EP3954875A3 - Leitschaufel, verdichterstufe, strömungsmaschine und verfahren zum betreiben einer strömungsmaschine - Google Patents

Leitschaufel, verdichterstufe, strömungsmaschine und verfahren zum betreiben einer strömungsmaschine Download PDF

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Publication number
EP3954875A3
EP3954875A3 EP21187375.7A EP21187375A EP3954875A3 EP 3954875 A3 EP3954875 A3 EP 3954875A3 EP 21187375 A EP21187375 A EP 21187375A EP 3954875 A3 EP3954875 A3 EP 3954875A3
Authority
EP
European Patent Office
Prior art keywords
section
airfoil
profile
turbomachine
guide vane
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
EP21187375.7A
Other languages
English (en)
French (fr)
Other versions
EP3954875A2 (de
EP3954875B1 (de
Inventor
Sergio Elorza Gomez
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 AG
Original Assignee
MTU Aero Engines AG
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 Aero Engines AG filed Critical MTU Aero Engines AG
Publication of EP3954875A2 publication Critical patent/EP3954875A2/de
Publication of EP3954875A3 publication Critical patent/EP3954875A3/de
Application granted granted Critical
Publication of EP3954875B1 publication Critical patent/EP3954875B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F04D19/00—Axial-flow pumps
    • F04D19/02—Multi-stage pumps
    • F04D19/022—Multi-stage pumps with concentric rows of vanes
    • 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
    • F01D17/165—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of nozzle vanes for radial flow, i.e. the vanes turning around axes which are essentially parallel 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
    • F04D29/541—Specially adapted for elastic fluid pumps
    • F04D29/542—Bladed diffusers
    • F04D29/544—Blade shapes
    • 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

Landscapes

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

Abstract

Die vorliegende Erfindung betrifft eine Leitschaufel, insbesondere Austrittsleitschaufel und/oder für eine Verdichterstufe einer Gasturbine, wobei die Schaufel ein Schaufelblatt mit einem ersten Schaufelblattabschnitt (10) und einem zweiten Schaufelblattabschnitt (20) aufweist und der erste Schaufelblattabschnitt relativ zu dem zweiten Schaufelblattabschnitt um eine Drehachse (D) reversibel von einer ersten Stellung in eine zweite Stellung drehbar ist, wobei in wenigstens einem Profilschnitt des Schaufelblatts die Drehachse außerhalb eines Profils (11) des ersten Schaufelblattabschnitts angeordnet ist und/oder ein Profil des ersten Schaufelblattabschnitts eine Saugseite (12) mit einem ersten (12A) und einem, insbesondere daran anschließenden, zweiten Konturabschnitt (12B) und ein Profil (21) des zweiten Schaufelblattabschnitts einen druckseitigen Konturabschnitt (21A), den in der ersten Stellung der erste Konturabschnitt und in der zweiten Stellung stattdessen der zweite Konturabschnitt in Umfangsrichtung überdeckt, aufweisen und/oder ein Profil des zweiten Schaufelblattabschnitts in wenigstens einem Punkt (P2) in einem stromaufwärtigsten Zehntel seiner Saugseite eine saugseitige Tangente (T2) und ein Profil des ersten Schaufelblattabschnitts in einem diesem Punkt in der ersten oder zweiten Stellung nächstgelegenen Punkt eine Tangente (Tl) aufweisen, die miteinander einen Winkel (α) von wenigstens 20° bilden, und/oder wobei der erste Schaufelblattabschnitt von dem zweiten Schaufelblattabschnitt durch einen Spalt (S) getrennt und an wenigstens einer um die Drehachse drehbaren Plattform (40) angeordnet ist.
EP21187375.7A 2020-08-04 2021-07-23 Leitschaufel, verdichterstuf für eine gasturbine, strömungsmaschine und verfahren zum betreiben einer strömungsmaschine Active EP3954875B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102020209792.5A DE102020209792A1 (de) 2020-08-04 2020-08-04 Leitschaufel

Publications (3)

Publication Number Publication Date
EP3954875A2 EP3954875A2 (de) 2022-02-16
EP3954875A3 true EP3954875A3 (de) 2022-05-04
EP3954875B1 EP3954875B1 (de) 2024-05-15

Family

ID=77042804

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21187375.7A Active EP3954875B1 (de) 2020-08-04 2021-07-23 Leitschaufel, verdichterstuf für eine gasturbine, strömungsmaschine und verfahren zum betreiben einer strömungsmaschine

Country Status (3)

Country Link
US (1) US11555500B2 (de)
EP (1) EP3954875B1 (de)
DE (1) DE102020209792A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT526083B1 (de) * 2022-09-07 2023-11-15 Andritz Hydro Gmbh Leitschaufel

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69408650T2 (de) * 1993-12-22 1998-08-06 Snecma Turbinenschaufel mit verstellbare Wölbung
EP1505263A1 (de) * 2003-08-08 2005-02-09 Siemens Aktiengesellschaft Abströmleiteinrichtung im Diffusor einer Strömungsmaschine und Verfahren zur Strömungsablenkung
EP3339572A1 (de) * 2016-12-20 2018-06-27 Rolls-Royce plc Variable leitschaufelvorrichtung

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4856962A (en) 1988-02-24 1989-08-15 United Technologies Corporation Variable inlet guide vane
US5931636A (en) * 1997-08-28 1999-08-03 General Electric Company Variable area turbine nozzle
DE10257044B4 (de) 2002-12-06 2005-01-27 Mtu Aero Engines Gmbh Gasturbine
US7114911B2 (en) 2004-08-25 2006-10-03 General Electric Company Variable camber and stagger airfoil and method
FR2933148B1 (fr) * 2008-06-25 2010-08-20 Snecma Compresseur de turbomachine
DE102008058014A1 (de) 2008-11-19 2010-05-20 Rolls-Royce Deutschland Ltd & Co Kg Mehrschaufelige Verstellstatoreinheit einer Strömungsarbeitsmaschine
EP3009607A1 (de) * 2014-10-13 2016-04-20 United Technologies Corporation Fest-verstellbare schaufel mit vergussspalt
GB201419951D0 (en) * 2014-11-10 2014-12-24 Rolls Royce Plc A guide vane
JP6381425B2 (ja) 2014-12-01 2018-08-29 三菱日立パワーシステムズ株式会社 軸流圧縮機
CN105715585B (zh) 2014-12-05 2019-06-28 上海电气集团股份有限公司 可变几何出口导叶
DE102015004649A1 (de) 2015-04-15 2016-10-20 Man Diesel & Turbo Se Leitschaufelverstellvorrichtung und Strömungsmaschine
US10815821B2 (en) * 2018-08-31 2020-10-27 General Electric Company Variable airfoil with sealed flowpath

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69408650T2 (de) * 1993-12-22 1998-08-06 Snecma Turbinenschaufel mit verstellbare Wölbung
EP1505263A1 (de) * 2003-08-08 2005-02-09 Siemens Aktiengesellschaft Abströmleiteinrichtung im Diffusor einer Strömungsmaschine und Verfahren zur Strömungsablenkung
EP3339572A1 (de) * 2016-12-20 2018-06-27 Rolls-Royce plc Variable leitschaufelvorrichtung

Also Published As

Publication number Publication date
US20220042514A1 (en) 2022-02-10
DE102020209792A1 (de) 2022-02-10
EP3954875A2 (de) 2022-02-16
US11555500B2 (en) 2023-01-17
EP3954875B1 (de) 2024-05-15

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