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1. (WO2016060686) GAS TURBINE SPINDLE BOLT WITH SHRINK FITTED SLEEVE

Pub. No.:    WO/2016/060686    International Application No.:    PCT/US2014/061134
Publication Date: Fri Apr 22 01:59:59 CEST 2016 International Filing Date: Sat Oct 18 01:59:59 CEST 2014
IPC: F01D 5/06
Applicants: SIEMENS AKTIENGESELLSCHAFT
SIEMENS ENERGY, INC.
Inventors: GURAO, Manish, S.
LIGHT, Kevin, M.
BROOKS, Robert, T.
Title: GAS TURBINE SPINDLE BOLT WITH SHRINK FITTED SLEEVE
Abstract:
A spindle bolt structure (60) including a spindle bolt (42a) having a shaft portion (68) extending through turbine disks(30a, 30b, 30c, 30d) of a gas turbine engine (10). The spindle bolt (42a) extends through the bolt hole (58) in a seal disk (36) and includes a bolt shoulder (62s) having a diameter (Ds) greater than a diameter of the shaft portion (DB) and having opposing axial bolt shoulder ends (64, 66) located within the bolt hole (58). A cylindrical sleeve (70) is provided having an interior sleeve surface (72) positioned in engagement with an outer surface (74) of the bolt shoulder (62s) and having an outer sleeve surface (76) engaged on the seal disk (36) within the bolt hole (58). The sleeve (70) includes opposing axial sleeve ends (82, 84) that are axially aligned with the axial bolt shoulder ends (64, 66).