Patent ID: 6729140
Filing Date: 2004-05-04
Classification: F01D,F02C,F23R,H02K

Abstract:
A gas turbine engine comprising an electrical machine, wherein the electrical machine comprises a rotating part and a fixed part, the rotating part is provided by the rotating blade ring, the rotating blade ring comprises a plurality of blades, each blade having an extremity of magnetically permeable material, a leading edge and a trailing edge, the fixed part comprises a casing having an array of circumferentially spaced stators thereabout, each stator comprising excitation coils having a first end and a second end; wherein in a first position the leading edge of one blade is radially aligned with a first end of a first stator and the trailing edge of another blade is radially aligned with the second end of the first stator thereby providing a substantially continuous magnetic flux path capable of generating an electrical output.