EP2206891A1 - Dispositif de réglage d'une aube directrice - Google Patents

Dispositif de réglage d'une aube directrice Download PDF

Info

Publication number
EP2206891A1
EP2206891A1 EP09000365A EP09000365A EP2206891A1 EP 2206891 A1 EP2206891 A1 EP 2206891A1 EP 09000365 A EP09000365 A EP 09000365A EP 09000365 A EP09000365 A EP 09000365A EP 2206891 A1 EP2206891 A1 EP 2206891A1
Authority
EP
European Patent Office
Prior art keywords
housing
adjusting device
guide vane
adjusting ring
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.)
Withdrawn
Application number
EP09000365A
Other languages
German (de)
English (en)
Inventor
Roderich Bryk
Björn Buchholz
Jens Sander
Vadim Shevchenko
Stephan Sonnen
Oliver Dr. Strohmeier
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Priority to EP09000365A priority Critical patent/EP2206891A1/fr
Priority to PCT/EP2010/050009 priority patent/WO2010081751A1/fr
Publication of EP2206891A1 publication Critical patent/EP2206891A1/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/30—Application in turbines
    • F05D2220/32—Application in turbines in gas turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/40—Transmission of power
    • F05D2260/403—Transmission of power through the shape of the drive components
    • F05D2260/4031—Transmission of power through the shape of the drive components as in toothed gearing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/70—Adjusting of angle of incidence or attack of rotating blades
    • F05D2260/79—Bearing, support or actuation arrangements therefor

