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US 11,444,295 B2Granted
Multi-stage turbocharging compressor for fuel cell systems
AssigneeZeroAvia, Inc.
InventorValery Miftakhov
Life of this patent
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Abstract
An aircraft power plant comprising novel air management features for high-power fuel cell applications, the features combine supercharging and turbocharging elements with air and hydrogen gas pathways, utilize novel airflow concepts and provide for much stronger integration of various fuel cell drive components.
Claims12
A method of boosting power in an aircraft fuel cell system, comprising:
- providing a first stage compressor and turbo assembly fed from ambient air at a pressure of less than one bar and excess oxygen from a fuel cell to produce an output of compressed air at a greater pressure than ambient air;
- feeding the compressed air from the first stage and feeding oxygen from an oxygen supply into a second stage compressor and turbo assembly to produce a pure oxygen output and an output of compressed air at a pressure greater than the compressed air from the first stage;
- feeding the compressed air from the second stage and feeding hydrogen from a hydrogen supply into a third stage compressor and turbo assembly to produce a pure hydrogen output and an output of compressed air at a pressure greater than the compressed air from the second stage;
- combining the pure oxygen from the second stage compressor and turbo assembly and the output of compressed air from the third stage compressor and turbo assembly and feeding the combination into one side of the fuel cell;
- and
- feeding the pure hydrogen from the third stage compressor and turbo assembly into an opposite side of the fuel cell.
3 more elements
Dependencies are inferred from the claim text.