CN1971002A - Seal member, assembly and method - Google Patents
Seal member, assembly and method Download PDFInfo
- Publication number
- CN1971002A CN1971002A CNA200610172851XA CN200610172851A CN1971002A CN 1971002 A CN1971002 A CN 1971002A CN A200610172851X A CNA200610172851X A CN A200610172851XA CN 200610172851 A CN200610172851 A CN 200610172851A CN 1971002 A CN1971002 A CN 1971002A
- Authority
- CN
- China
- Prior art keywords
- seal
- support
- brush
- hair
- peripheral surface
- 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.)
- Pending
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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
- F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
- F01D11/001—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between stator blade and rotor
-
- 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
- F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
- F01D11/02—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3284—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings characterised by their structure; Selection of materials
- F16J15/3288—Filamentary structures, e.g. brush seals
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/44—Free-space packings
- F16J15/441—Free-space packings with floating ring
- F16J15/442—Free-space packings with floating ring segmented
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- 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
- F05D2240/00—Components
- F05D2240/55—Seals
- F05D2240/56—Brush seals
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Sealing Devices (AREA)
Abstract
A brush seal assembly and method for a turbine machine having a rotary member and a stationary member circumscribing the rotary member. The seal assembly is comprised of a sealing member disposed at a radially inward region of the stationary member and a portion of the sealing member is in rubbing contact with the contact region. The sealing member is detachable from the stationary member for selective replacement and incorporates at least one integrally formed seal element.
Description
Technical field
The present invention relates generally to the class dynamic seal (packing) of use on turbo machine.
Background technique
Maze type filler and brush-hair seal are used on the gas turbine of steam turbine and aircraft and industry widely, provide dynamic seal (packing) between rotation such such as the rotor of steam turbine and tabula inwall and static turbine part.Traditional labyrinth packing comprises radially inwardly protruding and approach but do not contact (firmly) tooth of rotary component of a series of circumference from static part, defines a series of local disturbance thus to produce tortuous axial fluid passage on the surface of the rotary component of direct neighbor.
The brush-hair seal standard comprise the metal mane, be similar to the tooth of labyrinth packing, from the circumference of static part radially inwardly towards the rotary component projection.Compare with labyrinth packing, brush-hair seal usually with rotary component on adjacent circumferential surface carry out rubbing contact, to around the fluid generation of rotary component circumference obstacle substantially continuously.In this, brush-hair seal provides more effective barrier for second fluid loss, just, compares with labyrinth packing, better sealability is provided, and has had potential important improvement performance thus.
The rotor of gas turbine of aircraft and industry is relative to be wanted firmly, and their dynamic effect is not influenced by the rubbing contact of brush-hair seal usually thus.On the contrary, the rotor of steam turbine typically comprises a hard continuously axle that is equipped with a plurality of blades.The impulse type steam turbine typically is operated in more than the first crooked threshold frequency of rotor, and usually near the second crooked threshold frequency.Can see that the rubbing contact between brush-hair seal and steam turbine rotor will cause unacceptable radial rotor to move by first and second threshold frequencies amplification rotor oscillation of rotor.Can believe if rotor because heat, dynamically or manufacturing environment and when crooked this influence especially might take place.More possible is, because the frictional force part that rubbing contact causes has increased the surface temperature of rotor, causes producing the uneven surfaces temperature on its circumference.Because crooked epitrochanterian height (protrusion) point is in this manner because stronger rubbing contact especially is easy to heating, the local heating that is caused by brush-hair seal will further increase the bending of rotor owing to expanding at the uneven heat of peritrochanteric, thus aggravation vibration and rotor dynamic effects.
In the U.S. Patent No. 6821086 of assigning, this disclosure of invention at this as a reference, the present invention discloses a kind of seal arrangement and method can lower the vibration and the rotor dynamics influence that cause local heating to produce by sealing and rotary component rubbing contact in the turbo machine that occurs in such as on the turbo machine of steam turbine greatly.
