david mccandless wrote:

Hi Paul and Readers, for my own education. By what method is the electric assistance
given? I can think of two possibilities.

1. Electric motor has direct connection to turbocharger shaft at low turbo rpm, or

2.Electric motor drives a separate compressor which feeds the inlet to the main
compressor thereby reducing the turbo load consequently causing a quicker spoolup.

 Interesting subject, though of little use in aircraft; solves a problem we do not
have.  Dave McC

The motor is concentric with the turbo shaft.

Paul Lamar
 
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