EP2873809B1 - Rotor d'une turbomachine - Google Patents

Rotor d'une turbomachine Download PDF

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Publication number
EP2873809B1
EP2873809B1 EP14193326.7A EP14193326A EP2873809B1 EP 2873809 B1 EP2873809 B1 EP 2873809B1 EP 14193326 A EP14193326 A EP 14193326A EP 2873809 B1 EP2873809 B1 EP 2873809B1
Authority
EP
European Patent Office
Prior art keywords
circumferential
rotor
blade root
circumferential groove
groove
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.)
Not-in-force
Application number
EP14193326.7A
Other languages
German (de)
English (en)
Other versions
EP2873809A1 (fr
Inventor
Alexander Klötzer
Dieter Hofmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MTU Aero Engines AG
Original Assignee
MTU Aero Engines AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MTU Aero Engines AG filed Critical MTU Aero Engines AG
Publication of EP2873809A1 publication Critical patent/EP2873809A1/fr
Application granted granted Critical
Publication of EP2873809B1 publication Critical patent/EP2873809B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
    • F01D5/3023—Fixing blades to rotors; Blade roots ; Blade spacers of radial insertion type, e.g. in individual recesses
    • F01D5/303—Fixing blades to rotors; Blade roots ; Blade spacers of radial insertion type, e.g. in individual recesses in a circumferential slot
    • F01D5/3038—Fixing blades to rotors; Blade roots ; Blade spacers of radial insertion type, e.g. in individual recesses in a circumferential slot the slot having inwardly directed abutment faces on both sides
    • 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
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
    • F01D5/32—Locking, e.g. by final locking blades or keys