The structure of patent ' 086 is when needing a plurality of hard teeth and being that a hard tooth support of big wedge shape is an acceptable when having enough spaces.Yet as for the less hard tooth of needs and have only the example in very little space, the big hard tooth support and the structure of brush-hair seal support can not be worked in the patent of ' 086.Need a littler design thus.As shown in Figure 2, in fact some hard teeth are processed on nozzle structure.Yet if this sealing configuration is owing to friction is worn and torn, hard tooth sealing configuration can not be replaced.
Summary of the invention
As above narrate, existing brush-hair seal support has occupied a large amount of spaces, forces the mounting point that needs wide variety of materials to support sealed support in position and limited sealing.Similarly, as described above, the actual processing of some hard teeth is on nozzle structure, if therefore this sealing wear, hard tooth sealing configuration can not be replaced.
The objective of the invention is to reduce and form the required lot of materials of seal arrangement and allow all water-tight equipments to be replaced if desired and do not need on jet pipe, to carry out any processing or modification.
In inventive embodiment, provide foot that a kind of brush-hair seal support reduces the brush-hair seal device with and support, also integrally formed simultaneously a hard tooth sealing as second/additional/backup sealing in the support.The sealing of hard tooth is integrally formed in to be provided easy more and has replaced and little foot allows brush-hair seal to be installed in the less zone on the support.The hard toothing of unitary moulding allows only minimum supporting structure to be provided and also to allow hard tooth can be replaced when it is worn for hard tooth.
Therefore, the sealed member of the turbo machine of example of the present invention comprises: the brush-hair seal support; Be installed in the brush-hair seal assembly on the described sealed support, the part of described Brush type assembly is from described brush-hair seal bracket tab, be integrally formed at hard tooth seal element on the described brush-hair seal support with at least one, hard tooth seal element along with extend from the parallel direction of at least one section of the described part of the described Brush type assembly of described brush-hair seal bracket tab.
The present invention also comprises and is used to have around the whirligig of rotational and the seal arrangement on the turbo machine of the stationary apparatus of whirligig, whirligig define peripheral surface and stationary apparatus have radially towards whirligig thus with the part of its peripheral surface opposition, seal arrangement comprise whirligig described peripheral surface at least one part and at the described a plurality of seal elements that radially on the sealed support on the part, provide of stationary apparatus, described a plurality of seal element comprises at least one and is installed on the described sealed support and is configured to and the seal element of described peripheral surface rubbing contact and at least one hard tooth seal element with described peripheral surface interval, and wherein said hard tooth seal element is defined as with described sealed support and forms one.
The present invention has further comprised a kind of for turbo machine provides the method for sealing, and around the rotary component of a rotational with around between the static part of rotary component, rotary component has an external peripheral surface; Comprise: provide a kind of and included at static part radially to the seal arrangement of first and second black boies of inner region, first black box has a part with the external peripheral surface rubbing contact of rotor, the support of second black box and described first black box form one and along extending with the direction of the first black box almost parallel with described external peripheral surface at interval.
Description of drawings
These and other objects and advantages of the present invention, will be by the careful study of the more detailed description of the preferred embodiment of the present invention carried out below in conjunction with accompanying drawing being understood fully and being explained, wherein:
Fig. 1 has described to be equipped with the local longitdinal cross-section diagram in tabula filler zone of steam turbine of the seal arrangement of prior art;
Fig. 2 is a schematic representation of having described another seal arrangement of prior art;
Fig. 3 is the schematic representation of having described according to the seal arrangement of the embodiment of the invention.
Embodiment
Referring to Fig. 1, shown a tabula filler zone of the steam turbine of the seal arrangement that is equipped with basis ' 086 patent.Steam turbine has the rotor 10 that is formed with or the axially spaced-apart runner 12 that has blade 14 is installed.Rotor 10, runner 12 and blade 14 rotate the rotation of sub-axis and, form the rotating part port of turbine thus.Ring (wall) 16 extends radially inwardly between runner 12 in one tabula (nozzle), limits the distance piece of turbine.Housing 18 is round rotor 10 and have in the nozzle that supports jet pipe dividing plate 20 and encircle 16.Ring 16, dividing plate 20 and housing 18 have formed the stationary part of turbine together, are arranged in the outer circumferential area of plane vertical with rotor axis and surrounding rotor 10.Vapor stream is crossed blade 14 and jet pipe dividing plate 20.
