EP0127219A1 - Dispositif de réglage des aubes directrices d'une turbomachine axiale - Google Patents

Dispositif de réglage des aubes directrices d'une turbomachine axiale Download PDF

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Publication number
EP0127219A1
EP0127219A1 EP84200607A EP84200607A EP0127219A1 EP 0127219 A1 EP0127219 A1 EP 0127219A1 EP 84200607 A EP84200607 A EP 84200607A EP 84200607 A EP84200607 A EP 84200607A EP 0127219 A1 EP0127219 A1 EP 0127219A1
Authority
EP
European Patent Office
Prior art keywords
adjusting
fork
sleeve
adjusting sleeve
axis
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
EP84200607A
Other languages
German (de)
English (en)
Other versions
EP0127219B1 (fr
Inventor
Jan Faltys
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.)
Sulzer Escher Wyss AG
Original Assignee
Sulzer Escher Wyss AG
Escher Wyss 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 Sulzer Escher Wyss AG, Escher Wyss AG filed Critical Sulzer Escher Wyss AG
Priority to AT84200607T priority Critical patent/ATE21435T1/de
Publication of EP0127219A1 publication Critical patent/EP0127219A1/fr
Application granted granted Critical
Publication of EP0127219B1 publication Critical patent/EP0127219B1/fr
Expired 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
    • 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
    • F01D17/20—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted
    • 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
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18888—Reciprocating to or from oscillating
    • Y10T74/1892—Lever and slide
    • Y10T74/18936—Slidable connections

