US20020090298A1 - Component of a flow machine, with inspection aperture - Google Patents
Component of a flow machine, with inspection aperture Download PDFInfo
- Publication number
- US20020090298A1 US20020090298A1 US10/002,141 US214101A US2002090298A1 US 20020090298 A1 US20020090298 A1 US 20020090298A1 US 214101 A US214101 A US 214101A US 2002090298 A1 US2002090298 A1 US 2002090298A1
- Authority
- US
- United States
- Prior art keywords
- inspection
- aperture
- component
- dust discharge
- dust
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 238000007689 inspection Methods 0.000 title claims abstract description 48
- 239000000428 dust Substances 0.000 claims abstract description 40
- 238000001816 cooling Methods 0.000 claims abstract description 27
- 239000002826 coolant Substances 0.000 claims abstract description 16
- 239000002245 particle Substances 0.000 claims abstract description 10
- 238000004140 cleaning Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 4
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/002—Cleaning of turbomachines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
- F01D21/10—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for responsive to unwanted deposits on blades, in working-fluid conduits or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/32—Collecting of condensation water; Drainage ; Removing solid particles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/14—Form or construction
- F01D5/18—Hollow blades, i.e. blades with cooling or heating channels or cavities; Heating, heat-insulating or cooling means on blades
- F01D5/187—Convection cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/20—Heat transfer, e.g. cooling
- F05D2260/201—Heat transfer, e.g. cooling by impingement of a fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/60—Fluid transfer
- F05D2260/607—Preventing clogging or obstruction of flow paths by dirt, dust, or foreign particles
Definitions
- the present invention relates to a component of a flow machine, particularly of a gas turbine, which has cooling channels for a cooling medium and also at least one inspection aperture through which an inspection of the interior of the component is made possible, and also a process for the inspection and/or cleaning of the interior of such a component.
- the turbine blades have for this purpose one or more chambers and/or channels constructed as cavities, via which a cooling medium can be supplied to the blades from the rotor side.
- a cooling medium can be supplied to the blades from the rotor side.
- numerous cooling air bores are provided at the leading region of the turbine blades at their forward edge, and the cooling medium can emerge through them from the interior of the blade.
- a cooling air film forms on the surface in this region and protects the turbine blade from excessive heating.
- corresponding cooling air bores are also present at the rear edge of the turbine blade.
- the present invention has as its object to develop a hollow component of a flow machine in such a manner that both the inspection and also a reduction of the danger of a blockage of the cooling air bores can be implemented in a simple manner.
- Patent claim 6 furthermore gives a process for the inspection and/or cleaning of the interior of a component configured according to patent claim 1.
- the component with cooling channels for a cooling medium and also at least one inspection aperture through which inspection of the interior of the component is made possible is characterized in that the inspection aperture is arranged on the component, and is dimensioned, in such a manner that it simultaneously forms a dust discharge aperture for dust or dirt particles contained in the cooling medium.
- a dust discharge aperture there is to be understood here an aperture in the wall of the component by means of which particles entrained in the cooling medium emerge from the interior of the component due to their inertia.
- a dust discharge aperture must therefore inevitably be arranged at a deflection of the channel conducting the cooling medium or at the end of a dust channel branching from this channel at a corresponding deflection.
- Such dust discharge apertures are already used in components of flow machines in order to prevent a blockage of the cooling channel bores.
- An example of an embodiment of a turbine blade with such a dust discharge aperture can be gathered from U.S. Pat. No. 4,820,122, for example.
- the interior of the turbine blade here has cooling air channels which run in a serpentine manner.
- the branching into the individual serpentine channels takes place already in the region of the entry of the cooling air into the turbine blade at the rotor.
- a straight channel extends radially as a direct extension of the inlet channel and leads directly to a dust discharge aperture at the blade tip. Particles entering with the cooling air are conveyed, due to the cooling force [sic], directly in a straight line radially to this dust discharge aperture, while nearly dirt-free air can enter the other serpentine channels without problems.
- the dust particles are thus conducted out of the cooling channels into the open air [sic] through this dust discharge aperture or this dust hole, so that the cooling air bores proper cannot be blocked by the dust particles.
- inspection access apertures by skillful arrangement, can fulfill the function of dust discharge apertures, or that dust discharge apertures, by suitable dimensioning, particularly enlargement, can serve as inspection access apertures.
