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US 2019/0293346 A1Published application
Propulsion system cooling control
AssigneeUnited Technologies Corporation
InventorsFrederick M. Schwarz, Michael Winter
Life of this patent
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Abstract
A propulsion system includes an electric fan propulsion motor with a plurality of propulsion motor windings. The propulsion system also includes a means for controlling a flow rate of a working fluid through a cryogenic working fluid flow control assembly to the propulsion motor windings.
Claims20
A propulsion system comprising:
- an electric fan propulsion motor comprising a plurality of propulsion motor windings;
- and
- a means for controlling a flow rate of a working fluid through a cryogenic working fluid flow control assembly to the propulsion motor windings.
A method comprising:
- operating a ground-based cryogenic cooling system to produce a volume of liquid air;
- pressurizing and storing the liquid air in a cryogenic cartridge;
- coupling the cryogenic cartridge to a cryogenic liquid distribution system on an aircraft;
- and
- selectively releasing the liquid air from the cryogenic cartridge through the cryogenic liquid distribution system for an aircraft use.
2 more elements
Dependencies are inferred from the claim text.