Definitions

  • the invention relates to an adjusting device for the guide vanes of an axial turbomachine with an adjusting sleeve arranged in the interior of the machine housing, the displacement of which in the axial direction makes the guide vanes adjustable, the axial displacement of the adjusting sleeve being effected by means of an adjusting fork, the pivot axis of which in the machine housing and the arms thereof the adjustment sleeve are rotatably mounted.
  • Such adjustment devices are known for example from CH 364 581 or DE-A 3 125 639 and are used for adjusting the guide vanes, for example of turbocompressors, expanders or gas turbines.
  • a displacement of the adjusting sleeve in the axial direction causes the guide vanes to rotate about their axis.
  • the support of the adjusting sleeve in the machine housing is difficult.
  • the support of the adjusting sleeve by means of guide Stan described in DE 2235154 - are gen, wherein provided on one side two leksfix Schlierende rods and on the opposite side a horizontal sliding permitting supports, brings a particularly useful for relatively long adjustment sleeves solution.
  • the invention sets itself the task of eliminating the disadvantages of the prior art and, in particular, of further developing and improving an adjusting device of the type mentioned at the outset in such a way that the adjusting sleeve support is avoided with a simple and inexpensive construction regardless of the length of the adjusting sleeve a sliding guide, has a considerably lower frictional resistance and self-locking is largely avoided.
  • this object is achieved in that straps are arranged parallel to the arms of the adjustment fork, each with an axis of rotation provided in the machine housing and in the adjustment sleeve, the straps forming a parallelogram guide for the adjustment sleeve with respect to the machine housing with the arms of the adjustment fork.
  • This parallelogram guide ensures an extremely exact translatory movement of the adjusting sleeve achieved with the lowest possible friction, whereby tilting of the adjusting sleeve is largely avoided and self-locking is prevented.
  • the points of application of the adjusting force that is to say the pivot points of the adjusting fork arms and the tabs in the adjusting sleeve, are provided at the height of the axis and the tilting moment is thus kept as small as possible.
  • the adjustment fork has sufficient rigidity, as described, for example, in DE-A 3 125 639.
  • a rotor 2 is arranged centrally in a housing 1 of an axial compressor and is provided with rotor blades 3 on its outside.
  • the rotor 2 is concentrically surrounded by a fixed guide vane carrier 4, in which adjustable guide vanes 5, that is to say rotatable about an adjustment axis, and further fixed guide vanes 5 1 are used.
  • the guide vanes 5 of the outer guide vane ring are provided with adjusting levers 6 which engage in annular grooves 7 of an axially displaceable adjusting sleeve 8.
  • this adjusting sleeve 8 is displaced in the axial direction, the adjusting levers 6 are pivoted and the guide vanes 5 are accordingly rotated about their axis.
  • the other guide vanes 5 1 can either be fixed or adjustable in a manner analogous to that of the guide vanes 5.
  • the necessary axial displacement of the adjusting sleeve 8 takes place by means of a pivotable adjusting fork 11 which is rotatable about pivot axes 10 and is mounted in the housing 1.
  • the arms 12 of this adjusting fork engage in pivot points 13 in the adjusting sleeve 8, so that when the adjusting fork 11 is pivoted about an angle c4 shifts the adjusting sleeve 8 by a path S in the axial direction.
  • the axis of rotation 13 of the adjustment fork arms is selected such that it lies approximately at the level of the axis A of the turbomachine, so that the adjustment force acts in the center of the adjustment cylinder and a tilting moment is avoided as far as possible.
  • brackets 14 are provided which are rotatably mounted in the machine housing 1 on both sides in the pivot points of an axis of rotation 15.
  • the tabs 14 have at their other end on both sides further pivots 16 which engage in the adjusting sleeve 8.
  • the distances between the axes of rotation 10 and 13 and 15 and 16 on the one hand, and the axes of rotation 13 and 16 and 10 and 15 on the other hand, are chosen to be as exactly as possible, so that a parallelogram guide that is as precise as possible is formed, which ensures precise guidance of the adjusting sleeve 8 in the axial direction, with a particularly simple and inexpensive construction and the lowest possible frictional forces.
  • the axis of rotation 16 of the brackets has approximately the same distance from the axis A as the axis of rotation 13 of the adjustment fork, or if both axes of rotation 13 and 16 are selected at axis height.
  • the parallelogram long sides 13 - 16 and 10 - 15 run parallel to the axis A.
  • a solution with an oblique parallelogram is also possible, in which the axes of rotation 13 and 16 or 10 and 15 have a different axis spacing, the parallelogram long sides 13 - 16 and 10 - 15 run diagonally to the axis A.
  • the other fulcrums 16 and 13 of the adjusting cylinder 8 describe a piece of a circular arc, only the axial component being used for adjusting the guide vanes.
  • the vertical component to the axis which is only relatively small in the usual adjustment paths, can be accommodated in the annular grooves 7 without difficulty by a sufficient radial play of the sliding blocks of the adjusting lever 6.
  • the drive for the adjustment fork 11 can be carried out manually or by a motor via a control or regulating device and can engage the adjustment fork 11 at a suitable point.
  • a handwheel 17 is provided for this purpose, which acts via a worm 18 in a gearbox 19 on a toothed ring 20, which is seated firmly on the extended end of the one pivot axis 10.
  • the drive can also take place in a different way and act on the adjusting fork 11 at a different point.
  • connection points of the adjustment fork with the machine housing can also be provided at the outer end of the arms of the adjustment fork instead of between the apex of the adjustment fork and the connection points with the adjustment sleeve.
  • the outer ends of the adjustment fork can also be connected to one another to improve stability and rigidity, so that the fork becomes a continuous ring.
  • the tabs can also be connected at their ends and thus also form a fork or a ring.
  • other adjustment devices can also be provided which work with a sleeve of any shape which can be displaced in the axial direction.
  • the fork can be adjusted instead of at the pivot points, for example also on an extension specified at the apex of the fork by means of a linearly acting servomotor.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Control Of Turbines (AREA)
  • Supercharger (AREA)
EP84200607A 1983-05-31 1984-05-02 Dispositif de réglage des aubes directrices d'une turbomachine axiale Expired EP0127219B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84200607T ATE21435T1 (de) 1983-05-31 1984-05-02 Verstelleinrichtung fuer die leitschaufeln einer axialen turbomaschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2972/83 1983-05-31
CH2972/83A CH661772A5 (de) 1983-05-31 1983-05-31 Axiale turbomaschine.

