EP0536045A1 - Verstellhebel für eine Statorschaufel - Google Patents

Verstellhebel für eine Statorschaufel Download PDF

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Publication number
EP0536045A1
EP0536045A1 EP92402678A EP92402678A EP0536045A1 EP 0536045 A1 EP0536045 A1 EP 0536045A1 EP 92402678 A EP92402678 A EP 92402678A EP 92402678 A EP92402678 A EP 92402678A EP 0536045 A1 EP0536045 A1 EP 0536045A1
Authority
EP
European Patent Office
Prior art keywords
link
blade
axis
rods
projection
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
EP92402678A
Other languages
English (en)
French (fr)
Other versions
EP0536045B1 (de
Inventor
Jacky Naudet
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.)
Safran Aircraft Engines SAS
Original Assignee
Societe Nationale dEtude et de Construction de Moteurs dAviation SNECMA
SNECMA SAS
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 Societe Nationale dEtude et de Construction de Moteurs dAviation SNECMA, SNECMA SAS filed Critical Societe Nationale dEtude et de Construction de Moteurs dAviation SNECMA
Publication of EP0536045A1 publication Critical patent/EP0536045A1/de
Application granted granted Critical
Publication of EP0536045B1 publication Critical patent/EP0536045B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • F04D29/40—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

Definitions

  • the invention relates to a blade control rod as well as to networks of such rods.
  • French patent 2,583,817 shows that thought has already been given to placing the rods close to one another and with straight side edges and separated by a fairly small clearance, so that if a rod is broken, the pivoting of the associated blade is interrupted fairly quickly by the contact of the rod end which is integral with it on the neighboring rods. The dawn then makes an angle little different from that of the others and hardly affects the performance of the machine. The control of the ring is not disturbed, because the intact links in contact with the end of the broken link can turn it by pushing it back.
  • the invention also relates to networks of control rods meeting these characteristics.
  • each end 14 is pierced with an oblong eye 19 and with straight lateral edges 20 oriented along the length of the link 13.
  • the rods 13 can slide longitudinally around the ends of the axis 7 as a function of the movements of the control ring 18.
  • the ends of the axes 7 are provided with flats which slide on the straight lateral edges 20 and ensure the pivoting transmission to the vanes 5.
  • the plates 21 and 22 can be in one piece or assembled by welding along line 27.
  • FIGS. 3 and 4 Another network of rods referenced here 28 and 29 has been shown in FIGS. 3 and 4. Here they are of two different kinds, but their ends 14 are all formed of three superimposed plates: the rods 28 have their ends 14 composed of 'a narrow middle plate 30 between two wide upper and lower plates 31 and 32 which therefore protrude over and under the narrow middle plate 30 on both sides and forming two receiving recesses, while the ends 14 of the links 29 consist of a wide middle plate 33 disposed between two narrow upper and lower plates 34 and 35.
  • the wide middle plate 33 extends, projecting from both sides on the narrow upper and lower plates 34 and 35, between portions of the upper and lower plates 31 and 32 of each of the two neighboring links 28.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Control Of Turbines (AREA)
EP92402678A 1991-10-02 1992-09-30 Verstellhebel für eine Statorschaufel Expired - Lifetime EP0536045B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9112102 1991-10-02
FR9112102A FR2682157B1 (fr) 1991-10-02 1991-10-02 Biellette de commande d'aube et reseau de telles biellettes.

Publications (2)

Publication Number Publication Date
EP0536045A1 true EP0536045A1 (de) 1993-04-07
EP0536045B1 EP0536045B1 (de) 1994-08-03

Family

ID=9417499

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92402678A Expired - Lifetime EP0536045B1 (de) 1991-10-02 1992-09-30 Verstellhebel für eine Statorschaufel

Country Status (4)

Country Link
US (1) US5277544A (de)
EP (1) EP0536045B1 (de)
DE (1) DE69200303T2 (de)
FR (1) FR2682157B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2296049A (en) * 1994-12-15 1996-06-19 Gen Electric Variable stator vane
US5630701A (en) * 1995-06-05 1997-05-20 Rolls-Royce Plc Variable angle vane arrays
CN102373965A (zh) * 2011-11-24 2012-03-14 成都发动机（集团）有限公司 高温高尘含量烟气轮机可调式静叶组件
FR3108370A1 (fr) * 2020-03-18 2021-09-24 Safran Aircraft Engines Etage d’aubes a calage variable pour une turbomachine

