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GB2021209A - Brush Seals - Google Patents

Brush Seals

Info

Publication number
GB2021209A
GB2021209A GB7916262A GB7916262A GB2021209A GB 2021209 A GB2021209 A GB 2021209A GB 7916262 A GB7916262 A GB 7916262A GB 7916262 A GB7916262 A GB 7916262A GB 2021209 A GB2021209 A GB 2021209A
Authority
GB
United Kingdom
Prior art keywords
bristle
bristles
diameter
angle beta
brush seals
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.)
Withdrawn
Application number
GB7916262A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rolls Royce PLC
Original Assignee
Rolls Royce PLC
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 Rolls Royce PLC filed Critical Rolls Royce PLC
Priority to GB7916262A priority Critical patent/GB2021209A/en
Publication of GB2021209A publication Critical patent/GB2021209A/en
Withdrawn legal-status Critical Current

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
    • F16J15/16—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)
  • Polishing Bodies And Polishing Tools (AREA)
  • Sealing Devices (AREA)
  • Brushes (AREA)

Abstract

A brush seal comprises a plurality of tightly-packed bristles 1 sandwiched between a pair of spaced side plates 2 and having free ends ad projecting at an angle alpha therefrom. The ends of the bristles are machined so that when they are in position against the surface of another component at a diameter 5 which represents an interference fit the end of each bristle lies in a plane P which makes an angle beta with the longitudinal axis of the bristle to produce a wedge-shaped space in which air or liquid will be drawn so that the bristle will lift from the surface. The machining of the bristle ends is carried out with the bristles deflected to an even greater interference at a diameter 8 so that the angle beta is formed when the bristles spring back. <IMAGE>
GB7916262A 1978-05-17 1979-05-10 Brush Seals Withdrawn GB2021209A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7916262A GB2021209A (en) 1978-05-17 1979-05-10 Brush Seals

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2022978 1978-05-17
GB7916262A GB2021209A (en) 1978-05-17 1979-05-10 Brush Seals

Publications (1)

Publication Number Publication Date
GB2021209A true GB2021209A (en) 1979-11-28

Family

ID=26254542

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7916262A Withdrawn GB2021209A (en) 1978-05-17 1979-05-10 Brush Seals

Country Status (1)

Country Link
GB (1) GB2021209A (en)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2483556A1 (en) * 1980-05-31 1981-12-04 Rolls Royce SEALING ASSEMBLY
EP0199322A1 (en) * 1985-04-20 1986-10-29 Mtu Motoren- Und Turbinen-Union MàœNchen Gmbh Brush seal
DE3735766A1 (en) * 1986-10-24 1988-04-28 Rolls Royce Plc METHOD AND DEVICE FOR PRODUCING BRUSH SEALS
US4818199A (en) * 1986-10-28 1989-04-04 Volkswagen Ag Spiral displacement machine for compressible media with embossed sheet metal seal strip
US4971336A (en) * 1987-11-13 1990-11-20 Rolls-Royce Plc. Enhanced performance brush seals
US5031922A (en) * 1989-12-21 1991-07-16 Allied-Signal Inc. Bidirectional finger seal
US5071138A (en) * 1989-12-21 1991-12-10 Allied-Signal Inc. Laminated finger seal
US5108116A (en) * 1991-05-31 1992-04-28 Allied-Signal Inc. Laminated finger seal with logarithmic curvature
WO1998008010A3 (en) * 1996-08-23 1998-05-14 Allied Signal Inc Noncontacting finger seal
EP0866248A1 (en) * 1997-03-22 1998-09-23 Mtu Motoren- Und Turbinen-Union München Gmbh Brush seal with inclined bristles in the circumferential direction
EP0933567A3 (en) * 1998-01-30 2000-02-23 Rolls-Royce Plc A seal arrangement
US6079714A (en) * 1997-02-18 2000-06-27 European Gas Turbines Limited Brush seal and method for the manufacture of a brush seal
US6364316B1 (en) 1999-02-11 2002-04-02 Honeywell International Inc. Dual pressure balanced noncontacting finger seal
US6736401B2 (en) 2001-12-19 2004-05-18 Honeywell International, Inc. Laminated finger seal with ceramic composition
EP2818770A3 (en) * 2013-06-28 2015-05-20 Rolls-Royce plc A leaf seal
US9206905B2 (en) 2013-06-28 2015-12-08 Rolls-Royce Plc Leaf seal

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2483556A1 (en) * 1980-05-31 1981-12-04 Rolls Royce SEALING ASSEMBLY
EP0199322A1 (en) * 1985-04-20 1986-10-29 Mtu Motoren- Und Turbinen-Union MàœNchen Gmbh Brush seal
DE3735766A1 (en) * 1986-10-24 1988-04-28 Rolls Royce Plc METHOD AND DEVICE FOR PRODUCING BRUSH SEALS
FR2605541A1 (en) * 1986-10-24 1988-04-29 Rolls Royce Plc PROCESS FOR MACHINING BRUSH SEALS AND APPARATUS FOR IMPLEMENTING SAME
GB2196705A (en) * 1986-10-24 1988-05-05 Rolls Royce Plc A method of machining annular brush seals by use of a revolving cutting and grinding means
US4839997A (en) * 1986-10-24 1989-06-20 Rolls-Royce Plc Brush seal manufacture
GB2196705B (en) * 1986-10-24 1990-06-13 Rolls Royce Plc Improvements in or relating to brush seal manufacture
US4818199A (en) * 1986-10-28 1989-04-04 Volkswagen Ag Spiral displacement machine for compressible media with embossed sheet metal seal strip
US4971336A (en) * 1987-11-13 1990-11-20 Rolls-Royce Plc. Enhanced performance brush seals
US5071138A (en) * 1989-12-21 1991-12-10 Allied-Signal Inc. Laminated finger seal
US5031922A (en) * 1989-12-21 1991-07-16 Allied-Signal Inc. Bidirectional finger seal
US5108116A (en) * 1991-05-31 1992-04-28 Allied-Signal Inc. Laminated finger seal with logarithmic curvature
WO1998008010A3 (en) * 1996-08-23 1998-05-14 Allied Signal Inc Noncontacting finger seal
US6079714A (en) * 1997-02-18 2000-06-27 European Gas Turbines Limited Brush seal and method for the manufacture of a brush seal
EP0866248A1 (en) * 1997-03-22 1998-09-23 Mtu Motoren- Und Turbinen-Union München Gmbh Brush seal with inclined bristles in the circumferential direction
EP0933567A3 (en) * 1998-01-30 2000-02-23 Rolls-Royce Plc A seal arrangement
US6267381B1 (en) 1998-01-30 2001-07-31 Rolls-Royce Plc Resilient strip seal arrangement
US6364316B1 (en) 1999-02-11 2002-04-02 Honeywell International Inc. Dual pressure balanced noncontacting finger seal
US6736401B2 (en) 2001-12-19 2004-05-18 Honeywell International, Inc. Laminated finger seal with ceramic composition
EP2818770A3 (en) * 2013-06-28 2015-05-20 Rolls-Royce plc A leaf seal
US9206905B2 (en) 2013-06-28 2015-12-08 Rolls-Royce Plc Leaf seal
US9714711B2 (en) 2013-06-28 2017-07-25 Rolls-Royce Plc Leaf seal

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)