Definitions

  • the invention relates to a rotor of a turbomachine according to the preamble of claim l.
  • Such a rotor is from the document US 7,708,529 B2 known.
  • the rotor has in a rotor disk a C-shaped radially outwardly opened circumferential groove with recesses on the legs of the C-shaped circumferential groove. Through these recesses, the blade feet are pivoted. Furthermore, this rotor has an annular fuse which is fastened between a lower side of the inner shroud of the blade and on a radially outer surface of the rotor disk in order to prevent the blades from swinging out of the circumferential groove.
  • EP 2 368 015 B1 discloses a rotor with a disc having a circumferential groove. In this circumferential groove, a blade root is introduced by the blade root is moved along a trajectory. A rotation does not take place.
  • EP 2 602 435 A2 discloses a rotor with a disc having a circumferential groove. In this circumferential groove a blade root is screwed at the opening. So that the blade can not tilt away again, the blade is moved further from the opening in the groove.
  • the left end of the inner cover tape comes to rest on the surface. Although a securing element between the blades is provided, however, the securing element does not rest against the underside of the blade root.
  • US 4,280,795 discloses a sealing device between the blades.
  • the T-shaped sealing device is disposed below the inner cover tape.
  • a wire is arranged, which runs below the blade root. The wire serves to connect the T-shaped sealing device together.
  • DE 2 237 348 discloses a rotor with a disc having a circumferential groove.
  • the objective of the invention is to present a rotor which allows immediate and automatic securing of the blade after the blade has been brought into position.
  • the invention relates to a rotor of a turbomachine.
  • the rotor comprises at least one blade, which has an airfoil and a blade root, and at least one rotor base body, in particular a disk, which has an outwardly open circumferential groove for receiving the blade root.
  • the circumferential groove and the blade root are shaped such that the blade root can be secured in the circumferential groove by rotating the blade about an axis.
  • the axis runs parallel to a perpendicular of the axis of rotation of the rotation base body and / or the axis runs radially to the rotation base body.
  • the rotor further has in the circumferential groove on a securing element which bears against the underside of the blade root.
  • the securing element is a safety wire.
  • the securing element may in particular be designed as a c-shaped securing wire and in the non-installed state have a slightly larger radius than in the installed state.
  • the fuse wire is biased in the circumferential groove and can be supported on all blades. The fuse wire thus undergoes a centering and does not touch the base of the circumferential groove.
  • the securing element may be formed as a sheet metal.
  • the blade root has a securing element complementary shaped guide element, in particular a guide groove on.
  • the securing element does not necessarily have to be arranged centrally in the blade root.
  • the guide groove may be formed in the lower surface of the blade root or the guide groove may be formed laterally in the blade root.
  • the blade in particular between the blade and the blade root, on a transversely extending to the blade inner shroud, so that when installed only a first ridge of the inner shroud forms a gap together with the disc.
  • the distance of the gap may be zero, so that the first web touches the disc, in particular the downstream leg of the disc.
  • the inner shroud has an upstream web and a downstream web.
  • the downstream land is the first land. In the operation of the engine (stationary or transient gas turbine), the flow pressure then presses the individual blade on this first web and thus ensures the correct positioning of the blades in the axial direction.
  • the constriction of the circumferential groove is so large that when turning the blades about the axis of the blade root is inserted into the circumferential groove and / or the bottleneck of the legs is so small that in the installed state, the bearing surfaces of the blade root on the bearing surfaces of the legs are.
  • the individual blades do not need to be threaded over a passage introduced into the channel and then have to be displaced in the circumferential direction along the circumferential groove to their position, in the worst case even to the diametrically opposite position to the passage.
  • the blades can be introduced at any point of the circumferential groove. This has the advantage that assembly time can be saved. In addition, no passage is needed which weakens the disk material and constitutes a potential break point.
  • the constriction of the circumferential groove is greater than a depth of the blade root.
  • the throat of the circumferential groove is smaller than the width of the blade root.
