Patent ID: 9657645
Date: 2017-05-23
CPC Classifications: F01D,F02C,F05D,H02K

Claim:
1. A gas turbine engine comprising: a first electric machine having a single rotor dual stator configuration for operating as a starter-generator for the engine, the starter-generator having a first starting channel and a second starting channel; a second electric machine independent from the starter-generator having a single rotor dual stator configuration for operating as a motor to drive accessories of the engine, the motor having a first accessory channel and a second accessory channel; a dual channel motor drive unit coupled to the second electric machine, the motor drive unit having a first motor drive channel and a second motor drive channel; a dual channel power control unit coupled to the first electric machine and the motor drive unit, the power control unit having a first power control channel and a second power control channel; a dual channel full authority digital engine control (FADEC) coupled to the dual channel power control unit and the dual channel motor drive unit; and at least two accessories, a first of the two accessories coupled to the single rotor of the single rotor dual stator configuration of the second electric machine, a second of the two accessories coupled to the single rotor of the single rotor dual stator configuration of the second electric machine, the at least two accessories driven by motive power from the single rotor of the second electric machine; wherein the dual channel FADEC is configured to control the first starter channel via the first power control channel and to control the second starter channel via the second power control channel, and the dual channel FADEC is configured to control the first accessory via the first motor drive channel and to control the second accessory via the second motor drive channel.