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5593275A (en) * 1995-08-01 1997-01-14 General Electric Company Variable stator vane mounting and vane actuation system for an axial flow compressor of a gas turbine engine
US6210106B1 (en) * 1999-04-30 2001-04-03 General Electric Company Seal apparatus for gas turbine engine variable vane
DE102006024085B4 (de) * 2006-05-23 2020-04-16 MTU Aero Engines AG Turboverdichter in Axialbauweise
US8517661B2 (en) * 2007-01-22 2013-08-27 General Electric Company Variable vane assembly for a gas turbine engine having an incrementally rotatable bushing
WO2008124758A1 (en) * 2007-04-10 2008-10-16 Elliott Company Centrifugal compressor having adjustable inlet guide vanes
US8240983B2 (en) * 2007-10-22 2012-08-14 United Technologies Corp. Gas turbine engine systems involving gear-driven variable vanes
FR3004255B1 (fr) * 2013-04-04 2015-10-23 Snecma Dispositif d'essai d'une biellette de calage d'une aube de stator
EP2806107B1 (de) * 2013-05-22 2017-08-09 MTU Aero Engines AG Geteilter Innenring
US9546559B2 (en) * 2013-10-08 2017-01-17 General Electric Company Lock link mechanism for turbine vanes
US10352186B2 (en) * 2016-01-22 2019-07-16 United Technologies Corporation Variable vane stabilizer
DE102016204291A1 (de) * 2016-03-16 2017-09-21 MTU Aero Engines AG Leitschaufelteller mit einem angefasten und einem zylindrischen Randbereich
US10526911B2 (en) * 2017-06-22 2020-01-07 United Technologies Corporation Split synchronization ring for variable vane assembly
US20210254557A1 (en) * 2020-02-13 2021-08-19 Honeywell International Inc. Variable vane system for turbomachine with linkage having tapered receiving aperture for unison ring pin
US11572794B2 (en) 2021-01-07 2023-02-07 General Electric Company Inner shroud damper for vibration reduction
US11608747B2 (en) 2021-01-07 2023-03-21 General Electric Company Split shroud for vibration reduction

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2835349B1 (de) * 1978-08-11 1979-04-26 Motoren Turbinen Union Verstelleitgitter fuer hochbelastete Verdichter,insbesondere von Gasturbinentriebwerken
FR2583817A1 (fr) * 1985-06-20 1986-12-26 Snecma Biellette de commande d'aube a calage variable de stator de compresseur de turbomachine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2646467A1 (fr) * 1989-04-26 1990-11-02 Snecma Aube de stator a calage variable a coupelle rapportee

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2835349B1 (de) * 1978-08-11 1979-04-26 Motoren Turbinen Union Verstelleitgitter fuer hochbelastete Verdichter,insbesondere von Gasturbinentriebwerken
FR2583817A1 (fr) * 1985-06-20 1986-12-26 Snecma Biellette de commande d'aube a calage variable de stator de compresseur de turbomachine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2296049A (en) * 1994-12-15 1996-06-19 Gen Electric Variable stator vane
GB2296049B (en) * 1994-12-15 1998-12-02 Gen Electric Stator vane
US5630701A (en) * 1995-06-05 1997-05-20 Rolls-Royce Plc Variable angle vane arrays
CN102373965A (zh) * 2011-11-24 2012-03-14 成都发动机（集团）有限公司 高温高尘含量烟气轮机可调式静叶组件
CN102373965B (zh) * 2011-11-24 2015-12-02 成都发动机（集团）有限公司 高温高尘含量烟气轮机可调式静叶组件
FR3108370A1 (fr) * 2020-03-18 2021-09-24 Safran Aircraft Engines Etage d’aubes a calage variable pour une turbomachine

Also Published As

Publication number Publication date
DE69200303D1 (de) 1994-09-08
FR2682157A1 (fr) 1993-04-09
EP0536045B1 (de) 1994-08-03
DE69200303T2 (de) 1995-01-19
US5277544A (en) 1994-01-11
FR2682157B1 (fr) 1995-01-20

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