  • the width of the blade root is greater than the depth of the blade root, wherein the width in the installed state of the blade reflects the expansion of the blade root in the axial direction of the rotor body and the depth reflects the expansion of the blade root in the radial direction of the rotor body.
  • the blades can be introduced into the circumferential groove along a radial axis, and then the blade is secured in the groove by rotation about the radial axis.
  • the bottleneck of the circumferential groove can turn out smaller and surrounding the peripheral groove material may be less, so that the rotor can be slimmer and thus easier to design.
  • the rotor comprises a circumferential securing, which has a head region with a receptacle for a part of at least one blade root having. Furthermore, the blade root has a complementarily shaped overhang for receiving.
  • the circumferential securing is positively connected to the adjacent blade. This prevents that the blades can move within the circumferential groove.
  • two adjacent blade roots have complementary shaped overhangs, so that they are arranged in the receptacle of the circumferential securing.
  • the shape of the support surface of the recording can be arbitrary.
  • the shape of the support surface may be curved, flat, roof-shaped, spherical or cylindrical.
  • the rotor comprises a circumferential securing with a foot region which rests on the base of the circumferential groove.
  • the circumferential securing can be fixed in the circumferential groove via different types of fastening.
  • a screw eg grub screw
  • sheet metal and / or wire elements can fix the perimeter lock to the window.
  • the rotor base body has at least one recess and / or an increase in the base of the circumferential groove. Furthermore, the circumferential securing has a foot region, which is arranged in the second recess.
  • the recess in particular the second recess, is butterfly-shaped.
  • the circumferential securing is displaced radially until the foot area of the circumferential securing device is inserted into this recess.
  • the recess may also have at least one stop, which extends transversely to the circumferential groove. The circumferential securing can only be turned in the circumferential groove until the foot area reaches the stop. The stop ensures that the width of the circumferential securing runs exactly perpendicular to the circumferential groove, as over-tightening can be avoided.
  • the stop provides a positive circumferential securing with the disc, ie the disc with blades, circumferential securing and securing element can not rotate in the circumferential direction in itself.
  • the circumferential securing preferably has no opening on. After the holder and the fuse element has been inserted into the corresponding opening, the circumferential securing serves as a stop for the securing element, so that it can no longer leave its position.
  • the circumferential securing can also have a bag or passage opening in order to receive and fix the securing element ends.
  • An elevation may be formed on the base of the circumferential groove and project radially outward so as to be integral with the disc.
  • the width of the head region of the circumferential securing is greater than the constriction of the legs.
  • the height of the circumferential securing is at least as large as the groove height.
  • the rotor comprises at least one groove transverse to the circumferential groove for receiving the circumferential securing.
  • the height of the circumferential securing is smaller than the groove height.
  • At least one side wall, in particular a leg, of the circumferential groove has a, in particular third, receptacle for the circumferential securing.
  • this third recording can be formed circular segment.
  • the circumferential securing can be screwed into the circumferential groove.
  • FIG. 1 shows an oblique view of a part of a rotor with a rotor body 2, with some built-in blades 4, 6 and 8 and a circumferential securing 10.
  • the rotor body 2 may be a disc or a disc ring.
  • the disc 2 has an in particular C-shaped circumferential groove 12, in which the blade roots 54 of the first blade 4, the blade roots 55 of the second blade 6 and the blade roots 58 of the third blade 8 are arranged.
  • the circumferential groove 12 has a base 14 and at the two ends of the base 14 each have a leg 16 and 18 (see also FIGS.
  • the downstream leg 16 (or first leg) is larger in radial dimension as compared with the upstream leg 18 (hereinafter referred to as the second leg).
  • the bucket 4 has an inner shroud 24 extending in the axial direction (the sheave 2) between a radially outwardly extending airfoil 20 and a radially inwardly extending blade root 22.
  • the inner shroud 24 has a downstream web 26 (hereinafter referred to as the first web) ) and an upstream web 28 (in Hereafter referred to as the second land).
  • the underside 30 of the first web 26 is located on the upper side 32 of the first leg 16.
  • the circumferential groove 12 also has a second radially inwardly extending groove 34 which is recessed in the two legs 16 and 18. In these two second grooves 34, the circumferential securing 10 is arranged.
