EP3423679A1 - Disque de rotor muni d'un élément d'étanchéité côté frontal - Google Patents

Disque de rotor muni d'un élément d'étanchéité côté frontal

Info

Publication number
EP3423679A1
EP3423679A1 EP17717116.2A EP17717116A EP3423679A1 EP 3423679 A1 EP3423679 A1 EP 3423679A1 EP 17717116 A EP17717116 A EP 17717116A EP 3423679 A1 EP3423679 A1 EP 3423679A1
Authority
EP
European Patent Office
Prior art keywords
rotor disk
rotor
sealing element
sealing
projection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP17717116.2A
Other languages
German (de)
English (en)
Inventor
Peter Schröder
Dirk Springborn
Karsten Kolk
Roger Matthews
Vyacheslav Veitsman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Energy Global GmbH and Co KG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US15/093,800 external-priority patent/US10196916B2/en
Priority claimed from DE102016208759.2A external-priority patent/DE102016208759A1/de
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP3423679A1 publication Critical patent/EP3423679A1/fr
Withdrawn legal-status Critical Current

Links

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
    • F01D5/3007—Fixing blades to rotors; Blade roots ; Blade spacers of axial insertion type
    • F01D5/3015—Fixing blades to rotors; Blade roots ; Blade spacers of axial insertion type with side plates
    • 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
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/001—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between stator blade and rotor
    • 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
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/005—Sealing means between non relatively rotating elements
    • F01D11/006—Sealing the gap between rotor blades or blades and rotor
    • 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

