EP3502483B1 - Stützung eines turbomaschinenverstellrings durch schaufel-hebelarme - Google Patents

Stützung eines turbomaschinenverstellrings durch schaufel-hebelarme Download PDF

Info

Publication number
EP3502483B1
EP3502483B1 EP17208572.2A EP17208572A EP3502483B1 EP 3502483 B1 EP3502483 B1 EP 3502483B1 EP 17208572 A EP17208572 A EP 17208572A EP 3502483 B1 EP3502483 B1 EP 3502483B1
Authority
EP
European Patent Office
Prior art keywords
lever
control ring
levers
axial
radial
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.)
Active
Application number
EP17208572.2A
Other languages
English (en)
French (fr)
Other versions
EP3502483A1 (de
Inventor
Gasper CAFUTA
Opara TOMAZ
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.)
Cimos dd
Original Assignee
Cimos dd
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 Cimos dd filed Critical Cimos dd
Priority to EP17208572.2A priority Critical patent/EP3502483B1/de
Publication of EP3502483A1 publication Critical patent/EP3502483A1/de
Application granted granted Critical
Publication of EP3502483B1 publication Critical patent/EP3502483B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/46—Fluid-guiding means, e.g. diffusers adjustable
    • F04D29/462—Fluid-guiding means, e.g. diffusers adjustable 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
    • F01D17/165—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
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/46—Fluid-guiding means, e.g. diffusers adjustable
    • F04D29/466—Fluid-guiding means, e.g. diffusers adjustable especially adapted for liquid fluid pumps
    • 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
    • F05D2220/40—Application in turbochargers
    • 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
    • F05D2250/00—Geometry
    • F05D2250/50—Inlet or outlet
    • F05D2250/52—Outlet
    • 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
    • F05D2260/30—Retaining components in desired mutual position
    • F05D2260/36—Retaining components in desired mutual position by a form fit connection, e.g. by interlocking
    • 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

