GB803452A - Improvements in or relating to labyrinth seals - Google Patents

Improvements in or relating to labyrinth seals

Info

Publication number
GB803452A
GB803452A GB28994/56A GB2899456A GB803452A GB 803452 A GB803452 A GB 803452A GB 28994/56 A GB28994/56 A GB 28994/56A GB 2899456 A GB2899456 A GB 2899456A GB 803452 A GB803452 A GB 803452A
Authority
GB
United Kingdom
Prior art keywords
strip
groove
crimped
helical
brazing
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.)
Expired
Application number
GB28994/56A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB803452A publication Critical patent/GB803452A/en
Expired legal-status Critical Current

Links

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
    • F01D11/02—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
    • F16J15/44—Free-space packings

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)

Abstract

803,452. Making labyrinth packing; soldering. COMERY, P. D. Sept. 21, 1956 [Sept. 22, 1955], No. 28994/56. Classes 83 (2) and 83 (4). [Also in Group XXVI] An element for a labyrinth seal is constituted by a metallic strip 14 which is formed across its width with crimps which are of greater magnitude at one edge than at the other so as to cause it to take up the desired circular or helical form. For sealing the space between a rotary shaft 18, Fig. 2, and a stationary mounting 15 the latter may be formed with a helical groove 17 for receiving a helical strip 14 or a number of annular grooves each of which receives a strip crimped to circular form. The strip may be secured in the groove by brazing, the brazing material being provided in the form of a band 22, Fig. 4, at the bottom of the groove 17, and/or a ring 23 placed against the crimped strip at the top of the groove, and the assembly is heated until the brazing material flows within and/or into the groove. The radius of the crimped element is made slightly larger than of the surface which will support the strip so that the resiliency of the strip will tend to hold it in the groove during brazing.
GB28994/56A 1955-09-22 1956-09-21 Improvements in or relating to labyrinth seals Expired GB803452A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US803452XA 1955-09-22 1955-09-22

Publications (1)

Publication Number Publication Date
GB803452A true GB803452A (en) 1958-10-22

Family

ID=22156792

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28994/56A Expired GB803452A (en) 1955-09-22 1956-09-21 Improvements in or relating to labyrinth seals

Country Status (1)

Country Link
GB (1) GB803452A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997042400A1 (en) * 1996-05-06 1997-11-13 Innovative Technology, L.L.C. Method and apparatus for minimizing leakage in turbine seals
EP1391642A2 (en) 2002-08-23 2004-02-25 ROLLS-ROYCE plc Seals and a method of making seals

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997042400A1 (en) * 1996-05-06 1997-11-13 Innovative Technology, L.L.C. Method and apparatus for minimizing leakage in turbine seals
AU705280B2 (en) * 1996-05-06 1999-05-20 Turbo Parts, L.L.C. Method and apparatus for minimizing leakage in turbine seals
CN1075157C (en) * 1996-05-06 2001-11-21 创新技术有限责任公司 Method and apparatus for minimizing leakage in turbine seals
EP1391642A2 (en) 2002-08-23 2004-02-25 ROLLS-ROYCE plc Seals and a method of making seals
EP1391642A3 (en) * 2002-08-23 2004-03-10 ROLLS-ROYCE plc Seals and a method of making seals

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