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:
Nov. 05, 2013
Filed:
Jun. 27, 2006
Bruce J. Clingerman, Palmyra, NY (US);
Jason R. Kolodziej, West Henrietta, NY (US);
Derek S. Kilmer, Rochester, NY (US);
Pinkhas A. Rapaport, Fairport, NY (US);
David S. Mathews, Howell, MI (US);
Shyam Kocha, West Henrietta, NY (US);
Abdullah B. Alp, Rochester, NY (US);
Matthew K. Hortop, Rochester, NY (US);
William H. Pettit, Rochester, NY (US);
Bruce J. Clingerman, Palmyra, NY (US);
Jason R. Kolodziej, West Henrietta, NY (US);
Derek S. Kilmer, Rochester, NY (US);
Pinkhas A. Rapaport, Fairport, NY (US);
David S. Mathews, Howell, MI (US);
Shyam Kocha, West Henrietta, NY (US);
Abdullah B. Alp, Rochester, NY (US);
Matthew K. Hortop, Rochester, NY (US);
William H. Pettit, Rochester, NY (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A fuel cell system that employs a method for determining the potential that a freeze condition will exist after the system is shut-down based on predetermined input, such as ambient temperature, geographical location, user usage profile, date, weather reports, etc. If the system determines that a freeze condition is probable, then the system initiates a purge shut-down of the fuel cell system where water is purged out of the reactant gas flow channels. If the system determines that a freeze condition is unlikely, then it will initiate a normal shut-down procedure without purging the flow channels. The system will then periodically determine if the conditions have changed, and will initiate the purge if a freeze condition subsequently becomes probable.