- the dust discharge apertures are here designed in size and position both so that dust is favorably discharged and also an aperture with sufficient diameter is formed in order to be able to introduce a borescope through this aperture.
- the inspection aperture or inspection bore which at the same time represents a dust discharge aperture, is preferably already considered when the component is cast and not, as is the case with the cooling air apertures, introduced by subsequent drilling.
- this inspection and dust discharge aperture is preferably located in the neighborhood of the blade tip.
- these inspection and dust discharge apertures are to be arranged approximately parallel to the machine axis, if the inspection tool is to be introduced in the hot gas path of the gas turbine. If the inspection tool is to be introduced radially into the machine, a position at the blade tip is more favorable in which the inspection and dust discharge aperture runs radially of the machine axis.
- FIG. 1 is a diagram schematically showing a section through a turbine blade which is embodied according to the present invention.
- FIG. 2 is a further example, in cross section, of the embodiment of a turbine blade which is embodied according to the present invention.
- FIG. 1 schematically shows in cross section a turbine blade with a blade foot 1 , platform 2 , and also blade 3 . Cooling air is supplied to the turbine blade from the blade foot 1 by means of the cavity 4 visible in the cross section.
- a dust discharge aperture 5 is shown at the blade tip in the forward region, i.e., in the leading region of the turbine blade, and dirt particles entrained with the cooling medium are discharged, due to their inertia, from the hollow channel 4 through the said dust discharge aperture 5 .
- the dust discharge aperture 5 is, according to the invention, constituted with a large enough diameter for the introduction of a borescope to be possible through this aperture 5 into the interior of the turbine blade. In this manner, the interior of this component can be inspected at any time, even in the built-in state.
- FIG. 2 shows a further example, in which the dust discharge aperture 5 however runs, not radially, but in the axial direction.
- the blade foot 1 , platform 2 , and turbine blade 3 can again be seen in cross section.
- the cooling channel 4 runs in the same way as in FIG. 1.
- the dust hole 5 which in this example runs parallel to the machine axis, makes inspection possible with an inspection tool introduced in the hot gas path.
- the mechanism of dust extraction is the same as that in FIG. 1.
- the dirt particles due to their inertia and the high flow speed of the deflected cooling medium, take the path via the channel 7 leading to the dust hole 5 , while the cooling medium is deflected at the branch without problems in the direction toward the machine axis and is therefore conducted, relatively dust-free, past the pins 6 to the cooling air apertures at the rear edge of the blade.
- the dust hole 5 or the channel 7 leading to this are hence again constituted with a large enough diameter for the introduction of an inspection tool, particularly a borescope, to be possible into the interior of the turbine blade.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The present invention relates to a component of a flow machine, in particular a gas turbine, which has cooling channels (4) for a cooling medium and also at least one inspection aperture (5) through which an inspection of the interior of the component is made possible. The component is distinguished in that the inspection aperture (5) is arranged and dimensioned such that it simultaneously fulfills the function of a dust discharge aperture for dust or dirt particles contained in the cooling medium.
By the combination of a dust discharge aperture with an inspection aperture, a simple inspection function is offered, without having to provide in the component additional apertures affecting efficiency.
Description
- The present invention relates to a component of a flow machine, particularly of a gas turbine, which has cooling channels for a cooling medium and also at least one inspection aperture through which an inspection of the interior of the component is made possible, and also a process for the inspection and/or cleaning of the interior of such a component.
- For the attainment of a high efficiency factor, modern high temperature gas turbines require a carefully devised cooling system, particularly for the cooling of the highly loaded turbine blades. The turbine blades have for this purpose one or more chambers and/or channels constructed as cavities, via which a cooling medium can be supplied to the blades from the rotor side. As a rule, numerous cooling air bores are provided at the leading region of the turbine blades at their forward edge, and the cooling medium can emerge through them from the interior of the blade. A cooling air film forms on the surface in this region and protects the turbine blade from excessive heating. In the same way, corresponding cooling air bores are also present at the rear edge of the turbine blade.
- A problem with such hollow components, such as turbine blades or combustion chamber elements, which are frequently cast in one piece, is represented by the poor accessibility of the interior of these components. Their inspection, for example for internal damage such as cracks, or for dirt deposits, is therefore as a rule difficult.