  • the invention relates to a turbomachine fluid guiding stator device.
  • the invention also relates to a turbomachine comprising at least one such device. More particularly, the invention relates to a fluid guiding stator device comprising a stationary blade assembly with a variable cross-section and a turbomachine comprising at least one such device.
  • turbomachine is intended to mean, as is usual, any machine through which a fluid passes, and which receives (turbine) and/or generates (compressor, blower, fan, pumps) fluidic energy, comprising a stator and at least one wheel mounted to rotate with respect to the stator about a main axis of the machine.
  • Each wheel is provided with a blade assembly (assembly of a plurality of blades), named mobile blade assembly, and is in fluid communication with a fluid guiding stator device comprising a blade assembly, named stationary blade assembly, fixedly attached to the stator.
  • a turbomachine may be: axial or radial; with incompressible fluid (liquid) or with compressible fluid (air, gas, vapours ).
  • a turbine is a turbomachine receiving fluidic energy comprising a stator and at least one wheel mounted to rotate with respect to the stator about a main axis of the turbine.
  • Each wheel of a turbine is provided with a mobile blade assembly supplied with fluid from a fluid guiding stator device, named distributor, comprising a stationary blade assembly fixedly attached to the stator.
  • a compressor is a turbomachine generating fluidic energy comprising a stator and at least one wheel mounted to rotate with respect to the stator about a main axis of the compressor.
  • Each wheel of the compressor is provided with a mobile blade assembly delivering the fluid into a fluid guiding stator device, named diffusor, comprising a stationary blade assembly fixedly attached to the stator.
  • a turbomachine can also be a turbocompressor, i.e. a machine which combines the functions of a turbine and compressor and thus has a distributor for the turbine and a diffusor for the compressor.
  • a turbomachine fluid guiding stator device is a device adapted to guide a flow of fluid, in particular to a turbine or even for guiding a flow of fluid from a compressor.
  • Some fluid guiding devices comprise a stationary blade assembly having a variable cross-section, i.e. a blade assembly comprising a plurality of blades interposed between two coaxial rings along a main axis defining a passage, named fluid passage:
  • a control mechanism is provided to modify the angular position of the blades.
  • Such a guide stator device with a stationary blade assembly having a variable cross-section is adapted to adjust a flow rate and a direction of a flow of fluid passing through said fluid passage depending upon operating conditions of the turbomachine, e.g. based on the state of the turbomachine.
  • Numerous mechanisms are known for controlling the angular position of the blades of a stationary blade assembly having a variable cross-section of a turbomachine fluid guiding stator device.
  • a known mechanism for controlling the angular position of blades can comprise:
  • Rotationally driving the control ring about the main axis thus allows the levers of said plurality of levers to be rotationally guided so as to modify the angular position of the blades of the stationary blade assembly.
  • control ring can have a plurality of radial recesses adapted to receive said plurality of levers, each lever of said plurality of levers having a proximal end rotationally coupled to a blade of said plurality of blades and a distal end, named head, arranged in a recess in the control ring.
  • EP 2 239 425 describes, in a first embodiment, holding the control ring axially and radially by way of pins mounted on a ring of the stationary blade assembly facing the control ring, and by way of bosses formed on this ring of the stationary blade assembly.
  • each pin comprises an arm and shoulders at one end of the arm and protruding from the arm.
  • the control ring is held axially by the pins between shoulders of each pin and a boss arranged around the arm of this pin, and is held radially by the arm of each pin.
  • control ring is held axially and radially by protrusions formed on the control ring and extending towards and away from a ring of the stationary blade assembly facing the control ring, and by pins mounted on this ring of the stationary blade assembly.
  • the process of axially and radially holding the control ring described in EP 2 239 425 thus requires the addition of supplementary parts (pins) to the turbomachine fluid guiding stator device and the adaption of either the structure of the control ring (protrusions of the control ring) or the structure of the ring of the stationary blade assembly facing the control ring (bosses).
  • US 2002/0098081 describes a control ring held axially and radially by levers rotationally coupled to blades of the stationary blade assembly and by axial projecting noses of the control ring placed against a peripheral crown-shape recess of a ring of the stationary blade assembly facing the control ring.
  • the control ring has a plurality of axial recesses formed in the thickness of the control ring and each lever has a distal end arranged in a recess in the control ring so as to axially hold the control ring.
  • EP 1 357 255 A1 discloses a variable vane assembly wherein a control ring is guided both axially and radially by lever heads.
  • the known ways of axially and radially holding the control ring require the structure of the control ring and/or of the stationary blade assembly to be made more complex and/or require supplementary parts to be added to the guide stator device.
  • the design and manufacture of guide devices comprising such arrangements for holding the control ring are thus relatively complex.
  • the addition of supplementary parts necessarily involves an increase in the weight of the guide stator device and can lead to a higher breakdown risk.
  • the invention aims to overcome these disadvantages.
  • the invention thus aims to propose a turbomachine fluid guiding stator device comprising a mechanism which is reliable, simple and inexpensive for controlling the angular position of blades of a stationary blade assembly with a variable cross-section.
  • the invention aims in particular to propose such a mechanism comprising a control ring which is axially held in a simple and reliable manner.
  • the invention likewise aims to propose such a mechanism comprising a control ring which is radially held in a simple and reliable manner.
  • the invention aims in particular to propose an arrangement for axially holding the control ring allowing simple design and manufacturing of the mechanism for controlling the angular position of the blades of a turbomachine stationary blade assembly with a variable cross-section.
  • the invention likewise aims to propose an arrangement for radially holding the control ring allowing simple design and manufacturing of the mechanism for controlling the angular position of the blades of a turbomachine stationary blade assembly with a variable cross-section.
