FR2429914A1 - Joint d'etancheite de tete d'aube pour une machine rotative a flux axial - Google Patents

Joint d'etancheite de tete d'aube pour une machine rotative a flux axial

Info

Publication number
FR2429914A1
FR2429914A1 FR7916468A FR7916468A FR2429914A1 FR 2429914 A1 FR2429914 A1 FR 2429914A1 FR 7916468 A FR7916468 A FR 7916468A FR 7916468 A FR7916468 A FR 7916468A FR 2429914 A1 FR2429914 A1 FR 2429914A1
Authority
FR
France
Prior art keywords
axial flow
rotary machine
flow rotary
blade head
head gasket
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Withdrawn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
FR7916468A
Other languages
English (en)
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.)
RTX Corp
Original Assignee
United Technologies Corp
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 United Technologies Corp filed Critical United Technologies Corp
Publication of FR2429914A1 publication Critical patent/FR2429914A1/fr
Withdrawn legal-status Critical Current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
    • F01D11/08—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/16—Sealings between pressure and suction sides
    • F04D29/161—Sealings between pressure and suction sides especially adapted for elastic fluid pumps
    • F04D29/164—Sealings between pressure and suction sides especially adapted for elastic fluid pumps of an axial flow wheel

Landscapes

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

Abstract

L'invention concerne un joint d'étanchéité de tête d'aube pour une machine rotative à flux axial. Le compresseur 10 d'une machine à flux axial comprend plusieurs aubes mobiles 26 s'étendant radialement en alignement avec et jusqu'à proximité de la paroi extérieure 18 du parcours d'écoulement 16 du milieu de travail dans les conditions opératoires prévues. Une gorge circonférentielle 36 pratiquée dans un plat d'étanchéité 34 circonscrivant les têtes 28 des aubes 26 permet une dilatation thermique relative entre ces têtes 28 et la paroi extérieure 18 dans des conditions transitoires. L'invention est utilisée pour réduire les fuites de fluide de travail et améliorer le rendement aérodynamique du compresseur d'une machine rotative à flux axial.
FR7916468A 1978-06-26 1979-06-26 Joint d'etancheite de tete d'aube pour une machine rotative a flux axial Withdrawn FR2429914A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/919,185 US4238170A (en) 1978-06-26 1978-06-26 Blade tip seal for an axial flow rotary machine

Publications (1)

Publication Number Publication Date
FR2429914A1 true FR2429914A1 (fr) 1980-01-25

Family

ID=25441662

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7916468A Withdrawn FR2429914A1 (fr) 1978-06-26 1979-06-26 Joint d'etancheite de tete d'aube pour une machine rotative a flux axial

Country Status (5)

Country Link
US (1) US4238170A (fr)
JP (1) JPS557998A (fr)
DE (1) DE2924335A1 (fr)
FR (1) FR2429914A1 (fr)
GB (1) GB2026609B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2595759A1 (fr) * 1986-01-10 1987-09-18 Gen Electric Anneau et segment d'anneau formant bouclier pour la maitrise du jeu aux extremites superieures des aubes d'un rotor de turbine

