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GB1020900A - A seal between the rotor blades and the casing of axial-flow turbo-machines - Google Patents

A seal between the rotor blades and the casing of axial-flow turbo-machines

Info

Publication number
GB1020900A
GB1020900A GB44970/62A GB4497062A GB1020900A GB 1020900 A GB1020900 A GB 1020900A GB 44970/62 A GB44970/62 A GB 44970/62A GB 4497062 A GB4497062 A GB 4497062A GB 1020900 A GB1020900 A GB 1020900A
Authority
GB
United Kingdom
Prior art keywords
segments
axial
rotor blades
segment
casing
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
GB44970/62A
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of GB1020900A publication Critical patent/GB1020900A/en
Expired 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
    • F16J15/44—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
    • 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

Landscapes

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

Abstract

1,020,900. Turbines; axial-flow compressors. LICENTIA PATENT-VERWALTUNGSG.m.b.H. Nov. 28, 1962 [Nov. 28, 1961], No. 44970/62. Headings F1C and F1T. A fluid seal between the rotor blades and the casing of an axial-flow turbine or compressor, comprises an annular series of segments 10 surrounding the rotor blades. The segments are radially resiliently supported as by leaf springs 12 restrained against circumferential displacement relative to the segments by pins (not shown). The segments are coupled to one another at their adjacent edges by tongues 15 and grooves 16, 17 extending substantially tangentially to permit relative circumferential displacement of the segments while transmitting radial movements of a segment to an adjacent segment or segments. Each tongue may be formed on one edge of a segment and engage a groove in the facing edge on the adjacent segment. The tongues are substantially of the same length as the segments in the axial direction.
GB44970/62A 1961-11-28 1962-11-28 A seal between the rotor blades and the casing of axial-flow turbo-machines Expired GB1020900A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL0040574 1961-11-28

Publications (1)

Publication Number Publication Date
GB1020900A true GB1020900A (en) 1966-02-23

Family

ID=7269104

Family Applications (1)

Application Number Title Priority Date Filing Date
GB44970/62A Expired GB1020900A (en) 1961-11-28 1962-11-28 A seal between the rotor blades and the casing of axial-flow turbo-machines

Country Status (3)

Country Link
CH (1) CH397360A (en)
FR (1) FR1339482A (en)
GB (1) GB1020900A (en)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3391904A (en) * 1966-11-02 1968-07-09 United Aircraft Corp Optimum response tip seal
US3519366A (en) * 1968-05-22 1970-07-07 Westinghouse Electric Corp Turbine diaphragm seal structure
US3529906A (en) * 1968-10-30 1970-09-22 Westinghouse Electric Corp Static seal structure
US3594010A (en) * 1968-07-19 1971-07-20 English Electric Co Ltd Shaft seal for turbines
US3656862A (en) * 1970-07-02 1972-04-18 Westinghouse Electric Corp Segmented seal assembly
US3938906A (en) * 1974-10-07 1976-02-17 Westinghouse Electric Corporation Slidable stator seal
FR2465874A1 (en) * 1979-06-30 1981-03-27 Rolls Royce GAS-TIGHT GASKET FOR TURBINE OF GAS TURBINE ENGINE
WO1982003657A1 (en) * 1981-04-10 1982-10-28 Davis Warren W A floating expansion control ring
US4643636A (en) * 1985-07-22 1987-02-17 Avco Corporation Ceramic nozzle assembly for gas turbine engine
US4732534A (en) * 1985-10-02 1988-03-22 Mtu Motoren-Und Turbinen-Union Muenchen Gmbh Rotor blade jacket for axial gas turbines
US4909706A (en) * 1987-01-28 1990-03-20 Union Carbide Corporation Controlled clearance labyrinth seal
US5017088A (en) * 1988-12-21 1991-05-21 Societe Nationale D'etude Et De Construction De Moteurs D'aviation"S.N.E.C.M.A." Gas turbine engine compressor casing with internal diameter control
GB2239678A (en) * 1989-12-08 1991-07-10 Rolls Royce Plc Gas turbine engine shroud assembly
US5328328A (en) * 1992-05-27 1994-07-12 Societe Nationale D'etude Et De Construction De Moteurs D'aviation "Snecma" Sealing device between blade stages and a rotary drum, particularly for preventing leaks around the stages of straightener blades
US5456576A (en) * 1994-08-31 1995-10-10 United Technologies Corporation Dynamic control of tip clearance
US5685693A (en) * 1995-03-31 1997-11-11 General Electric Co. Removable inner turbine shell with bucket tip clearance control
EP0979962A2 (en) * 1998-08-10 2000-02-16 General Electric Company Seal assembly and rotary machine containing such seal assembly
US6142731A (en) * 1997-07-21 2000-11-07 Caterpillar Inc. Low thermal expansion seal ring support
US6382905B1 (en) * 2000-04-28 2002-05-07 General Electric Company Fan casing liner support
GB2418955A (en) * 2004-07-09 2006-04-12 United Technologies Corp Blade tip clearance control

