Patent ID: 9664050
Date: 2017-05-30
CPC Classifications: F01D,F04D,F05D

Claim:
1. An electronically-controlled turbomachine (ECT), comprising: a shaft having a turbine end and a compressor end with a turbine wheel coupled onto the turbine end of the shaft, the shaft defining an exterior taper with a diameter of the exterior taper decreasing monotonically in a direction moving away from the turbine wheel; a rotor mounted onto the shaft, the rotor including a rotor core with an end of the rotor core defining an interior taper having an interior diameter decreasing monotonically in the direction moving away from the turbine wheel, the interior taper of the rotor core engaging and mating with the exterior taper of the shaft; a first bearing having a first internal diameter, the first bearing being mounted on the shaft between the turbine wheel and the rotor; and a second bearing having a second internal diameter, the second bearing being mounted on the shaft between the rotor and the compressor end of the shaft wherein the first diameter is greater than the second diameter.