[특허]L brush seal for turbomachinery application

L brush seal for turbomachinery application 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F01D-011/08 F16J-015/32 F01D-011/00
출원번호	US-0097753 (2013-12-05)
등록번호	US-9587505 (2017-03-07)
발명자 / 주소	Mukhopadhyay, Debabrata Zheng, Xiaoqing
출원인 / 주소	General Electric Company
대리인 / 주소	Nixon & Vanderhye PC
인용정보	피인용 횟수 : 0 인용 특허 : 42

초록 ▼

A seal arrangement between radially-opposed rotating and stationary components in a turbomachine includes a first rotating component, a second stationary component, and a brush seal located radially therebetween. The brush seal has an axially-extending portion secured to the second stationary component, and an inwardly-extending portion extending across a gap between the first and second components. An inner ring portion of the second stationary component is located radially inward of, and in engagement with the axially-extending portion and at least part of the inwardly-extending portion of the brush seal, wherein an end of the axially-extending portion of the brush seal remote from the inwardly-extending portion is sandwiched between a pair of side rails fixed between the inner ring portion and an outer ring portion of the second stationary component.

대표청구항 ▼

1. A seal arrangement between radially-opposed rotating and stationary components in a turbomachine comprising: a first rotating component;a second stationary component;a brush seal located radially between said first rotating component and said second stationary component, said brush seal having an axially-extending portion secured to said second stationary component, and an inwardly-extending portion extending across a gap between said first and second components, wherein an end of said axially-extending portion of said brush seal remote from said inwardly-extending portion is sandwiched between a pair of side rails; andan inner ring portion of said second stationary component located radially inward of, and in engagement with said axially-extending portion and at least part of said inwardly-extending portion of said brush seal, wherein said pair of side rails is held between said inner ring portion and an outer ring portion of said second stationary component, leaving an axially-extending radial gap between said axially-extending portion of said brush seal and said outer ring portion of said second stationary component. 2. The seal arrangement of claim 1, wherein said outer ring portion is provided with a radially inwardly directed front plate axially spaced from said inwardly-extending portion of said brush seal. 3. The seal arrangement of claim 1 wherein said inner ring portion is provided with a seal tooth downstream of said brush seal. 4. The seal arrangement of claim 1, wherein said outer ring portion is provided with a hook flange adapted to be received in a complementary slot formed in an inner cover of a stationary turbine nozzle. 5. The seal arrangement of claim 4 wherein a spring is located radially between a radially outer surface of said outer ring portion and an inwardly facing wall of said complementary slot. 6. The seal arrangement of claim 1, wherein said inner ring portion is attached to said outer ring portion through said side rails and said brush seal. 7. The seal arrangement of claim 6 wherein said inner ring portion is attached to said outer ring portion by means of welds extending through said inner ring portion, said brush seal and into said outer ring portion. 8. The seal arrangement of claim 1, wherein said outer ring portion is provided with a plate portion extending axially beyond said inwardly-extending portion of said brush seal. 9. The seal arrangement of claim 1, wherein said second stationary component comprises an inner cover of a turbine nozzle, said inner ring portion and said outer ring portion are integral parts of said inner cover and wherein said first rotary component comprises a turbine rotor. 10. The seal arrangement of claim 1, wherein said first rotating component comprises a turbine bucket tip shroud and said second stationary component comprises a stator surface opposed to said tip shroud. 11. A seal arrangement between radially-opposed rotating and stationary components in a turbomachine comprising: a first rotating component;a second stationary component;a brush seal located radially between said first rotating component and said second stationary component, said brush seal having an axially-extending portion secured to said second stationary component, and an inwardly-extending portion extending across a gap between said first and second components;an inner ring located radially inward of, and in engagement with said axially-extending portion and at least part of said inwardly-extending portion of said brush seal;wherein an end of said axially-extending portion of said brush seal remote from said inwardly-extending portion is sandwiched between a pair of side rails;wherein said pair of side rails is held between said inner ring and an outer ring, leaving an axially-extending radial gap between said axially-extending portion of said brush seal and said outer ring; andwherein said outer ring is provided with a hook flange adapted to be received in a complementary slot formed in an inner cover of a stationary turbine nozzle. 12. The seal arrangement of claim 11 wherein said outer ring is provided with a radially inwardly directed front plate axially spaced from said inwardly-extending portion of said brush seal. 13. The seal arrangement of claim 11 wherein said inner ring is attached to said outer ring through said side rails and said brush seal. 14. The seal arrangement of claim 13 wherein said inner ring is attached to said outer ring by means of welds extending through said inner ring, said brush seal and into said outer ring.

