Jaspal S Brar

US Patent:

20050202292, Sep 15, 2005

Filed:

Mar 10, 2005

Appl. No.:

11/075892

Inventors:

William Richards - Springfield VA, US
Alan Volker - Springfield VA, US
Jaspal Brar - Burke VA, US

International Classification:

H01M008/04

US Classification:

429022000, 429034000, 429023000

Abstract:

A portable proton exchange membrane fuel cell power supply system has a high pressure hydrogen gas supply that is provided from hydrogen storage cylinders that are enclosed in a case that has through holes for ventilation to prevent hydrogen gas concentrations from reaching explosive levels. Enclosed in a second case are a fuel cell stack, control unit, variable speed air compressor and power inverter. The cases incorporate lightweight, high-strength non-metallic materials and foam insulation to render the contents shock resistant. In operation a hydrogen gas connection line is made to extend between the hydrogen cylinders and the fuel cell that is connected through quick disconnect valves. The compressor is also connected to the fuel cell through a quick disconnect valve. Start up of the fuel cell is accomplished with a battery supplying power to the compressor while hydrogen gas is supplied at the same time.