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:
Oct. 02, 2012
Filed:
Dec. 31, 2004
Jeremy Stephen Matcham, West Sussex, GB;
Nathan Grange, Derby, GB;
Paul Alan Benson, Leicestershire, GB;
Scott Baird, Norringham, GB;
Ashley Kells, West Yorkshire, GB;
Jonathan Cole, Leicestershire, GB;
Paul L. Adcock, Leicestershire, GB;
Peter David Hood, Leicestershire, GB;
Simon Edward Foster, Leicestershire, GB;
Jeremy Stephen Matcham, West Sussex, GB;
Nathan Grange, Derby, GB;
Paul Alan Benson, Leicestershire, GB;
Scott Baird, Norringham, GB;
Ashley Kells, West Yorkshire, GB;
Jonathan Cole, Leicestershire, GB;
Paul L. Adcock, Leicestershire, GB;
Peter David Hood, Leicestershire, GB;
Simon Edward Foster, Leicestershire, GB;
Intelligent Energy Limited, Leicestershire, GB;
Other;
Abstract
An electrochemical fuel cell having an anode, an ion transfer membrane and a cathode has liquid water delivered to the fluid flow channels within the cathode so as to maintain a relative humidity of 100% throughout the fluid flow channels. A calibration method and apparatus is described for determining an optimum quantity or range of quantities of liquid water to be delivered to the cathode fluid flow channels under varying operating conditions. An operating method and apparatus is described that ensures an optimum quantity of liquid water is delivered to the cathode fluid flow channels under varying operating conditions.