Abstract: A starter-generator for an aircraft engine comprises a variable dynamoelectric machine alternatively operable as a motor or as a generator, having a rotor. A support motor is coupled to the variable dynamoelectric machine to assist the machine. A torque converter selectively couples and decouples the rotor to the engine, coupling the rotor to the engine at some point when the dynamoelectric machine is operated as a motor. The engine may be started by the dynamoelectric machine when operated as a motor through a first power train including the torque converter and may drive the dynamoelectric machine as a generator through a second power train.
Type:
Grant
Filed:
June 24, 2002
Date of Patent:
January 4, 2005
Assignee:
Hamilton Sundstrand Corporation
Inventors:
Magdy A. Kandil, Keith R. Magnus, Don Baker