Publications (2)

Publication Number Publication Date
EP0127219A1 true EP0127219A1 (fr) 1984-12-05
EP0127219B1 EP0127219B1 (fr) 1986-08-13

Family

ID=4245770

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84200607A Expired EP0127219B1 (fr) 1983-05-31 1984-05-02 Dispositif de réglage des aubes directrices d'une turbomachine axiale

Country Status (6)

Country Link
US (1) US4558986A (fr)
EP (1) EP0127219B1 (fr)
JP (1) JPS59231106A (fr)
AT (1) ATE21435T1 (fr)
CH (1) CH661772A5 (fr)
DE (2) DE3322192C1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1031703A3 (fr) * 1999-02-23 2000-09-13 ROLLS-ROYCE plc Dispositifs de commande d'aubes directrices

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4925364A (en) * 1988-12-21 1990-05-15 United Technologies Corporation Adjustable spacer
US4990056A (en) * 1989-11-16 1991-02-05 General Motors Corporation Stator vane stage in axial flow compressor
FR2920469A1 (fr) * 2007-08-30 2009-03-06 Snecma Sa Aube a calage variable de turbomachine
US20100172743A1 (en) * 2009-01-06 2010-07-08 General Electric Company Variable position guide vane actuation system and method
US8297918B2 (en) * 2009-01-06 2012-10-30 General Electric Company Variable position guide vane actuation system and method
GB201409449D0 (en) 2014-05-28 2014-07-09 Rolls Royce Deutschland A variable stator vane arrangment
DE112015003201B4 (de) * 2014-07-10 2025-03-13 Mitsubishi Heavy Industries, Ltd. Wartungsverfahren für variable leitflügelvorrichtung und variable leitflügelvorrichtung

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE903052C (de) * 1941-12-28 1954-02-01 Maschf Augsburg Nuernberg Ag Abgasturbogeblaese fuer Brennkraftmaschinen, insbesondere Zweitakttbrennkraftmaschinen
DE1121885B (de) * 1960-06-14 1962-01-11 Daimler Benz Ag Leitschaufel-Verstellvorrichtung fuer Stroemungsmaschinen, insbesondere Gasturbinen
CH364581A (de) * 1959-02-13 1962-09-30 Sulzer Ag Axialverdichter mit drehbaren Leitschaufeln
GB911535A (en) * 1959-08-24 1962-11-28 Rolls Royce Compressors for gas turbine engines
US4214850A (en) * 1977-10-12 1980-07-29 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Variable-capacity radial turbine
FR2508564A1 (fr) * 1981-06-26 1982-12-31 Sulzer Ag Dispositif de reglage des aubes directrices d'une turbomachine axiale

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2575665A (en) * 1943-11-13 1951-11-20 Borg Warner Clutch control for marine transmission
DE1583675C3 (de) * 1967-12-28 1973-01-04 Mannesmann-Meer Ag, 4050 Moenchengladbach Axiale Kokillenbewegungseinrichtung für Stranggießanlagen
CH553922A (de) * 1972-07-13 1974-09-13 Bbc Sulzer Turbomaschinen Abstuetzvorrichtung fuer eine verstellhuelse.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE903052C (de) * 1941-12-28 1954-02-01 Maschf Augsburg Nuernberg Ag Abgasturbogeblaese fuer Brennkraftmaschinen, insbesondere Zweitakttbrennkraftmaschinen
CH364581A (de) * 1959-02-13 1962-09-30 Sulzer Ag Axialverdichter mit drehbaren Leitschaufeln
GB911535A (en) * 1959-08-24 1962-11-28 Rolls Royce Compressors for gas turbine engines
DE1121885B (de) * 1960-06-14 1962-01-11 Daimler Benz Ag Leitschaufel-Verstellvorrichtung fuer Stroemungsmaschinen, insbesondere Gasturbinen
US4214850A (en) * 1977-10-12 1980-07-29 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Variable-capacity radial turbine
FR2508564A1 (fr) * 1981-06-26 1982-12-31 Sulzer Ag Dispositif de reglage des aubes directrices d'une turbomachine axiale

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1031703A3 (fr) * 1999-02-23 2000-09-13 ROLLS-ROYCE plc Dispositifs de commande d'aubes directrices

Also Published As

Publication number Publication date
ATE21435T1 (de) 1986-08-15
DE3322192C1 (de) 1984-07-12
JPS59231106A (ja) 1984-12-25
EP0127219B1 (fr) 1986-08-13
JPH0312201B2 (fr) 1991-02-19
US4558986A (en) 1985-12-17
CH661772A5 (de) 1987-08-14
DE3460468D1 (en) 1986-09-18

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