Turbine cartridge shown in Figure 1 is furnished with labyrinth filler 22,24 and 26.Labyrinth filler 22 and 24 is installed on packing ring section or the hard tooth support 28 and labyrinth filler 26 is installed on the packing ring section 30.As traditional, each packing ring section 28,30 is for being assemblied in one of many arcuate segment on ring 16 in the jet pipe or the housing 18 respectively along circumference.Labyrinth filler 22,24 and 26 has reduced between rotation and static part, more specifically, and ring 16 and second fluid loss between blade 14 and housing 18 in rotor 10 and nozzle.When implementing, be understandable that labyrinth filler 22,24 and 26 is because the gap between the contrast surface of the hard tooth 32,33 of labyrinth filler and their sealings and can not reduce second fluid loss that may be positioned at the brush-hair seal zone separately.Therefore, according to ' 086 patent, be installed in the packing ring section or the hard tooth support 28 that encircle in the nozzle on 16 and further comprise the axially brush-hair seal 34 between the whole tooth of labyrinth filler 22 and 24.Labyrinth filler 22 and 24 seals as the backup of brush-hair seal 34 thus.Compare with 24 with filler 22, brush-hair seal 34 is suitable for its surface of being sealed of Continuous Contact, thus than having only labyrinth filler 22 and 24 to realize better sealing.As traditional, brush-hair seal 34 be equipped with manes 36 and, as mentioned above, labyrinth filler 22 and 24 is equipped with radially the hard tooth 32 to rotor 10 projectioies.
Understandable, appear at the friction sealed intrinsic frictional heating that caused between brush-hair seal 34 and the rotor 10.In the patent of ' 086, better distribute with heat dispersing can be by comprising one in epitrochanterian courtyard part 38, the courtyard part is protruded to limit a platform 42 along axial adjacent surface zone 40 radially outwards.Courtyard part 38 defines a cavity 44 that is held encirclement fully by it, for instance, and in only air is formed on.
Fig. 3 described identical as shown in Figure 1 turbine but wherein seal arrangement make amendment according to the embodiment of the invention, reduced the foot of brush-hair seal support 146 and the also whole backups sealing that forms a hard tooth sealing 122 as brush-hair seal like this.More specifically referring to the schematic representation of the embodiment of the invention shown in Figure 3, brush-hair seal device 146 comprises a submissive mane 136 that radially extends and provide for the surface of running shaft (not shown) tight seal to rotor.Although be not presented among Fig. 3 in detail, in an embodiment, rotor structure corresponding to brush-hair seal comprises the platform structure 42 of a type shown in Figure 1 and other disclosure of design, is used for effectively distributing and disperseing by the heat that produces when axis rotates when rotary component between brush-hair seal and the rotary component.
In the illustrated embodiment, except a dovetail that is received in the wedge-shaped impression is provided, support 146 has a single engagement suspension hook or flange 148.Support 146 is received into as shown in the figure and is arranged in the groove 150 that tabula ring (nozzle wall) 116 shapes conform to, and suspension hook 148 is held by groove 152 like this.In the illustrated embodiment, in addition, brush-hair seal support 146 is a kind of stratiform structure that sandwiches the submissive mane 136 in preceding and rear plate or the holder part 154,156 that comprises.Fore poppet part 154 comprises apart section 158 with the equilibrium block of submissive mane 136 and preceding flat board at interval, with allow traditional approach axially to pre-buckling.Rear plate 156 on the other hand, comprises one and protrudes the afterbody deflection that supporting element 160 limits submissive mane 136.
