US 12,187,442 B2
System for providing protection from icing using a fuel cell
Karin Prince, Toulouse (FR); and David Lavergne, Toulouse (FR)
Assigned to LIEBHERR-AEROSPACE TOULOUSE SAS, Toulouse (FR)
Appl. No. 18/030,797
Filed by LIEBHERR-AEROSPACE TOULOUSE SAS, Toulouse (FR)
PCT Filed Oct. 6, 2021, PCT No. PCT/EP2021/077521
§ 371(c)(1), (2) Date Apr. 7, 2023,
PCT Pub. No. WO2022/074040, PCT Pub. Date Apr. 14, 2022.
Claims priority of application No. 2010250 (FR), filed on Oct. 7, 2020.
Prior Publication US 2023/0382537 A1, Nov. 30, 2023
Int. Cl. B64D 15/06 (2006.01); H01M 8/0267 (2016.01); H01M 8/04701 (2016.01); B64D 41/00 (2006.01)
CPC B64D 15/06 (2013.01) [H01M 8/0267 (2013.01); H01M 8/04723 (2013.01); B64D 2041/005 (2013.01); H01M 2250/20 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A system for protecting an outer surface of an aircraft from icing, comprising at least a first fuel cell and a second fuel cell, the system comprising:
at least a first liquid circuit configured to cause a first cooling liquid of the first fuel cell to flow,
at least a second liquid circuit configured to cause a first icing protection liquid to flow,
at least a third liquid circuit configured to cause a second cooling liquid of the second fuel cell to flow,
at least a fourth liquid circuit configured to cause a second icing protection liquid to flow,
at least one first icing protection heat exchanger arranged on the outer surface of the aircraft to be protected and configured to have the first icing protection liquid pass through it when it flows in the second liquid circuit, and one second icing protection heat exchanger arranged on the outer surface of the aircraft to be protected and configured to have the second icing protection liquid pass through it when it flows in the fourth liquid circuit, and
at least a first liquid-liquid heat exchanger, in which the first cooling liquid forms a hot pass and the first icing protection liquid forms a cold pass, so as to reheat the first icing protection liquid by transmission of heat coming from the first cooling liquid of the first fuel cell, and a second liquid-liquid heat exchanger in which the second cooling liquid forms a hot pass and the second icing protection liquid forms a cold pass, so as to reheat the second icing protection liquid by transmission of heat coming from the second cooling liquid of the second fuel cell.