GB895467A - Improvements in labyrinth seals - Google Patents

Improvements in labyrinth seals

Info

Publication number
GB895467A
GB895467A GB2639959A GB2639959A GB895467A GB 895467 A GB895467 A GB 895467A GB 2639959 A GB2639959 A GB 2639959A GB 2639959 A GB2639959 A GB 2639959A GB 895467 A GB895467 A GB 895467A
Authority
GB
United Kingdom
Prior art keywords
compressor
parts
gap
seals
produce
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
GB2639959A
Inventor
Frederick William Walto Morley
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 GB2639959A priority Critical patent/GB895467A/en
Publication of GB895467A publication Critical patent/GB895467A/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
    • 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

Landscapes

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

Abstract

895,467. Axial-flow compressors; turbines; labyrinth packing. ROLLS-ROYCE Ltd. July 8, 1960 [July 31, 1959], No. 26399/59. Classes 110 (1), 110 (3) and 122 (5). In a gas turbine including an axial flow compressor 11 air bled from the compressor to act at 2 on the compressor rotor 1 and reduce the end thrust on the rotor bearing 3 passes through two labyrinth seals in succession, the parts of the seals being so arranged that conditions, such as rapid turbine acceleration, which produce an increase in the gap clearance of one seal will also produce a corresponding decrease in the gap clearance of the other seal. The seals are formed by radially inwardly and radially outwardly directed ribs 7 and 9 on a part 5 secured to the compressor outlet easing 16 co-operating respectively with ribs on parts 4 and 6 attached to the compressor rotor. Any tendency of the part 5 to " grow " under rapid acceleration and increase the gap between parts 4 and 5 will produce a corresponding decrease in the gap between parts 5 and 6 and thus maintain the air pressure at 2 substantially constant. Specification 622,369 is referred to.
GB2639959A 1959-07-31 1959-07-31 Improvements in labyrinth seals Expired GB895467A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2639959A GB895467A (en) 1959-07-31 1959-07-31 Improvements in labyrinth seals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2639959A GB895467A (en) 1959-07-31 1959-07-31 Improvements in labyrinth seals

Publications (1)

Publication Number Publication Date
GB895467A true GB895467A (en) 1962-05-02

Family

ID=10243035

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2639959A Expired GB895467A (en) 1959-07-31 1959-07-31 Improvements in labyrinth seals

Country Status (1)

Country Link
GB (1) GB895467A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3779486A (en) * 1970-09-26 1973-12-18 Great Britain & Northern Irela Gas turbine engines
GB2253442A (en) * 1991-03-02 1992-09-09 Rolls Royce Plc Multi-stage seal for an axial flow turbine
US6408608B1 (en) 1997-07-02 2002-06-25 Morgan Advanced Ceramics Limited Thread guiding wheels
US7241109B2 (en) 2004-06-04 2007-07-10 Rolls-Royce Plc Seal system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3779486A (en) * 1970-09-26 1973-12-18 Great Britain & Northern Irela Gas turbine engines
GB2253442A (en) * 1991-03-02 1992-09-09 Rolls Royce Plc Multi-stage seal for an axial flow turbine
US5205706A (en) * 1991-03-02 1993-04-27 Rolls-Royce Plc Axial flow turbine assembly and a multi-stage seal
GB2253442B (en) * 1991-03-02 1994-08-24 Rolls Royce Plc An axial flow turbine assembly
US6408608B1 (en) 1997-07-02 2002-06-25 Morgan Advanced Ceramics Limited Thread guiding wheels
US7241109B2 (en) 2004-06-04 2007-07-10 Rolls-Royce Plc Seal system

Similar Documents

Publication Publication Date Title
GB1310401A (en) Axial flow compressors
GB1277212A (en) A sealing device
GB1523668A (en) Turbomachinery stator assembly
GB1249279A (en) Improvements relating to pivotal guide vanes
GB1241358A (en) Static seal structure
GB1324790A (en) Gas turbine engine compressors
GB1242787A (en) Seal construction
GB1164201A (en) Shaft-Sealing Arrangements for Turbomachines having Gaseous Working-Medium Heated in a Nuclear Reactor
GB931904A (en) Fluid flow machine
GB885951A (en) Arrangement for withdrawing cooling air from the compressor of a turbine engine
GB826318A (en) Fairing structure for the rear bearing housing of a gas turbine engine
GB1335145A (en) Turbine casing for a gas turbine engine
GB1256486A (en)
GB895467A (en) Improvements in labyrinth seals
GB903792A (en) Blade and blade mounting assemblies for axial flow turbines, compressors or pumps
GB1045689A (en) Exhaust scroll for axial flow turbomachines, such as turbines and compressors
GB737473A (en) Turbines and like machines having adjustable guide blades
GB649792A (en) Improvements in or relating to seals for rotors of turbines and like fluid flow machines
GB1305431A (en)
GB965465A (en) Improvements relating to compressor thrust bearings
GB585331A (en) Improvements in or relating to internal-combustion turbines
GB956835A (en) A non-contact shaft seal for elastic-fluid turbines
GB1102649A (en) Improvements relating to gas-turbine rotors
GB1015121A (en) Improvements in or relating to fluid seals for rotary apparatus
GB776847A (en) Gas-cooled gas turbine