US 12,337,974 B2
Propulsion system cooling control
Frederick M. Schwarz, Glastonbury, CT (US); and Michael Winter, New Haven, CT (US)
Assigned to RTX CORPORATION, Farmington, CT (US)
Filed by RTX Corporation, Farmington, CT (US)
Filed on Apr. 14, 2022, as Appl. No. 17/720,708.
Application 17/720,708 is a division of application No. 16/360,277, filed on Mar. 21, 2019, granted, now 11,305,879.
Claims priority of provisional application 62/656,453, filed on Apr. 12, 2018.
Claims priority of provisional application 62/656,451, filed on Apr. 12, 2018.
Claims priority of provisional application 62/653,602, filed on Apr. 6, 2018.
Claims priority of provisional application 62/653,599, filed on Apr. 6, 2018.
Claims priority of provisional application 62/653,604, filed on Apr. 6, 2018.
Claims priority of provisional application 62/647,055, filed on Mar. 23, 2018.
Claims priority of provisional application 62/647,060, filed on Mar. 23, 2018.
Prior Publication US 2022/0242581 A1, Aug. 4, 2022
Int. Cl. F25J 1/00 (2006.01); B01D 45/08 (2006.01); B01D 53/00 (2006.01); B03C 1/28 (2006.01); B64D 13/06 (2006.01); B64D 13/08 (2006.01); B64D 27/12 (2006.01); B64D 33/08 (2006.01); F01D 15/00 (2006.01); F01D 25/12 (2006.01); F02C 6/08 (2006.01); F02C 7/141 (2006.01); F02C 7/143 (2006.01); F02C 7/16 (2006.01); F02C 7/18 (2006.01); F02C 9/18 (2006.01); F02K 3/06 (2006.01); F17C 7/02 (2006.01); F17C 7/04 (2006.01); F25B 9/14 (2006.01); F25J 3/04 (2006.01); B64D 37/32 (2006.01)
CPC B64D 13/08 (2013.01) [B01D 45/08 (2013.01); B01D 53/002 (2013.01); B03C 1/288 (2013.01); B64D 13/06 (2013.01); B64D 27/12 (2013.01); B64D 33/08 (2013.01); F01D 15/00 (2013.01); F01D 25/12 (2013.01); F02C 6/08 (2013.01); F02C 7/141 (2013.01); F02C 7/143 (2013.01); F02C 7/16 (2013.01); F02C 7/185 (2013.01); F02C 9/18 (2013.01); F02K 3/06 (2013.01); F17C 7/02 (2013.01); F17C 7/04 (2013.01); F25B 9/14 (2013.01); F25J 1/0012 (2013.01); F25J 3/04254 (2013.01); F25J 3/04975 (2013.01); B64D 2013/0614 (2013.01); B64D 2013/0659 (2013.01); B64D 2013/0674 (2013.01); B64D 2013/0677 (2013.01); B64D 2013/0681 (2013.01); B64D 37/32 (2013.01); F05D 2220/323 (2013.01); F05D 2260/205 (2013.01); F05D 2260/211 (2013.01); F05D 2260/232 (2013.01); F05D 2260/60 (2013.01); F25J 2240/42 (2013.01); F25J 2240/80 (2013.01); F25J 2290/70 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A method comprising:
operating a ground-based cryogenic cooling system to produce a volume of liquid air by performing a plurality of operations comprising:
receiving an airflow at a heat exchanger system to produce a cooled airflow based on cooling provided through a cooling air intake;
producing compressed air from the cooled airflow by a compressor responsive to rotation driven by an electric motor through a first shaft coupled to a gearbox;
cooling the compressed air through the heat exchanger system based on cooling provided through the cooling air intake;
removing water from the cooled compressed air to produce dried cool air, wherein the water is sprayed proximate to an intake of the heat exchanger system to further cool the cooling air intake;
expanding the dried cool air through a turbine assembly coupled to the gearbox by a second shaft to produce chilled air;
condensing the chilled air into the liquid air; and
urging the liquid air through a feeder line into a cryogenic cartridge;
pressurizing and storing the liquid air in the 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.