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Tseng Wu-Yang (West Chester OH) Bristol Brent L. (Milford OH) Hetico Rolf R. (Cincinnati OH) Glynn Christopher C. (Hamilton OH), Brush seal.
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Wright Christopher,GBX, Brush seal.
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Kemsley Nicholas J,GBX, Brush seal and method for the manufacture of a brush seal.
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Ming Zhou ; Sal Albert Leone ; Susan Marie Hyde ; Bruce Miller ; Peter A. Stinnett, Brush seal and method of using brush seal.
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Flower Ralph F. J. (Devizes GB2), Brush seal assembly.
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Inoue, Hideyuki, Brush seal device.
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Wolfe Christopher Edward ; Bagepalli Bharat Sampathkumar ; Turnquist Norman Arnold ; Cromer Robert Harold ; Lee Minyoung, Brush seal for use on rough rotating surfaces.
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Norman Arnold Turnquist ; Frederick George Baily ; Christopher Edward Wolfe, Brush seal segment end bristle protection and flexibility maintenance device and methods of forming the segment.
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Bagepalli Bharat S. ; Chiu R. Paul ; Cromer Robert Harold ; Crum Gregory Allan ; Dinc Osman Saim,TRX ; Furman Anthony Holmes ; Marks Paul Thomas ; Markytan Rudolf Matthias ; Skinner David Robert ; Tu, Brush seals and combined labyrinth and brush seals for rotary machines.
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Alfons Gail DE; Stefan Beichl DE; Werner Klemens DE, Brush seals with bristles arranged at an angle.
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Addis Mark E. ; Dalton Willaim S., Brush-seal designs for elastic fluid turbines.
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Dalton,Wiliam S.; Sulda,Eric; Dalton,Patrick S.; Catlow,William G., Brush-seal designs for turbines and similar rotary apparatus.
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Morgan, Jonathan J; Twiggs, Nigel; Enderby, Christian H, Developments relating to a rotor arrangement.
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Wei Tong ; Robert Russell Mayer ; Mahmut Faruk Aksit, Flexible magnetic rubber brush seal for generators.
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Grondahl, Clayton M., Leaf seal assembly including polymer member and rotary machine containing such seal assembly.
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Bouchard Joseph P. (Arundel ME) Long Merrell W. (North Waterboro ME), Method and apparatus for improving the airsealing effectiveness in a turbine engine.
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Flower, Ralph Franklin John, Method of forming brush seals between rotating components.
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Kelch George W. (Palm Beach Gardens FL) Shade John L. (Jupiter FL), Multi-layered brush seal.
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Mayr Alfred,DEX ; Hagg Dieter,DEX, Process and arrangement for manufacturing brush-type seals.
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Addis, Mark E., Replaceable brush seal elements.
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John F. Justak, Robust hydrodynamic brush seal.
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Gail, Alfons; Gräbeldinger, Wilhelm; Rauschmeier, Alexander, Seal arrangement.
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Grondahl, Clayton M., Seal assembly and rotary machine containing such seal.
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Hogg, Simon Ian; Urlichs, Karl, Sealing arrangement using brush seals.
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Bagepalli Bharat S. (Schenectady NY) Dinc Osman S. (Troy NY) Barnes John (Schenectady NY), Self-accommodating brush seal for gas turbine combustor.
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Boeck, Alexander, Spoke-centered brush seal arrangement for use in a gas turbine.
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Turnquist Norman Arnold ; Dinc Osman Saim ; Reluzco George Ernest ; Cornell Daniel Richard ; Cromer Robert Harold ; Robbins Kenneth Elmer ; Wolfe Christopher Edward, Steam turbine having a brush seal assembly.
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Reluzco George Ernest ; Dinc Osman Saim ; Turnquist Norman Arnold ; Cromer Robert Harold, Turbine brush seal protection device and method.
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Ingistov Steve, Turbine power plant having minimal-contact brush seal augmented labyrinth seal.
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Ingistov,Steve, Turbine power plant having minimal-contact brush seal augmented labyrinth seal.
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L brush seal for turbomachinery application 원문보기

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