Integrated boost cavity ring generator for turbofan and turboshaft engines

摘要

An electrical generator for extraction of electrical power from a gas turbine engine (10) includes a rotor portion (22) and a stator portion (24) disposed within a booster cavity (14) of the gas turbine engine (10). The rotor portion (22) is rotatably supported about the stator portion (24). The stator portion (24) rigidly is supported within the booster cavity (14). The rotor portion (22) has a plurality of poles circumferentially arranged opposite the stator portion (24). The stator portion (24) includes a plurality of coil portions (28) disposed about an outer periphery of the stator portion (24) adjacent to the stator portion (24). The stator (24) and rotor portions (22) are configured to generate electrical power when the rotor portion (22) is rotated about the stator portion (24) by a shaft of the gas turbine engine (10) to induce electrical currents in the coil portions (28). The electrical generator extracts electric power from the turbine engine to supplement primary electrical generation sources of the engine (10).