- To avoid this problem, it is known, for example from DE 198 01 804 A1, to install, in addition to the cooling air bores which are necessary in each case, one or more inspection access apertures in the outer wall of the turbine blade, through which bores the blade interior can be investigated with a corresponding inspection tool. Such an inspection aperture or inspection access aperture also makes possible the inspection of an already built-in turbine blade, and also the cleaning from the interior of the turbine blade of dirt deposits which could lead to blockage of the very narrow cooling air bores. The said document provides for the introduction of a special cleaning tool through the inspection access aperture for this purpose.
- The present invention has as its object to develop a hollow component of a flow machine in such a manner that both the inspection and also a reduction of the danger of a blockage of the cooling air bores can be implemented in a simple manner.
- The object is attained with the component according to
patent claim 1. Advantageous embodiments of the component are the subject of the dependent claims.Patent claim 6 furthermore gives a process for the inspection and/or cleaning of the interior of a component configured according topatent claim 1. - The component with cooling channels for a cooling medium and also at least one inspection aperture through which inspection of the interior of the component is made possible is characterized in that the inspection aperture is arranged on the component, and is dimensioned, in such a manner that it simultaneously forms a dust discharge aperture for dust or dirt particles contained in the cooling medium.
- By a “dust discharge aperture” there is to be understood here an aperture in the wall of the component by means of which particles entrained in the cooling medium emerge from the interior of the component due to their inertia. A dust discharge aperture must therefore inevitably be arranged at a deflection of the channel conducting the cooling medium or at the end of a dust channel branching from this channel at a corresponding deflection. Such dust discharge apertures are already used in components of flow machines in order to prevent a blockage of the cooling channel bores. An example of an embodiment of a turbine blade with such a dust discharge aperture can be gathered from U.S. Pat. No. 4,820,122, for example. The interior of the turbine blade here has cooling air channels which run in a serpentine manner. The branching into the individual serpentine channels takes place already in the region of the entry of the cooling air into the turbine blade at the rotor. A straight channel extends radially as a direct extension of the inlet channel and leads directly to a dust discharge aperture at the blade tip. Particles entering with the cooling air are conveyed, due to the cooling force [sic], directly in a straight line radially to this dust discharge aperture, while nearly dirt-free air can enter the other serpentine channels without problems. The dust particles are thus conducted out of the cooling channels into the open air [sic] through this dust discharge aperture or this dust hole, so that the cooling air bores proper cannot be blocked by the dust particles.
- The inventor of the present invention has now discovered that inspection access apertures, by skillful arrangement, can fulfill the function of dust discharge apertures, or that dust discharge apertures, by suitable dimensioning, particularly enlargement, can serve as inspection access apertures. The dust discharge apertures are here designed in size and position both so that dust is favorably discharged and also an aperture with sufficient diameter is formed in order to be able to introduce a borescope through this aperture.
- The inspection aperture or inspection bore, which at the same time represents a dust discharge aperture, is preferably already considered when the component is cast and not, as is the case with the cooling air apertures, introduced by subsequent drilling. In rotating blades, this inspection and dust discharge aperture is preferably located in the neighborhood of the blade tip. In order to be able to inspect these blades even in the built-in state of the machine, these inspection and dust discharge apertures are to be arranged approximately parallel to the machine axis, if the inspection tool is to be introduced in the hot gas path of the gas turbine. If the inspection tool is to be introduced radially into the machine, a position at the blade tip is more favorable in which the inspection and dust discharge aperture runs radially of the machine axis. By the combination according to the invention of the dust discharge and the inspection function in one and the same aperture, unnecessary apertures are avoided which can lead to an undesired loss of cooling medium and thus bring about a loss of efficiency.
- The invention is briefly described hereinafter using embodiment examples in connection with the accompanying drawing, without limitation of the general concept of the invention in any way.
- FIG. 1 is a diagram schematically showing a section through a turbine blade which is embodied according to the present invention; and
- FIG. 2 is a further example, in cross section, of the embodiment of a turbine blade which is embodied according to the present invention.
