APPARATUS AND METHOD FOR PROCESSING A SEALING ELEMENT LOCATED WITHIN THE HOUSING OF A GAS TURBINE

• US 20130167375A1
• Filed: 11/15/2012
• Published: 07/04/2013
• Est. Priority Date: 11/18/2011
• Status: Abandoned Application

• Current Assignee: MTU Aero Engines GmbH (MTU)
• Original Assignee: MTU Aero Engines GmbH (MTU)
• Inventors: Seidel, Frank, ROESING, Juergen, Weidlich, Niels
• Application Number:
  US13/677,907
• Publication Number:
  US 20130167375A1
• Time in Patent Office: Days
• US Class Current: 29/888.3
• CPC Class Codes: B23P 15/00 Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
• CPC Class Codes: B23P 6/002 Repairing turbine components, e.g. moving or stationary blades, rotors, B23P6/045 takes precedence
• CPC Class Codes: B24B 23/08 Portable grinding machines designed for fastening on workpieces or other parts of particular section, e.g. for grinding commutators
• CPC Class Codes: F01D 11/00 Preventing or minimising internal leakage of working-fluid, e.g. between stages sealings in general F16J ; sealing arrangements for transition ducts of combustor cans F01D9/023
• CPC Class Codes: F01D 25/285 Temporary support structures, e.g. for testing, assembling, installing, repairing; Assembly methods using such structures
• CPC Class Codes: F01D 5/005 Repairing methods or devices
• CPC Class Codes: F04D 29/164 of an axial flow wheel
• CPC Class Codes: F04D 29/644 especially adapted for elastic fluid pumps
• CPC Class Codes: Y10T 29/49297 Seal or packing making
• CPC Class Codes: Y10T 29/51 Plural diverse manufacturing apparatus including means for metal shaping or assembling

Abstract

A machining or processing apparatus (14) for machining or processing a sealing element (16) located within a housing (12) of a gas turbine (10), the machining or processing apparatus (14), at least in the partially assembled state of the gas turbine (10), being at least partly introducible through a port (22) of the housing (12) into an interior space (24) of the gas turbine (10) and including a machining or processing device (15) which allows work to be performed on the sealing element (16) upon introduction of the machining or processing apparatus (14) under relative movement of the machining or processing device (15) and the sealing element (16). In addition, a method for machining or processing a sealing element (16) located within a housing (12) of a gas turbine (10).

Claims

1-14. -14. (canceled)

15. A machining or processing apparatus for machining or processing a sealing element located within a housing of a gas turbine, the machining or processing apparatus, at least in the partially assembled state of the gas turbine, being at least partly introducible through a port of the housing into an interior space of the gas turbine, the machining or processing device comprising:

a machining or processing device capable, upon introduction through the port, of performing work on the sealing element under relative movement of the machining or processing device and the sealing element.

16. The machining or processing apparatus as recited in claim 15 wherein the sealing element is fixed to the housing and/or the sealing element fixed to the rotor and/or mountable on the housing and/or on a rotor of the gas turbine.

17. The machining or processing apparatus as recited in claim 15 further comprising a holding device joined to the machining or processing device, the holding device allowing the machining or processing apparatus to be detachably secured to a component of the gas turbine.

18. The machining or processing apparatus as recited in claim 17 wherein the holding device is configured for releasably fixing the machining or processing apparatus to the housing and/or to the rotor.

19. The machining or processing apparatus as recited in claim 18 wherein the holding device is configured for releasably fixing the machining or processing apparatus between adjacent blades of the rotor.

20. The machining or processing apparatus as recited in claim 17 wherein the holding device includes a flexible holding member whose volume can be increased to secure the machining or processing apparatus and reduced to release the machining or processing apparatus, and/or includes a magnet and/or includes a fixing clamp.

21. The machining or processing apparatus as recited in claim 20 wherein the holding device includes a switchable magnet.

22. The machining or processing apparatus as recited in claim 20 wherein the holding device includes the flexible holding member, the flexible holding member including a fluid sack.

23. The machining or processing apparatus as recited in claim 15 wherein the machining or processing device includes at least one of the following:

a cutting tool to change the shape of the sealing element;

a spatula for applying and/or distributing a material to be applied to the sealing element;

a material reservoir for preparing the material to be applied to the sealing element;

a curing device for curing material applied to the sealing element;

an energy source for supplying the machining or processing apparatus with operating energy;

a control or regulating device for controlling and/or regulating the machining or processing apparatus; and

a feed line via which material can be transported to the sealing element and applied through a discharge orifice to the sealing element.

24. The machining or processing apparatus as recited in claim 23 wherein the machining or processing device includes a cutting tool, the cutting tool including a grinding tool.

25. The machining or processing apparatus as recited in claim 23 wherein the machining or processing device includes the energy source, the energy source being a battery.

26. The machining or processing apparatus as recited in claim 23 wherein the machining or processing device includes the feed line, the feed line including tubing.

27. The machining or processing apparatus as recited in claim 23 wherein the machining or processing device includes a grinding tool.

28. The machining or processing apparatus as recited in claim 15 wherein at least the machining or processing device is designed to be independently movable.

29. The machining or processing apparatus as recited in claim 28 wherein the machining or processing device is flexible and/or articulated.

30. The machining or processing apparatus as recited in claim 15 further comprising an analyzer for analyzing the sealing element.

31. The machining or processing apparatus as recited in claim 15 wherein the machining or processing device is configured at a distal or proximal end region of the machining or processing apparatus relative to the insertion direction of the machining or processing apparatus.

32. A method for machining or processing a sealing element located within a housing of a gas turbine, comprising the following steps:

at least partially introducing a machining or processing apparatus through a port of the housing into an interior space of the gas turbine; and

machining or processing the sealing element by a machining or processing device of the machining or processing apparatus under relative movement of the machining or processing device and the sealing element,

all of the method steps being implemented at least in the partially assembled state of the gas turbine.

33. The method as recited in claim 32 wherein at least the machining or processing device is partially and/or completely introduced through the port of the housing into the interior space of the gas turbine, making it possible for the sealing element of the gas turbine that is fixed to the rotor to be processed by the machining or processing device under relative movement of the rotor and the housing.

34. The method as recited in claim 32 wherein the machining or processing apparatus is initially completely introduced into the interior space of the gas turbine and is releasably secured to the rotor of the gas turbine by a holding device, making it possible for the sealing element of the gas turbine that is fixed to the housing to be machined and processed by the machining or processing device under relative movement of the rotor and the housing.

35. The method as recited in claim 32 wherein material is applied to the sealing element during machining or processing of the sealing element, and/or applied material is distributed over the sealing element, and/or material applied to the sealing element is cured, and/or material is removed from the sealing element.

36. The method as recited in claim 32 wherein the sealing element and the machining or processing device are moved relative to one another manually and/or by a motor, such as a horoscope motor, and/or at a speed of between 1 rpm and 10 rpm.