WO2002023069A3 - Floating brush seal optionally disposed in labyrinth seal - Google Patents

Floating brush seal optionally disposed in labyrinth seal Download PDF

Info

Publication number
WO2002023069A3
WO2002023069A3 PCT/US2001/028537 US0128537W WO0223069A3 WO 2002023069 A3 WO2002023069 A3 WO 2002023069A3 US 0128537 W US0128537 W US 0128537W WO 0223069 A3 WO0223069 A3 WO 0223069A3
Authority
WO
WIPO (PCT)
Prior art keywords
seal
brush seal
labyrinth
spring
floating
Prior art date
Application number
PCT/US2001/028537
Other languages
French (fr)
Other versions
WO2002023069A2 (en
Inventor
William J Catlow
Eric Sulda
Original Assignee
Turbocare Inc
William J Catlow
Eric Sulda
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Turbocare Inc, William J Catlow, Eric Sulda filed Critical Turbocare Inc
Priority to AU2001290828A priority Critical patent/AU2001290828A1/en
Publication of WO2002023069A2 publication Critical patent/WO2002023069A2/en
Publication of WO2002023069A3 publication Critical patent/WO2002023069A3/en

Links

Classifications

    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Sealing Devices (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

A floating brush seal (101) is provided for a gas or steam turbine or a compressor that typically includes labyrinth seals (307). A separate holder is provided, or a groove or recess is provided in a labyrinth seal, and the brush seal is allowed to float therein because it is supported on a spring (311) and is not affixed to the holder or the labyrinth seal. The spring or other resilient member urges the brush seal towards the shaft or rotor (111), preferably only so much as it weighs so that the seal effectively floats because the spring supports only the weight of the brush seal. Use of a floating brush seal allows for the use of bristles having a desired stiffness (more or less stiff) and avoids interference transients that would degrade the bristles and decrease the useful life of the brush seal.
PCT/US2001/028537 2000-09-14 2001-09-13 Floating brush seal optionally disposed in labyrinth seal WO2002023069A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001290828A AU2001290828A1 (en) 2000-09-14 2001-09-13 Floating brush seal optionally disposed in labyrinth seal

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US66201700A 2000-09-14 2000-09-14
US09/662,017 2000-09-14

Publications (2)

Publication Number Publication Date
WO2002023069A2 WO2002023069A2 (en) 2002-03-21
WO2002023069A3 true WO2002023069A3 (en) 2002-06-27

Family

ID=24656042

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/028537 WO2002023069A2 (en) 2000-09-14 2001-09-13 Floating brush seal optionally disposed in labyrinth seal

Country Status (2)

Country Link
AU (1) AU2001290828A1 (en)
WO (1) WO2002023069A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8657298B2 (en) 2011-08-15 2014-02-25 General Electric Company Brush seal with backing plate tooth

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6431827B1 (en) * 2000-12-21 2002-08-13 General Electric Company Bucket tip brush seals in steam turbines and methods of installation
US7093835B2 (en) * 2002-08-27 2006-08-22 United Technologies Corporation Floating brush seal assembly
DE102004024080B4 (en) * 2004-05-14 2014-03-20 MTU Aero Engines AG brush seal
WO2009024770A1 (en) * 2007-08-22 2009-02-26 Cross Manufacturing Company (1938) Ltd Improvements in relation to brush seals
EP2218947A1 (en) * 2009-02-16 2010-08-18 Siemens Aktiengesellschaft Rotor for a flow machine with a shaft seal and method for repairing the rotor
EP2567072B1 (en) * 2010-05-03 2019-11-13 Elliott Company Packing case with brush ring seal
US9074487B2 (en) * 2011-08-17 2015-07-07 General Electric Company Self-lubricating brush seal assembly and method of reducing leakage
JP2015115991A (en) * 2013-12-09 2015-06-22 東芝三菱電機産業システム株式会社 Rotary electric machine
CN106525359B (en) * 2016-10-27 2018-12-25 中国地质大学（北京） A kind of plasma discharge cavity body labyrinth seal experimental system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5395124A (en) * 1993-01-04 1995-03-07 Imo Industries, Inc. Retractible segmented packing ring for fluid turbines having gravity springs to neutralize packing segment weight forces
US5474305A (en) * 1990-09-18 1995-12-12 Cross Manufacturing Company (1938) Limited Sealing device
GB2301635A (en) * 1995-04-12 1996-12-11 Gec Alsthom Ltd Shaft seal arrangement
US5934684A (en) * 1997-05-27 1999-08-10 Brandon; Ronald Earl Retractable segmented packing ring for fluid turbines having gravity springs to neutralize packing segment weight forces
US6027121A (en) * 1997-10-23 2000-02-22 General Electric Co. Combined brush/labyrinth seal for rotary machines
US6226975B1 (en) * 1999-09-14 2001-05-08 Steven G. Ingistov Turbine power plant having a floating brush seal

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4436311A (en) 1982-04-20 1984-03-13 Brandon Ronald E Segmented labyrinth-type shaft sealing system for fluid turbines
US5599026A (en) 1995-09-06 1997-02-04 Innovative Technology, L.L.C. Turbine seal with sealing strip and rubbing strip
CN1215251C (en) 1996-08-05 2005-08-17 罗纳德·E·布兰登 Sealing arrngement for fluid turbines

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5474305A (en) * 1990-09-18 1995-12-12 Cross Manufacturing Company (1938) Limited Sealing device
US5395124A (en) * 1993-01-04 1995-03-07 Imo Industries, Inc. Retractible segmented packing ring for fluid turbines having gravity springs to neutralize packing segment weight forces
GB2301635A (en) * 1995-04-12 1996-12-11 Gec Alsthom Ltd Shaft seal arrangement
US5934684A (en) * 1997-05-27 1999-08-10 Brandon; Ronald Earl Retractable segmented packing ring for fluid turbines having gravity springs to neutralize packing segment weight forces
US6027121A (en) * 1997-10-23 2000-02-22 General Electric Co. Combined brush/labyrinth seal for rotary machines
US6226975B1 (en) * 1999-09-14 2001-05-08 Steven G. Ingistov Turbine power plant having a floating brush seal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8657298B2 (en) 2011-08-15 2014-02-25 General Electric Company Brush seal with backing plate tooth

Also Published As

Publication number Publication date
AU2001290828A1 (en) 2002-03-26
WO2002023069A2 (en) 2002-03-21

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