Support apparatus for disassembling and assembling gas turbine engine

Patent metadata

Field	Value
Publication number	US-2017191381-A1
Application number	US-201614988943-A
Country	US
Kind code	A1
Filing date	Jan 6, 2016
Priority date	Jan 6, 2016
Publication date	Jul 6, 2017
Grant date	—

Abstract

A support apparatus for disassembling and assembling a gas turbine engine includes an exhaust nozzle attaching and detaching device for guiding movement of an exhaust nozzle in an axis direction and including: a first guide jig detachably fixed to a casing; and a first holding tool detachably supporting the nozzle and engaged with the first guide jig, thereby enabling attaching and detaching the nozzle easily and securely while leaving the engine in a horizontal attitude. The apparatus also includes a low-pressure turbine attaching and detaching device guiding movement of a low-pressure turbine in the axis direction and including: a second guide jig detachably fixed to the casing; and a second holding tool detachably supporting the turbine and engaged with the second guide jig, thereby enabling attaching and detaching the turbine easily and securely while leaving the engine in the horizontal attitude.

First claim

1 . A support apparatus for disassembling and assembling a gas turbine engine housing a low-pressure shaft, a low-pressure turbine and an exhaust nozzle inside a cylindrical casing surrounding an axis of the gas turbine engine, the low-pressure shaft being disposed on the axis, the low-pressure turbine being fixed to an outer periphery of the low-pressure shaft, and the exhaust nozzle being disposed in a rear of the low-pressure turbine, the support apparatus comprising:
an exhaust nozzle attaching and detaching device configured to guide movement of the exhaust nozzle in a direction of the axis and including
a first guide jig which is detachably fixed to the casing, and
a first holding tool which detachably supports the exhaust nozzle and is engaged with the first guide jig; and
a low-pressure turbine attaching and detaching device configured to guide movement of the low-pressure turbine in the direction of the axis and including
a second guide jig which is detachably fixed to the casing, and
a second holding tool which detachably supports the low-pressure turbine and is engaged with the second guide jig.

2 . The support apparatus for disassembling and assembling a gas turbine engine according to claim 1 , wherein
the first guide jig and the second guide jig are fixed with a machined surface of the casing used as a reference surface.

3 . The support apparatus for disassembling and assembling a gas turbine engine according to claim 1 , wherein
the second holding tool includes an arc-shaped engagement portion which is engaged with blade ends of a plurality of rotor blades of the low-pressure turbine, the rotor blades being provided adjacent to one another in a peripheral direction of the low-pressure turbine.

4 . The support apparatus for disassembling and assembling a gas turbine engine according to claim 1 , further comprising
a protection tool which is detachably attached to the low-pressure turbine so as to cover a part of the low-pressure turbine which is to be exposed in a state where the exhaust nozzle is detached.

5 . The support apparatus for disassembling and assembling a gas turbine engine according to claim 2 , wherein
the second holding tool includes an arc-shaped engagement portion which is engaged with blade ends of a plurality of rotor blades of the low-pressure turbine, the rotor blades being provided adjacent to one another in a peripheral direction of the low-pressure turbine.

6 . The support apparatus for disassembling and assembling a gas turbine engine according to claim 2 , further comprising
a protection tool which is detachably attached to the low-pressure turbine so as to cover a part of the low-pressure turbine which is to be exposed in a state where the exhaust nozzle is detached.

7 . The support apparatus for disassembling and assembling a gas turbine engine according to claim 3 , further comprising
a protection tool which is detachably attached to the low-pressure turbine so as to cover a part of the low-pressure turbine which is to be exposed in a state where the exhaust nozzle is detached.

Assignees

• Honda Motor Co Ltd

Inventors

• Baba Atsushi
• Sato Tsuyoshi
• Obara Shinichi

Classifications

• F01D25/285 Primary

  Temporary support structures, e.g. for testing, assembling, installing, repairing; Assembly methods using such structures · CPC title

• F05D2230/68

  using auxiliary equipment for lifting or holding · CPC title

• F05D2230/70

  Disassembly methods · CPC title

• F01D25/28

  Supporting or mounting arrangements, e.g. for turbine casing · CPC title

• F05D2230/64

  using positioning or alignment devices for aligning or centring, e.g. pins · CPC title