- FIG. 1 schematically shows in cross section a turbine blade with a
blade foot 1,platform 2, and alsoblade 3. Cooling air is supplied to the turbine blade from theblade foot 1 by means of thecavity 4 visible in the cross section. A dust discharge aperture 5 is shown at the blade tip in the forward region, i.e., in the leading region of the turbine blade, and dirt particles entrained with the cooling medium are discharged, due to their inertia, from thehollow channel 4 through the said dust discharge aperture 5. Due to the high flow speed of the cooling medium at the deflection of thecooling channel 4 present at the dust discharge aperture 5, the particles, due to their large mass, take the path through the dust discharge aperture 5 and do not pass via the deflection into the further course of the cooling channel, in which relatively dust-free air thus flows. This cooling air flows past thepins 6 and leaves the blade by means of apertures at the rear edge, for example, by means of a slit. The dust discharge aperture 5 is, according to the invention, constituted with a large enough diameter for the introduction of a borescope to be possible through this aperture 5 into the interior of the turbine blade. In this manner, the interior of this component can be inspected at any time, even in the built-in state. - Finally, FIG. 2 shows a further example, in which the dust discharge aperture5 however runs, not radially, but in the axial direction. In this example also, the
blade foot 1,platform 2, andturbine blade 3 can again be seen in cross section. Thecooling channel 4 runs in the same way as in FIG. 1. The dust hole 5, which in this example runs parallel to the machine axis, makes inspection possible with an inspection tool introduced in the hot gas path. The mechanism of dust extraction is the same as that in FIG. 1. In this example, the dirt particles, due to their inertia and the high flow speed of the deflected cooling medium, take the path via the channel 7 leading to the dust hole 5, while the cooling medium is deflected at the branch without problems in the direction toward the machine axis and is therefore conducted, relatively dust-free, past thepins 6 to the cooling air apertures at the rear edge of the blade. The dust hole 5 or the channel 7 leading to this are hence again constituted with a large enough diameter for the introduction of an inspection tool, particularly a borescope, to be possible into the interior of the turbine blade. -
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Claims (7)
1. Component of a flow machine, in particular a gas turbine, which has cooling channels (4) for a cooling medium and also at least one inspection aperture (5) through which an inspection of the interior of the component is made possible, wherein
the inspection aperture (5) is arranged and dimensioned such that it forms a dust discharge aperture for dust or dirt particles contained in the cooling medium.
2. Component according to claim 1 , wherein the inspection aperture (5) is dimensioned such that it makes possible the introduction of a borescope.
3. Component according to claim 1 or 2, wherein it is constituted as a rotating blade for a turbine, the inspection aperture (5) being arranged in the neighborhood of the blade tip.
4. Component according to claim 3 , wherein the inspection aperture (5) runs approximately parallel to the machine axis.
5. Component according to claim 3 , wherein the inspection aperture (5) is arranged at the blade tip and runs in a radial direction.
6. Process for the inspection and/or cleaning of the interior of a component, embodied according to patent claim 1 , of a flow machine, in particular a gas turbine, wherein
an inspection and/or cleaning tool is introduced through the inspection or dust discharge aperture, and an inspection and/or cleaning of the interior of the component is carried out with the inspection and/or cleaning tool.
7. Process according to claim 6 , wherein a borescope is used as the inspection tool.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10064269A DE10064269A1 (en) | 2000-12-22 | 2000-12-22 | Component of a turbomachine with an inspection opening |
DE10064269.1 | 2000-12-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20020090298A1 true US20020090298A1 (en) | 2002-07-11 |