  • FIGS. 2 and 3 is an oblique view of some blades with a circumferential securing 10 and a bracket or wire holder 36 shown.
  • the disc 2 not mitabge willing.
  • FIG. 3 the blades between the circumferential securing 10 and the wire holder 36 are not shown for better understanding.
  • the circumferential securing device 10 has a substantially rectangular upper head region 38 and an essentially likewise rectangular foot region 40.
  • the height h U of the circumferential securing extends 10.
  • the depth t U of the circumferential securing extends 10.
  • the head portion 38 of the circumferential securing 10 extends in the width b U.
  • the circumferential securing 10 has in the head area 38 a - here arcuate - first receptacle 42.
  • the wire holder 36 has a head 44 and a substantially rectangular foot 46.
  • the wire holder 36 has in the head 44 a - here arcuate - second receptacle 48.
  • the two receptacles 42 and 48 are preferably formed identically.
  • an opening 50 or bore is embedded. Through this opening 50, a securing element or securing wire 51 runs.
  • the first blade 4 has a first blade root 54, in which the circumferential surface 10 facing end face 52 has a first receptacle 42 complementary shaped overhang 56.
  • the end faces of the second blade roots 55 of the two second blades 6 are planar.
  • the third blade 8 has a third Blade root 58, in which the wire holder 36 facing end face 52 has a second receptacle 48 complementarily shaped overhang 60.
  • FIG. 4A is a section across the circumferential groove 10 of the disc 2 reproduced, the second blade 6 is shown in the installed state.
  • FIG. 4B is a section through the circumferential groove 10 of the disc 2 reproduced, wherein the second blade 6 is shown in the tilted state, to be subsequently rotated about the parallel axis A T , said axis A T is parallel to the vertical axis of the rotor.
  • S E The width of the circumferential groove 10 at the narrowest point between the legs 16 and 18 is referred to as S E.
  • the flow flows from right to left and is indicated by the flow direction 62.
  • the lower region of the second substantially dovetail-shaped blade root 55 of the second blade 6 has a third groove 64 in order to receive the securing wire 51.
  • the other blade roots 54 and 58 may be similarly configured in this regard and may have a shaped groove similar to the third groove 64 in the lower region. It should be noted that the opening 50 of the wire holder 36 is aligned with the third groove 64.
  • the bottom 30 of the first web 26 is located, as in FIG. 4A
  • the oblique bearing surfaces 66 and 68 of the blade root 55 are located on the inclined bearing surfaces 70 and 72 of the circumferential groove 10.
  • This constriction S E between the legs 16 and 18 is so large that when pivoting the Shovels 4, 6 or 8, for example, about the parallel axis A T of the blade root 55 (as well as the other blade roots 54 and 58) is inserted into the circumferential groove 10 and the constriction S E between the legs 16 and 18 is so small that in installed state, the bearing surfaces 66 and 68 of the blade root 55 on the bearing surfaces 70 and 72 of the legs 16 and 18 abut.
  • the second blade 6 (also the other blades) may be rotated about the radial axis A r to be secured in the circumferential groove 12.
  • this second blade 6 is moved radially in advance along the radial axis A r , wherein the depth T of the blade 6 is aligned parallel to the constriction S E.
  • the second blade 6 Only when the blade root 55 has been sufficiently far inserted into the circumferential groove 12, the second blade 6 can be rotated about the radial axis A r until the locking wire 51 snaps into the third groove 64 (guide). Then, the width B of the second blade 6 is oriented substantially parallel to the constriction S E.
  • a certain number of blades 4, 6 and 8 with a forming element here with the fuse wire 51 and one or more circumferential fuse 10 and one or more wire holders 36 mounted.
  • the number of fuse elements used for this purpose 10 and 36 and fuse wires 51 is variable and determines the pitch and the number of required second radial grooves 34 in the disc 2.
  • the circumferential fuses 10 are used after completion of the entire assembly as a stop for the fuse wire 51. This is thus secured positively in the circumferential direction.
  • the wire holders 36 are held in the radial direction by dovetail contact surfaces 70 and 72 in the disc 2.
  • the securing wire 51 is in turn prevented from falling out by the wire holders 36, since the wire holders 36 rest against the disc 2 on the base 14 in the direction of the axis of rotation.
  • the elasticity of the safety wire 51 ensures that the blades can be tipped by slightly pushing the safety wire 51 (see FIG Figures 4B and 5 ).
  • the first blade 4 of the fuse wire 51 gives way to the side and radially downwards, as in FIG. 5
  • the securing wire 51 elastically springs back to its neutral position, so that this securing wire 51 rests in the third groove 64.