Definitions

  • Rotor disc with front sealing element The invention relates to a rotor disk assembly having a rotor disk and arranged in front of an end face sealing ⁇ elements according to the preamble of claim 1.
  • Blade retaining grooves beyond the outer circumference of the rotor disk are reliably covered by the sealing elements.
  • the fastening of the sealing elements takes place on the rotor disk or on the rotor blade in a different manner, for which purpose the sealing elements are usually mounted on the inner circumference in an annular groove of the rotor disk.
  • the axial securing of the sealing elements on the outer circumference takes place in the usual way also in an annular groove, which is formed by the circumferentially segmented adjacent Laufschaufein.
  • the sealing elements Upon rotation of the rotor, the sealing elements are usually supported in the annular groove in the rotor blade. In this case, the centrifugal force on the sealing elements in addition to the already heavily loaded Laufschaufein. It is therefore an object of the present invention to provide a fastening for the sealing elements, which frees the running show ⁇ blades of the centrifugal force of the sealing elements at least partially.
  • the generic rotor disk assembly initially comprises a rotor disk. This has distributed on the outer circumference on a plurality of axially extending blade retaining grooves. Here, it is not essential that the exhibition ⁇ felhaltenuten parallel to the rotor axis, although this is ⁇ , the advantageous and cost-effective design. Rather, it is sufficient if the blade retaining grooves extend from one end face of the rotor disk to an opposite end face of the rotor disk. These can have both a curved course and advantageously a straight course. Furthermore, the rotor disk arrangement comprises a plurality of circumferentially distributed sealing elements.
  • the rotor disk For Fixie ⁇ tion of the sealing elements on the rotor disk, the rotor disk ⁇ a circumferential fixing projection and / or a plurality of circumferentially arranged Befest Trentsvorsprün- distributed on ge. It is provided that the fastening projection extends at least in the axial direction.
  • the individual sealing elements each have at least one fastening section, which bears against the fastening projection. It is provided that the fastening section is located on the side facing the rotor axis below the mounting projection. According to the invention, a bearing of the sealing elements on the rotor disk is now made possible with transmission of the centrifugal forces existing by the rotation from the sealing elements to the rotor disk, in which the fastening projection
  • the fastening projection an oriented to the rotor axis contact surface on which entwe ⁇ executed as planar layer and / or forms a portion of a conical surface. It is provided that the distance of the support surface to the rotor axis continuously reduced towards the free end. This results in the particularly advantageous effect that the rising towards the Ro ⁇ toral surface will lead upon rotation of the rotor disc assembly and the centrifugal forces occurring here to a use of the sealing element to the rotor disk. So special ⁇ is DERS reliable results in a secure position of the sealing elements on the rotor disk.
  • a crowned (convex or concave) bearing surface which (viewed in longitudinal section along the rotor axis) in relation to the axial extent of the fastener has a multiple (or 3 times or more) larger radius.
  • the fastening projection is designed such that the free end is formed by a securing web extending to the rotor axis.
  • the securing web limits in the axial direction a support groove which opens radially to the rotor axis in the fastening projection. This leads to the possibility of hooking a sealing plate radially from the inside into the support groove on the securing bar.
  • the sealing elements completely cover the blade retaining grooves on the front side.
  • the fastening projection or of a plurality of fastening projections
  • a circumferential fastening projection jump to choose.
  • This can optionally end with its free end on the front side of the rotor disk.
  • the clearance required for the arrangement of the fastening sections is realized in the case of a peripheral fastening projection by means of a circumferential groove which dips axially into the rotor disk, radially below the fastening projection.
  • the encircling fastening projection may also be designed to be overhanging in sections, or completely axially, the end face. As a result, a weakening by a groove otherwise dipping into the rotor disk is avoided or at least reduced.
  • fastening projections extend at least in sections beyond the end face.
  • fastening projections are arranged radially symmetrically.
  • the attachment portion extends on the sealing element over the entire width (in the circumferential direction) of the sealing element.
  • the Be ⁇ fastening portion extending axially to the rotor disc facing. This embodiment allows both the attachment of the sealing element to a circumferential fastening projection, as well as at individual spaced mounting projections.
  • the attachment portion extends - again in the circumferential direction - within b
  • the attachment of the sealing element is in a raised beyond the end face of the rotor disc fastening projection.
  • the fastening projection is circumferentially laterally surrounded by the sealing element.
  • a plurality of fastening projections arranged between the blade retaining grooves in the radially outer region of the sealing element.
  • this arrangement leads to a simpler realization of the fastening portion.
  • the fastening section is arranged in the edge region of the sealing element facing the rotor axis.
  • this way an arrangement of the fastening projection on the rotor disk is radially below the Schaufelhal ⁇ tenuten and / or pointing radially to the rotor axis region between two Schaufelhaltenuten possible.
