Method for purging region e.g. anode compartment of polymer electrolyte membrane fuel cell of motor car, involves introducing pressurized purge gas into fuel cell, where purge gas is produced by reaction of hydrogen and oxygen

The method involves introducing pressurized purge gas into a fuel cell (3) for purging a region e.g. anode compartment (4), of the fuel cell or a fuel cell system (1), where the purge gas is produced by a reaction of hydrogen and oxygen, which is triggered by burning hydrogen and oxygen mixture in p...

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Bibliographische Detailangaben
Hauptverfasser:	HARR, OLIVER, JESSE, MATTHIAS, SCHMIDT, CHRISTIAN, MAZZOTTA, COSIMO, SCHERRBACHER, KLAUS, MARX, WILFRIED, BAUR, THOMAS, HAUSMANN, PHILIPP
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION ELECTRICITY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
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Beschreibung
Zusammenfassung:	The method involves introducing pressurized purge gas into a fuel cell (3) for purging a region e.g. anode compartment (4), of the fuel cell or a fuel cell system (1), where the purge gas is produced by a reaction of hydrogen and oxygen, which is triggered by burning hydrogen and oxygen mixture in presence of a catalyst (13). An anode outlet is connected with environment and/or a water separator during the purging process. The reaction of hydrogen and oxygen takes place in a pressure tank that stays in connection with the region to be purged, over a valve device (10) and/or a diaphragm. The reaction is a controlled detonating gas reaction. Die Erfindung betrifft ein Verfahren zum Spülen zumindest eines Bereichs einer Brennstoffzelle (3) und/oder eines Brennstoffzellensystems (1) zur Vorbereitung auf einen Start der Brennstoffzelle (3), wobei zum Spülen ein unter Druck stehendes Spülgas verwendet wird. Die Erfindung ist dadurch gekennzeichnet, dass das Spülgas durch eine Reaktion von Wasserstoff und Sauerstoff erzeugt wird.