Patent ID: 9410446
Filing Date: 2016-08-09
CPC Classification: F01D,F05D

Claim Text:
1. A turbine engine, comprising: a first bearing on a first end of a unitary tie shaft; an upstream hub threadably engaged with the tie shaft; a compressor rotor stack supported by and operatively associated with the tie shaft and abutting the upstream hub; a middle support member abutting the compressor rotor stack, the middle support member having a downstream hub and a soft spring kickstand; a high pressure compressor coupling nut abutting the soft spring kickstand and threadably engaged with the tie shaft; a turbine rotor stack operatively associated with the tie shaft and abutting the downstream hub; a turbine rotor arm operatively associated with the turbine rotor stack and interferingly fitting with the tie shaft; a high pressure turbine lock nut threadably engaged with the tie shaft and abutting the turbine rotor arm; an intermediary sleeve interferingly fitting with the turbine rotor arm; a second bearing having inner and outer races, the inner race interferingly fitting with an outside diameter of the intermediary sleeve; and a downstream lock nut threadably engaged with the tie shaft and abutting the high pressure turbine lock nut.