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. 29, 2004
Filed:
Aug. 07, 2000
Dietmar Heil, Schwendi, DE;
Bruno Motzet, Weilheim/Teck, DE;
Konrad Schwab, Esslingen, DE;
Alois Tischler, Aidenbach, DE;
Marc Weisser, Owen/Teck, DE;
Ballard Power Systems AG, Kirchheim, DE;
Abstract
A combined component for afterburning anode exhaust gases from a fuel cell system and for vaporizing educts to be fed to the fuel cell system has an exhaust gas catalyzer for afterburning the anode exhaust gases, with a substantially cylindrical casing having an inlet and an outlet connection disposed coaxially to the long axis of the casing, one on a casing cover and the other on a casing bottom. A first gas-permeable inner tube is disposed coaxially to the long axis of the casing and fixedly joined at the gas inlet end to the casing cover, while a second gas-permeable outer tube which is also disposed coaxially with the long axis of the casing and has a radius r greater than the radius r of the inner tube but smaller than the radius r of the casing. The latter is connected gas-tight to the casing cover at the inlet end. A bulk catalyst is disposed in the area between the inner and the outer tube for the catalytic oxidation of the anode exhaust gas. At least one educt to be fed to the fuel cell system is provided in the area between the inner tube and the outer tube, and at least one set of educt flow tubes of the evaporator, through which the educt to be evaporated flows, are carried around the inner tube of the exhaust gas catalyst.