Patent ID: 11913388
Assignee: ROLLS-ROYCE PLC
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC B  F  Y | IPC B  F

Claim 0:
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.