US 11,913,388 B2
Cabin blower system
Ibrahim Eryilmaz, Bedford (GB); and Vasileios Pachidis, Milton Keynes (GB)
Assigned to ROLLS-ROYCE plc, London (GB)
Filed by ROLLS-ROYCE plc, London (GB)
Filed on Apr. 4, 2022, as Appl. No. 17/712,924.
Claims priority of application No. 20210100298 (GR), filed on May 5, 2021; and application No. 2109322 (GB), filed on Jun. 29, 2021.
Prior Publication US 2022/0355939 A1, Nov. 10, 2022
Int. Cl. F02C 9/18 (2006.01); F02C 7/32 (2006.01); F01D 25/36 (2006.01); B64D 13/06 (2006.01); B64D 27/02 (2006.01); F01D 25/34 (2006.01); F01D 15/10 (2006.01); F01D 21/14 (2006.01); F01D 21/12 (2006.01)
CPC F02C 9/18 (2013.01) [F01D 25/36 (2013.01); F02C 7/32 (2013.01); B64D 2013/0644 (2013.01); B64D 2027/026 (2013.01); F01D 15/10 (2013.01); F01D 21/12 (2013.01); F01D 21/14 (2013.01); F01D 25/34 (2013.01); F05D 2220/76 (2013.01); F05D 2260/42 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A gas turbine engine for an aircraft, the gas turbine engine comprising:
a cabin blower and rotor bow mitigation system, the cabin blower and rotor bow mitigation system comprising:
a cabin blower compressor mechanically coupled to one or more spools of the gas turbine engine;
an electric machine mechanically coupled to the cabin blower compressor; and
a controller configured to control the cabin blower and rotor bow mitigation system so that:
in a cabin blower mode of operation, rotation of the cabin blower compressor is mechanically driven by the one or more spools, wherein the rotation of the cabin blower compressor in the cabin blower mode compresses air received through a manifold and provides a compressed output flow of air for delivery to a cabin of the aircraft;
in a rotor bow mitigation mode of operation, rotation of the cabin blower compressor is driven by the electric machine using electrical power from an electrical power source, wherein the rotation of the cabin blower compressor in the rotor bow mitigation mode sucks or blows a flow of air through a core of the gas turbine engine to remove heat from the core.