minimum hydrogen pressure becomes higher than a maximum air pressure, or so that a minimum air pressure becomes higher than a maximum hydrogen pressure.
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