The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 04, 2014
Filed:
May. 22, 2013
Commissariat a L'energie Atomique ET Aux Energies Alternatives, Paris, FR;
Sylvain Passot, Tullins, FR;
Olivier Lemaire, Les Abrets, FR;
Abstract
A method for optimizing fuel feed of a fuel cell stack catalytic electrode, the fuel cell stack containing a cell comprising a proton exchange membrane located between said catalytic electrode and another electrode, operating in superstoichiometric mode, said fuel comprising a carbonyl-containing polluting agent compound reacting on said catalytic electrode, comprises: defining a reference voltage for said cell when fed with a fuel exempt from polluting agent; defining a threshold voltage corresponding to a preset operating voltage of said cell as a percentage of reference voltage; defining a calibration curve for given operating conditions, relating threshold voltage to flow rate of polluting agent and allowing a first parameter of flow rate of polluting agent to be defined; detecting polluting agent to define a second parameter corresponding to content of polluting agent present in said fuel; and determining a maximum stoichiometry coefficient for said fuel stream, depending on said two parameters.