Definitions

  • a modern turbomachine for example a gas turbine, has a high power density.
  • the individual components of the gas turbine are exhausted in terms of strength and aerodynamic function.
  • the compressor of the gas turbine is aerodynamically highly loaded, so that the flow through the compressor is sensitive to stationary and transient disturbances, which can be caused for example by a nonuniformity of the inflow in the velocity field and / or temperature field.
  • Such disturbances can lead to a lowering of the surge margin, so that the operation of the compressor can become unstable.
  • the remedy here is to operate the compressor on a working line with a large surge margin. To maintain the sufficient surge margin for possible operating scenarios would reduce the aerodynamic load of the compressor, which, however, is accompanied by a reduction in the efficiency of the compressor.
  • the axial-flow compressor has rows of blades and vanes. With the blades, the flow through the compressor is energized.
  • the guide vanes define the inflow of the blades, resulting in the aerodynamic effect of the blades.
  • the surge margin can be influenced. In the variation of the angle of attack of the guide vanes whose blade is to pivot accordingly, which can be accomplished with a known Leitschaufelverstell Anlagen.
  • the object of the invention is to provide a Leitschaufelverstell issued and a turbomachine with the Leitschaufelverstell issued, wherein the angle of attack of the vanes is securely adjustable, wherein the Leitschaufelverstell responded is simple and space saving in the design.
  • the vane adjusting device according to the invention for a turbomachine which has a housing and a vane ring forming vanes, which are mounted in the housing from outside accessible pivotable about its longitudinal axis, which extends substantially radially to the axis of rotation of the turbomachine, has an adjusting ring which surrounds the housing concentrically and rotatable about its center is supported on the housing, a Verstellringgetriebe and provided for each vane on a Verschwenkhebel observed which engages outside of the housing on its associated vane and is fixed to the adjusting ring, which has a circumferentially extending toothing segment, in that the Verstellringgetriebe engages, so that can be brought from the Verstellringgetriebe the adjusting ring in a predetermined rotational position and in this durable, whereby the angle of attack of the vanes is adjustable.
  • the turbomachine according to the invention has the Leitschaufelverstell sensible.
  • the adjusting ring gear engages in the toothed segment
  • the adjusting ring and the adjusting ring gear are positively coupled with one another in the circumferential direction.
  • the adjusting ring is locked by the Verstellringgetriebe in the circumferential direction, so that the rotational position of the adjusting ring is fixed by the Verstellringgetriebe.
  • Attacks a circumferential force on the adjusting ring for example, caused by gas forces acting on the vanes during operation of the turbomachine and are transmitted from the Verstellhebel worn on the adjusting ring, the Verstellringgetriebe holds the adjusting ring in the present circumferential position.
  • the adjusting ring is driven by Verstellringgetriebe.
  • the adjusting ring is only via the Verstellringgetriebe and the toothed segment rotatable when the Verstellringgetriebe is driven accordingly.
  • the Verstellringgetriebe one hand, the function of an adjustment and on the other hand, the function of a circumferential lock for the adjusting ring.
  • a hydraulic drive with a push rod need not be provided, as would be necessary according to a conventional vane adjusting device.
  • the guide vane device according to the invention is simple in construction and saves space in the construction.
  • the Verstellringgetriebe preferably has a worm wheel, which is rotatably driven by a motor. Further, it is preferred that the toothed segment and the worm wheel are designed such that the adjusting ring is held by the worm wheel on the toothed segment by self-locking in its circumferential direction. Thereby, the adjusting ring of the worm wheel, which engages with the toothed segment, is locked in the circumferential direction, both when the worm wheel is rotationally driven for Drehverstellen the adjusting ring and when the worm wheel is at a standstill. Furthermore, the worm wheel need not be held in its circumferential direction, since it can not be made to rotate by the adjusting ring due to the self-locking.
  • the toothed segment preferably has a straight spur toothing on the outer peripheral edge of the adjusting ring. This can advantageously engage the worm wheel on the outer peripheral edge in the toothed segment.
  • the adjusting ring is supported circumferentially movable radially outwardly on its inner edge on the housing.
  • the worm wheel engages on the outer circumference in the toothed segment, it can be held in position by a radially inwardly acting pressing force.
  • this pressing force can be advantageously absorbed by the housing.
  • the size of the angle spanned by the toothed segment preferably corresponds to the maximum pitch adjustment range of the vane adjustment.
  • the length of the toothed segment is advantageously matched to the maximum pitch adjustment range of the vane adjusting device, whereby an unnecessary weakening of the adjusting ring is avoided by a too large toothing segment.