  • the area heavily loaded during rotation through the rotor blades is not additionally loaded by the sealing plates.
  • the arrangement of the fastening portion at the radially inner edge of ⁇ ner for the advantageous stabilization by the centrifugal force with an axially secure system directly or mit- Telbar on the front side since the center of gravity of the Dichtele ⁇ ment is radially above the mounting portion befin ⁇ det.
  • a second axial securing of the sealing sheet ⁇ on the rotor disk spaced takes place for attachment of the sealing plates by means of the fixing portions at the Befes- actuating projection.
  • the rotor disc a circumferential recess or several distributed in the circumferential Ver ⁇ depressions. These extend in the radial direction.
  • at least two sealing elements each comprise at least one engaging in the recess Sich ceremoniessab- section which also accordingly it radially ⁇ stretched.
  • the recess is located in front of the end face of the rotor disk.
  • the depression widens continuously, i. the flanks of the recess are arc-shaped or inclined with respect to a radial direction.
  • the flanks of the recess extend perpendicular to the rotor axis.
  • the securing portion is carried out correspondingly complementary to the recess, so that the axial fixation of the sealing plate is ensured by the engagement of the securing portion in the recess.
  • a circumferential recess is present in the rotor disk.
  • the Circumferential recess is segmented and is thus interrupted ⁇ chen, provided that the attachment of the sealing elements is ensured ⁇ tet.
  • the circumferential recess is preferably positioned on the side of the sealing elements facing the rotor axis. This leads to a radially outwardly opening annular groove.
  • the fastening projection is on the Ro toral on the side pointing to the rotor axis side relative to the recess. It can be advantageously provided that the recess forms a radially inwardly opening groove.
  • the fastener-receiving ⁇ ra dial above the fastening projection has a free space on ⁇ .
  • the clearance serves to enable the assembly or disassembly by a movement of the sealing element relative to the rotor disk for generating the engagement of the survey in the recess.
  • the free space is to make sufficiently large, so that the sealing element can be placed on the fastening ⁇ supply projection and can be inserted with the survey in the recess.
  • the free space is covered by a locking plate.
  • the locking plate is fixed with an edge portion in a radially extending Blechnut.
  • the locking plate is fixed axially by the engagement of the edge portion in the sheet steel groove and thereby at the same time the sealing element undergoes an axial Si ⁇ assurance to the rotor disk.
  • a securing projection is arranged on the radially opposite edge portion of the Si ⁇ cherungsblechs, where the locking plate opposite to the Blechnut comes radially to the An ⁇ position.
  • a radial fixation of the Si ⁇ is cherungsblechs also given. It is initially irrelevant whether the Blechnut be arranged in the mounting projection and the backup ⁇ projection on the sealing element or, conversely, the Blechnut on the sealing element and the securing projection on the attachment ⁇ projection.
  • At least can be determined by the choice of the height of the securing projection and the existing game to the addition of the locking plate in the sheet metal groove and system on securing projection a required elastic deformation of the locking plate for mounting, which in turn prevents unintentional loss of the locking plate ver ⁇ .
  • the axial and / or radial and / or tangential securing of the sealing elements may use a securing element which penetrates the sealing element at least in sections and engages in a recess in the rotor disk.
  • This may be a safety pin, which is axially, the sealing element is penetratingly fixed in the rotor disc ⁇ in the simplest case.
  • the skilled person is already ⁇ be a plurality of different embodiments for encryption addition. At least it is advantageous in this case, when the securing element is arranged radially below, that is, on the rotor ⁇ axis facing side of the fastening projection.
  • a blocking element is arranged on a rotor blade.
  • the blocking element extends axially beyond the end face, and are able in this case to engage a recess on the sealing element.
  • the design of the sealing element is initially irrelevant, provided the desired coverage of the blade retaining grooves is effected.
  • the Dichtab ⁇ is cut substantially provided for sectional Schaufelhaltenut cover and to secure the like Tele ⁇ ment means of the attachment portion at the attachment ⁇ projection.
  • the wing portion in a cross section along the rotor axis is held out honed U-shaped or V-shaped radially outwardly opening.
  • the wing portion forms a first arranged on the front side wing web and a two of the first wing land
  • sealing element in the circumferential direction viewed has mutually parallel side edges ⁇ . This ensures that, when the second sealing element is joined in the axial and radial direction between the existing sealing elements, there is no collision of the last sealing element to be inserted with the previously mounted sealing elements.
  • FIG 2 shows a view similar to FIG 1, omitting a sealing element
  • FIG. 3 shows a longitudinal section to the arrangement of FIG 1; 4 shows an exploded view of FIG. 3;
  • FIG 5 and FIG 6 perspective views of the embodiment of FIG 1;
  • FIG. 7 shows a locking plate of the embodiment of FIG. 1;
  • FIG 8 shows a further exemplary embodiment of a hooked sealing element in a longitudinal section analogous to FIG. 3; 9 is an exploded view of FIG 8;
  • FIG 10 and FIG 11 a further embodiment of a hooked sealing element
  • Fig. 12 shows another embodiment with radially outside ⁇ parent mounting orsprung
