Hydrogen-cooled environmental control system
AssigneeHamilton Sundstrand Corporation
InventorsLeo J. Veilleux, JR., Lubomir A. Ribarov
Life of this patent
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Abstract
A hydrogen-cooled environmental control system (ECS) is provided and includes a pressurizing system including an electric compressor that compresses RAM air into pressurized warm RAM air for a cabin and a heat exchanger in which the pressurized warm RAM air is selectively cooled by hydrogen flown from a hydrogen fuel tank toward a combustor in accordance with conditions of the pressurized warm RAM air prior to the pressurized warm RAM air reaching the cabin.
Claims20
A hydrogen-cooled environmental control system (ECS), comprising:
- a pressurizing system comprising an electric compressor that compresses RAM air into pressurized warm RAM air for a cabin;
- and
- a heat exchanger in which the pressurized warm RAM air is selectively cooled by hydrogen flown from a hydrogen fuel tank toward a combustor in accordance with conditions of the pressurized warm RAM air prior to the pressurized warm RAM air reaching the cabin.
A method of operating a hydrogen-cooled environmental control system (ECS), the method comprising:
- providing a pressurizing system comprising an electric compressor that compresses RAM air into pressurized warm RAM air for a cabin;
- and
- selectively cooling the pressurized warm RAM air in a heat exchanger with hydrogen flown from a hydrogen fuel tank to a combustor in accordance with conditions of the pressurized warm RAM air prior to the pressurized warm RAM air reaching the cabin.
A hydrogen-cooled environmental control system (ECS), comprising:
- a bleed air system providing pressurized warm bleed air for a cabin;
- a pressurizing system in parallel with the bleed air system and comprising an electric compressor that compresses RAM air into pressurized warm RAM air for the cabin;
- and
- a heat exchanger in which at least one of the pressurized warm bleed air and the pressurized warm RAM air is selectively cooled by hydrogen flown from at least one hydrogen fuel tank toward at least one combustor in accordance with respective conditions of the pressurized warm bleed air and the pressurized warm RAM air prior to the pressurized warm bleed air and the pressurized warm RAM air reaching the cabin.
Dependencies are inferred from the claim text.