  • the invention also aims to reduce the number of parts of a turbomachine fluid guiding stator device allowing the control ring to be held axially and radially.
  • the invention thus likewise aims to propose an arrangement for axially and radially holding the control ring allowing the weight of the turbomachine fluid guiding stator device to be reduced.
  • the invention likewise aims to propose a turbomachine having the same advantages.
  • the invention relates to a turbomachine fluid guiding stator device according to claim 1.
  • each driving lever is driven by said control ring.
  • the control ring can be driven by an arm, named driving arm, which can be coupled to the two rings of the stationary blade assembly.
  • driving arm is driven by a motor for controlling the blades of the stationary blade assembly.
  • control ring is axially held by said at least two axial holding levers - in particular by the set of levers of said plurality of levers - in any rotational position of the control ring about the main axis with respect to the stationary blade assembly.
  • the axial holding of the control ring does not require any additional part for the guide stator device other than the levers of the mechanism for controlling the angular position of the blades of the stationary blade assembly.
  • Axially holding the control ring in accordance with the invention allows the design and manufacture of a fluid guiding stator device in accordance with the invention to be facilitated. In fact, no additional part needs to be added during the manufacturing of the guide stator device in order to allow the control ring to be axially held. Furthermore, the structure of the control ring does not need to be modified to form an axial stop against a ring of the stationary blade assembly. Therefore, a control mechanism in accordance with the invention permits the use of a control ring which can be obtained by stamping, by moulding, or even by folding and/or bending by plastic deformation of a rigid wire, in particular a metal wire.
  • levers - in particular the axial holding levers - of the control mechanism can be manufactured by lost-wax moulding (in particular investment casting), injection moulding of metal powder, stamping and by cold-forming, additive manufacturing such as metal additive manufacturing or by any other suitable, simple, and inexpensive manufacturing method.
  • the invention for the first time, allows a mechanism for controlling the angular position of the blades which is simple, reliable and inexpensive to be obtained.
  • a turbomachine fluid guiding stator device comprises at least three axial holding levers, in particular at least four.
  • each lever coupled to the blades of the stationary blade assembly - preferably each lever of said plurality of levers - is an axial holding lever.
  • each axial holding lever is a driving lever coupled to a driven blade of the stationary blade assembly.
  • each blade of the stationary blade assembly is arranged in a passage, named fluid passage, delimited by faces, named guiding faces, facing each other of the two coaxial rings of the stationary blade assembly. Furthermore, the blades of said plurality of blades are arranged so as to form a plurality of channels in the fluid passage between every two blades and between the rings of the stationary blade assembly.
  • Each blade of a stationary blade assembly in accordance with the invention is rotationally guided between the two guiding faces on a theoretical axis of rotation, named pivoting axis, secant with the guiding faces, in particular normal to the two guiding faces (orthogonal to the two guiding faces when these are flat; orthogonal to the tangent to each guiding face when these are coaxial and rotationally cylindrical about the main axis of the turbomachine). Therefore, a modification of the angular position of a blade results in a modification of the geometric characteristics of each channel delimited by this blade.
  • each blade of the stationary blade assembly is a driven blade rotationally coupled to a lever of said plurality of levers of the control mechanism.
  • a fluid guiding stator device in which only some blades are driven blades rotationally coupled with the levers of said plurality of levers.
  • small connecting rods can thus be provided between the driven blades and the blades which are not coupled to the levers such that these latter blades are rotationally driven via said small connecting rods by the blades coupled to the levers.
  • each blade comprises a transmission shaft extending along said pivoting axis of this blade and that a ring of the stationary blade assembly, in particular the ring of the stationary blade assembly facing the control ring, comprises a plurality of bearings for receiving the transmission shafts, each transmission shaft passing through a bearing of said ring of the stationary blade assembly to an end of the transmission shaft coupled to a lever of said plurality of levers of the mechanism for controlling the angular position of the blades of the stationary blade assembly. Therefore, each blade is rotationally guided by a lever via the transmission shaft of this blade.
  • each driving lever co-operates, in rotation, with the control ring. More particularly, in some advantageous embodiments in accordance with the invention, each lever of said plurality of levers is a driving lever in contact with the control ring so as to be able to be rotationally driven by the control ring.
  • each lever of said plurality of levers is a driving lever in contact with the control ring so as to be able to be rotationally driven by the control ring.
  • Small connecting rods can thus be provided between the driving levers in contact with the control ring and the levers which are not in contact with the control ring such that these latter levers are rotationally driven via said small connecting rods by the driving levers.
  • a fluid guiding stator device in accordance with the invention is adapted to guide an incompressible fluid (liquid) or a compressible fluid (air, gas, vapours ).
  • a fluid guiding stator device in accordance with the invention is adapted to be integrated into a turbomachine.
  • a fluid guiding stator device in accordance with the invention can be adapted to guide a flow of fluid to a turbine of a turbomachine, the fluid guiding stator device thus being designated by the term "distributor”.
  • a fluid guiding stator device in accordance with the invention can be adapted to guide a flow of fluid from a compressor of a turbomachine, the fluid guiding stator device thus being designated by the term "diffusor".
  • the invention relates to a turbomachine comprising
  • one of the two rings of the stationary blade assembly is formed in the stator of the turbomachine. Nevertheless, in some other embodiments, both of the rings of the stationary blade assembly are formed in two pieces which are distinct from the stator.
  • the invention also relates to a turbine distributor characterised in that it is formed by a fluid guiding stator device in accordance with the invention.
  • the invention likewise relates to a compressor diffusor characterised in that it is formed by a fluid guiding stator device in accordance with the invention.
