Air system for aircraft propulsion system electric machine

An assembly for an aircraft propulsion system, comprising:

• a compressor section;
• a combustor section;
• a turbine section;
• a flowpath comprising a flowpath inlet and a flowpath exhaust, the flowpath extending through the compressor section, the combustor section and the turbine section from the flowpath inlet to the flowpath exhaust;
• a tail cone structure forming an inner peripheral boundary of the flowpath at the flowpath exhaust, the tail cone structure comprising an internal volume;
• an electric machine disposed within the internal volume;
• and
• an electric fan disposed within the tail cone structure, the electric fan configured to flow air within the internal volume such that the air cools the electric machine.

An assembly for an aircraft propulsion system, comprising:

• a compressor section;
• a combustor section;
• a turbine section;
• a flowpath comprising a flowpath inlet and a flowpath exhaust, the flowpath extending through the compressor section, the combustor section and the turbine section from the flowpath inlet to the flowpath exhaust;
• a tail cone structure forming an inner peripheral boundary of the flowpath at the flowpath exhaust, the tail cone structure comprising an internal volume;
• an electric machine disposed within the internal volume;
• and
• an air system configured to direct air into the tail cone structure to cool the electric machine, the air system comprising a plurality of electric air movers arranged circumferentially about an axis in an array.