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특허 상세정보

Brush seals and combined labyrinth and brush seals for rotary machines

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F16J-015/447   
미국특허분류(USC) 277/355 ; 277/418
출원번호 US-0855013 (1997-05-13)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Nixon & Vanderhye
인용정보 피인용 횟수 : 57  인용 특허 : 51
초록

Brush seals are retrofitted into existing turbine labyrinth seal rings to create a fail-safe seal design at locations wherever labyrinth seals are currently used, including interstage shaft seals, rotor end seals, bucket (or blade) tip seals and spill strips. Brush seals, per se, when used in place of labyrinth seals, can result in considerable span reductions of steam turbines, or machines with more turbine stages for a given span. Application to end packings results in the potential elimination of gland sealing/exhauster systems. Brush seal life can be...

대표
청구항

[ What is claimed is:] [1.] In a rotary machine having a rotatable component comprised of a plurality of rotatable blades and a component comprised of a sealing strip fixed against rotation, said components lying about a common axis, said blades carrying covers adjacent radial outer ends thereof, and a labyrinth seal between said components including at least one generally circumferentially extending tooth carried by said sealing strip and projecting generally radially toward said covers to effect a seal therebetween, a method of forming a combination la...

이 특허에 인용된 특허 (51)

  1. Steber Charles E. (Scotia NY). Aft mounting system for combustion transition duct members. USP1983124422288.
  2. Veau Albert (Combs La Ville FRX). Annular brush gasket. USP1994055316318.
  3. Synfelt Edward G. (Schenectady NY). Apparatus and method for providing uniform radial clearance of seals between rotating and stationary components. USP1996045509780.
  4. Werner Klemens (Munich DEX) Berger Horst (Lochham DEX) Merz Herbert (Munich DEX) Schunn Thomas (Emmering DEX). Apparatus for manufacturing a brush seal. USP1988034730876.
  5. Jewett LeRoy D. (Schenectady NY) Brinkman Earl H. (Schenectady NY) Jones Raymond J. (Duanesburg NY) Troischt David B. (Schenectady NY). Apparatus for providing uniform radial clearance of seals between rotating and stationary components. USP1996045503405.
  6. Rulis Raymond J. (Birmingham MI). Braided filamentary sealing element. USP1991024989886.
  7. Belcher Bryan L. (Leamington Spa GB2). Brush seal. USP1988074756536.
  8. Tseng Wu-Yang (West Chester OH) Bristol Brent L. (Milford OH) Hetico Rolf R. (Cincinnati OH) Glynn Christopher C. (Hamilton OH). Brush seal. USP1994085335920.
  9. Tseng Wu-Yang (West Chester OH) Glynn Christopher C. (Hamilton OH) Bristol Brent L. (Milford OH) Hetico Rolf R. (Cincinnati OH). Brush seal. USP1994065318309.
  10. Whrl Bernhard (Gauting DEX) Hagemeister Klaus (Munich DEX). Brush seal. USP1988114781388.
  11. Baird Donald J. (Jupiter FL) Rhodes Brett D. (Palm Beach Gardens FL) Griffin ; Jr. William W. (Jupiter FL). Brush seal and damper. USP1992055114159.
  12. Norbury David S. (Bristol GB2). Brush seal arrangement. USP1993035192084.
  13. Flower Ralph F. J. (Devizes GB2). Brush seal assembly. USP1996015480165.
  14. Hanrahan Paul R. (85 Songbird La. Farmington CT 06032). Brush seal assembly. USP1991115066025.
  15. Short John F. (Scituate RI). Brush seal device having a floating backplate. USP1994105351971.
  16. Basu Prithwish (Pawtucket RI). Brush seal device having a recessed back plate. USP1995035401036.
  17. Flower Ralph F. J. (Bath GB2). Brush seal with asymmetrical elements. USP1992085135237.
  18. Snyder James G. (Newark OH) Gernhardt Gregory H. (Old Saybrook CT). Brush seal with fool proofing and anti-rotation tab. USP1997015597167.
  19. Flower Ralph F. J. (Devizes GB2). Brush seals. USP1992025090710.
  20. Snell Leonard S. (Bristol GB2). Brush seals. USP1980054202554.
  21. Merz Herbert (Munich DEX). Brush seals of ceramic material for thermal turbomachines. USP1989034809990.
