SUPPORT APPARATUS FOR DISASSEMBLING AND ASSEMBLING GAS TURBINE ENGINE

• US 20170191381A1
• Filed: 01/06/2016
• Published: 07/06/2017
• Est. Priority Date: 01/06/2016
• Status: Active Grant

• Current Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Original Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Inventors: Baba, Atsushi, Sato, Tsuyoshi, Obara, Shinichi
• Granted Patent: US 10,132,198 B2
• Time in Patent Office: Days
• CPC Class Codes: F01D 25/28 Supporting or mounting arrangements, e.g. for turbine casing
• CPC Class Codes: F01D 25/285 Temporary support structures, e.g. for testing, assembling, installing, repairing; Assembly methods using such structures
• CPC Class Codes: F05D 2230/68 using auxiliary equipment for lifting or holding
• CPC Class Codes: F05D 2230/70 Disassembly methods

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.

Claims

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.