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:
Oct. 24, 2000
Filed:
Feb. 20, 1998
Karl Kriechbaum, Kassel, DE;
Gerhard Filip, Kronberg, DE;
AEG Energietechnik GmbH, Frankfurt, DE;
Abstract
The invention relates to a fuel cell system with high-temperature fuel cells, in which some of the heat of the gases flowing out of the anode and cathode is used to that end. The gases that the flow into the anode and cathode are brought to a temperature that is required for operation of the fuel cells and is still tolerable for the cells, having an anode and/or cathode loop. It is provided that for the anode and/or cathode loop, at least that time-referred quantity of reaction gases that is required for attaining the electrical output of the fuel cells is furnished. From the gas flowing out of the anode and/or cathode, an equivalent quantity of gas is removed from the gas loop, and the gas quantity introduced into the loop is dimensioned such that by mixing this gas quantity with the gas returned to the loop from the anode and/or cathode, the temperature of the gas flowing into the anode and/or cathode attains a predetermined operating temperature that is optimal for the service life of the cells and for efficiency.