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:
Jan. 10, 2006
Filed:
Jun. 24, 2002
Karl J. Haltiner, Jr., Fairport, NY (US);
Haskell Simpkins, Grand Blane, MI (US);
Sean M. Kelly, Churchville, NY (US);
Bernhard A. Fischer, Rochester, NY (US);
Karl J. Haltiner, Jr., Fairport, NY (US);
Haskell Simpkins, Grand Blane, MI (US);
Sean M. Kelly, Churchville, NY (US);
Bernhard A. Fischer, Rochester, NY (US);
Delphi Technologies, Inc., Troy, MI (US);
Abstract
A fuel cell assembly having manifold means for providing fuel and air to, and removing spent fuel and air from, flow passageways across the anodes and cathodes in a fuel cell stack. The sizes and proportions of the supply and return manifolds are optimized, and the total cross-sectional area of the return manifold is about twice the cross-sectional area of the supply manifold. The pressure drop in the manifolds is less than about one-quarter of the total pressure drop across the anode and cathode passageways in the stack, which ratio may be attained by adjusting the thickness of the anode and cathode spacers and/or the size of the chimneys. Widthwise uniformity of flow across the anodes and cathodes is improved by forming each of the manifolds as a plurality of smaller, parallel flow conduits.