Catalytic combustors keeping contained medium warm in response to hydrostatic valve
The medium, such as water, of a container, such as a fuel cell accumulator, is kept above freezing by a hydrogen/oxygen catalytic combustor fed hydrogen from a source comprising a mechanical thermostatic valve in thermal communication with the container and connected to a hydrogen supply. The combus...
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| Main Authors | , , , |
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| Format | Patent |
| Language | English |
| Published |
12.08.2008
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| Online Access | Get full text |
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| Summary: | The medium, such as water, of a container, such as a fuel cell accumulator, is kept above freezing by a hydrogen/oxygen catalytic combustor fed hydrogen from a source comprising a mechanical thermostatic valve in thermal communication with the container and connected to a hydrogen supply. The combustor may comprise an ejector having hydrogen through its primary inlet drawing air through a secondary inlet. The combustor may comprise a diffusion combustor having a catalyst spaced from a heating surface and a diffusion control plate low partial pressure of oxygen at the catalyst causing diffusion through the barrier. Water vapor from combustion condenses on a surface and is led by hydrophilic woven carbon paper to wicking material, which has smaller pores than the carbon paper, which leads the water downwardly, through a disk and plugs to atmospheric air. The noble metal catalyst mixture includes TEFLON® to permit water generated by combustion to flow by gravity out of the catalyst. |
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