  • the blades 4, 6 and 8 are held in the dovetail guide (circumferential groove 12) of the disc 2 and can not tilt when the rotor is stopped.
  • the circumferential securing element 10 is held in the radial direction of the blade 4 after installation.
  • the wire holders 36 are held according to the invention by a dovetail approach in the circumferential groove 12.
  • the opening 50 of the wire holder 36 is dimensioned so large that the fuse wire 51 is not applied to this wire holder 36 under load.
  • the circumferential fuses 10 can be mounted by radial insertion into the corresponding grooves in the disc 2.
  • the wire holders 36 are screwed or tilted into the circumferential groove 12 of the disc 2.
  • the fuse wire 51 can be mounted. This safety wire 51 is inserted through the holes or holes 50 of the wire holders 36.
  • the blades 4, 6 and 8 are mounted by tilting or by turning.
  • the blades 4 and 8 resting on the securing parts must first be pivoted into the circumferential groove and pushed to their target position in the circumferential direction. Thereafter, the remaining blades 6 can be mounted. Dismantling is carried out analogously in reverse order.
  • FIG. 6 is a section through the circumferential groove 12 of the disc 2 reproduced, wherein the wire holder 10 in the head 44, the second receptacle 48 has. Therein, the overhang 56 of the first blade root 54 of the first blade 4 is located
  • FIG. 6 Two embodiments of the foot 46 of the wire holders 36 are shown.
  • the first embodiment of the foot 46 extends to the base 14 of the circumferential groove 12.
  • radially inwardly extending first substantially butterfly-shaped recess 69 is recessed (see also FIG. 5 , shown in dashed lines). In this first recess 69, the extended portion 71 of the foot 46 is arranged (hatched area).
  • FIG. 7 is a plan view of the circumferential groove 12 in the radial direction on the first recess 69 and a second recess 78 (see below) reproduced.
  • the circumferential groove 12 is shown.
  • the circumferential groove 12 is bounded by the first leg 16.
  • the circumferential groove 12 is bounded by the second leg 18.
  • the extended portion 71 is hatched once and shown once in dashed lines.
  • the wire holder 36 can be rotated about the rotation axis 70 in a clockwise direction until the extended portion 71 abuts the perpendicular to the circumferential groove 12 extending stop 72 of the first recess 69.
  • FIG. 8 is a section through the circumferential groove 12 of the disc 2 shown, wherein two embodiments of the circumferential securing 10 are shown.
  • the first embodiment is shown on the right side.
  • the circumferential securing 10 corresponds to the one shown in FIG. This is inserted radially from outside to inside in the second grooves 34.
  • the second grooves 34 in the legs from outside to inside the circumferential groove 12 extend.
  • These second grooves 34 are also in the FIG. 7 displayed.
  • the head area 38 of the circumferential securing device 10 is larger than the constriction S E between the legs 16 and 18.
  • the height h U ' of the circumferential securing device 10 from the base 14 to the end of the head region 38 is smaller than the groove height h N.
  • this circumferential securing 10 ' like the wire holder 36, is rotated into the circumferential groove 12.
  • third receptacles 74 must be embedded in the legs 16 and 18, which are preferably arcuate (see FIG. 7 ).
  • the circumferential guard 10 ' may have an extended foot portion 76, such as the wire retainer 36 in FIG FIG. 6 , In this case, the circumferential groove 12 has a second recess 78 for the extended foot region 76.
  • the second recess 78 may be shaped in the same way as the first recess 69.
  • the circumferential securing device 10 ' is then screwed into the peripheral groove 12 in exactly the same way as the wire holder 36 with an extended foot region 71.
  • the securing of the blades in the circumferential direction is carried out by securing parts used (circumferential securing 10 and wire holder 36) which engage positively in the circumferential groove 10 of the disc 2.
  • the tilting out of individual blades 4, 6, and 8 is prevented by a shaping element (eg securing wire 51) on the blade roots 54, 55 and 58.
  • a shaping element eg securing wire 51
  • this safety wire creates a positive connection for the entire disc-blade composite. Slippage of the wire in the circumferential direction is ensured by the circumferential 10 prevented.
  • the securing elements in particular the securing wires 51
  • the securing wires 51 are applied over a large area to the adjacent components.
  • the assembly takes place without plastic deformation or screw connections. This avoids undefined material stresses due to deformation and thus possible cracking. Due to the nature of the construction, the centrifugal force of the securing elements distributed during operation almost uniformly on the blades. By appropriate design also the unbalanced load of the dovetail of the blades 4, 6 and 8 is minimized.
  • the invention can be used in particular in the compressor and in the turbine area of turbomachines.