  • the invention thus likewise relates to a turbomachine comprising a distributor in accordance with the invention.
  • the invention likewise relates to a turbomachine comprising a diffusor in accordance with the invention.
  • the invention likewise relates to a turbomachine comprising a distributor in accordance with the invention and a diffusor in accordance with the invention.
  • the turbomachine is a radial turbomachine comprising at least one blade assembly mobile about an axis of rotation, said guiding faces of the stationary blade assembly of the guide stator device are thus planar faces radial with respect to the axis of rotation of the turbomachine.
  • At least two levers, named radial holding levers, of said plurality of levers are arranged so as to form radial stops against the control ring.
  • control ring is radially held exclusively by said radial holding levers.
  • the radial and axial holding of the control ring does not require any additional part for the guide stator device other than the levers of the mechanism for controlling the angular position of the blades of the stationary blade assembly.
  • each radial holding lever is a driving lever coupled to a driven blade of the stationary blade assembly.
  • some radial holding levers are also axial holding levers. Therefore, in these embodiments, at least three axial holding levers are arranged to form radial stops against the control ring such that the control ring is radially held exclusively by said at least three axial holding levers.
  • each radial holding lever is an axial holding lever.
  • each axial holding lever is likewise a radial holding lever.
  • each lever of said plurality of levers is an axial holding lever and a radial holding lever.
  • said radial holding levers can be different from the axial holding levers.
  • the axial holding levers thus permit only axial holding of the control ring and the radial holding levers permit only radial holding of the control ring.
  • At least one axial holding lever is arranged to form an axial stop against the control ring on the main axis in a first axial direction - in any rotational position of the control ring - and in that at least one axial holding lever, named external lever, is arranged to form an axial stop against the control ring on the main axis in a second axial direction opposite the first axial direction.
  • each axial holding lever comprises a support portion, named axial support, the axial support of each internal lever extending from a first side with respect to said main plane and forming a first axial stop against the control ring, and the axial support of each external lever extending from a second side, opposite to said first side, with respect to said main plane and forming a second axial stop against the control ring.
  • Each internal lever and each external lever thus each have a single axial support.
  • each internal lever is in abutment against a surface, named first surface, of the control ring and the axial support of each external lever is in abutment against a surface of the control ring opposite to said first surface with respect to said main plane.
  • a fluid guiding stator device in accordance with the invention has internal levers and external levers arranged alternately around said main axis.
  • This arrangement of internal levers and external levers allows the control ring to be held axially in a uniform manner.
  • each lever of said plurality of levers has a proximal end rotationally coupled to a blade of said plurality of blades, and a distal end, named head. Furthermore, preferably the head of each axial holding lever forms said axial support of this lever.
  • each internal lever and each external lever has a single axial support
  • said radial cavities and the axial holding levers are adapted to allow the axial holding levers to be rotationally driven by rotating the control ring.
  • radial holding can likewise be achieved by the distal end of at least three axial holding levers - in particular by the distal end of the set of levers of said plurality of levers - placed against a base of the cavity receiving this distal end.
  • each axial holding lever has two fingers each forming an axial stop against the control ring coming to be placed between said fingers of each axial holding lever.
  • the control ring can have a circular, peripheral protrusion about said main axis, this protrusion being able to be arranged between said fingers of each axial holding lever.
  • each radial holding lever comprises a support portion, named radial support, forming a radial stop against the control ring so as to prevent any movement of the control ring towards said main axis.
  • each radial holding lever allows this lever to be rotationally guided about its axis of rotation, i.e. about the pivoting axis of the blade to which it is coupled, by the control ring so as to be able to rotationally drive the blade of the stationary blade assembly to which this lever is coupled.
  • each radial holding lever is arranged to form said radial support of this lever.
  • each radial holding lever is likewise an axial holding lever
  • said radial support is arranged at least substantially orthogonally to said axial support of this lever.
  • control ring has radial recesses, named guiding recesses, arranged about said main axis, each guiding recess being adapted to receive a head of a lever - in particular an axial holding lever - of said plurality of levers.
  • Each guiding recess allows the control ring to be rotationally coupled to the lever whose head is received by this guiding recess.
  • said radial support of the head of each radial holding lever is placed in abutment against the guiding recess receiving this lever.
  • control ring is arranged to form stops delimiting end rotational positions of said levers.
  • said stops delimiting end rotational positions of the lever are formed on sections of the control ring between said guiding recesses.
  • said radial support of each radial holding lever and said control ring have conjugate shapes able to allow said radial support of each radial holding lever to roll, without sliding, against said control ring.
  • the radial holding levers can be displaced by the control ring, reducing the stresses exerted on these levers by the control ring so as to improve the control of the angular position of the blades of the stationary blade assembly and to reduce the risk of breakdown (breaking of the levers ).
  • the head of a radial holding lever can comprise edges which can slide against the control ring during the rotation of this radial holding lever.
  • each radial support of each radial holding lever has a convex shape and each guiding recess has a surface, named drive surface, in contact with this radial support, and extending at least substantially in a plane in parallel with said main axis and with a tangent to the control ring at this guiding recess.
  • said radial support of each radial holding lever is in point-wise or line-wise contact, in any angular position, with said drive surface of the guiding recess receiving this lever so as to permit slide-free rolling of the radial support of each radial holding lever against said control ring.