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4339227A (en) * 1980-05-09 1982-07-13 Rockwell International Corporation Inducer tip clearance and tip contour
US4606699A (en) * 1984-02-06 1986-08-19 General Electric Company Compressor casing recess
US4645417A (en) * 1984-02-06 1987-02-24 General Electric Company Compressor casing recess
GB2158879B (en) * 1984-05-19 1987-09-03 Rolls Royce Preventing surge in an axial flow compressor
US4738586A (en) * 1985-03-11 1988-04-19 United Technologies Corporation Compressor blade tip seal
US4884820A (en) * 1987-05-19 1989-12-05 Union Carbide Corporation Wear resistant, abrasive laser-engraved ceramic or metallic carbide surfaces for rotary labyrinth seal members
US5197853A (en) * 1991-08-28 1993-03-30 General Electric Company Airtight shroud support rail and method for assembling in turbine engine
US5562404A (en) * 1994-12-23 1996-10-08 United Technologies Corporation Vaned passage hub treatment for cantilever stator vanes
US6231301B1 (en) 1998-12-10 2001-05-15 United Technologies Corporation Casing treatment for a fluid compressor
EP2097313B1 (fr) * 2006-12-28 2014-07-23 Carrier Corporation Conception de carter de ventilateur axial avec coins périphériquement espacés
US8568095B2 (en) * 2006-12-29 2013-10-29 Carrier Corporation Reduced tip clearance losses in axial flow fans
US8038388B2 (en) * 2007-03-05 2011-10-18 United Technologies Corporation Abradable component for a gas turbine engine
US8727712B2 (en) 2010-09-14 2014-05-20 United Technologies Corporation Abradable coating with safety fuse
US9169740B2 (en) 2010-10-25 2015-10-27 United Technologies Corporation Friable ceramic rotor shaft abrasive coating
US8790078B2 (en) 2010-10-25 2014-07-29 United Technologies Corporation Abrasive rotor shaft ceramic coating
US8770927B2 (en) 2010-10-25 2014-07-08 United Technologies Corporation Abrasive cutter formed by thermal spray and post treatment
US8936432B2 (en) 2010-10-25 2015-01-20 United Technologies Corporation Low density abradable coating with fine porosity
US8770926B2 (en) 2010-10-25 2014-07-08 United Technologies Corporation Rough dense ceramic sealing surface in turbomachines
US20130089421A1 (en) * 2011-10-05 2013-04-11 Jeffrey Howard Nussbaum Gas turbine engine airfoil tip recesses
CN102817873B (zh) * 2012-08-10 2015-07-15 势加透博（北京）科技有限公司 航空发动机压气机的梯状间隙结构
US10550699B2 (en) 2013-03-06 2020-02-04 United Technologies Corporation Pretrenched rotor for gas turbine engine
WO2014197044A2 (fr) 2013-03-12 2014-12-11 United Technologies Corporation Ensemble de montage d'usinage d'extrémité d'aube
ES2570969T3 (es) * 2013-07-12 2016-05-23 MTU Aero Engines AG Grado de turbina de gas
EP3177811B1 (fr) * 2014-08-08 2021-07-21 Siemens Energy Global GmbH & Co. KG Compresseur d'une turbine à gaz
US10036263B2 (en) 2014-10-22 2018-07-31 United Technologies Corporation Stator assembly with pad interface for a gas turbine engine
EP3088672A1 (fr) * 2015-04-27 2016-11-02 Siemens Aktiengesellschaft Procédé de conception d'un moteur à écoulement de fluide et moteur à écoulement de fluide
US11248622B2 (en) * 2016-09-02 2022-02-15 Raytheon Technologies Corporation Repeating airfoil tip strong pressure profile
US10415591B2 (en) * 2016-09-21 2019-09-17 United Technologies Corporation Gas turbine engine airfoil
US10883373B2 (en) 2017-03-02 2021-01-05 Rolls-Royce Corporation Blade tip seal
US20200248560A1 (en) * 2019-02-05 2020-08-06 United Technologies Corporation Tandem fan for boundary layer ingestion systems
CN112360816A (zh) * 2020-12-08 2021-02-12 成都成发科能动力工程有限公司 一种轴流压缩机承缸和应用其的轴流压缩机

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH52778A (de) * 1910-07-28 1912-01-02 Oerlikon Maschf Axialrad mit nachgeschaltetem Diffusor zur Förderung von flüssigem oder gasförmigem Fluidum
GB189457A (en) * 1921-11-26 1923-03-01 Bbc Brown Boveri & Cie Improvements in multi-stage impulse turbines for steam or gas
FR1348186A (fr) * 1963-02-19 1964-01-04 Hélice carénée
CH414681A (de) * 1964-11-24 1966-06-15 Bbc Brown Boveri & Cie Strömungsmaschine
DE1953710A1 (de) * 1968-10-28 1970-04-30 Elin Union Ag Erosionsschutz fuer die Beschaufelung von Gasturbinen,insbesondere Abgasturbinen
US3680977A (en) * 1969-07-01 1972-08-01 Denis Rabouyt Framed impeller
US3934410A (en) * 1972-09-15 1976-01-27 The United States Of America As Represented By The Secretary Of The Navy Quiet shrouded circulation control propeller

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US591822A (en) * 1897-10-19 curtis
US1141473A (en) * 1915-06-01 Wm Cramp & Sons Ship & Engine Building Company Steam-turbine.
US2435236A (en) * 1943-11-23 1948-02-03 Westinghouse Electric Corp Superacoustic compressor
US2847941A (en) * 1953-11-02 1958-08-19 William M Jackson Axial flow pumps
FR1155958A (fr) * 1956-03-28 1958-05-12 Perfectionnements aux turbines à fluide compressible

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH52778A (de) * 1910-07-28 1912-01-02 Oerlikon Maschf Axialrad mit nachgeschaltetem Diffusor zur Förderung von flüssigem oder gasförmigem Fluidum
GB189457A (en) * 1921-11-26 1923-03-01 Bbc Brown Boveri & Cie Improvements in multi-stage impulse turbines for steam or gas
FR1348186A (fr) * 1963-02-19 1964-01-04 Hélice carénée
CH414681A (de) * 1964-11-24 1966-06-15 Bbc Brown Boveri & Cie Strömungsmaschine
DE1953710A1 (de) * 1968-10-28 1970-04-30 Elin Union Ag Erosionsschutz fuer die Beschaufelung von Gasturbinen,insbesondere Abgasturbinen
US3680977A (en) * 1969-07-01 1972-08-01 Denis Rabouyt Framed impeller
US3934410A (en) * 1972-09-15 1976-01-27 The United States Of America As Represented By The Secretary Of The Navy Quiet shrouded circulation control propeller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2595759A1 (fr) * 1986-01-10 1987-09-18 Gen Electric Anneau et segment d'anneau formant bouclier pour la maitrise du jeu aux extremites superieures des aubes d'un rotor de turbine

Also Published As

Publication number Publication date
GB2026609B (en) 1982-06-09
DE2924335A1 (de) 1980-01-10
US4238170A (en) 1980-12-09
GB2026609A (en) 1980-02-06
JPS557998A (en) 1980-01-21

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Legal Events

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