  • FIG. 13 shows the sealing element of FIG. 12
  • FIG. 14 shows a section of the rotor disk for FIG. 12;
  • FIG 15 is a plan view of the sealing element to Fig. 12.
  • FIG 1 is a perspective in a section
  • FIG 2 Outlined view of an embodiment of a rotor disk assembly according to the invention. This comprises a rotor disk 01 and a plurality of the rotor disc 01 buildin ⁇ -saturated sealing elements 11.
  • FIG 2 is the same view as in FIG 1, the rotor disc arrangement under
  • the rotor disk 01 has in each case a fastening projection 03 for fastening the sealing elements 11, which 03 extends substantially axially from the end face 02.
  • On each mounting projection 03 each have a sealing element 11 is attached.
  • the sealing elements 11 project beyond a spaced from the end face 02 free end 04.
  • the arrangement of Si it will be seen in particular from FIG 2 that in each case alternately two different sealing elements IIa and IIb are used, wherein the sealing element IIb pointing to the end face 02 Side has a circumferentially protruding sealing flap 27.
  • the neighboring te sealing element IIa on the end face 02 of the rotor ticket ⁇ be facing side 01 has a sealing shoulder 28 on, in the sealing flap 28, the immersed 27th
  • an advantageous impact cover between the individual sealing elements IIa, IIb is achieved.
  • the attachment of the sealing elements 11 on the rotor disk 01 is advantageous in the figures 3 and 4 in longitudinal section to he ⁇ know.
  • the rotor disk 01 has the axially extending ⁇ on the attachment projection 03.
  • the fastening projection 03 extends with a support surface 05 facing the rotor axis up to a front side 02
  • the fastening projection 03 opposite to the bearing surface 05 on the radially outwardly ⁇ directed side a Blechnut 08, which 08 serves to receive the locking plate 19. It can also be seen from the views that the fastening projection 03 is advantageously located below the blade groove 09 and thus finds a stable connection to the rotor disk 01.
  • a recess 07 Spaced apart from the fastening projection 03, radially spaced apart from the rotor axis, there is a recess 07 in the form of a receiving groove facing the rotor axis.
  • the recess 07 is also arranged in front of the end face 02, and is located in each case between two blade retaining grooves 09th
  • the hinged to the rotor disk Ol sealing element 11 has for transmitting the centrifugal forces on the side facing the rotor axis a mounting portion 13, which 13 extends between the two side edges 26 of the sealing element 11.
  • the sealing element 11 further complementary to the recess 07 of the rotor disk 01 a survey 17 in the form of a extending in the circumferential direction of the web. This radially outwardly extending elevation 17 engages in the recess 07 and thus secures in axia ⁇ ler direction, the position of the sealing plate 11 in the outer region.
  • the sealing element 11 has a lower sealing section 21 facing the rotor axis and a radially outwardly located wing section 22.
  • the sealing portion 21 is flat in this case decor with dark ⁇ tet substantially, that is, the extent of the seal portion 21 in the axial direction is significantly less than the dimension of the sealing portion 21 in the radial direction or in the circumferential direction.
  • the wing portion 22 is U-shaped and in this case forms a first end face 02 wei ⁇ send wing web 23 and a spaced second wing bar 24, wherein the wing webs 23, 24 extend radially outward.
  • the locking plate 19 is in this embodiment at the same time the cover of a mounting projection 03 surrounding clearance 15, which 15 is present to allow the joining of the elevation 17 of the sealing element 11 in the recess 07 of the rotor disk 01.
  • the sealing element IIa is sketched in two perspective views.
  • the fastening portion 13 On the side facing the rotor axis of the fastening receptacle 14 is the fastening portion 13 for receiving the centrifugal forces of Dichtele ⁇ ment 11.
  • the two securing projections 18 are located on the sealing element 11 as a contact surface for the locking plate 19 in the circumferential direction. In the circumferential direction, the elevation 17 extends radially on the side facing the front side 02 to the fastening mounting 14.
  • the adjoining the sealing portion 21 wing portion 22 includes the first wing land 23 on the side facing the rotor disc and spaced therefrom the second wing ⁇ web 24, which 23, 24 extend radially outwardly.
  • Wei ⁇ terhin it can be seen that at the two circumferentially located side edges 26 each have a sealing shoulder 28 existing that is, which offers a 28 spaced from the end face 02 clearance for the arrangement of the sealing flap 27 of the adjacent sealing element IIb.
  • the securing plate 19 is sketched, which on the one hand secures the position of the sealing element 11 on the rotor disk 01 and also covers the remaining space of the mounting receptacle 14 15 in the arrangement of the sealing element on the mounting projection 03.
  • the securing plate 19 is U-shaped.
  • FIG. 8 shows a further exemplary embodiment of a rotor disk arrangement according to the invention in a section analogous to FIG. 3.
  • the rotor disk 31, on whose end face 32 a sealing element 41 is arranged, can again be seen as an example.
  • This 41 is hooked analogously to the planeti ⁇ gen embodiment of the rotor disk 31, wherein the rotor disk 31 for this purpose has a fastening projection 33.
  • the fastening ⁇ supply projection 33 it is possible in this embodiment, the fastening ⁇ supply projection 33 to perform as a circumferential ring.
  • the mounting projection 33 in this case again extends axially beyond the end face 32 out to a free end 34.
  • the support surface 35 On the rotor axis facing side is the support surface 35, which in turn 35 in the axial direction abfal ⁇ lend to the free end 34 is inclined.