Family
ID=7668442
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/002,141 Abandoned US20020090298A1 (en) | 2000-12-22 | 2001-12-05 | Component of a flow machine, with inspection aperture |
Country Status (3)
Country | Link |
---|---|
US (1) | US20020090298A1 (en) |
EP (1) | EP1219779B1 (en) |
DE (2) | DE10064269A1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1503038A1 (en) * | 2003-08-01 | 2005-02-02 | Snecma Moteurs | Cooling circuit for a turbine blade |
US20050139235A1 (en) * | 2003-11-14 | 2005-06-30 | Succop John S. | Methods of preparing, cleaning and repairing article and article repaired |
EP1704933A1 (en) * | 2005-03-21 | 2006-09-27 | United Technologies Corporation | Methods of preparing, cleaning and repairing article and article repaired |
US20060275118A1 (en) * | 2005-06-06 | 2006-12-07 | General Electric Company | Turbine airfoil with integrated impingement and serpentine cooling circuit |
US20100212703A1 (en) * | 2009-02-20 | 2010-08-26 | De La Bruere-Terreault Julien | Compressor wash nozzle integrated in an inlet case strut |
US20140063228A1 (en) * | 2012-09-06 | 2014-03-06 | General Electric Company | Method and system for cleaning surfaces and non-destructive inspection thereof |
US9341069B2 (en) | 2009-03-23 | 2016-05-17 | General Electric Technologyy Gmbh | Gas turbine |
EP3184743A1 (en) * | 2015-12-22 | 2017-06-28 | General Electric Company | Turbine airfoil with trailing edge cooling circuit |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003080998A1 (en) * | 2002-03-25 | 2003-10-02 | Alstom Technology Ltd | Cooled turbine blade |
DE10305898A1 (en) | 2003-02-13 | 2004-08-26 | Alstom Technology Ltd | Process for installing spiral thread inserts and installation tool for carrying out the process |
DE102009039224B4 (en) | 2009-08-28 | 2022-10-06 | MTU Aero Engines AG | Method and device for detecting clogged holes in a component |
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US3533711A (en) * | 1966-02-26 | 1970-10-13 | Gen Electric | Cooled vane structure for high temperature turbines |
US3628885A (en) * | 1969-10-01 | 1971-12-21 | Gen Electric | Fluid-cooled airfoil |
US3936217A (en) * | 1975-01-31 | 1976-02-03 | Westinghouse Electric Corporation | Inspection port for turbines |
US4278400A (en) * | 1978-09-05 | 1981-07-14 | United Technologies Corporation | Coolable rotor blade |
US4529357A (en) * | 1979-06-30 | 1985-07-16 | Rolls-Royce Ltd | Turbine blades |
US4668162A (en) * | 1985-09-16 | 1987-05-26 | Solar Turbines Incorporated | Changeable cooling control system for a turbine shroud and rotor |
US4767268A (en) * | 1987-08-06 | 1988-08-30 | United Technologies Corporation | Triple pass cooled airfoil |
US4775296A (en) * | 1981-12-28 | 1988-10-04 | United Technologies Corporation | Coolable airfoil for a rotary machine |
US4992026A (en) * | 1986-03-31 | 1991-02-12 | Kabushiki Kaisha Toshiba | Gas turbine blade |
US5052889A (en) * | 1990-05-17 | 1991-10-01 | Pratt & Whintey Canada | Offset ribs for heat transfer surface |
US5152662A (en) * | 1990-05-17 | 1992-10-06 | Rolls-Royce Plc | Inspection aperture sealing |
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US6206638B1 (en) * | 1999-02-12 | 2001-03-27 | General Electric Company | Low cost airfoil cooling circuit with sidewall impingement cooling chambers |
US6347923B1 (en) * | 1999-05-10 | 2002-02-19 | Alstom (Switzerland) Ltd | Coolable blade for a gas turbine |
US6431832B1 (en) * | 2000-10-12 | 2002-08-13 | Solar Turbines Incorporated | Gas turbine engine airfoils with improved cooling |
US6468033B1 (en) * | 2000-10-03 | 2002-10-22 | General Electric Company | Methods and apparatus for maintaining alignment of borescope plungers |
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US4820122A (en) * | 1988-04-25 | 1989-04-11 | United Technologies Corporation | Dirt removal means for air cooled blades |
US4820123A (en) * | 1988-04-25 | 1989-04-11 | United Technologies Corporation | Dirt removal means for air cooled blades |
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DE19801804C2 (en) * | 1998-01-19 | 1999-10-28 | Siemens Ag | Turbine blade and method for inspecting and / or cleaning a turbine blade |
-
2000
- 2000-12-22 DE DE10064269A patent/DE10064269A1/en not_active Withdrawn