  • the drive surface of a guiding recess of the control ring defines a base of this guiding recess.
  • each radial holding lever when each radial holding lever is likewise an axial holding lever, the head of each radial holding lever has a recess between said axial support and said radial support of this lever.
  • This recess of this radial holding lever allows the contact surface between the axial/radial holding lever and the control ring to be reduced. Therefore, the recesses allow a reduction in the friction between the axial/radial holding levers and the control ring when the control ring is rotationally driven about said main axis.
  • the invention likewise relates to a fluid guiding stator device, a turbomachine, a turbine distributor and a compressor diffusor which are characterised in combination by all or some of the features mentioned above or below.
  • Figures 1 and 2 show fluid guiding devices 20 in accordance with two different embodiments of the invention. These devices 20 are fluid guiding devices for a radial turbomachine (not shown).
  • Each fluid guiding stator device 20 comprises a stationary blade assembly 21.
  • the stationary blade assembly 21 comprises two rings 22 coaxial along an axis, named main axis 39, which are spaced apart from each other so as to form a passage, named fluid passage, which a fluid can pass through. More particularly, the fluid passage is delimited by faces, named guiding faces, facing each other, of the two coaxial rings 22 of the stationary blade assembly 21. Said guiding faces are planar and extend radially.
  • the stationary blade assembly 21 also comprises a plurality of blades 23 arranged about said main axis 39 and held in said fluid passage between the coaxial rings 22. Furthermore, the blades 23 of said plurality of blades 23 are arranged so as to form a plurality of channels in the fluid passage between every two blades and between the rings 22 of the stationary blade assembly 21.
  • Each blade 23 is mounted to pivot with respect to the two rings 22 of the stationary blade assembly 21. In particular, in the illustrated embodiments, each blade 23 is mounted to pivot on a theoretical axis, named pivoting axis, in parallel with said main axis 39 and orthogonally to the two guiding faces.
  • Each blade 23 can thus be pivoted between two end angular positions.
  • the angle between a longitudinal axis of a blade 23 and a diametral plane of the stationary blade assembly 21 passing through the pivoting axis of this blade 23 is the same for all the blades 23.
  • a modification of the angular position of a blade 23 results in a modification of the geometric characteristics of each channel delimited by this blade 23, and consequently of the fluid passage.
  • a first end angular position of the blades 23 defines a minimum opening of the fluid passage of the stationary blade assembly 21.
  • the minimum opening preferably allows the fluid passage of the stationary blade assembly 21 to be blocked.
  • a second end angular position defines a maximum opening of the fluid passage of the stationary blade assembly 21.
  • the fluid passage of the stationary blade assembly 21 thus has a variable cross-section.
  • the guide stator device 20 with a stationary blade assembly 21 having a variable cross-section thus allows the adjustment of a flow rate and a direction of a flow of fluid passing through said fluid passage depending upon an operating state of the turbomachine.
  • Each blade 23 comprises a transmission shaft 38 extending along said pivoting axis of this blade 23.
  • a ring 22 of the stationary blade assembly 21 comprises a plurality of bearings for receiving the transmission shafts 38 of the blades 23.
  • Each transmission shaft 38 passes through a bearing of said ring 22 of the stationary blade assembly 21.
  • each guide stator device 20 comprises a mechanism 24 for controlling the angular position of the blades 23 of the stationary blade assembly 21.
  • the control mechanism 24 is thus able to cause the blades 23 of the stationary blade assembly 21 to pivot.
  • control mechanism 24 comprises a plurality of levers 25 arranged about the main axis 39 and a control ring 33 coaxial with respect to the rings 22 of the stationary blade assembly 21.
  • the control ring 33 extends in a plane, named main plane, in parallel with the guiding faces of the rings 22 of the stationary blade assembly 21.
  • Each lever 25 is rotationally coupled with a blade 23 of the stationary blade assembly 21, each blade 23 of the stationary blade assembly 21 being rotationally coupled with a lever 25 of said plurality of levers 25. Therefore, each lever 25 allows the blade 23 to which it is coupled to be rotationally driven so as to modify its angular position.
  • each lever 25 of said plurality of levers 25 co-operates, in rotation, with said control ring 33. Therefore, the act of rotationally driving about the main axis 39 of said control ring 33 allows each lever 25 to be rotationally driven about the pivoting axis of the blade 23 to which it is connected.
  • each lever is driven by said control ring.
  • the control ring can be driven by an arm, named driving arm, (not shown) which can be coupled to the two rings of the blade assembly.
  • said driving arm is driven by a motor (not shown) for controlling the blades of the blade assembly.
  • each lever 25 extends longitudinally between a proximal end 28 and a distal end, named head 29. Furthermore, as shown in figures 1 and 2 , in the fluid guiding stator device 20, each lever 25 extends longitudinally orthogonally to said main axis 39.
  • the proximal end 28 of each lever 25 is adapted to be rotationally coupled with a blade 23 of the stationary blade assembly 21, in particular with the transmission shaft 38 of this blade 23.
  • the proximal end 28 of each lever 25 comprises a through-orifice 37 having at least one rotationally cylindrical section extending along said pivoting axis of the blade 23 to which the lever 25 is coupled.
  • the orifice 37 of each lever 25 is coupled to an end of a transmission shaft 38 of a blade 23, the transmission shaft 38 passing through the bearings of the ring 22 of the stationary blade assembly 21 facing the control ring 33 as far as this coupled end. Therefore, each blade 23 is rotationally guided by a lever 25 via the transmission shaft 38 of this blade 23.
  • the orifice 37 of each lever 25 has a plurality of ribs allowing the coupling between the transmission shaft 38 and the orifice 37 of the lever 25 to be facilitated.
  • the coupling between the transmission shaft 38 and the orifice 37 of the lever can be done by riveting or by welding for example.
  • the head 29 of each lever 25 is adapted to co-operate, in rotation, with the control ring 33.
  • the control ring 33 has a plurality of radial recesses, named guiding recesses 34, extending away from the main axis 39 and arranged about said main axis 39.
  • the control ring 33 thus has a wavy shape.
  • Each guiding recess 34 is adapted to receive a head 29 of the lever 25.