In an embodiment of the present invention, at least one hard tooth seal element 131 is integrally formed on the brush-hair seal support 146 and radial parallel is extended, but lacks than the extension of mane 136, provides the backup sealing for mane 136 thus.In order to reduce the foot of brush-hair seal support 146, better provide one as the hard tooth element 32 of the isolation in Fig. 1 structure, an integrated hard tooth 131 is provided.Therefore, holder part (illustrated embodiment 154) is by the metal manufacturing and comprise a hard tooth 131 that is fabricated integrally on it.Brush type structure 136 stacked and be solded into support 154,156 rotating part of seal arrangement 146 be provided.Identical and the demonstration once more in Fig. 3 thus of part that the remainder of turbine structure is general and embodiment illustrated in fig. 1 can be convenient to use in this embodiment even be understandable that these identical parts like this.
Understandable, the integral body of hard tooth is formed with and is beneficial to the size that reduces sealed support and allows hard tooth can be replaced after wearing and tearing.So also allow to reduce the quantity of required device feature.As mentioned above, the structure of Fig. 1 comprises one and is installed in big brush-hair seal support 34 in the hard tooth support 28 for a plurality of hard teeth.Increased like this and installed required material and space.It is also specified because of the sealing effect of brush-hair seal and has used than required more hard tooth 32.Allow support 146 to be designed to have a minimum hard tooth 131 in the integrally formed structure of above mentioning and in Fig. 3, show.And, can recognize, brush-hair seal support 146 is designed to directly to be installed to the flat board on the spray nozzle board 116 for example and the submissive device of mane, has further fully reduced the axial dimension of seal arrangement 146 like this than sealed support for example shown in Figure 1 28.
Be understandable that when actual holder part 154,156 to be designed to as shown in the figure and to describe that holder part can have structure different with illustrated embodiment and special shape.For example, though as shown in the figure rear plate comprise with jet pipe wall/tabula in the suspension hook of groove 152 engagements in ring 116 upper grooves 150, preceding flat board can comprise the alternative or other suspension hook that corresponding passage meshes in the ring/jet pipe wall structure in this and the tabula.In addition, before as shown in the figure hard tooth 131 is integrally formed on dull and stereotyped 154, understandable other or improved before other dull and stereotyped 154 or rear plate 156 in one, perhaps two, can have integrally formed with it hard tooth.In addition, a single hard tooth is only arranged as shown in the figure, understandable corresponding dull and stereotyped axial thickness can be adjusted the tooth that holds variable number.Even like this, the embodiment of diagram and the sealing described can directly be installed in the tabula (nozzle) on the ring (wall), and in addition, new seal arrangement can be located immediately in the groove of the stator above the blade tip and produce sealing effect there.It can be used as the part of housing or the part of tabula outer shroud.
Therefore, the present invention of description can be considered present the most practical and preferred embodiment, is understandable that the embodiment that the present invention is not disclosed limits, and antithesis, in having covered multiple modification and identical layout being included in attached embodiment's spirit and scope.
The mark inventory:
Rotor 10
Runner 12
Blade 14
Ring (wall) 16 in the tabula (nozzle)
Housing 18
Jet pipe dividing plate 20
Labyrinth filler 22,24 and 26
Hard tooth support 28
Packing ring section 30
Hard tooth 32,33
Brush-hair seal 34
Mane 36
Courtyard part 38
Surface area 40
Platform 42
Cavity 44
Ring (nozzle wall) 116 in the tabula
Hard tooth sealing 122
Hard tooth seal element 131
Engagement suspension hook or flange 148
The groove 150 that shape conforms to
Before and rear plate or holder part 154,156
Projection supports 160
Claims (10)
1. the sealed member of a turbo machine comprises:
Brush-hair seal support (146);
Be installed in the brush-hair seal assembly (136) on the described brush-hair seal support, the part of described Brush type assembly from the described brush-hair seal support projection and
At least one is integrally formed at the hard tooth seal element (131) on the described brush-hair seal support, hard tooth seal element along with extend from the parallel direction of at least one section of the described part of the described Brush type assembly of described brush-hair seal bracket tab.
