Hamilton Sundstrand Corporation

James L Abbot

Laurence D Vanek

Magdy A Kandil

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.

Integrated starter generator drive having selective torque converter and constant speed transmission for aircraft having a constant frequency electrical system

Growing community of inventors

Rockford, IL, United States of America

James L Abbot