  • a depression 37 in the form of a groove extending in the circumferential direction is present on the rotor disk 31.
  • the sealing element 41 analogous to the previous embodiment on a circumferentially extending survey 47. The centrifugal forces occurring in the sealing element 42 during rotation of the rotor disk arrangement are transmitted to the fastening projection 33 via the fastening section 43.
  • the fastening ⁇ tion section 43 extends in the axial direction to the rotor disk 31 facing. Due to the inclined orientation of the support surface 35 and the complementary shape of the attachment ⁇ section 43 is again ensured that the centrifugal ⁇ forces lead to a drawing of the sealing element 41 to the Ro ⁇ torrange 31.
  • a sealing portion 51 of the sealing member 41 is flat in ⁇ We sentlichen, while in contrast, a wing portion 52 having a plurality of wing ribs 53, 54 and 55th
  • FIGS. 10 and 11 outline a further exemplary embodiment of a sealing element 71 for use in a rotor disk arrangement according to the invention.
  • Sealing elements 71 is reali ⁇ Siert in this embodiment by attaching a sealing tab 87 on a side edge of the sealing element 71 and the arrangement of a Dichtab ⁇ rate 88 on the opposite side edge.
  • the axial securing of the sealing element 71 on the rotor disk again takes place in analogy to previous embodiments with a sealing element 71 extending radially outward ⁇ the elevation 77.
  • a sealing element 71 extending radially outward ⁇ the elevation 77.
  • the previous,sbei- games located at the rotor axis end facing a circumferentially extending mounting portion 73rd with a radially outwardly extending web and egg ⁇ ner groove 74.
  • Insofar can be done with the survey 77 and the mounting portion 73, a hooking of the sealing element 71 on the rotor disk.
  • centrifugal forces in the sealing element 71 are advantageously transmitted via the mounting portion 03 pointing to the rotor axis, wherein a radial contact with the rotor disk can be provided both on the web 73 and on the groove bottom of the groove 74.
  • the sealing element 71 is provided with a securing recess 78 on the side facing the rotor axis, wherein the Si ⁇ cherungsaus Principleung 78 is designed semi-circular. This allows insertion of a securing bolt after attachment of the sealing element 71 to the associated rotor disk. Such a fuse is obviously also applicable to the previous embodiments for rotor disk assemblies.
  • FIG 12 a further embodiment of a rotor disk assembly is sketched in section. In turn, the rotor disk 91 with the sealing element 101 arranged thereon can be seen in regions. For better recognition, the sealing element 101 is shown in FIG. 13 and the rotor disk 91 in the region of the sealing element is shown in FIG.
  • the sealing element 101 has similar to previous,sbei ⁇ games a radially outer wing portion 112 with a first wing bar 113 and a second wing bar 114. On the side pointing to the rotor axis, the sealing portion 111 follows with a substantially flat shape.
  • the sealing element 101 has a fastening section 103, by means of which the sealing element 101 is fastened to the rotor disk 91.
  • a fastening section 103 by means of which the sealing element 101 is fastened to the rotor disk 91.
  • the centrifugal forces occurring during the rotation of the rotor disk assembly are transmitted from the sealing element 101 to the rotor disk 91.
  • Radially above the attachment section is a mounting receptacle 104.
  • the mounting receptacle 104 has the shape of a T-slot.
  • attachment portion 103 is arranged radially further outward.
  • ⁇ be found at the radially inner edge region of the sealing element 101, a securing portion 107 for axial Fixie- tion of the sealing element 101 spaced from the Befest onlysab ⁇ section 103rd
  • the rotor disk 91 has, analogously to previous exemplary embodiments, a fastening projection 93, which is located axially in front of an end face 92 of the rotor disk 91.
  • the fastening projection 93 forms a bearing groove 95 which opens radially inwardly and which is bounded by a securing web 96 extending radially inward.
  • the fastening projection 93 in turn extends to a free end 94.
  • Radially further inward in front of the end face 02 is located in the rotor disk 91 is a circumferential recess 97 in the form of a radially outwardly opening annular groove. In this 97, the securing portion 107 of the sealing element 101 is accommodated.
  • this 101 For mounting the sealing element 101, it is provided that this 101 have a free space 105 on the side facing the end face 92 of the rotor disk 91 in the circumferential direction next to the fastening sections 103 or the fastening receptacles 104.
  • FIG 15 shows the sealing element 101 in a view of the end face 92 side facing.
  • the size of the free space 105 is dimensioned such that the buildin ⁇ actuating projection 93 of the rotor disc can be immersed in the free space 105 91st
  • the sealing element 101 is pivoted to the front side 92 (with immersion of the mounting projection 93 in the free space 105) and subsequently rotated about the rotor axis relative to the rotor ⁇ disc 91, whereby the fastening projection 93 passes into the mounting receptacle 104.
  • an advantageous sealing of the rotor disk 91 and / or the rotor blades is outlined near the outer periphery of the rotor disc 91 (not Darge ⁇ represents) in the region of the end face 92nd
  • a section way over the length of the sealing element 101 extending or a particularly preferred a circumferential sealing strip 109 is inserted ⁇ sets.
  • a sealing strip 108 which is arranged in a radially outwardly opening groove in the sealing element 101 and projects slightly beyond the sealing element 101. In combination with a pre ⁇ geous attachment of overlapping collar on the blades, a seal between the sealing element 101 and the collar of the blades can be effected by the sealing strip.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

