Polymer electrolyte membrane fuel cell with tandem fuel...

H - Electricity – 01 – M

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H01M 8/02 (2006.01) H01M 4/94 (2006.01) H01M 8/10 (2006.01)

Patent

CA 2589909

A fuel cell apparatus includes tandem storage tanks containing activation devices that release the oxidant gas and fuel gas to the fuel cell membrane when needed. The membrane assemblies surround the storage tanks, overlapping one another in a configuration more suited to use in environments with limited space than the traditional, stacked membrane assemblies. The activation devices are triggered by inertia to puncture membrane valves so that the oxidant gas and fuel gas is kept from the fuel cell membrane prior to inertial triggering and is supplied to the membrane after inertial triggering. The activation devices include spring loaded pivoting arms on supports that swing downward and outward upon subjecting the device to inertial forces.

La présente invention a trait à un appareil à piles à combustible comportant des réservoirs de stockage en tandem contenant des dispositifs d'activation qui libèrent le gaz comburant et gaz combustible vers la membrane de pile à combustible au besoin. Les ensembles de membranes entourent les réservoirs de stockage, se chevauchant mutuellement dans une configuration plus appropriée dans des environnements à espace limité que dans des ensembles de membranes superposées classiques. Les dispositifs d'activation sont déclenchés par inertie pour perforer les soupapes des membranes de sorte que le gaz comburant et gaz combustible est maintenu éloigné de la membrane de pile à combustible préalablement au déclenchement inertiel et est alimenté à la membrane après le déclenchement inertiel. Les dispositifs d'actionnement comporte des bras pivotants à ressorts sur des supports qui oscillent vers le bas et vers l'extérieur lorsqu'ils sont soumis à des forces d'inertie.

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