  22. Wood Ronald M. (Indianapolis IN). Combustor construction. USP1980044195476.
  23. Reynolds Harold G. (West Palm Beach FL). Combustor seal and support. USP1988114785623.
  24. Atkinson Edward (Morrow OH) Bristol Brent L. (Milford OH). Constant pressure drop multiple stage brush seal. USP1992045106104.
  25. Ferguson John G. (Stroud GB2). Enhanced performance brush seals. USP1990114971336.
  26. Spain Raymond G. (Farmington Hills MI) Bailey Carlos (Farmington Hills MI). Fluid seal structure. USP1991075029875.
  27. Atterbury Leslie G. (Herts GB2). Gas turbine engine seal. USP1983114415309.
  28. Pellow Terence R. (Watford GB2) Midgley Ronald A. (Weston-on-Trent GB2). Gas turbine engine shroud ring mounting. USP1993015181827.
  29. Steinetz Bruce M. (Broadview Heights OH) Sirocky Paul J. (Middleburg Heights OH). High temperature, flexible pressure-actuated, brush seal. USP1991125076590.
  30. Orlando Robert J. (West Chester OH) Johnston ; Jr. Paul B. (Schenectady NY). Labyrinth seal system. USP1991075029876.
  31. Bouchard Joseph P. (Arundel ME) Long Merrell W. (North Waterboro ME). Method and apparatus for improving the airsealing effectiveness in a turbine engine. USP1997055630590.
  32. Galbraith Shawn W. (Scotia NY) Coll William V. (Niskayuna NY) Ahl Dennis R. (Sprakers NY) Seconde Keith E. (Schenectady NY). Method for modifying a turbine diaphragm for use with a reduced rotor lan diameter. USP1996065524340.
  33. Jewett LeRoy D. (Schenectady NY) Brinkman Earl H. (Schenectady NY) Jones Raymond J. (Duanesburg NY) Troischt David B. (Schenectady NY). Method for providing uniform radial clearance of labyrinth seals between rotating and stationary components. USP1994125374068.
  34. Kelch George W. (Palm Beach Gardens FL) Shade John L. (Jupiter FL). Multi-layered brush seal. USP1993045201530.
  35. Morrison Bruce L. (Schenectady NY) Morson Alexander (Clifton Park NY). Positive variable clearance labyrinth seal. USP1991035002288.
  36. Hagle Michael P. (Mason OH). Seal assembly for segmented turbine engine structures. USP1991125074748.
  37. Flower Ralph F. J. (Devizes GB2). Sealing device. USP1995125474305.
  38. Hoffelner Herbert (Markt Indersdorf DEX). Sealing device for turbo engines and the like. USP1991065026252.
  39. Reichl Alfred (Stein DEX). Sealing strip for encapsulated measuring device. USP1986044580346.
  40. Moore Alan (Bristol GB2). Seals. USP1982114358120.
  41. Woodbridge, Keith W.; Hjertzen, Derrick G.. Seals for bearings. USP1985094541741.
  42. Wilkinson Samual C. W. (Chichester GB2). Seals for liquid-tight closure between rotary component and partition. USP1983094403779.
  43. Noone Lawrence E. (Lyman ME) Lagasse Leo J. (Welles ME). Segmented brush seal. USP1993015176389.
  44. Noone Lawrence E. (Lyman ME) Lagasse Leo J. (Welles ME). Segmented brush seal. USP1992055110033.
  45. Bagepalli Bharat S. (Schenctady NY) Dinc Osman S. (Troy NY) Barnes John (Schnectady NY) Cromer Robert (Johnstown NY) Imam Imdad (Niskayuna NY). Self-accommodating brush seal for gas turbine combustor. USP1995035400586.
  46. Scott Thomas L. (Marblehead MA). Shielded combustor. USP1986024567730.
  47. Ferguson ; deceased John G. (late of Stroud GB2 by Judith A. Ferguson ; executrix). Sprung brush seals. USP1992125174582.
  48. Stec Philip F. (Medford MA). Trenched brush seal. USP1993015181728.
  49. Sanders William P. (Aurora CAX) Mitola Anthony F. (Clifton Park NY). Turbine seal with sealing strip and rubbing strip. USP1997025599026.
  50. Commaret Patrice (Le Mee s/Seine FRX) Desaulty Michel A. A. (Vert St Denis FRX) Hernandez Didier H. (Ormoy FRX) Laugeois Jean-Claude (Palaiseau FRX) Mandet Grard M. F. (Fericy FRX) Martinez Rodolphe . Turbojet engine combustion chamber with a double wall converging zone. USP1990024901522.
  51. Bagepalli Bharat S. (Schenectady NY) Cromer Robert H. (Gloversville NY) Dinc Osman S. (Troy NY) Maynard James (Clifton Park NY). Woven seal and hybrid cloth-brush seals for turbine applications. USP1995125474306.

