US 12,351,326 B2
Power generation system comprising a fuel cell
Sai Kalyan Yelike, Cork (IE); Paolo Grasso, Cork (IE); and Grzegorz Kruczek, Gliwice (PL)
Assigned to HAMILTON SUNDSTRAND CORPORATION, Charlotte, NC (US)
Filed by Hamilton Sundstrand Corporation, Charlotte, NC (US)
Filed on Apr. 9, 2024, as Appl. No. 18/630,419.
Claims priority of application No. 23461555 (EP), filed on Apr. 12, 2023.
Prior Publication US 2024/0343400 A1, Oct. 17, 2024
Int. Cl. B64D 27/33 (2024.01); B64D 27/355 (2024.01); B64D 33/10 (2006.01); B64D 13/08 (2006.01)
CPC B64D 27/33 (2024.01) [B64D 27/355 (2024.01); B64D 33/10 (2013.01); B64D 13/08 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A power generation system for an aircraft, the power generation system comprising:
a storage tank for storing hydrogen;
a fuel cell configured to generate power from the hydrogen;
a fuel supply line configured to supply the hydrogen from storage tank to the fuel cell;
a fresh air supply line configured to supply air to a cabin air supply system;
an air turbine, wherein the fresh air supply line passes through the air turbine such that air turbine generates power from the air in use;
a fuel-air heat exchange system;
wherein the fuel supply line and the air supply line pass through the fuel-air heat exchange system such that the hydrogen cools the air in use;
wherein the fuel-air heat exchange system comprises:
a separator heat exchanger to pass heat from the air to the hydrogen; and
a separator downstream of or combined with the separator heat exchanger wherein the separator is configured to separate water from the air;
the power generation system further comprising:
a fuel cell air supply configured to supply air to the fuel cell, wherein the fuel cell air supply is configured to receive air from a splitter in the fresh air supply line;
wherein the air turbine is a first turbine downstream of the separator.