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:
Feb. 13, 2007
Filed:
May. 11, 2004
Michael S. Defilippis, Delmar, NY (US);
Graciela I. Varela, Troy, NY (US);
Luke E. Yetto, Albany, NY (US);
Keith G. Brown, Clifton Park, NY (US);
Michael S. DeFilippis, Delmar, NY (US);
Graciela I. Varela, Troy, NY (US);
Luke E. Yetto, Albany, NY (US);
Keith G. Brown, Clifton Park, NY (US);
MTI MicroFuel Cells Inc., Albany, NY (US);
Abstract
A single pump fuel cell system is provided that has multiple valves that have selective positioning to control fluidic flow throughout a fuel cell system. One of the valves provides for high and low concentration fuel dosing. Another valve or series of valves controls an unreacted fuel recirculation loop leading from the fuel cell. Another valve or series of valves control condensate collection by the fuel cell system, and allows the purging of the anode recirculation loop. Each of the valves is selectable between various positions to place the fuel cell system in a desired operating mode. A heat exchanger may also be employed to dissipate heat as desired out of the fuel cell system. A concentration sensor can also be employed to aid in achieving a desired fuel concentration within the fuel cell system.