EP3611344A1 - Rotor à protection de circonférence des éléments d'étanchéité - Google Patents

Rotor à protection de circonférence des éléments d'étanchéité Download PDF

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Publication number
EP3611344A1
EP3611344A1 EP18189273.8A EP18189273A EP3611344A1 EP 3611344 A1 EP3611344 A1 EP 3611344A1 EP 18189273 A EP18189273 A EP 18189273A EP 3611344 A1 EP3611344 A1 EP 3611344A1
Authority
EP
European Patent Office
Prior art keywords
locking
receptacle
rotor
securing
guide
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Withdrawn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
EP18189273.8A
Other languages
German (de)
English (en)
Inventor
Kevin KAMPKA
Peter Schröder
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
Application filed by Siemens AG filed Critical Siemens AG
Priority to EP18189273.8A priority Critical patent/EP3611344A1/fr
Publication of EP3611344A1 publication Critical patent/EP3611344A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • 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
    • F01D11/005—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
    • F05D2230/00—Manufacture
    • F05D2230/60—Assembly methods
    • F05D2230/64—Assembly methods using positioning or alignment devices for aligning or centring, e.g. pins
    • 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
    • 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

Definitions

  • the invention relates to a rotor of a gas turbine with a rotor disk for receiving rotor blades, the blade retaining grooves provided for this purpose being covered on the end face by means of sealing elements. It is important to secure the sealing elements against shifting in the circumferential direction.
  • sealing plates are arranged in front of an end face of a rotor disk and are secured against displacement in the circumferential direction by means of securing elements.
  • the EP 2426315 B1 a rotor section of a rotor of a gas turbine with a rotor disk, on which a plurality of blades are arranged distributed around the circumference.
  • the rotor disk has a plurality of blade holding grooves distributed around the circumference, in which the rotor blades are each fastened with a blade root.
  • sealing elements are arranged distributed over the circumference, which cover the blade-holding grooves.
  • the sealing elements can be displaced slightly in relation to one another in the circumferential direction. This enables the installation of the majority of the blades and then the installation of all sealing elements. By moving all sealing elements in the circumferential direction so that a gap is created between two sealing elements, the installation of the last moving blade is made possible. The sealing elements are then pushed back to their destination. The sealing elements are now secured in the circumferential direction with the aid of a securing bolt which is mounted through the sealing element and into a receptacle in a respective rotor blade. The position of the securing bolt in the bore in the sealing element is subsequently secured by a through the sealing element running locking plate, which is bent after mounting the locking bolt.
  • the object of the present invention is on the one hand to provide a securing of sealing elements in the circumferential direction, which achieves an improved sealing of the openings present in the sealing elements for this purpose.
  • an alternative method of assembly is to be developed, which is advantageous compared to the previously used assembly methods.
  • the generic rotor is used in particular for use in a gas turbine. Regardless of this, the solution can also be applied to other types of rotors, for example a steam turbine.
  • At least the rotor comprises at least one rotor disk, which has a plurality of blade holding grooves distributed around the circumference.
  • the rotor comprises a plurality of rotor blades, each of which has a blade root and a blade platform adjoining the blade root and an airfoil extending radially from the blade platform. there the blades are fastened with the blade root in the respective blade holding groove.
  • the rotor comprises a plurality of sealing elements, which are arranged distributed in the circumference in front of an end face of the rotor disk and in this case cover the blade holding grooves or the blade feet at least in sections.
  • the sealing elements can be displaced in the circumferential direction, with the sealing elements being secured in the circumferential direction in the installed state.
  • the rotor has at least one locking element which secures the sealing element in the circumferential direction.
  • at least one sealing element has a guide receptacle in which the locking element is mounted. Securing in the circumferential direction can take place both directly in relation to the rotor disk and in relation to a moving blade.
  • the rotor disk has at least one locking receptacle.
  • at least one rotor blade has a locking receptacle. The generic securing in the circumferential direction takes place by the engagement of the locking element in the locking receptacle.
  • the guide receptacle is designed at least in sections in the form of a radially extending groove. It is provided that the locking element is mounted in the guide receptacle and can be displaced in the radial direction along the guide receptacle between a radially outer locking position and a radially inner release.
  • the rotor disk has a plurality of locking receptacles
  • a plurality of the moving blades or each rotating blade has a locking receptacle.
  • a plurality of the sealing elements or each sealing element has a guide receptacle for attaching the respective locking element.
  • the plurality of sealing elements or each sealing element can thus be secured in the circumferential direction.
