GB840573A - Labyrinth seals - Google Patents

Labyrinth seals

Info

Publication number
GB840573A
GB840573A GB193858A GB193858A GB840573A GB 840573 A GB840573 A GB 840573A GB 193858 A GB193858 A GB 193858A GB 193858 A GB193858 A GB 193858A GB 840573 A GB840573 A GB 840573A
Authority
GB
United Kingdom
Prior art keywords
annuli
spacers
metal
strip
jan
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
GB193858A
Inventor
Frederick William Walto Morley
Wilfred Henry Wilkinson
Charles Samuel Broad
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
Delaney Gallay Ltd
Original Assignee
Rolls Royce PLC
Delaney Gallay Ltd
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, Delaney Gallay Ltd filed Critical Rolls Royce PLC
Priority to GB193858A priority Critical patent/GB840573A/en
Publication of GB840573A publication Critical patent/GB840573A/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
    • F01D11/08—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator
    • F01D11/12—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator using a rubstrip, e.g. erodible. deformable or resiliently-biased part

Landscapes

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

Abstract

840,573. Making labyrinth seals. ROLLSROYCE Ltd., and DELANEY GALLAY Ltd. Jan. 20, 1959 [Jan. 20, 1958], No. 1938/58. Class 83 (2). [Also in Group XXVI] A labyrinth seal comprises a number of metal strip annuli 19 spaced by separate spacer pieces 21. In the embodiment shown in Fig. 2, the annuli 19 are of metal of, for example, <SP>6</SP>/ 1000 -inch thick and are separated by metal spacers 21 formed with a number of part-spherical dimples 22 and secured to adjacent annuli by spot-welds in a number of the dimples. The sealing portions 19b of the annuli extend beyond the spacers 21 and each annulus has a flange 20 at its outer periphery welded or brazed to a ring 23 and the assembly of annuli and spacers is clamped between rings 24 and 25. In modifications, the spacers are formed with radiallyextending corrugations which may be flat-sided or of sinusoidal form. The annuli may be made by forming a continuous strip of the metal to the desired cross-section by extruding, drawing or rolling and then winding the formed strip around a mandrel to provide a helically-coiled strip from which separate annuli may be cut.
GB193858A 1958-01-20 1958-01-20 Labyrinth seals Expired GB840573A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB193858A GB840573A (en) 1958-01-20 1958-01-20 Labyrinth seals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB193858A GB840573A (en) 1958-01-20 1958-01-20 Labyrinth seals

Publications (1)

Publication Number Publication Date
GB840573A true GB840573A (en) 1960-07-06

Family

ID=9730675

Family Applications (1)

Application Number Title Priority Date Filing Date
GB193858A Expired GB840573A (en) 1958-01-20 1958-01-20 Labyrinth seals

Country Status (1)

Country Link
GB (1) GB840573A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3720419A (en) * 1971-01-21 1973-03-13 Westinghouse Electric Corp Fabricated labyrinth seal structure
EP0017546A1 (en) * 1979-03-30 1980-10-15 Societe Nationale D'etude Et De Construction De Moteurs D'aviation, "S.N.E.C.M.A." Exchangeable support for the tipsealing layer in a turbofan housing
GB2128693A (en) * 1982-10-19 1984-05-02 Nuovo Pignone Spa Labyrinth seal
FR2660371A1 (en) * 1990-04-03 1991-10-04 Gen Electric INTER-FLOOR SEALING ARRANGEMENT FOR BLADES OF ROTOR BLADES TURNING IN A TURBINE ENGINE.
FR2832180A1 (en) * 2001-11-14 2003-05-16 Snecma Moteurs Abradable coating for inner surface of gas turbine engine has rows of cavities with walls at angle to radial plane
FR2963403A1 (en) * 2010-08-02 2012-02-03 Gen Electric JOINT TEETH FOR SEAL ASSEMBLY
CN104204416B (en) * 2012-03-21 2017-09-26 通用电器技术有限公司 Sealing strip and the method for designing sealing strip
US9777599B2 (en) 2013-10-15 2017-10-03 Rolls-Royce Plc Fan casing arrangement for a gas turbine engine and related method

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3720419A (en) * 1971-01-21 1973-03-13 Westinghouse Electric Corp Fabricated labyrinth seal structure
EP0017546A1 (en) * 1979-03-30 1980-10-15 Societe Nationale D'etude Et De Construction De Moteurs D'aviation, "S.N.E.C.M.A." Exchangeable support for the tipsealing layer in a turbofan housing
FR2452601A1 (en) * 1979-03-30 1980-10-24 Snecma REMOVABLE SEALING COVER FOR TURBOJET BLOWER HOUSING
GB2128693A (en) * 1982-10-19 1984-05-02 Nuovo Pignone Spa Labyrinth seal
FR2660371A1 (en) * 1990-04-03 1991-10-04 Gen Electric INTER-FLOOR SEALING ARRANGEMENT FOR BLADES OF ROTOR BLADES TURNING IN A TURBINE ENGINE.
FR2832180A1 (en) * 2001-11-14 2003-05-16 Snecma Moteurs Abradable coating for inner surface of gas turbine engine has rows of cavities with walls at angle to radial plane
EP1312761A1 (en) * 2001-11-14 2003-05-21 Snecma Moteurs Abradable layer for gas turbine shrouds
US6830428B2 (en) 2001-11-14 2004-12-14 Snecma Moteurs Abradable coating for gas turbine walls
FR2963403A1 (en) * 2010-08-02 2012-02-03 Gen Electric JOINT TEETH FOR SEAL ASSEMBLY
CN104204416B (en) * 2012-03-21 2017-09-26 通用电器技术有限公司 Sealing strip and the method for designing sealing strip
US9777599B2 (en) 2013-10-15 2017-10-03 Rolls-Royce Plc Fan casing arrangement for a gas turbine engine and related method

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