이 특허를 인용한 특허 피인용횟수: 57

  1. Awtar, Shorya; Kemp, Timothy R.; Laurer, Kurt N.; Baily, Frederick G.. Active retractable seal for turbo machinery and related method. USP2013098540479.
  2. King, Robert Dean; Steigerwald, Robert L.. Apparatus for energy transfer using converter and method of manufacturing same. USP20181110131234.
  3. King, Robert Dean; Steigerwald, Robert Louis. Apparatus for energy transfer using converter and method of manufacturing same. USP2017119809121.
  4. Blatchford,David Paul; Bridge,Richard Martin; Hemsley,Philip David; Hesketh,Alan; Lord,Adrian. Axial flow stream turbines. USP2007037186074.
  5. Zheng, Xiaoqing; Couture, Jr., Bernard Arthur; Bowman, Michael John; Adis, William Edward; Mack, Michael Dennis; Clark, Kim James. Brush seal. USP2016129528384.
  6. Zheng, Xiaoqing; Couture, Jr., Bernard Arthur; Bowman, Michael John; Adis, William Edward; Mack, Michael Dennis; Clark, Kim James. Brush seal. USP2018039926800.
  7. Turnquist, Norman Arnold; Burnett, Mark Edward; Kizil, Huseyin; Mundra, Kamlesh. Brush seal for static turbine components. USP2005106951339.
  8. Zheng, Xiaoqing; Mack, Michael Dennis; Mukhopadhyay, Debabrata. Brush seal for turbine. USP2016049322287.
  9. Maurer, Donald G.; Stanwicks, Peter L.. Coal pulverizer brush seal assembly. USP2004016679500.
  10. Deo, Hrishikesh Vishvas; Turnquist, Norman Arnold; Baily, Frederick George; Couture, Jr., Bernard Arthur; Feeny, Sean Douglas; Adis, William Edward; Awtar, Shorya. Compliant plate seal with an annular ring for turbomachinery and methods of assembling the same. USP2012048162324.
  11. Parry, William Thomas. Expanding sealing strips for steam turbines. USP2005056896482.
  12. Farrell, Alison Carol; Hofer, Douglas Carl; Lathrop, Norman Douglas; Overbaugh, Jr., Raymond Kenneth; Parry, William Thomas; Robertson, Kenneth James. Flowpath sealing and streamlining configuration for a turbine. USP2004086779972.
  13. Ebert,Stephan J.; Goss,James D.; Hicks,Neil G.; McVey,Scott E.; Moharos,Jozsef L.; Nunez,Dean J.. Gas-buffered seal assembly and method therefor. USP2006016991235.
  14. Walcott, Stephen Randolph; Leach, David; Sarshar, Hamid Reza. Hybrid honeycomb and brush seal for steam gland. USP2004126827350.
  15. Sarshar, Hamid Reza; Turnquist, Norman Arnold; Dinc, Osman Saim. In situ load sharing brush seals. USP2005026854735.
  16. Goss, James D.; Moharos, Jozsef L.; Nunez, Dean J.. Inter-fluid seal assembly and method therefor. USP2005126976679.
  17. Mukhopadhyay, Debabrata; Zheng, Xiaoqing. L brush seal for turbomachinery application. USP2017039587505.
  18. Stefanis, Vasileios; Georgakis, Christos. Labyrinth seal for turbines. USP2016019234434.
  19. Grondahl, Clayton M.. Leaf seal assembly including polymer member and rotary machine containing such seal assembly. USP2013128596973.
  20. Mortzheim, Jason Paul; Adis, William Edward; Dewhurst, Edward Arthur; Boisvert, Reni. Method and system for fabricating a seal ring. USP2012068205333.
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  22. Laurer, Kurt Neal; Barh, Kevin Joseph; Couture, Bernard Arthur; Mortzheim, Jason Paul. Methods and apparatus to facilitate sealing in a turbine. USP2009067540708.
  23. Berberich, Nathan Robert. Methods and systems for sealing rotating machines. USP2012098256575.
  24. Muldoon, Marc J.; Reinhardt, Gregory E.. Mid-turbine frame buffer system. USP2016079382844.
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  34. Grondahl, Clayton M.. Seal assembly and rotary machine containing such seal. USP2009087578509.
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  37. Julien, Michel; Duff, Gabriel; Blanchette, Dominic. Seal for energy recovery wheels having spaced apart lateral walls. USP2016059353868.
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  46. Awtar, Shorya; Adis, William Edward; Kowalczyk, Mark William; Turnquist, Norman Arnold. Shaft seal using shingle members. USP2010047703774.
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