  • the first variant can be combined with the second variant, so that both the rotor disk has at least one locking receptacle and at least one rotor blade has a locking receptacle.
  • the locking element advantageously has a guide section mounted in the guide receptacle and a cover section that completely closes the guide receptacle at least in the locking position.
  • the cover section when the cover section is present, it is provided that the cover section is arranged on the side facing the rotor disk on the sealing element.
  • This embodiment is particularly advantageous if cooling air is present in the area between the sealing element and the rotor disk, which has a higher pressure than the medium on the opposite side of the sealing element.
  • the increased pressure causes the Cooling air pressing the cover section onto the sealing element and thus the advantageous sealing of the opening in the form of the guide receptacle.
  • the cover section is arranged on the sealing element on the side facing away from the rotor disk. This advantageous arrangement of the cover section in particular simplifies assembly and opens up further possibilities for arranging the locking receptacle on the moving blade.
  • Securing the position of the locking element on the sealing element is advantageously made possible by attaching a holding section, the holding section being arranged opposite the cover section on the guide section.
  • the holding section and the covering section lie opposite one another on the sealing element.
  • an assembly opening is provided for this purpose, which is located on the side facing the rotor axis at the end of the guide receptacle. It is provided that the mounting opening enables the holder section to be passed through in the free position for attaching the locking element.
  • the locking element can engage in the locking receptacle in different ways.
  • a first arrangement it is advantageously provided that the cover section engages in the locking receptacle in the locking position.
  • This embodiment is particularly advantageous in the first embodiment with the arrangement of the cover section on the side facing the rotor disk, so that the locking receptacle can be arranged in the rotor disk.
  • the second embodiment with the arrangement of the cover section on the side facing away from the rotor disk, it can be advantageous the larger dimensions of the cover section compared to the guide receptacle are used to engage a locking receptacle on the rotor blade.
  • the holding section engages in the locking receptacle.
  • the holding section is arranged on the side facing the rotor disk, an engagement of the holding section in a locking receptacle on the blade root or in the rotor disk can be effected.
  • the locking receptacle is viewed in the radial direction at the upper end, i.e. on the side facing away from the rotor axis, the guide receptacle and / or radially outside the guide receptacle.
  • This arrangement favors the transmission of force in the event of a load in the circumferential direction (when starting the gas turbine or braking the rotor) from the locking receptacle via the locking element, in particular with the guide section onto the sealing element.
  • the sealing element also advantageously has a securing receptacle. It is provided that a securing element is releasably fastened in the securing receptacle in the locking position and thereby prevents the locking element from being moved out of the locking position.
  • the securing with the securing element can in turn be carried out in different ways.
  • the securing element is detachably fastened to the locking element in the locking position with a connecting element, particularly advantageously with a screw.
  • the position of the securing element relative to the locking element is thus determined directly.
  • the securing element also engages in the securing receptacle on the sealing element. Consequently, with the Screw connection ensures the position of the locking element on the sealing element.
  • the securing receptacle is advantageously carried out in the form of a pocket arranged on the side facing away from the rotor disk next to the guide receptacle.
  • the securing receptacle is designed in the manner of a keyhole and enables the securing element to be mounted in a bayonet-like manner by insertion and subsequent turning.
  • the securing of the securing element in turn against loosening from the locked position can advantageously be prevented by means of a securing plate.
  • the locking plate is provided with at least one tab, which is bent over when the locking element is installed and thereby prevents the locking element from rotating or turning back. It is particularly advantageous to attach two or more tabs to the locking plate, so that it can advantageously be reused several times if a first tab is broken off. It is advantageous if the locking plate rests against the locking element on the side facing the rotor axis in order to prevent rotation.
  • the sealing elements can be mounted on the rotor disk and / or the rotor blades in different ways.
  • the rotor disk advantageously has a circumferential, at least radially outwardly opening annular groove.
  • the sealing elements are mounted in the annular groove with an inner edge section facing the rotor axis.
  • the rotor blades each have an annular segment groove in which the sealing elements are mounted with an outer edge section pointing away from the rotor axis. Accordingly, the sealing elements can be attached in the circumferential direction before the locking element is attached stored with the inner edge portion in the annular groove and with the outer edge portion in the ring segment grooves.
  • Securing a sealing element on a rotor disk of a rotor according to the invention can also be used to convert existing solutions.
  • the use of the solution according to the invention is also advantageous when replacing the sealing element.
  • securing the sealing element according to the invention on the rotor disk of the rotor also leads to a sealing set according to the invention for converting or replacing existing sealing elements.