2. sealed member as claimed in claim 1, it is characterized in that described brush-hair seal support (146) comprises preceding dull and stereotyped (154) and a rear plate (156), described Brush type assembly (136) is arranged and is situated between, and dull and stereotyped before wherein said, rear plate and brush-hair seal assembly are by being welded into one.
3. sealed member as claimed in claim 2 is characterized in that described hard tooth seal element (131) and described preceding dull and stereotyped (154) form one.
4. sealed member as claimed in claim 2, it is characterized in that at least one in the dull and stereotyped and rear plate defines a suspension hook part (148) before described to mesh with respective grooves (152) of supporting structure, and sealed member is suitable for being installed on the supporting structure.
5. sealed member as claimed in claim 1, it is characterized in that described turbo machine has the whirligig that rotates around axis and centers on whirligig (10,12,14) stationary apparatus (16,18,20), whirligig define peripheral surface and stationary apparatus have radially towards whirligig thus with the part (18 of its peripheral surface opposition, 116), seal arrangement comprises at least one part (14 of the described peripheral surface of whirligig, 42), described a plurality of seal element (131,136) be provided at the described of stationary apparatus radially towards part (18,116) on the sealed support on (146), described a plurality of seal element comprises at least one and is installed on the described sealed support and is configured to and the seal element (136) of described peripheral surface rubbing contact and at least one and described peripheral surface hard tooth seal element (131) at interval, and wherein said hard tooth seal element is defined as with described brush-hair seal support (146) and forms one.
6. sealed member as claimed in claim 5 is characterized in that described peripheral surface and the described part described seal element rubbing contact of whirligig comprises a platform (42) that axially closes on the support of part (40) radially outward by rotor (10).
7. sealed member as claimed in claim 5 further comprises at least one air cavity (44) and is limited to described support platform (42) below.
8. sealed member as claimed in claim 5 is characterized in that described sealed support (146) and described stationary apparatus form and be detachably fixed to described stationary apparatus respectively.
9. one kind for turbo machine provides the method for sealing, and around the rotary component of axis rotation with around between the static part of rotary component, rotary component has an external peripheral surface; Comprise:
Provide a kind of include static part radially to first and second black boies (131 of inner region, 136) seal arrangement (146), first black box (136) has a part with the external peripheral surface rubbing contact of rotor, and second black box (131) is integrally formed on the thin slice of support (146) of described first black box (136) and along extending with the direction of the first black box almost parallel with described external peripheral surface at interval.
10. method as claimed in claim 9 is characterized in that support (146) is detachably fixed to described static part.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/282703 | 2005-11-21 | ||
| US11/282,703 US20070114727A1 (en) | 2005-11-21 | 2005-11-21 | Seal member, assembly and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1971002A true CN1971002A (en) | 2007-05-30 |
Family
ID=37989749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200610172851XA Pending CN1971002A (en) | 2005-11-21 | 2006-11-21 | Seal member, assembly and method |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20070114727A1 (en) |
| JP (1) | JP2007138948A (en) |
| CN (1) | CN1971002A (en) |
| DE (1) | DE102006054685A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244682A (en) * | 2013-04-24 | 2013-08-14 | 石伟伟 | Blade-type sealing device |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8167313B2 (en) * | 2005-11-21 | 2012-05-01 | General Electric Company | Seal member, assembly and method |