  • the head 29 of each lever 25 has a support portion, named radial support 32, forming a radial stop against the guiding recess 34 receiving the head 29 of this lever 25. Therefore, the heads 29 of the levers 25 make it possible to prevent any movement of the control ring 33 towards said main axis 39.
  • each lever is thus a radial holding lever.
  • the contact between the radial supports 32 and the guiding recesses 34 of the control ring 33 allows the levers 25 to be able to be rotationally driven when the control ring 33 is rotationally driven.
  • each guiding recess 34 comprises a base 35 formed by a surface, named drive surface, of the recess 34 extending at least substantially in a plane in parallel with the main axis 39 and with a tangent to the control ring 33 at this guiding recess 34.
  • each radial support 32 has a convex shape such that only one point of said radial support 32 is in contact with said drive surface such that each lever 25 of said plurality of levers 25 can roll, without sliding, against said control ring 33.
  • the levers 25 can be displaced by the control ring 33, reducing the stresses exerted on these levers 25 by the control ring 33 so as to improve the control of the angular position of the blades 23 of the stationary blade assembly 21 and to reduce the risk of breakdown (breaking of the levers 25).
  • rotationally displacing the control ring 33 about the main axis 39 allows the set of levers 25 of the control mechanism 24 to be simultaneously rotationally driven so as to modify the angular position of the set of blades 23 of the stationary blade assembly 21.
  • control ring 33 is arranged so as to form stops delimiting the end rotational positions of said levers 25.
  • Said stops 36 delimiting end rotational positions of the lever 25 are formed on sections of the control ring 33 between said guiding recesses 34.
  • the stops 36 of the control ring 33 delimiting the end rotational positions of the lever 25 are arranged at least substantially over a single theoretical circular line of diameter d1.
  • the base 35 of each guiding recess 34 in the control ring 33 is arranged at least substantially over a single theoretical circular line of diameter d2 greater than d1.
  • each head 29 of the lever 25 comprises a support portion, named axial support 31, forming an axial stop along the main axis 39 against the control ring 33. Therefore, in the embodiments illustrated in figures 1 and 2 each lever is an axial holding lever.
  • said head 29 of a lever 25 has a section protruding from said radial support 32. Said protruding section has a distal ridge forming said axial support 31.
  • levers 25, named internal levers 25a, of said plurality of levers 25 are arranged in the fluid guiding stator device 20 so as to prevent any axial movement of the control ring 33 towards the stationary blade assembly 21 along the main axis 39.
  • levers 25 named external levers 25b, of said plurality of levers 25 are arranged in the fluid guiding stator device 20 so as to prevent any axial movement of the control ring 33 in a direction away from the stationary blade assembly 21 along the main axis 39.
  • the internal levers 25a and the external levers 25b are arranged alternately about the main axis 39. This arrangement of internal levers 25a and external levers 25b allows the control ring to be held axially in a uniform manner.
  • each internal lever 25a extends from a first side with respect to said main plane and forms a first axial stop against the control ring 33.
  • the axial support 31 of each external lever 25b extends from a second side, opposite said first side, with respect to said main plane and forms a second axial stop against the control ring 33.
  • the levers 25 of said plurality of levers 25 by themselves make it possible to support and hold the control ring 33.
  • each lever 25 comprises an intermediate section 30 connecting said proximal end 28 of the lever 25 and said head 29 of the lever 25.
  • This intermediate section 30 has an offset forming a difference in level between said head 29 of the lever 25 and said proximal end 28 of the lever 25.
  • This difference in level allows the control ring 33 to be raised with respect to the stationary blade assembly 21 such that the section of the head 29 of the internal levers 25a supporting said axial support 31 can be arranged between the stationary blade assembly 21 and the control ring 33.
  • the difference in level allows the head 29 of each lever 25 to be raised with respect to the proximal end 28 of each lever 25 so as to avoid the head 29 of this lever 25 being in contact with the ring 22 of the stationary blade assembly 21 facing the control ring 33.
  • said intermediate portion 30 of a lever 25 is placed against a stop 36 of the control ring 33 delimiting an end rotational position when this lever 25 has reached this end rotational position.
  • the section of the head 29 of each lever 25 protruding from said radial support of this lever 25 comprises a recess between said radial support and said axial support so as to reduce the contact surface between the control ring 33 and the head 29 of the lever 25.
  • the recesses of the heads 29 of the lever 25 thus allow a reduction in the friction between the levers 25 and the control ring 33 when the control ring 33 is rotationally driven about said main axis 39.
  • control ring 33 Since the control ring 33 is held axially only by the levers 25 of the control mechanism 24, it is not necessary to provide any additional part in the guide stator device 20 to perform this technical function.
  • the axial holding arrangement allows the design and manufacturing options for the control ring 33 to be increased. Therefore, in the embodiment illustrated in figure 1 , the control ring 33 is a metal ring obtained by a die-cutting process from a metal plate. As a variant, in the embodiment illustrated in figure 2 , the control ring 33 is a rigid metal wire bent by plastic deformation to form a ring having said guiding recesses 34.
  • levers 25 of the control mechanism 24 can be obtained by lost-wax moulding, injection moulding of metal powder, stamping, or aditive manufacturing or by cold-forming.
  • a fluid guiding stator device 20 comprising a stationary blade assembly 21 and a mechanism 24 for controlling the angular position of the blades 23 of this stationary blade assembly 21,
  • the control mechanism 24 comprises a plurality of levers 25 rotationally coupled to the blades 23 of the stationary blade assembly 21 and a control ring 33 co-operating, in rotation, with said plurality of levers 25, the control ring 33 being axially held exclusively by at least two levers 25 of said plurality of levers 25.
  • the control mechanism 24 of such a guide stator device 20 is simple, reliable and inexpensive.
  • a lever 25 can be arranged to form two mutually opposing axial stops against the control ring 33 so as to prevent any axial movement of the control ring 33.
  • a fluid guiding stator device 20 in accordance with the invention is adapted to guide an incompressible fluid (liquid) or a compressible fluid (air, gas, vapours ).
  • a fluid guiding stator device 20 can be integrated into a turbomachine.
  • a fluid guiding stator device 20 can be used as a distributor for a turbine or as a diffusor for a compressor.

