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. 12, 2005
Filed:
Aug. 20, 2002
Joe Cargnelli, Toronto, CA;
Jianming YE, Woodbridge, CA;
Xuesong Chen, Brampton, CA;
Ravi B. Gopal, Oakville, CA;
David Frank, Scarborough, CA;
Joe Cargnelli, Toronto, CA;
Jianming Ye, Woodbridge, CA;
Xuesong Chen, Brampton, CA;
Ravi B. Gopal, Oakville, CA;
David Frank, Scarborough, CA;
Hydrogenics Corporation, Mississauga, CA;
Abstract
Moisture recovery and humidification in a fuel cell system involving (i) intermittently switching each dryer in a plurality of dryers into and out of one of a first mode of operation for recovering moisture from an outgoing oxidant stream and a second mode of operation for humidifying an incoming oxidant stream such that during use at least one dryer is in the first mode of operation and at least one dryer is in the second mode of operation; (ii) directing the outgoing oxidant stream from the cathode through at least one dryer in the first mode of operation to recover moisture from the outgoing oxidant stream; and (iii) directing the incoming oxidant stream through at least one dryer in the second mode of operation to humidify the incoming oxidant stream with moisture.