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:
Jun. 05, 2007
Filed:
Feb. 07, 2003
Dirk Wexel, Mainz-Kastel, DE;
Bernhard Wnendt, Rüsselsheim, DE;
Dirk Wexel, Mainz-Kastel, DE;
Bernhard Wnendt, Rüsselsheim, DE;
General Motors Corporation, Detroit, MI (US);
Abstract
System for thermally conditioning, humidifying and filtering reactant feed gases supplied to a stack of fuel cells using an evaporative element, a water spray mechanism and a heat exchanger. The evaporation element also functions as a filter. The evaporative element may take the form of a removable packing (filter media). Use of a controller to manage the rate of nebulized water addition to the feed gas stream is also described. Benefits in filter efficiency and extended filter service life along with volume, weight, and cost reduction in a fuel cell system are realized.