  • the sealing set is used for a rotor as described above.
  • the sealing set includes:
  • a sealing element is essentially designed as a section of an annular disk. Accordingly, this extends in the circumferential direction and in the radial direction.
  • sealing element is not an exact angular section of the annular disk, but rather a plurality of the sealing elements together form a corresponding annular disk, gaps also being present between the individual sealing elements.
  • the sealing element preferably has a tab or a shoulder on the two side edges lying in the circumferential direction, so that adjacent sealing elements overlap with one another and are nevertheless at least slightly displaceable in relation to one another in the circumferential direction. It is essential for the realization of the sealing set according to the invention that the sealing element has a radially extending guide receptacle and a further securing receptacle either arranged adjacent to the guide receptacle or from the guide receptacle on the side facing the rotor axis.
  • the sealing set comprises a locking element, which is radially displaceable along the guide receptacle between a radially outer locking position and a radially inner release.
  • the locking element engages in a locking receptacle in the locking position and prevents displacement of the sealing element in the circumferential direction.
  • the locking element has a guide section which is mounted in the guide receptacle.
  • the locking element has a cover section arranged on the guide section, which at least in the locking position completely closes the guide receptacle and in this case rests on one side on the sealing element.
  • Another component of the sealing set is a securing element which is detachably fastened in the securing receptacle in the locking position and thereby prevents the securing element from moving out of the locking position.
  • the sealing element and / or the locking element and / or the securing element are designed in accordance with one of the previous descriptions relating to the rotor according to the invention.
  • FIG. 1 A first exemplary embodiment of a rotor according to the invention is outlined in the area of the sealing element 31 to be secured.
  • the rotor disk 01 can be seen with the blade-holding grooves 02 which are distributed in the circumference and penetrate the rotor disk 01 in the axial direction 02.
  • the exact course of the blade-holding grooves 02 is not relevant and deviates slightly from the axial direction of the rotor.
  • the rotor disk also has a circumferential, annular groove 03 that opens radially outward.
  • blades 11 fastened in the blade holding grooves 02 each with a blade root 12, with a blade platform 13 extending in the circumferential direction and axially extending adjoining the blade root 12.
  • This 13 projects in sections over the rotor disk 01 and has an annular segment groove 14 (hidden in this view) on the side facing the rotor axis.
  • An airfoil adjoins the airfoil platform 13 and extends radially outward, which can only be recognized here to a certain extent.
  • a plurality of sealing elements 31 are arranged in front of one end face of the rotor disk 01 and are mounted with an inner edge section 33 in the annular groove 03 of the rotor disk 01 and with an outer edge section 34 in the ring segment grooves 14 of the rotor blades 11.
  • the sealing elements each have a guide receptacle 36.
  • the guide receptacle 36 is not only an opening that simply extends axially through the sealing element 31, but rather the guide receptacle 36 is designed in the manner of a radially extending groove, so that a displacement in the radial direction is made possible ,
  • the radially displaceable locking element 71 is arranged in the guide receptacle 36.
  • the position of the locking element 71 in the radial direction is in turn ensured by a securing element 111, which engages 111 in the sealing element 31 and is screwed onto the locking element 71.
  • the first exemplary embodiment is shown in section in the area of the locking element 71, this 71 being in the free position in which the sealing elements 31 can be displaced in the circumferential direction.
  • the rotor disk 01 can be seen with the sealing element 31 arranged in front of an end face of the rotor disk 01.
  • the rotor blades 11 are further mounted on the rotor disk 01, of which 11 a blade platform 13 is arranged radially outside the rotor disk 01.
  • the blade platform 13 projects above the rotor disc 01 and forms a circumferential ring segment groove 14 on the side facing the rotor axis.
  • the sealing element 31 with the outer edge portion 34 is mounted.
  • the design of the guide receptacle 36 as a groove extending in the radial direction is essential for the embodiment according to the invention.
  • the locking element 71 is mounted radially displaceably with a guide section 75.
  • the locking element 71 On the side facing the rotor disk 01, the locking element 71 has a cover section 74.
  • the rotor disk 01 In the area of the radially outward end of the Guide receptacle 36, the rotor disk 01 has a locking receptacle 05, which 05 is designed to be open towards the sealing element 31 and toward the rotor axis.
  • the locking element 71 with the cover section 74 is located radially below the locking receptacle 05 in the release.
  • the first exemplary embodiment is outlined in section in the area of the locking element 71, in which case the locking element 71 is in the locking position.