  • the motor is preferably an electric motor, wherein preferably the worm wheel is driven directly by the electric motor. Furthermore, the electric motor is preferably supported on the housing. As a result, the Leitschaufelverstell noticed is simple and compact. Further preferably, a plurality of toothed segments, in which worm gears engage several Verstellringgetriebe can be provided on an adjusting ring, in which case the Verstellringgetriebe be actuated by respective drives synchronously.
  • Leitschaufelverstell spuren 1 are shown, which are mounted on a turbocompressor housing 2 of a turbocompressor.
  • a vane ring 3 is installed, which is formed by a plurality of vanes 4, which are arranged distributed uniformly over the circumference of the turbocompressor housing 2.
  • the vanes 4 have an airfoil attached to a blade root. With the airfoil, the vane 4 is aerodynamically effective, so act on the airfoil during operation of the turbocompressor gas forces.
  • the blade root of the vane 4 has a blade root 5, the longitudinal axis of which extends in the radial direction of the turbocompressor housing 2.
  • the blade root pin 5 is inserted into a through hole provided in the turbo compressor housing 2, whereby the guide blade 4 is rotatable about its longitudinal axis.
  • the guide vane 4 is thus rotatably mounted in the turbo compressor housing 2 so that the angle of attack of the airfoil is adjustable by turning the guide vane 4 on the blade root pin 5.
  • the turning of all the guide vane ring 4 forming the guide vanes 4 is accomplished with the vane adjusting device 1.
  • the guide vane adjusting device 1 has an adjusting ring 6 which extends concentrically around the turbo-compressor housing 2 and is arranged at the level of the vane ring 3.
  • a support ring 7 is provided, on which roller bearings 8 are uniformly distributed over the circumference of the turbocompressor housing 2.
  • the roller bearings 8 each have a radially outer roller body on which the adjusting ring 6 is supported with its inner rolling surface 9.
  • the adjusting ring 6 is fixed in the radial direction by the roller bodies 8 and mounted movably in the circumferential direction.
  • the LeitschaufelverstellISS 1 further comprises for each vane 4 a pawl 10 which is formed elongated.
  • the pawl 10 is fastened with its one longitudinal end outside of the turbocompressor housing 2 at the end face on the blade root pin 5. With one longitudinal end facing away from the other longitudinal end, the pawl 10 along the longitudinal direction of the turbocompressor housing 2 in the direction of the adjusting ring 6.
  • a lever 11 is pivotally mounted with its one longitudinal end, the lever 11 with its other longitudinal end on the adjusting ring 6 also pivotable is fixed.
  • the lever 11 is arranged inclined in the circumferential direction of the turbo compressor housing 2, so that when the adjusting ring 6 is rotated on the pawl 10 via the lever 11, a thrust or tensile force is transferable, depending on the direction in which the adjusting ring 6 is rotated.
  • the thrust force or the tensile force is transmitted from the pawl 10 to the blade root 5 as a torque, so that the vane 4 is rotated accordingly.
  • FIG. 2 and 3 a conventional Leitschaufelverstell listening 1 is shown.
  • the conventional Leitschaufelverstell listening 1 has on the adjusting ring 6 on Verstellringauge 101 which projects radially on the outer edge of the adjusting ring 6.
  • Attached pivotably to the adjusting ring eye 101 is a push rod 102 which extends in the circumferential direction of the adjusting ring 6.
  • the conventional Leitschaufelverstell driving 1 a hydraulic drive 103 which is supported on a turbo compressor supporting the compressor support 104 and with the push rod 102 is leksverschiebar.
  • the push rod 102 is coupled to the hydraulic drive 103 via a yoke 105 and a rod end 106. By longitudinal displacement of the push rod 102, the adjusting ring 6 can be rotated in the circumferential direction.
  • FIG. 1 an embodiment of the Leitschaufelverstell Anlagen 1 according to the invention is shown.
  • the embodiment has on the outer edge 12 of the adjusting ring 6 has an outer toothing 13 which is formed as a spur toothing.
  • Engaging in the external toothing 13 a worm wheel (not shown) directly driven by an electric motor (not shown) is arranged.
  • the electric motor is attached to the turbo compressor housing 2.
  • the external teeth 13 and the worm wheel are designed such that the adjusting ring 6 is held by the worm wheel on the external teeth 13 by self-locking in its circumferential direction.
  • the external toothing 13 extends in the circumferential direction of the adjusting ring 6 and thus spans an angle.
  • the size of the spanned by the external teeth 13 angle corresponds to the desired maximum Anstellwinkelverstell Scheme the airfoil.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP09000365A 2009-01-13 2009-01-13 Dispositif de réglage d'une aube directrice Withdrawn EP2206891A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP09000365A EP2206891A1 (fr) 2009-01-13 2009-01-13 Dispositif de réglage d'une aube directrice
PCT/EP2010/050009 WO2010081751A1 (fr) 2009-01-13 2010-01-04 Dispositif de réglage d'aubes directrices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09000365A EP2206891A1 (fr) 2009-01-13 2009-01-13 Dispositif de réglage d'une aube directrice

