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:
Jul. 24, 2001
Filed:
Apr. 14, 2000
Mark Alexander Meltser, Pittsford, NY (US);
Stanley Gutowski, Pittsford, NY (US);
Kirk Weisbrod, Los Alamos, NM (US);
General Motors Corporation, Detroit, MI (US);
Abstract
A method of operating a H,—O,fuel cell fueled by hydrogen-rich fuel stream containing CO. The CO content is reduced to acceptable levels by injecting oxygen into the fuel gas stream. The amount of oxygen injected is controlled in relation to the CO content of the fuel gas, by a control strategy that involves (a) determining the CO content of the fuel stream at a first injection rate, (b) increasing the O,injection rate, (c) determining the CO content of the stream at the higher injection rate, (d) further increasing the O,injection rate if the second measured CO content is lower than the first measured CO content or reducing the O,injection rate if the second measured CO content is greater than the first measured CO content, and (e) repeating steps a-d as needed to optimize CO consumption and minimize H,consumption.