Gas turbine engine with electric machine in engine core

An assembly for a gas turbine engine, comprising:

• an engine core including a first rotating structure, a second rotating structure, a combustor and a flowpath, the first rotating structure including a first structure turbine rotor, and the second rotating structure including a second structure compressor rotor, a second structure turbine rotor and a second structure shaft connecting the second structure compressor rotor to the second structure turbine rotor, wherein the second structure compressor rotor, the combustor, the second structure turbine rotor and the first structure turbine rotor are arranged sequentially along the flowpath;
• an electric machine arranged within the engine core, the electric machine including an electric machine rotor and an electric machine stator adjacent the electric machine rotor, the electric machine rotor rotatable with the second rotating structure and located between the second structure compressor rotor and the first structure turbine rotor;
• a first bearing and a second bearing rotatably supporting the second rotating structure, wherein the electric machine is disposed between the first bearing and the second bearing;
• and
• a lubrication system configured to direct lubricant through a first internal volume of the electric machine stator and a second internal volume of the electric machine rotor, in series, from the second internal volume through both a third internal volume of the first bearing and a fourth internal volume of the second bearing, in parallel, and from both the third internal volume and the fourth internal volume to a fifth internal volume of a lubricant collector,
• wherein the electric machine and the first bearing are disposed within a same bearing compartment.