TIE ROD FOR A GAS TURBINE ENGINE

• US 20130052006A1
• Filed: 08/29/2011
• Published: 02/28/2013
• Est. Priority Date: 08/29/2011
• Status: Active Grant

• Current Assignee: Rtx Corporation
• Original Assignee: United Technologies Corporation (Rtx Corporation)
• Inventors: Petty, Dale William
• Granted Patent: US 9,896,966 B2
• Time in Patent Office: Days
• US Class Current: 415/213.1
• CPC Class Codes: F01D 25/162 Bearing supports
• CPC Class Codes: F01D 25/24 Casings modified for heating or cooling F01D25/14; Casing parts, e.g. diaphragms, casing fastenings casings for rotary machines or engines in general F16M ; special arrangements in stators dealing with breaking-off of part of rotor F01D21/045
• CPC Class Codes: F01D 25/28 Supporting or mounting arrangements, e.g. for turbine casing
• CPC Class Codes: Y10T 29/49323 Assembling fluid flow directing devices, e.g., stators, diaphragms, nozzles
• CPC Class Codes: Y10T 403/46 Rod end to transverse side of member

Abstract

A tie rod includes a gusset which extends between a rod and a base.

Claims

1. A tie rod comprising:

a base;

a rod which extends from said base; and

a gusset which extends between said rod and said base.

2. The tie rod as recited in claim 1, wherein said rod is hollow.

3. The tie rod as recited in claim 1, wherein said rod extends perpendicular to said base.

4. The tie rod as recited in claim 1, wherein an end section of said rod is threaded.

5. The tie rod as recited in claim 1, wherein said gusset is generally triangular.

6. The tie rod as recited in claim 1, wherein said base includes a multiple of apertures.

7. A static structure of a gas turbine engine comprising:

an annular inner turbine exhaust case;

an annular outer turbine exhaust case; and

a multiple of tie rods which radially extend between said annular inner turbine exhaust case and said annular outer turbine exhaust case, at least one of said multiple of tie rods include a gusset.

8. The static structure as recited in claim 7, wherein said tie rod includes a base fastened to said annular inner turbine exhaust case.

9. The static structure as recited in claim 7, further comprising a tie rod nut threaded to an end section of each tie rod, said tie rod nut fastened to said annular outer turbine exhaust case.

10. The static structure as recited in claim 9, wherein said tie rod nut includes a multiple of holes arrayed in a circle.

11. The static structure as recited in claim 7, further comprising a vane structure between said annular outer turbine exhaust case and said annular inner turbine exhaust case, each of said multiple of tie rods extend through a vane of said vane structure.

12. The static structure as recited in claim 11, wherein said at least one of said multiple of tie rods includes a base fastened to said annular inner turbine exhaust case.

13. The static structure as recited in claim 12, further comprising a tie rod nut threaded to an end section of each tie rod, said tie rod nut fastened to said annular outer turbine exhaust case to center said annular inner turbine exhaust case within said annular outer turbine exhaust case.

14. The static structure as recited in claim 7, wherein said annular outer turbine exhaust case and said annular outer turbine exhaust case are located between a high turbine and a low turbine.

15. A method of assembling a multiple of tie rods into a gas turbine engine comprising:

positing a vane structure within an annular outer turbine exhaust case;

inserting a tie rod into at least one vane of the vane structure, the tie rod includes a gusset between a base and a rod which extends from the base;

securing the tie rod to an annular inner turbine exhaust case;

threading a tie rod nut to an end section of the tie rod; and

securing the tie rod nut to the annular inner turbine exhaust case.

16. The method as recited in claim 15, wherein securing the tie rod to the annular inner turbine exhaust case includes locating at least one fastener through a phone dial hole in the tie rod nut;

and threading the at least one fastener to the annular inner turbine exhaust case.

17. The method as recited in claim 15, wherein securing the tie rod to the annular inner turbine exhaust case includes inserting fasteners from an inner diameter thereof.

18. The method as recited in claim 15, wherein threading the tie rod nut to the end section of the tie rod centers the annular inner turbine exhaust case within the annular outer turbine exhaust case.