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

Claims (14)

  1. Rotor de turbomachine comprenant ;
    - au moins une aube (4, 6, 8) présentant une pale d'aube (20) et un pied d'aube (54, 55, 58),
    - un corps de base de rotor (2), en particulier un disque (2), présentant une rainure périphérique (12) ouverte vers l'extérieur pour la réception du pied d'aube (54, 55, 58),
    dans lequel la rainure périphérique (12) et le pied d'aube (54, 55, 58) sont formés de telle façon qu'une rotation de l'aube (4, 6, 8) autour d'un axe (Ar, AT) dans la rainure périphérique (12) permet de bloquer le pied d'aube (54, 55, 58),
    caractérisé en ce que
    l'axe (AT) s'étend parallèlement à une perpendiculaire de l'axe de rotation du corps de base de rotor (2) et/ou l'axe (Ar) s'étend radialement par rapport au corps de base de rotor (2), et en ce que le rotor présente un élément de blocage (51) dans la rainure périphérique (12), lequel s'appuie sur le côté inférieur (63) du pied d'aube (54, 55, 58).
  2. Rotor selon la revendication 1, caractérisé en ce que l'élément de blocage (52) est un fil de blocage.
  3. Rotor selon au moins l'une quelconque des revendications précédentes, caractérisé en ce que le pied d'aube (54, 55, 58) présente un élément de guidage (64) formé de façon complémentaire par rapport à l'élément de blocage (51), en particulier une rainure de guidage,
  4. Rotor selon au moins l'une quelconque des revendications précédentes, caractérisé en ce que l'aube (2) présente une bande couvrante intérieure (24) s'étendant transversalement à la pale d'aube (20), de telle sorte qu'au moins une nervure (26) de la bande couvrante intérieure (24) forme une fente (79) ensemble avec le corps de base de rotor (2).
  5. Rotor selon au moins l'une quelconque des revendications précédentes, caractérisé en ce qu'une zone étroite (SE) de la rainure périphérique (12) présente une taille suffisamment grande pour permettre au pied d'aube (54, 55, 58) de s'insérer dans la rainure périphérique (12) lors de la rotation des aubes (4, 6, 8) autour de l'axe (Ar, AT).
  6. Rotor selon au moins l'une quelconque des revendications précédentes, caractérisé en ce que la zone étroite (SE) présente une taille suffisamment petite pour permettre à au moins une surface d'appui (66, 68) du pied d'aube (54, 55, 58) de s'appuyer sur au moins une surface d'appui (70, 72) située dans la rainure périphérique (12).
  7. Rotor selon au moins l'une quelconque des revendications précédentes, caractérisé en ce que la zone étroite (SE) est plus grande qu'une profondeur (T) du pied d'aube (54, 55, 58) et/ou en ce que la zone étroite (SE) est plus petite que la largeur (B) du pied d'aube (54, 55, 58), dans lequel la largeur (B) du pied d'aube (54, 55, 58) est plus grande que la profondeur (T) du pied d'aube (54, 55, 58).
  8. Rotor selon au moins l'une quelconque des revendications précédentes, caractérisé en ce que le rotor comporte un élément de blocage circonférentiel (10) présentant une région de tête (38) avec un premier logement (42) destiné à une partie au moins d'un pied d'aube (54, 58), et le pied d'aube (54, 58) présente une partie saillante (56, 60) formée de façon complémentaire par rapport au premier logement (42).
  9. Rotor selon au moins l'une quelconque des revendications précédentes, caractérisé en ce que le rotor comporte un élément de blocage circonférentiel (10) avec une région de pied (40) s'appuyant sur la base (14) de la rainure périphérique (12).
  10. Rotor selon au moins l'une quelconque des revendications précédentes, caractérisé en ce que le corps de base de rotor (2) présente au moins un évidement (78) et/ou une surélévation (81) dans la base (14) de la rainure périphérique (12) et/ou en ce que l'élément de blocage circonférentiel (10) présente une région de pied (40, 76) agencée dans l'évidement (78).
  11. Rotor selon l'une quelconque des revendications 8 à 10, caractérisé en ce que la largeur (bU) de la région de tête (38) de l'élément de blocage circonférentiel (10) est supérieure à la zone étroite (SE).
  12. Rotor selon la revendication 11, caractérisé en ce que la hauteur (hu) de l'élément de blocage circonférentiel (10) est au moins aussi grande que la hauteur de rainure (hN) et en ce que le rotor présente au moins une rainure (34) s'étendant transversalement à la rainure périphérique (12) pour la réception de l'élément de blocage circonférentiel (10).
  13. Rotor selon la revendication 11, caractérisé en ce que la hauteur (hU') de l'élément de blocage circonférentiel (10) est inférieure à la hauteur de rainure (hN), et au moins une paroi latérale (16, 18) de la rainure périphérique (12) présente un logement (74) pour l'élément de blocage circonférentiel (10).
  14. Turbomachine comprenant un rotor selon au moins l'une quelconque des revendications précédentes.
EP14193326.7A 2013-11-19 2014-11-14 Rotor d'une turbomachine Not-in-force EP2873809B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013223607.7A DE102013223607A1 (de) 2013-11-19 2013-11-19 Rotor einer Strömungsmaschine

Publications (2)

Publication Number Publication Date
EP2873809A1 EP2873809A1 (fr) 2015-05-20
EP2873809B1 true EP2873809B1 (fr) 2018-01-10

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US (1) US10066493B2 (fr)
EP (1) EP2873809B1 (fr)
DE (1) DE102013223607A1 (fr)

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Publication number Priority date Publication date Assignee Title
US11242761B2 (en) * 2020-02-18 2022-02-08 Raytheon Technologies Corporation Tangential rotor blade slot spacer for a gas turbine engine

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US20150139808A1 (en) 2015-05-21
DE102013223607A1 (de) 2015-05-21
US10066493B2 (en) 2018-09-04
EP2873809A1 (fr) 2015-05-20

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