US 12,345,164 B2
Rotors positioned outside stators in embedded generators
Brian S. Maners, Indianapolis, IN (US)
Assigned to Rolls-Royce North American Technologies, Inc., Indianapolis, IN (US)
Filed by Rolls-Royce North American Technologies, Inc., Indianapolis, IN (US)
Filed on Oct. 6, 2023, as Appl. No. 18/482,376.
Prior Publication US 2025/0116201 A1, Apr. 10, 2025
This patent is subject to a terminal disclaimer.
Int. Cl. F01D 15/10 (2006.01); B64D 27/35 (2024.01)
CPC F01D 15/10 (2013.01) [B64D 27/35 (2024.01); F05D 2220/76 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A turbine engine comprising:
a core section comprising:
a low pressure turbine that drives a low pressure spool that rotates about a longitudinal axis of the turbine engine;
a high pressure turbine that drives a high pressure spool; and
a compressor rotated by the high pressure spool;
a core vane assembly comprising a plurality of core vanes configured to shape a core flow of the turbine engine;
a fan comprising a plurality of radially distributed blades, the fan connected to the low pressure spool and rotated by the low pressure spool, rotation of the plurality of radially distributed blades providing thrust to a vehicle that includes the turbine engine; and
an electrical generator positioned between the fan and the compressor, wherein the electrical generator is positioned radially inwards of the core vane assembly, wherein an outer diameter of the electrical generator is greater than or equal to 70% of a diameter of the core vane assembly, and wherein the electrical generator comprises:
a rotor concentric with and rotated via the low pressure spool, the rotor configured to rotate about the longitudinal axis; and
a stator positioned radially within the rotor and configured to electromagnetically interact with the rotor to generate power.