公开(公告)号：US20250092799A1

公开(公告)日：2025-03-20

申请号：US18814893

申请日：2024-08-26

Applicant: ROLLS-ROYCE plc

Inventor： Russell ADKINS ,  Mark SPRUCE ,  Christopher D. JONES ,  Stephen C. DREW

IPC: F01D25/00

Abstract: A shaft for a gas turbine engine includes a composite tube including a plurality of grooves extending along a longitudinal axis of the shaft. The shaft has a load fuse mechanism that has at least one metallic coupling that has a plurality of splines extending along the longitudinal axis of the shaft. Each of the plurality of splines is received within and engages with a corresponding groove of the composite tube to form a preloaded interference fit between the load fuse mechanism and the composite tube. The at least one metallic coupling includes a first portion defining a first diameter and a second portion extending from the first portion along the longitudinal axis. The second portion defines a second diameter that is greater than the first diameter. The second portion has a smooth annular outer surface devoid of any splines.