Publications (1)

Publication Number Publication Date
EP2206891A1 true EP2206891A1 (fr) 2010-07-14

Family

ID=40626589

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09000365A Withdrawn EP2206891A1 (fr) 2009-01-13 2009-01-13 Dispositif de réglage d'une aube directrice

Country Status (2)

Country Link
EP (1) EP2206891A1 (fr)
WO (1) WO2010081751A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014070630A1 (fr) 2012-11-05 2014-05-08 United Technologies Corporation Bague de synchronisation de moteur de turbine à gaz

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103291383B (zh) * 2013-06-26 2015-02-25 上海交通大学 含有齿轮传动的压气机多级静叶调节机构
US9194249B2 (en) 2013-07-25 2015-11-24 Solar Turbines Incorporated Method for enhancing power of a gas turbine engine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2448572A1 (de) * 1974-10-11 1976-04-22 Sigma Lutin Schaufeldrehmechanismus fuer ein schaufelgitter
GB1466613A (en) * 1973-09-07 1977-03-09 Nissan Motor Guide vane control for an automobile gas turbine engine
FR2688827A1 (fr) * 1992-03-18 1993-09-24 Snecma Systeme de commande d'aubes de stator a calage variable, pour un turboreacteur.
EP1672180A1 (fr) * 2004-12-16 2006-06-21 Snecma Etage d'aubes de redresseur actionnées par une couronne rotative déplacée par des moyens moteurs électriques

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1466613A (en) * 1973-09-07 1977-03-09 Nissan Motor Guide vane control for an automobile gas turbine engine
DE2448572A1 (de) * 1974-10-11 1976-04-22 Sigma Lutin Schaufeldrehmechanismus fuer ein schaufelgitter
FR2688827A1 (fr) * 1992-03-18 1993-09-24 Snecma Systeme de commande d'aubes de stator a calage variable, pour un turboreacteur.
EP1672180A1 (fr) * 2004-12-16 2006-06-21 Snecma Etage d'aubes de redresseur actionnées par une couronne rotative déplacée par des moyens moteurs électriques

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014070630A1 (fr) 2012-11-05 2014-05-08 United Technologies Corporation Bague de synchronisation de moteur de turbine à gaz
EP2914817A4 (fr) * 2012-11-05 2016-06-08 United Technologies Corp Bague de synchronisation de moteur de turbine à gaz
US9422825B2 (en) 2012-11-05 2016-08-23 United Technologies Corporation Gas turbine engine synchronization ring

Also Published As

Publication number Publication date
WO2010081751A1 (fr) 2010-07-22

Similar Documents

Publication Publication Date Title
DE3874439T2 (de) Kompressor mit geteiltem gehaeuse.
EP2002127B1 (fr) Dispositif directeur à pré-tourbillonnement
EP3283733B1 (fr) Dispositif d'actionnement des aubes de guidage variables et turbomachine
DE102010038185B4 (de) Düseneinrichtung eines Turboladers variabler Geometrie
DE102008032661A1 (de) Strömungsmaschine
DE102014203354B4 (de) Variable düseneinheit und variables turbinengeometrie-ladersystem
DE3507035A1 (de) Gasturbinentriebwerk
EP2107219A1 (fr) Segment de couronne d'aubes directrices et support de couronne pour un boîtier de turbomachine divisé horizontalement
EP0131719B1 (fr) Dispositif variable de guidage
EP2617947B1 (fr) Turbine à gaz d'avion avec soufflante ajustable
WO2008155400A1 (fr) Entraînement pour un dispositif de guidage de prérotation
EP3269941B1 (fr) Grille d'aube réglable pour turbomachines
DE102006004785A1 (de) Strömungsmaschine
DE2459843A1 (de) Getriebeanordnung fuer geblaese mit variabler steigung
DE10238658A1 (de) Verdichter, insbesondere in einem Abgasturbolader für eine Brennkraftmaschine
EP2206891A1 (fr) Dispositif de réglage d'une aube directrice
EP2730751B1 (fr) Dispositif de réglage d'aubes directrices d'une turbine à gaz
EP1798420B1 (fr) Ventilateur axial à pales variables et méthode pour monter ce ventilateur
DE102007022356A1 (de) Ladeeinrichtung
DE10238412A1 (de) Turbolader mit variabler Turbinengeometrie
EP1512490B1 (fr) Procédé de réparation d'une aube de turbomachine
DE1601638A1 (de) Geblaese fuer Gasturbinenstrahltriebwerke
DE102007052735B4 (de) Ladeeinrichtung
EP1391585B1 (fr) Turbocompresseur à géométrie variable
DE102004023211A1 (de) Abgasturbolader für eine Brennkraftmaschine mit variabler Turbinengeometrie

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA RS

AKY No designation fees paid
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20110115