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:
Oct. 02, 2012
Filed:
Apr. 24, 2009
Carl A. Reiser, Stonington, CT (US);
Tommy Skiba, East Hartford, CT (US);
Timothy W. Patterson, Jr., West Hartford, CT (US);
Carl A. Reiser, Stonington, CT (US);
Tommy Skiba, East Hartford, CT (US);
Timothy W. Patterson, Jr., West Hartford, CT (US);
UTC Power Corporation, South Windsor, CT (US);
Abstract
The invention is a hydrogen passivation shut down system for a fuel cell power plant (). During shut down of the plant (), hydrogen fuel is permitted to transfer between an anode flow path (') and a cathode flow path (′). A passive hydrogen bleed line () permits passage of a smallest amount of hydrogen into the fuel cell () necessary to maintain the fuel cell () in a passive state. A diffusion media () may be secured in fluid communication with the bleed line () to maintain a constant, slow rate of diffusion of the hydrogen into the fuel cell () despite varying pressure differentials between the shutdown fuel cell () and ambient atmosphere adjacent the cell ().