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:
Aug. 05, 2003
Filed:
Jun. 13, 2000
Xuesong Chen, Brampton, CA;
David Frank, Scarborough, CA;
Hydrogenics Corporation, Mississauga, CA;
Abstract
In a fuel cell, a humidification cell stack is provided at each end of the fuel cell as an extension of the fuel cell. The cells of each of the two humidification cell stacks can be structurally similar to and can include the same membrane as the individual cells of the fuel cell stack. Flows of fuel and oxygen are then arranged to pass through each of the two humidification cell stacks for exchange of moisture. Preferably, the humidification section at one end of the fuel cell stack provides moisture exchange between incoming fuel and discharged oxygen, while the humidification section at the other end of the fuel cell stack, provides moisture exchange between the incoming oxygen and the discharged fuel. This arrangement is expected to enhance uniform operating conditions within the fuel cell stack itself, so as to ensure optimum operating conditions throughout the fuel cell stack.