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:
Jan. 26, 2010
Filed:
Mar. 26, 2004
Daryl Chapman, Victor, NY (US);
Prem Menon, Rochester, NY (US);
David A. Masten, Rochester, NY (US);
Norm Dill, Walworth, NY (US);
Robert Schafer, Darmstadt, DE;
Daniel B. O'connell, Victor, NY (US);
Barbara S. Moore, Victor, NY (US);
Daryl Chapman, Victor, NY (US);
Prem Menon, Rochester, NY (US);
David A. Masten, Rochester, NY (US);
Norm Dill, Walworth, NY (US);
Robert Schafer, Darmstadt, DE;
Daniel B. O'Connell, Victor, NY (US);
Barbara S. Moore, Victor, NY (US);
GM Global Technology Operations, Inc., Detroit, MI (US);
Abstract
A fuel cell system that employs a purge valve, an accumulator and a bleed valve for selectively purging and bleeding anode exhaust gas. When the purge valve is opened, the anode exhaust gas purges to the accumulator where it is collected. The bleed valve provides a controlled release of the anode exhaust gas from the accumulator that allows the concentration of hydrogen bled from the accumulator to remain below its combustible limit. In one embodiment, the purged anode exhaust gas is combined with the cathode exhaust gas and released to atmosphere. In another embodiment, the purged anode exhaust gas is combined with a cathode input gas. In another embodiment, the purged anode exhaust gas is combined with an anode input gas.