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:
Dec. 21, 2010
Filed:
Oct. 13, 2005
Arun K. S Iyengar, Delmont, PA (US);
Raymond a George, Pittsburgh, PA (US);
Richard E Kothmann, Pittsburgh, PA (US);
Arun K. S Iyengar, Delmont, PA (US);
Raymond A George, Pittsburgh, PA (US);
Richard E Kothmann, Pittsburgh, PA (US);
Siemens Energy, Inc., Orlando, FL (US);
Abstract
In one embodiment the present comprises an air inlet, a series of fuel cells, a new fuel inlet, a fuel distributor, a recirculation plenum, and an exhaust. Fresh fuel from the fuel distributorenters the fuel cell stack in a middle-third section of the fuel cell stack, and the fresh fuel is divided into an exhaust fuelflow and a recirculation fuel flow. The exhaust fuel flow passes along a first portion of the series of fuel cells to the exhaust, and the recirculation fuel flow passes along a second portion of the series of fuel cells to the recirculation plenum and mixes with new fuel from the new fuel inlet in the fuel distributor. The recirculation plenum is located at an opposite end of the fuel cell stack from the exhaust, and the fuel-cell stack is of a seal-less design.