| US20100232939A1 (en) * | 2009-03-12 | 2010-09-16 | General Electric Company | Machine Seal Assembly |
| US9353635B2 (en) * | 2011-08-16 | 2016-05-31 | General Electric Company | Seal end attachment |
| FR2998922B1 (en) * | 2012-12-05 | 2018-06-15 | Safran Aircraft Engines | SEALING OF TURBOMACHINE SPEAKERS REALIZED BY BRUSH JOINT AND LABYRINTH |
| EP2959114A1 (en) * | 2013-02-20 | 2015-12-30 | Siemens Aktiengesellschaft | Riffled seal for a turbomachine, turbomachine and method of manufacturing a riffled seal for a turbomachine |
| US9587505B2 (en) | 2013-12-05 | 2017-03-07 | General Electric Company | L brush seal for turbomachinery application |
| US9322287B2 (en) | 2014-06-03 | 2016-04-26 | General Electric Company | Brush seal for turbine |
| CN104454030A (en) * | 2014-11-14 | 2015-03-25 | 中国航空动力机械研究所 | High-pressure-resisting low-hysteresis brush type sealing device |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5749584A (en) * | 1992-11-19 | 1998-05-12 | General Electric Company | Combined brush seal and labyrinth seal segment for rotary machines |
| US6131910A (en) * | 1992-11-19 | 2000-10-17 | General Electric Co. | Brush seals and combined labyrinth and brush seals for rotary machines |
| DE19640979A1 (en) * | 1996-10-04 | 1998-04-16 | Asea Brown Boveri | Brush seal |
| US5884918A (en) * | 1996-10-04 | 1999-03-23 | Eg&G Sealol, Inc. | Brush seal with a flexible front plate |
| US6045134A (en) * | 1998-02-04 | 2000-04-04 | General Electric Co. | Combined labyrinth and brush seals for rotary machines |
| US6036437A (en) * | 1998-04-03 | 2000-03-14 | General Electric Co. | Bucket cover geometry for brush seal applications |
| US6168377B1 (en) * | 1999-01-27 | 2001-01-02 | General Electric Co. | Method and apparatus for eliminating thermal bowing of steam turbine rotors |
| US6439844B1 (en) * | 2000-12-11 | 2002-08-27 | General Electric Company | Turbine bucket cover and brush seal |
| CA2359933C (en) * | 2001-02-08 | 2006-03-14 | Mitsubishi Heavy Industries, Ltd. | Shaft seal and gas turbine |
| US6550777B2 (en) * | 2001-06-19 | 2003-04-22 | General Electric Company | Split packing ring segment for a brush seal insert in a rotary machine |
| US6558118B1 (en) * | 2001-11-01 | 2003-05-06 | General Electric Company | Bucket dovetail bridge member and method for eliminating thermal bowing of steam turbine rotors |
| US6571470B1 (en) * | 2001-12-06 | 2003-06-03 | General Electric Company | Method of retrofitting seals in a gas turbine |
| US6692228B2 (en) * | 2002-03-14 | 2004-02-17 | General Electric Company | Rotor insert assembly and method of retrofitting |
| US6685427B1 (en) * | 2002-07-23 | 2004-02-03 | General Electric Company | Brush seal for a rotary machine and method of retrofitting |
| US7270333B2 (en) * | 2002-11-27 | 2007-09-18 | United Technologies Corporation | Brush seal with adjustable clearance |
| GB0319002D0 (en) * | 2003-05-13 | 2003-09-17 | Alstom Switzerland Ltd | Improvements in or relating to steam turbines |
| US6821086B1 (en) * | 2003-06-03 | 2004-11-23 | General Electric Company | Turbomachine seal assembly and method therefor |
| US7040861B2 (en) * | 2004-03-04 | 2006-05-09 | General Electric Company | Method and apparatus for reducing self sealing flow in combined-cycle steam turbines |
| US20080001363A1 (en) * | 2006-06-28 | 2008-01-03 | General Electric Company | Brush sealing system and method for rotary machines |
-
2005
- 2005-11-21 US US11/282,703 patent/US20070114727A1/en not_active Abandoned
-
2006
- 2006-11-17 DE DE102006054685A patent/DE102006054685A1/en not_active Withdrawn
- 2006-11-21 JP JP2006313861A patent/JP2007138948A/en not_active Withdrawn
- 2006-11-21 CN CNA200610172851XA patent/CN1971002A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244682A (en) * | 2013-04-24 | 2013-08-14 | 石伟伟 | Blade-type sealing device |
| CN103244682B (en) * | 2013-04-24 | 2016-01-27 | 南京博沃科技发展有限公司 | Vane sealing device |
Also Published As
| Publication number | Publication date |
|---|---|
| US20070114727A1 (en) | 2007-05-24 |
| DE102006054685A1 (en) | 2007-05-24 |
| JP2007138948A (en) | 2007-06-07 |
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