EJECTOR APPARATUS FOR FUEL CELL

An ejector apparatus for a fuel cell includes an ejector main body including an inlet port, an outlet port, a suction port, and an oxidizer-gas supply port, a first to third chambers provided in the body, a nozzle having a nozzle hole discharging the fuel gas, a diffuser mixing the fuel gas discharg...

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Bibliographische Detailangaben
Hauptverfasser:	KATO TAKAHIDE, IKENAGA TAKAO, FUKUMA KAZUNORI
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRICITY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Beschreibung
Zusammenfassung:	An ejector apparatus for a fuel cell includes an ejector main body including an inlet port, an outlet port, a suction port, and an oxidizer-gas supply port, a first to third chambers provided in the body, a nozzle having a nozzle hole discharging the fuel gas, a diffuser mixing the fuel gas discharged from the nozzle hole and the fuel offgas exhausted from the fuel cell and returned to the suction port, a needle fixed on a side of the body and extending along an axial direction of the nozzle in a hollow portion thereof, and first and second diaphragms arranged to oppose each other, and changing an opening area in a gap between the nozzle hole and an outer peripheral face of a top end of the needle, wherein a pressure receiving area of the first diaphragm is set to be larger than that of the second diaphragm.