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3860358A (en) * 1974-04-18 1975-01-14 United Aircraft Corp Turbine blade tip seal
DE2931766C2 (en) * 1979-08-04 1982-08-05 MTU Motoren- und Turbinen-Union München GmbH, 8000 München Sealing device for the free blade ends of an adjustable diffuser of a gas turbine
GB2063385B (en) * 1979-11-23 1983-06-22 Cross Mfg Co 1938 Ltd Gas seals
GB2115487B (en) * 1982-02-19 1986-02-05 Gen Electric Double wall compressor casing
FR2711730B1 (en) * 1993-10-27 1995-12-01 Snecma Turbomachine equipped with means for controlling the clearances between rotor and stator.

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3391904A (en) * 1966-11-02 1968-07-09 United Aircraft Corp Optimum response tip seal
US3519366A (en) * 1968-05-22 1970-07-07 Westinghouse Electric Corp Turbine diaphragm seal structure
US3594010A (en) * 1968-07-19 1971-07-20 English Electric Co Ltd Shaft seal for turbines
US3529906A (en) * 1968-10-30 1970-09-22 Westinghouse Electric Corp Static seal structure
US3656862A (en) * 1970-07-02 1972-04-18 Westinghouse Electric Corp Segmented seal assembly
US3938906A (en) * 1974-10-07 1976-02-17 Westinghouse Electric Corporation Slidable stator seal
FR2465874A1 (en) * 1979-06-30 1981-03-27 Rolls Royce GAS-TIGHT GASKET FOR TURBINE OF GAS TURBINE ENGINE
WO1982003657A1 (en) * 1981-04-10 1982-10-28 Davis Warren W A floating expansion control ring
US4643636A (en) * 1985-07-22 1987-02-17 Avco Corporation Ceramic nozzle assembly for gas turbine engine
US4732534A (en) * 1985-10-02 1988-03-22 Mtu Motoren-Und Turbinen-Union Muenchen Gmbh Rotor blade jacket for axial gas turbines
US4909706A (en) * 1987-01-28 1990-03-20 Union Carbide Corporation Controlled clearance labyrinth seal
US5017088A (en) * 1988-12-21 1991-05-21 Societe Nationale D'etude Et De Construction De Moteurs D'aviation"S.N.E.C.M.A." Gas turbine engine compressor casing with internal diameter control
GB2239678A (en) * 1989-12-08 1991-07-10 Rolls Royce Plc Gas turbine engine shroud assembly
GB2239678B (en) * 1989-12-08 1993-03-03 Rolls Royce Plc Gas turbine engine blade shroud assembly
US5328328A (en) * 1992-05-27 1994-07-12 Societe Nationale D'etude Et De Construction De Moteurs D'aviation "Snecma" Sealing device between blade stages and a rotary drum, particularly for preventing leaks around the stages of straightener blades
US5456576A (en) * 1994-08-31 1995-10-10 United Technologies Corporation Dynamic control of tip clearance
WO1996007018A1 (en) * 1994-08-31 1996-03-07 United Technologies Corporation Dynamic control of tip clearance
US6082963A (en) * 1995-03-31 2000-07-04 General Electric Co. Removable inner turbine shell with bucket tip clearance control
US5779442A (en) * 1995-03-31 1998-07-14 General Electric Company Removable inner turbine shell with bucket tip clearance control
US5906473A (en) * 1995-03-31 1999-05-25 General Electric Co. Removable inner turbine shell with bucket tip clearance control
US5913658A (en) * 1995-03-31 1999-06-22 General Electric Co. Removable inner turbine shell with bucket tip clearance control
US6079943A (en) * 1995-03-31 2000-06-27 General Electric Co. Removable inner turbine shell and bucket tip clearance control
US5685693A (en) * 1995-03-31 1997-11-11 General Electric Co. Removable inner turbine shell with bucket tip clearance control
US6142731A (en) * 1997-07-21 2000-11-07 Caterpillar Inc. Low thermal expansion seal ring support
EP0979962A3 (en) * 1998-08-10 2000-10-18 General Electric Company Seal assembly and rotary machine containing such seal assembly
EP0979962A2 (en) * 1998-08-10 2000-02-16 General Electric Company Seal assembly and rotary machine containing such seal assembly
US6382905B1 (en) * 2000-04-28 2002-05-07 General Electric Company Fan casing liner support
GB2361747B (en) * 2000-04-28 2004-10-27 Gen Electric Fan casing liner support
GB2418955A (en) * 2004-07-09 2006-04-12 United Technologies Corp Blade tip clearance control
GB2418955B (en) * 2004-07-09 2009-07-08 United Technologies Corp Blade clearance control
US7596954B2 (en) 2004-07-09 2009-10-06 United Technologies Corporation Blade clearance control

Also Published As

Publication number Publication date
FR1339482A (en) 1963-10-04
CH397360A (en) 1965-08-15

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