Inventors:
Magdy A. Kandil - Rockford IL, US
Laurence D. Vanek - Janesville WI, US
James L. Abbot - Rockford IL, US
Assignee:
Hamilton Sundstrand Corporation - Rockford IL
International Classification:
F02N 1104, F02N 1108, F02N 708, F02N 1700
US Classification:
290 31, 290 27, 290 36 R, 290 38 R, 290 46
Abstract:
A starter-generator for an aircraft engine comprises a dynamoelectric machine alternatively operable as a motor or as a generator, having a rotor. A support motor is coupled to the 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 dynamoelectric machine is operated as a motor. A constant speed transmission has an input adapted to be connected to the engine and an output to be connected to the rotor. The unit provides a desired speed relation between input and output. 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 including the constant speed transmission.