FR2402765A1 - Dispositif pour reduire les pertes par interstices qui se produisent avec des aubes directrices reglables de turbo-machines, notamment de propulseurs pour turbines a gaz - Google Patents

Dispositif pour reduire les pertes par interstices qui se produisent avec des aubes directrices reglables de turbo-machines, notamment de propulseurs pour turbines a gaz

Info

Publication number
FR2402765A1
FR2402765A1 FR7824444A FR7824444A FR2402765A1 FR 2402765 A1 FR2402765 A1 FR 2402765A1 FR 7824444 A FR7824444 A FR 7824444A FR 7824444 A FR7824444 A FR 7824444A FR 2402765 A1 FR2402765 A1 FR 2402765A1
Authority
FR
France
Prior art keywords
interstices
occur
gas turbine
blade
reducing losses
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.)
Granted
Application number
FR7824444A
Other languages
English (en)
Other versions
FR2402765B3 (fr
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.)
MTU Aero Engines GmbH
Original Assignee
MTU Motoren und Turbinen Union Muenchen 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 MTU Motoren und Turbinen Union Muenchen GmbH filed Critical MTU Motoren und Turbinen Union Muenchen GmbH
Publication of FR2402765A1 publication Critical patent/FR2402765A1/fr
Application granted granted Critical
Publication of FR2402765B3 publication Critical patent/FR2402765B3/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • 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
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/10—Final actuators
    • F01D17/12—Final actuators arranged in stator parts
    • F01D17/14—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
    • F01D17/16—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes
    • F01D17/162—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes for axial flow, i.e. the vanes turning around axes which are essentially perpendicular to the rotor centre line
    • 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
    • F04D29/083—Sealings especially adapted for elastic fluid pumps
    • 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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/56—Fluid-guiding means, e.g. diffusers adjustable
    • F04D29/563—Fluid-guiding means, e.g. diffusers adjustable specially adapted for elastic fluid pumps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49316—Impeller making
    • Y10T29/4932—Turbomachine making
    • Y10T29/49321—Assembling individual fluid flow interacting members, e.g., blades, vanes, buckets, on rotary support member

Landscapes

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

Abstract

a. Dispositif pour réduire les pertes par interstices qui se produisent avec des aubes directrices réglables de turbo-machines, notamment de propulseurs pour turbines à gaz. b. Dispositif caractérisé en ce que des rainures disposées dans la paroi extérieure du canal de circulation au-dessus d'une arête inférieure de pale d'aube, antérieure et/ou postérieure, sont remplies avec une garniture de roulement pour aube qui est souple, et à partir de laquelle, au moyen d'un outil ou simulateur d'aube, sont pratiquées des encoches se situant tout juste au-dessus du plan de pivotement des arêtes inférieures d'aubes considérées. c. L'invention trouve son application dans le domaine des turbines à gaz.
FR7824444A 1977-09-07 1978-08-23 Dispositif pour reduire les pertes par interstices qui se produisent avec des aubes directrices reglables de turbo-machines, notamment de propulseurs pour turbines a gaz Granted FR2402765A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2740192A DE2740192C2 (de) 1977-09-07 1977-09-07 Spaltdichtung für eine um ihre Längsachse verstellbare, axial umströmte Leitschaufel einer Strömungsmaschine

Publications (2)

Publication Number Publication Date
FR2402765A1 true FR2402765A1 (fr) 1979-04-06
FR2402765B3 FR2402765B3 (fr) 1981-04-30

Family

ID=6018274

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7824444A Granted FR2402765A1 (fr) 1977-09-07 1978-08-23 Dispositif pour reduire les pertes par interstices qui se produisent avec des aubes directrices reglables de turbo-machines, notamment de propulseurs pour turbines a gaz

Country Status (4)

Country Link
US (1) US4195964A (fr)
DE (1) DE2740192C2 (fr)
FR (1) FR2402765A1 (fr)
GB (1) GB2003984B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021224558A1 (fr) * 2020-05-06 2021-11-11 Safran Helicopter Engines Compresseur de turbomachine comportant une paroi fixe pourvue d'un traitement de forme

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2835349C2 (de) * 1978-08-11 1979-12-20 Mtu Motoren- Und Turbinen-Union Muenchen Gmbh, 8000 Muenchen Verstelleitgitter für hochbelastete Verdichter, insbesondere von Gasturbinentriebwerken
US4307994A (en) * 1979-10-15 1981-12-29 General Motors Corporation Variable vane position adjuster
FR2646467A1 (fr) * 1989-04-26 1990-11-02 Snecma Aube de stator a calage variable a coupelle rapportee
DE10016745B4 (de) 2000-04-04 2005-05-19 Man B & W Diesel Ag Axialströmungsmaschine mit einem eine Reihe von verstellbaren Leitschaufeln umfassenden Leitapparat
US6409471B1 (en) 2001-02-16 2002-06-25 General Electric Company Shroud assembly and method of machining same
US8033782B2 (en) * 2008-01-16 2011-10-11 Elliott Company Method to prevent brinelling wear of slot and pin assembly
US9638212B2 (en) * 2013-12-19 2017-05-02 Pratt & Whitney Canada Corp. Compressor variable vane assembly
US20170044927A1 (en) * 2014-04-30 2017-02-16 Borgwarner Inc. Lock-up prevention vane for variable geometry turbocharger
US20160010488A1 (en) * 2014-07-08 2016-01-14 MTU Aero Engines AG Wear protection arrangement for a turbomachine, process and compressor
BE1024523B1 (fr) * 2016-08-30 2018-03-29 Safran Aero Boosters S.A. Stator a aubes ajustables pour compresseur de turbomachine axiale

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL67182C (fr) *
US1478053A (en) * 1923-12-18 Guide vane eor hydraulic turbines
US1817654A (en) * 1930-08-27 1931-08-04 Newport News S & D Co Adjustable seal for hydraulic turbine gates and the like
GB578034A (en) * 1944-08-10 1946-06-12 William Warren Triggs Improvements in and relating to hydraulic turbines applicable also to centrifugal pumps
GB1049080A (en) * 1963-12-02 1966-11-23 Gen Electric Improvements in adjustable stator vanes
US3547455A (en) * 1969-05-02 1970-12-15 Gen Electric Rotary seal including organic abradable material
GB1276720A (en) * 1969-12-19 1972-06-07 English Electric Co Ltd Drives to adjustable stator blades for turbomachinery
US3788763A (en) * 1972-11-01 1974-01-29 Gen Motors Corp Variable vanes
US3995971A (en) * 1975-06-02 1976-12-07 United Technologies Corporation Rotatable vane seal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021224558A1 (fr) * 2020-05-06 2021-11-11 Safran Helicopter Engines Compresseur de turbomachine comportant une paroi fixe pourvue d'un traitement de forme
FR3109959A1 (fr) * 2020-05-06 2021-11-12 Safran Helicopter Engines Compresseur de turbomachine comportant une paroi fixe pourvue d’un traitement de forme

Also Published As

Publication number Publication date
FR2402765B3 (fr) 1981-04-30
DE2740192A1 (de) 1979-03-08
DE2740192C2 (de) 1981-11-12
US4195964A (en) 1980-04-01
GB2003984A (en) 1979-03-21
GB2003984B (en) 1982-02-10

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Legal Events

Date Code Title Description
ST Notification of lapse