Patent ID: 9045996
Filing Date: 2015-06-02
Classification: F01D,F02C,F05B,F05D

Abstract:
1. A method of increasing the operational efficiency of an operating gas turbine engine, comprising the steps of: supplying mechanical power from a first spool of the operating gas turbine engine to a first electrical machine to thereby generate electrical power using the first electrical machine; supplying mechanical power from a second spool of the operating gas turbine engine to a second electrical machine to thereby generate electrical power using the second electrical machine; sensing one or more operational parameters of the operating gas turbine engine; and based on the one or more sensed operational parameters, ceasing to generate electrical power using the second electrical machine, and instead supplying at least a part of the electrical power generated by the first electrical machine to the second electrical machine to thereby generate and supply mechanical output power to the second spool of the operating gas turbine engine.