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. 22, 2006
Filed:
May. 05, 2003
James Kralick, Albany, NY (US);
James Kralick, Albany, NY (US);
Delphi Technologies, Inc., Troy, MI (US);
Abstract
A fuel cell air supply system disposed in an enclosure. A blower discharge plenum for supplying air individually to various fuel cell functions via individual control valves is provided with an additional controllable purge valve connected to an exhaust port through a wall of the enclosure. At any desired time, the purge valve may be opened and the system process valves closed to draw fresh air into the enclosure and thereby purge stale gases within the enclosure to the exterior of the system. This function is especially useful just prior to start-up of the fuel cells of the system, and may also be used periodically after shut-down to maintain a desirably low temperature in the enclosure during cooling off of the fuel cell assembly.