-
2001
- 2001-12-04 EP EP01128803A patent/EP1219779B1/en not_active Revoked
- 2001-12-04 DE DE50111356T patent/DE50111356D1/en not_active Expired - Lifetime
- 2001-12-05 US US10/002,141 patent/US20020090298A1/en not_active Abandoned
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3533711A (en) * | 1966-02-26 | 1970-10-13 | Gen Electric | Cooled vane structure for high temperature turbines |
US3628885A (en) * | 1969-10-01 | 1971-12-21 | Gen Electric | Fluid-cooled airfoil |
US3936217A (en) * | 1975-01-31 | 1976-02-03 | Westinghouse Electric Corporation | Inspection port for turbines |
US4278400A (en) * | 1978-09-05 | 1981-07-14 | United Technologies Corporation | Coolable rotor blade |
US4529357A (en) * | 1979-06-30 | 1985-07-16 | Rolls-Royce Ltd | Turbine blades |
US4775296A (en) * | 1981-12-28 | 1988-10-04 | United Technologies Corporation | Coolable airfoil for a rotary machine |
US4668162A (en) * | 1985-09-16 | 1987-05-26 | Solar Turbines Incorporated | Changeable cooling control system for a turbine shroud and rotor |
US4992026A (en) * | 1986-03-31 | 1991-02-12 | Kabushiki Kaisha Toshiba | Gas turbine blade |
US4767268A (en) * | 1987-08-06 | 1988-08-30 | United Technologies Corporation | Triple pass cooled airfoil |
US5152662A (en) * | 1990-05-17 | 1992-10-06 | Rolls-Royce Plc | Inspection aperture sealing |
US5052889A (en) * | 1990-05-17 | 1991-10-01 | Pratt & Whintey Canada | Offset ribs for heat transfer surface |
US5603606A (en) * | 1994-11-14 | 1997-02-18 | Solar Turbines Incorporated | Turbine cooling system |
US5797726A (en) * | 1997-01-03 | 1998-08-25 | General Electric Company | Turbulator configuration for cooling passages or rotor blade in a gas turbine engine |
US5931638A (en) * | 1997-08-07 | 1999-08-03 | United Technologies Corporation | Turbomachinery airfoil with optimized heat transfer |
US5902093A (en) * | 1997-08-22 | 1999-05-11 | General Electric Company | Crack arresting rotor blade |
US5975851A (en) * | 1997-12-17 | 1999-11-02 | United Technologies Corporation | Turbine blade with trailing edge root section cooling |
US6206638B1 (en) * | 1999-02-12 | 2001-03-27 | General Electric Company | Low cost airfoil cooling circuit with sidewall impingement cooling chambers |
US6347923B1 (en) * | 1999-05-10 | 2002-02-19 | Alstom (Switzerland) Ltd | Coolable blade for a gas turbine |
US6468033B1 (en) * | 2000-10-03 | 2002-10-22 | General Electric Company | Methods and apparatus for maintaining alignment of borescope plungers |
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US20050139235A1 (en) * | 2003-11-14 | 2005-06-30 | Succop John S. | Methods of preparing, cleaning and repairing article and article repaired |
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US20060275118A1 (en) * | 2005-06-06 | 2006-12-07 | General Electric Company | Turbine airfoil with integrated impingement and serpentine cooling circuit |
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US20100212703A1 (en) * | 2009-02-20 | 2010-08-26 | De La Bruere-Terreault Julien | Compressor wash nozzle integrated in an inlet case strut |
US8245952B2 (en) | 2009-02-20 | 2012-08-21 | Pratt & Whitney Canada Corp. | Compressor wash nozzle integrated in an inlet case strut |
US8337630B2 (en) | 2009-02-20 | 2012-12-25 | Pratt & Whitney Canada Corp. | Method for cleaning the compressor of a gas turbine engine |
US9341069B2 (en) | 2009-03-23 | 2016-05-17 | General Electric Technologyy Gmbh | Gas turbine |
US20140063228A1 (en) * | 2012-09-06 | 2014-03-06 | General Electric Company | Method and system for cleaning surfaces and non-destructive inspection thereof |
EP3184743A1 (en) * | 2015-12-22 | 2017-06-28 | General Electric Company | Turbine airfoil with trailing edge cooling circuit |
CN106907183A (en) * | 2015-12-22 | 2017-06-30 | 通用电气公司 | Turbine airfoil with trailing edge cooling circuit |
US9938836B2 (en) | 2015-12-22 | 2018-04-10 | General Electric Company | Turbine airfoil with trailing edge cooling circuit |
Also Published As
Publication number | Publication date |
---|---|
EP1219779B1 (en) | 2006-11-02 |
EP1219779A2 (en) | 2002-07-03 |
DE50111356D1 (en) | 2006-12-14 |
DE10064269A1 (en) | 2002-07-04 |
EP1219779A3 (en) | 2003-12-10 |
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