초록 ▼

A support structure for a gas turbine engine includes a support arm (214, 216) extending between a low pressure shaft (202) and a rotor. The support arm includes a fuse (220) having a low failure point. A high pressure stub shaft (270) axially and radially supports the low pressure shaft (202) after

A support structure for a gas turbine engine includes a support arm (214, 216) extending between a low pressure shaft (202) and a rotor. The support arm includes a fuse (220) having a low failure point. A high pressure stub shaft (270) axially and radially supports the low pressure shaft (202) after fuse failure. An axial gap (A) between a portion of the low pressure shaft and the stub shaft permits movement of the low pressure shaft after fuse failure. A radial gap (B) between the stub shaft (270) and the low pressure shaft (202) allows radial deflection of the low pressure rotor system after fuse failure.

대표청구항 ▼

[ What is claimed is:] [1.]1. A fan decoupler system for a gas turbine engine, said fan decoupler system comprising:a low pressure shaft comprising a lip;a high pressure shaft including an upstream end, a stub shaft, and a rotor disk, said high pressure shaft concentric with said low pressure shaft,

[ What is claimed is:] [1.]1. A fan decoupler system for a gas turbine engine, said fan decoupler system comprising:a low pressure shaft comprising a lip;a high pressure shaft including an upstream end, a stub shaft, and a rotor disk, said high pressure shaft concentric with said low pressure shaft, said stub shaft located at said high pressure shaft upstream end, said low pressure shaft lip configured to engage said stub shaft;a rotor connected to said low pressure shaft; anda support cone connected to said low pressure shaft, wherein said support cone is for supporting said rotor, said support cone including a fuse having a failure point below the failure point of the remaining support cone.