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:
Dec. 20, 2005
Filed:
Apr. 03, 2003
Ryan J. Balliet, West Hartford, CT (US);
Thomas D. Jarvi, Manchester, CT (US);
Lars M. Pedersen, Wethersfield, CT (US);
Michael L. Perry, South Glastonbury, CT (US);
Carl A. Reiser, Stonington, CT (US);
Ryan J. Balliet, West Hartford, CT (US);
Thomas D. Jarvi, Manchester, CT (US);
Lars M. Pedersen, Wethersfield, CT (US);
Michael L. Perry, South Glastonbury, CT (US);
Carl A. Reiser, Stonington, CT (US);
UTC Fuel Cells, LLC, South Windsor, CT (US);
Abstract
A fuel cell power plant () having a fuel concentration sensor cell () is disclosed for detecting a concentration of fuel in a fuel cell () of the plant (). A portion of a fuel exhaust stream is directed to flow through the sensor cell () adjacent to a membrane electrode assembly () of the sensor cell (). A power circuit () may or may not deliver an electrical current to the cell (), while changes in voltage across the cell () that are proportional to changes in hydrogen concentrations within the fuel exhaust stream are detected by a detector () which communicates the changes to a controller () for controlling a rate of fuel supply to the fuel cell (). A porous sensor water transport plate () cools, humidifies delivers and removes liquid from the sensor cell ().