L'invention concerne un joint d'étanchéité d'un système de disque de rotor muni d'un disque de rotor (01) qui présente une pluralité de rainures de retenue d'aube (09) s'étendant axialement et réparties sur la circonférence extérieure. Le système de disque de rotor comprend par ailleurs une pluralité d'éléments d'étanchéité (11) répartis sur la circonférence, lesquels éléments d'étanchéité (11) recouvrent les rainures de retenue d'aube (09) au moins par endroits côté frontal. Les éléments d'étanchéité (11) sont montés sur le côté faisant face à l'axe du rotor par une section de fixation (13) sur une partie saillante de fixation (03) du disque de rotor (01).
EP17717116.2A 2016-04-08 2017-04-06 Disque de rotor muni d'un élément d'étanchéité côté frontal Withdrawn EP3423679A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US15/093,800 US10196916B2 (en) 2016-04-08 2016-04-08 Rotor disk having an end-side sealing element
DE102016208759.2A DE102016208759A1 (de) 2016-05-20 2016-05-20 Rotorscheibe mit stirnseitigem Dichtelement
PCT/EP2017/058255 WO2017174723A1 (fr) 2016-04-08 2017-04-06 Disque de rotor muni d'un élément d'étanchéité côté frontal

Publications (1)

Publication Number Publication Date
EP3423679A1 true EP3423679A1 (fr) 2019-01-09

Family

ID=58544925

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17717116.2A Withdrawn EP3423679A1 (fr) 2016-04-08 2017-04-06 Disque de rotor muni d'un élément d'étanchéité côté frontal

Country Status (2)

Country Link
EP (1) EP3423679A1 (fr)
WO (1) WO2017174723A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3564489A1 (fr) 2018-05-03 2019-11-06 Siemens Aktiengesellschaft Rotor à surfaces de contact optimisées au niveau de forces centrifuges
FR3113921A1 (fr) * 2020-09-08 2022-03-11 Safran Aircraft Engines Roue aubagée de turbomachine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2244100A (en) * 1990-05-16 1991-11-20 Rolls Royce Plc Retaining gas turbine rotor blades
JP4035140B2 (ja) * 2005-07-22 2008-01-16 川崎重工業株式会社 タービンロータのシールリング
DE102005063286A1 (de) 2005-12-30 2007-07-05 Würth Elektronik GmbH & Co. KG Kontaktbuchse für einen Steckerstift
ES2330379T3 (es) 2007-01-09 2009-12-09 Siemens Aktiengesellschaft Seccion axial de un rotor para un rotor de turbina.
EP2218873A1 (fr) 2009-02-17 2010-08-18 Siemens Aktiengesellschaft Section de rotor pour un rotor d'une turbomachine, aube directrice pour une turbomachine et élément de blocage
US8696320B2 (en) * 2009-03-12 2014-04-15 General Electric Company Gas turbine having seal assembly with coverplate and seal
US9366151B2 (en) * 2012-05-07 2016-06-14 General Electric Company System and method for covering a blade mounting region of turbine blades

Also Published As

Publication number Publication date
WO2017174723A1 (fr) 2017-10-12

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