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US 10,801,410 B2Granted
Thermal management of tail cone mounted generator
AssigneeRaytheon Technologies Corporation
InventorGary D. Roberge
Life of this patent
Estimating the term…
Abstract
A gas turbine engine includes a turbine rotor connected to a main compressor rotor. A tail cone is mounted inward of an exhaust core flow. A generator rotor is adjacent a generator stator. The generator rotor and stator are mounted within the tail cone. A passage connects a bypass flow path to the tail cone. A cooling air compressor is operable within the passage. The turbine rotor drives a shaft to drive the generator rotor and the cooling compressor. A method is also disclosed.
Claims19
A gas turbine engine comprising:
- a turbine rotor connected to a main compressor rotor;
- a tail cone mounted inward of an exhaust core flow;
- a generator rotor adjacent a generator stator, said generator rotor and stator being mounted within said tail cone;
- a passage connecting a bypass flow path to said tail cone;
- a cooling air compressor operable within said passage;
- and
- said turbine rotor driving a shaft to drive said generator rotor and said cooling compressor.
4 more elements
A gas turbine engine comprising:
- a turbine rotor connected to a main compressor rotor;
- a tail cone mounted inward of an exhaust core flow path;
- a generator rotor adjacent a generator stator, said generator rotor and said generator stator being mounted within said tail cone;
- a passage connecting a bypass flowpath to said tail cone;
- a cooling air compressor operable within said passage;
- means for powering said cooling air compressor and said generator rotor.
3 more elements
A method of operating a gas turbine comprising the steps of:
- driving a compressor rotor by a turbine rotor;
- a shaft driven by said turbine rotor driving a generator rotor, said generator rotor positioned adjacent a generator stator, and said generator rotor and said generator stator being mounted within a tail cone;
- and
- delivering cooling air to said generator and within said tail cone, by providing cooling air to a cooling air compressor, said cooling air compressor being connected to deliver air to said tail cone.
1 more element
Dependencies are inferred from the claim text.