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FR2388181A1 - SEALING FOR ROTARY CONCENTRIC SHAFTS - Google Patents

SEALING FOR ROTARY CONCENTRIC SHAFTS

Info

Publication number
FR2388181A1
FR2388181A1 FR7810751A FR7810751A FR2388181A1 FR 2388181 A1 FR2388181 A1 FR 2388181A1 FR 7810751 A FR7810751 A FR 7810751A FR 7810751 A FR7810751 A FR 7810751A FR 2388181 A1 FR2388181 A1 FR 2388181A1
Authority
FR
France
Prior art keywords
shaft
sealing
concentric shafts
seal
oil
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Withdrawn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
FR7810751A
Other languages
French (fr)
Inventor
Robert George Edge
Arthur Albert Burrows
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
Publication of FR2388181A1 publication Critical patent/FR2388181A1/en
Withdrawn legal-status Critical Current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
    • 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

Landscapes

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

Abstract

L'invention concerne un joint d'étanchéité pour arbres rotatifs concentriques constitué par une bague élastique 21 (en forme d'anneau brisé en acier à ressort) montée dans une rainure annulaire 25, 26 ménagée sur, ou dans, la face latérale externe de l'arbre intérieur 19, et que la force centrifuge fait se dilater et pénétrer dans une rainure 27, remplie d'huile, creusée dans la face latérale interne de l'arbre extérieur 18. Ce joint convient spécialement à assurer l'étanchéité à l'huile et aux gaz comprimés entre les deux arbres concentriques d'un moteur à turbine à gaz.The invention relates to a seal for concentric rotating shafts consisting of an elastic ring 21 (in the form of a split ring made of spring steel) mounted in an annular groove 25, 26 formed on, or in, the outer side face of the shaft. the inner shaft 19, and which the centrifugal force causes to expand and penetrate into a groove 27, filled with oil, hollowed out in the inner side face of the outer shaft 18. This seal is especially suitable for sealing against water. oil and gas compressed between the two concentric shafts of a gas turbine engine.

FR7810751A 1977-04-20 1978-04-12 SEALING FOR ROTARY CONCENTRIC SHAFTS Withdrawn FR2388181A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB16319/77A GB1565018A (en) 1977-04-20 1977-04-20 Gas turbine seals

Publications (1)

Publication Number Publication Date
FR2388181A1 true FR2388181A1 (en) 1978-11-17

Family

ID=10075154

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7810751A Withdrawn FR2388181A1 (en) 1977-04-20 1978-04-12 SEALING FOR ROTARY CONCENTRIC SHAFTS

Country Status (5)

Country Link
JP (1) JPS53131353A (en)
DE (1) DE2816084A1 (en)
FR (1) FR2388181A1 (en)
GB (1) GB1565018A (en)
IT (1) IT1093981B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2470313A1 (en) * 1979-11-23 1981-05-29 Cross Mfg Co SEALING APPARATUS, DEVICE AND METHOD THEREOF
EP0246665A2 (en) * 1986-05-23 1987-11-25 Mtu Motoren- Und Turbinen-Union MàœNchen Gmbh Non-contact sealing
EP0369878B1 (en) * 1988-11-17 1992-06-10 Societe Nationale D'etude Et De Construction De Moteurs D'aviation "Snecma" Bearing-chamber comprising a deflection screen
FR2985762A1 (en) * 2012-01-16 2013-07-19 Snecma Sealing system for sealing enclosure between internal and external shafts of turboshaft engine against oil leakage, has segment whose thickened portion co-acts with supporting unit to radially maintain segment in position
FR3025555A1 (en) * 2014-09-09 2016-03-11 Snecma TURBINE DAWN AND TURBOMACHINE
EP3255251A1 (en) * 2016-05-27 2017-12-13 General Electric Company Intershaft sealing systems for gas turbine engines

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2465348A1 (en) * 1979-09-10 1981-03-20 Electricite De France SUPERCONDUCTING ROTOR WITH CONNECTION DEVICE BETWEEN THE COOLED INDUCER AND THE SHAFT, AND CONNECTING DEVICE FOR ROTOR
GB2256682B (en) * 1991-06-15 1995-04-26 Rolls Royce Plc A hydraulic seal and method of assembling the same
GB2264541A (en) * 1992-02-29 1993-09-01 Rolls Royce Plc Improved sealing ring for gas turbine engines
DE10057395A1 (en) * 2000-11-18 2002-05-23 Alstom Switzerland Ltd Sealing arrangement between components of a rotating assembly and method for producing a sealing connection
EP2006491A1 (en) * 2007-06-21 2008-12-24 Siemens Aktiengesellschaft Adaptable labyrinth seal
US8820752B2 (en) 2008-09-15 2014-09-02 Stein Seal Company Intershaft seal with centrifugal compensation
US8205891B2 (en) * 2008-09-15 2012-06-26 Stein Seal Company Intershaft seal assembly
US9004495B2 (en) 2008-09-15 2015-04-14 Stein Seal Company Segmented intershaft seal assembly
GB0914187D0 (en) 2009-08-14 2009-09-16 Rolls Royce Plc A sealing assembly
GB201013844D0 (en) 2010-08-19 2010-09-29 Rolls Royce Plc Intershaft seal
CN109707468B (en) * 2018-12-29 2022-03-15 中国科学院工程热物理研究所 Be applied to high-efficient structure of obturating between static machine casket
US11773741B2 (en) 2021-06-09 2023-10-03 General Electric Company Compliant shroud designs with variable stiffness
CN114754147A (en) * 2022-03-29 2022-07-15 江苏丰尚智能科技有限公司 A sealing device and conditioner
FR3151354A1 (en) * 2023-07-21 2025-01-24 Safran Aircraft Engines Centering device without shrinkage for centering rotor parts

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2470313A1 (en) * 1979-11-23 1981-05-29 Cross Mfg Co SEALING APPARATUS, DEVICE AND METHOD THEREOF
EP0246665A2 (en) * 1986-05-23 1987-11-25 Mtu Motoren- Und Turbinen-Union MàœNchen Gmbh Non-contact sealing
EP0246665A3 (en) * 1986-05-23 1989-03-15 Mtu Muenchen Gmbh Non-contact sealing
EP0369878B1 (en) * 1988-11-17 1992-06-10 Societe Nationale D'etude Et De Construction De Moteurs D'aviation "Snecma" Bearing-chamber comprising a deflection screen
FR2985762A1 (en) * 2012-01-16 2013-07-19 Snecma Sealing system for sealing enclosure between internal and external shafts of turboshaft engine against oil leakage, has segment whose thickened portion co-acts with supporting unit to radially maintain segment in position
FR3025555A1 (en) * 2014-09-09 2016-03-11 Snecma TURBINE DAWN AND TURBOMACHINE
EP3255251A1 (en) * 2016-05-27 2017-12-13 General Electric Company Intershaft sealing systems for gas turbine engines
US10598035B2 (en) 2016-05-27 2020-03-24 General Electric Company Intershaft sealing systems for gas turbine engines and methods for assembling the same

Also Published As

Publication number Publication date
IT7821732A0 (en) 1978-03-29
DE2816084A1 (en) 1978-10-26
JPS53131353A (en) 1978-11-16
GB1565018A (en) 1980-04-16
IT1093981B (en) 1985-07-26

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Legal Events

Date Code Title Description
ST Notification of lapse