Landscapes

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

Claims (14)

  1. Fluidführungs-Statorvorrichtung für eine Strömungsmaschine, umfassend:
    - eine als stationäre Blattanordnung (21) bezeichnete Blattanordnung (21), welche umfasst:
    o zwei Ringe (22), die entlang einer als Hauptachse (39) bezeichneten Achse koaxial sind,
    o eine Vielzahl von Blättern (23), die zwischen den koaxialen Ringen (22) der stationären Blattanordnung (21) gehalten werden und um die Hauptachse (39) angeordnet sind, wobei jedes Blatt (23) so montiert ist, dass es in Bezug auf die zwei Ringe (22) der stationären Blattanordnung (21) schwenkt, wobei die Vielzahl von Blättern mindestens ein als Abtriebsblatt bezeichnetes Blatt umfasst,
    - einen Mechanismus (24), um die Winkelstellung der Blätter (23) der stationären Blattanordnung (21) zu steuern, welcher umfasst:
    ∘ eine Vielzahl von Hebeln (25), die mindestens einen als Antriebshebel bezeichneten Hebel einschließt, wobei jeder Antriebshebel mit einem einzelnen Abtriebsblatt drehgekoppelt ist und jedes Abtriebsblatt mit einem einzelnen Antriebshebel gekoppelt ist,
    ∘ einen Ring (33), um die Winkelstellung der Blätter (23) der stationären Blattanordnung (21) zu steuern, der mit den zwei Ringen (22) der stationären Blattanordnung (21) koaxial ist und in Bezug auf die zwei Ringe (22) der stationären Blattanordnung (21) um die Hauptachse (39) drehend angetrieben werden kann, wobei der Steuerring (33) bei der Drehung mit jedem Antriebshebel zusammenwirkt,
    ∘ wobei mindestens zwei als axiale Haltehebel bezeichnete Hebel aus der Vielzahl von Hebeln (25) so eingerichtet sind, dass sie entlang der Hauptachse (39) axiale Anschläge für den Steuerring (33) bilden, derart, dass der Steuerring (33) axial entlang der Hauptachse (39) ausschließlich von den axialen Haltehebeln gehalten wird,
    ∘ mindestens zwei als radiale Haltehebel bezeichnete Hebel (25) aus der Vielzahl von Hebeln (25) so eingerichtet sind, dass sie radiale Anschläge für den Steuerring (33) bilden, wobei einige radiale Haltehebel ebenfalls axiale Haltehebel sind,
    wobei jeder Hebel aus der Vielzahl von Hebeln ein proximales Ende (28), das mit einem Blatt (23) aus der Vielzahl von Blättern (23) drehgekoppelt ist, und ein als Kopf (29) bezeichnetes distales Ende aufweist, wobei der Kopf (29) jedes radialen Haltehebels, der ebenfalls ein axialer Haltehebel ist, umfasst:
    ∘ einen als axiale Auflage (31) bezeichneten Auflageabschnitt, der entlang der Hauptachse (39) einen axialen Anschlag für den Steuerring (33) bildet,
    ∘ einen als radiale Auflage (32) bezeichneten Auflageabschnitt, der einen radialen Anschlag für den Steuerring (33) bildet,
    wobei der Steuerring als Führungsausschnitte (34) bezeichnete radiale Ausschnitte aufweist, die um die Hauptachse eingerichtet sind, wobei jeder Führungsausschnitt dazu geeignet ist, einen Kopf eines Hebels aus der Vielzahl von Hebeln aufzunehmen,
    wobei jeder Führungsausschnitt eine als Antriebsfläche bezeichnete Fläche aufweist, die sich mit einer radialen Auflage in Berührung befindet, dadurch gekennzeichnet, dass der Kopf (29) jedes radialen Haltehebels, der ebenfalls ein axialer Haltehebel ist, ein Teilstück aufweist, das radial von der radialen Auflage (32), die eine Antriebsfläche berührt, vorspringt, wobei das vorspringende Teilstück eine distale Kante aufweist, die die axiale Auflage (31) bildet.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass mindestens ein als innenliegender Hebel (25a) bezeichneter axialer Haltehebel so eingerichtet ist, dass er an der Hauptachse (39) in einer ersten axialen Richtung einen axialen Anschlag für den Steuerring (33) bildet, und dadurch, dass mindestens ein anderer, als außenliegender Hebel (25b) bezeichneter axialer Haltehebel so eingerichtet ist, dass er an der Hauptachse (39) in einer der ersten axialen Richtung entgegengesetzten zweiten axialen Richtung einen axialen Anschlag für den Steuerring (33) bildet.
  3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass sich der Steuerring (33) in einer Hauptebene erstreckt, und dadurch, dass jeder axiale Haltehebel einen als axiale Auflage (31) bezeichneten Auflageabschnitt umfasst, wobei sich die axiale Auflage (31) jedes innenliegenden Hebels (25a) in Bezug auf die Hauptebene von einer ersten Seite erstreckt und einen ersten axialen Anschlag für den Steuerring (33) bildet, und sich die axiale Auflage (31) jedes außenliegenden Hebels (25b) in Bezug auf die Hauptebene von einer der ersten Seite gegenüberliegenden zweiten Seite erstreckt und einen zweiten axialen Anschlag für den Steuerring (33) bildet.
  4. Vorrichtung nach einem der Ansprüche 2 oder 3, dadurch gekennzeichnet, dass sie innenliegende Hebel (25a) und außenliegende Hebel (25b) aufweist, die im Wechsel um die Hauptachse (39) eingerichtet sind.
  5. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass jeder Hebel aus der Vielzahl von Hebeln ein proximales Ende (28), das mit einem Blatt (23) aus der Vielzahl von Blättern (23) drehgekoppelt ist, und ein als Kopf (29) bezeichnetes distales Ende aufweist, wobei der Kopf (29) jedes axialen Haltehebels die axiale Auflage (31) dieses Hebels bildet.
  6. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass jeder radiale Haltehebel einen als radiale Auflage (32) bezeichneten Auflageabschnitt umfasst, der einen radialen Anschlag für den Steuerring (33) bildet, um jede Bewegung des Steuerrings (33) in Richtung der Hauptachse (39) zu verhindern.
  7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass der Kopf (29) jedes radialen Haltehebels so eingerichtet ist, dass er die radiale Auflage (32) dieses Hebels bildet.
  8. Vorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass der Steuerring (33) so eingerichtet ist, dass er Anschläge bildet, die Dreh-Endstellungen der Hebel (25) begrenzen.
  9. Vorrichtung nach einem der Ansprüche 6 bis 8, dadurch gekennzeichnet, dass die radiale Auflage (32) jedes radialen Haltehebels und der Steuerring (33) zusammenpassende Formen aufweisen, die es der radialen Auflage (32) jedes radialen Haltehebels ermöglichen können, ohne Rutsch am Steuerring (33) zu rollen.
  10. Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, dass die radiale Auflage (32) jedes radialen Haltehebels eine konvexe Form aufweist, und dadurch, dass sich jede Führungsausschnitt- (34) Antriebsfläche, die sich mit dieser radialen Auflage (32) in Berührung befindet, mindestens im Wesentlichen in einer Ebene parallel zur Hauptachse (39) und zu einer Tangente am Steuerring (33) an diesem Führungsausschnitt (34) erstreckt.
  11. Vorrichtung nach einem der Ansprüche 6 bis 10, dadurch gekennzeichnet, dass jeder radiale Haltehebel gleichermaßen ein axialer Haltehebel ist, und dadurch, dass der Kopf (29) jedes radialen Haltehebels einen Ausschnitt zwischen der axialen Auflage (31) und der radialen Auflage (32) dieses Hebels (25) aufweist.
  12. Strömungsmaschine, umfassend
    - einen Stator,
    - mindestens ein Rad, das so montiert ist, dass es in Bezug auf den Stator dreht,
    - mindestens eine Fluidführungsvorrichtung (20), die fest am Stator angebracht ist,
    dadurch gekennzeichnet, dass es sich bei mindestens einer Fluidführungs-Statorvorrichtung um eine Fluidführungs-Statorvorrichtung nach einem der Ansprüche 1 bis 11 handelt.
  13. Turbinenverteiler, dadurch gekennzeichnet, dass er von einer Fluidführungs-Statorvorrichtung nach einem der Ansprüche 1 bis 11 gebildet wird.
  14. Verdichterdiffusor, dadurch gekennzeichnet, dass er von einer Fluidführungs-Statorvorrichtung nach einem der Ansprüche 1 bis 11 gebildet wird.
EP17208572.2A 2017-12-19 2017-12-19 Stützung eines turbomaschinenverstellrings durch schaufel-hebelarme Active EP3502483B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP17208572.2A EP3502483B1 (de) 2017-12-19 2017-12-19 Stützung eines turbomaschinenverstellrings durch schaufel-hebelarme

