Patent ID: 11867069
Assignee: RTX CORPORATION
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A hybrid electric engine comprising:
a gas turbine engine comprising a low speed spool, a high speed spool, a fan section, a compressor section, a combustor section, and a turbine section, the low speed spool comprising a low pressure compressor and a low pressure turbine, and the high speed spool comprising a high pressure compressor and a high pressure turbine;
an electric generator configured to convert rotational power of the high speed spool or the low speed spool to electricity; and
a variable area turbine control system electrically connected to the electric generator, the variable area turbine control system being configured to adjust a cross-sectional area of a core flow path of the hybrid electric engine, the variable area turbine control system comprising:
a plurality of variable turbine vanes located in the turbine section; and
a variable area turbine actuator configured to rotate each of the plurality of variable turbine vanes to adjust the cross-sectional area of the core flow path of the hybrid electric engine, wherein the variable area turbine actuator is an electromechanical actuator; and

a power source electrically connected to the electric generator and the variable area turbine control system, wherein the variable area turbine control system is electrically connected to the electric generator through the power source and the power source being one of a battery; a capacitor; a supercapacitor; and an ultracapacitor;
wherein the variable area turbine actuator is configured to be powered only by electricity generated by the electric generator; and
a controller operably coupled to the electric generator and the variable area turbine control system, wherein the controller is configured to operate the variable area turbine control system and the controller is configured to rotate, using the variable area turbine actuator, each of the plurality of variable vanes to decrease the cross-sectional area of the core flow path through the turbine section of the hybrid electric engine to spoil engine thrust from the hybrid electric engine.