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:
Sep. 15, 2026
Filed:
Jul. 19, 2021
Robert Bosch Gmbh, Stuttgart, DE;
Mark Hellmann, Korntal, DE;
Matthias Rink, Herrenberg, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The invention relates to a method for operating a fuel cell system in which at least one fuel cell () is supplied with hydrogen via an anode path () and with oxygen via a cathode path, and in which anode exhaust gas exiting the fuel cell () is recirculated via a recirculation path (), wherein steam contained in the anode exhaust gas is adsorbed by means of a zeolite container (). According to the invention, the following steps are carried out in order to regenerate the zeolite container (): a) separating the zeolite container () from the recirculation path () by closing at least one shut-off valve () and/or switching a directional control valve (), b) heating the zeolite container () by means of an electric heating device () such that previously adsorbed water is desorbed, and c) removing the desorbed water from the system by switching the directional control valve () again and/or by opening at least one flushing valve (). The invention additionally relates to a fuel cell system which is suitable for carrying out the method.