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17208572.2A EP3502483B1 (de) 2017-12-19 2017-12-19 Stützung eines turbomaschinenverstellrings durch schaufel-hebelarme

Publications (2)

Publication Number Publication Date
EP3502483A1 EP3502483A1 (de) 2019-06-26
EP3502483B1 true EP3502483B1 (de) 2020-09-02

Family

ID=60674029

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17208572.2A Active EP3502483B1 (de) 2017-12-19 2017-12-19 Stützung eines turbomaschinenverstellrings durch schaufel-hebelarme

Country Status (1)

Country Link
EP (1) EP3502483B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4191029A1 (de) * 2021-12-01 2023-06-07 Garrett Transportation I Inc. Turbolader mit turbinendüse mit variablen leitschaufeln mit anordnung zum verriegeln der leitschaufeln in vollständig geöffneter stellung

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020128922A1 (de) 2020-11-03 2022-05-05 Borgwarner Inc. Verstellmechanismus mit lärmreduzierenden merkmalen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10104176A1 (de) 2001-01-24 2002-07-25 Mahle Gmbh Leitschaufelverstelleinrichtung für einen Turbolader
EP1357255B1 (de) * 2002-04-26 2007-04-11 BorgWarner Inc. Turbokompressor mit verstellbaren Leitschaufeln
DE102007022356A1 (de) * 2007-05-12 2008-11-13 Mahle International Gmbh Ladeeinrichtung
US9017017B2 (en) 2009-04-10 2015-04-28 Honeywell Internatonal Inc. Variable-vane assembly having fixed guide pins for unison ring

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4191029A1 (de) * 2021-12-01 2023-06-07 Garrett Transportation I Inc. Turbolader mit turbinendüse mit variablen leitschaufeln mit anordnung zum verriegeln der leitschaufeln in vollständig geöffneter stellung

Also Published As

Publication number Publication date
EP3502483A1 (de) 2019-06-26

Similar Documents

Publication Publication Date Title
EP3502483B1 (de) Stützung eines turbomaschinenverstellrings durch schaufel-hebelarme
US8992164B2 (en) Turbocharger
EP2136048B1 (de) Mit verstellbarem düsenmechanismus ausgestatteter abgasturbolader der bauart von variabler kapazität
CN101371008B (zh) 可调节的导向装置
EP2821616B1 (de) Turbolader mit verstellbarer leitschaufelgeometrie
EP3045677B1 (de) Turbolader mit ringförmigem drehumleitungsventil
JP5129882B1 (ja) 可変ノズル機構を備えた可変容量型排気ターボ過給機
JP2009531587A (ja) ターボチャージャ
JP5989905B2 (ja) タービンのための可変ガイド機構、排気ガスターボチャージャーのためのタービン、及び排気ガスターボチャージャー
US10801405B2 (en) Variable displacement turbocharger
EP2752583A1 (de) Fluidmaschine mit axialer strömung und ansteuerungsvorrichtung dafür mit einer veränderlichen stationären schaufel
CN105811656B (zh) 电机
US8992166B2 (en) Turbocharger
JPS597708A (ja) 軸流機械における静翼取付角可変装置
KR101174438B1 (ko) 터보차져의 가변노즐장치
JP3860993B2 (ja) 可変容量タービンのアクチュエータ装置
EP3412889B1 (de) Turbolader
EP3502424B1 (de) Verfahren zur herstellung eines ringes zur winkelpositionssteuerung von schaufeln einer stationären turbomaschinenschaufelanordnung
EP1031703A2 (de) Betätigungsvorrichtungen für Leitschaufeln
CN214424771U (zh) 连动环支撑机构、静叶调节机构和压气机
CN112912635A (zh) 推力箔轴承
EP3763924B1 (de) Turbomaschine
CN114991881A (zh) 静叶调节机构及包含其的发动机
CN108884754B (zh) 叶轮、涡轮增压器及它们中的气体流动场的形成方法
EP3728812B1 (de) Wastegate für turbine

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

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL 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 RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20191119

RBV Designated contracting states (corrected)

Designated state(s): AL 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 RS SE SI SK SM TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20200123

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL 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 RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1309132

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200915

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602017022722

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200902

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200902

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200902

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201202

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201202

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201203

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200902

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20200902

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1309132

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200902

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200902

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200902

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200902

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200902

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200902

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210104

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200902

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200902

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210102

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200902

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200902

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200902

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602017022722

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200902

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

26N No opposition filed

Effective date: 20210603

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200902

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200902

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200902

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20201231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200902

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20201219

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20201219

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20201231

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20201231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200902

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200902

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200902

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200902

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20201231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200923

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20231229

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20231227

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20231229

Year of fee payment: 7