  • the locking element 71 engages with the cover portion 74 in the locking receptacle 05 and thus prevents a displacement of the sealing element 31 in the circumferential direction.
  • the cover section 74 covers the guide receptacle 36 in the locking position.
  • the locking element 71 is secured in the locking position by means of a locking element 111, which 111, on the one hand, in a locking receptacle 37 (cf. Fig. 2 ) engages in the sealing element 31 and on the other hand is screwed onto the locking element 71 with a screw 151.
  • annular groove 03 in the rotor disk 01, in which the sealing element 31 engages with an inner edge section 33, can also be seen.
  • the rotor disk 01 is sketched in sections in the area of the locking receptacle 05.
  • the blade holding grooves 02, which 02 extend axially through the rotor disk, can also be seen.
  • the locking receptacle 05 is formed by projections 06 raised on both sides of the rotor disk 01 from the front side.
  • the sealing element 31 is now outlined, which 31 essentially comprises a section of an annular one Disc forms and on the side facing the rotor axis has an inner edge portion 33 for storage in the rotor disc 01 and at the radially outward end an outer edge portion 34 for engagement in the ring segment groove 14 of the blades 11. Furthermore, the sealing element 31 has a guide receptacle 36, which according to the invention is designed in the form of a radially extending groove. On both sides of the guide receptacle 36 on the side facing away from the rotor disk there are securing receptacles 37 which are provided 37 for mounting the securing element.
  • the locking element 71 is now outlined, which 71 has a guide section 75 mounted in the guide receptacle 36 and a cover section 74 adjoining it, the cover section 74 completely closing the guide receptacle 36 on the side facing the rotor disk 01 in the locking position.
  • the securing element 111 of the first embodiment is outlined, which 111 is essentially formed as a section of a sheet metal strip and has a bore for attaching the fastening screw 151.
  • FIG. 8 A second exemplary embodiment is outlined, again the rotor disk 01 with the annular groove and the rotor blades 11 with the ring segment grooves present in the associated blade platforms 13 can be seen.
  • An end face of the rotor disk 01 is in turn covered by a plurality of sealing elements 41 arranged distributed around the circumference. Their position in the circumferential direction is determined by the locking element 81, which is mounted 81 on the sealing element 41 and engages in a locking receptacle 15 of the moving blades 11.
  • the respective locking receptacle 15 is formed by two mutually adjacent rotor blades 11.
  • the locking element 121 On the side facing the rotor axis below the locking element 81, the locking element 121 is located in the locking position, which prevents 121 a radial displacement of the locking element 81.
  • the sealing element 41 with the locking element 81 arranged in the locking position and the securing element 121 located underneath it is further sketched in a cutout from the rear, ie viewed from the rotor disk.
  • the sealing element 41 in turn has a guide receptacle 46, which according to the invention 46 is in the form of a radially extending groove.
  • a guide section 85 mounted in the guide receptacle 46.
  • the locking element 81 also has a cover section 84, which in this exemplary embodiment 84 is positioned on the side facing away from the rotor disk on the sealing element 41. Analogous to the previous example, the cover section 84 also engages in the locking receptacle 15, which, however, is formed by the rotor blades 11 in this exemplary embodiment.
  • the position of the locking element 81 on the sealing element 41 in the axial direction is ensured by a holding section 86 which 86 adjoins the guide section 85 opposite the cover section 84.
  • the assembly of the locking element 81 with the holding section 86 is made possible by an assembly opening 48 in the sealing element 41 radially below the guide receptacle 46.
  • the sealing element 41 has a securing receptacle 47, which is arranged 47 on the side facing the rotor axis below the guiding receptacle 46 and is designed in the form of a keyhole.
  • the securing element 121 attached in the securing receptacle 47 has a nose at the end of its cylindrical body, which can be pushed accordingly through the securing receptacle 47 and subsequently rotated, so that a bayonet-like securing takes place.
  • the head of the securing element 121 lies here in the locking position of the securing element 121 on its side facing the rotor axis.
  • a third exemplary embodiment is outlined analogously to the second exemplary embodiment.
  • the sealing elements 51 can again be seen, which are arranged 51 distributed in the circumference in front of an end face of the rotor disk, wherein a plurality of rotor blades 11 are also arranged distributed on the rotor disk in the circumference.
  • the blade platforms 13 of the moving blades 11 form corresponding locking receptacles 15, in each of which a locking element 91 engages in the locking position.
  • This 91 is in this case mounted on the sealing element 51 in accordance with the previous exemplary embodiment.
  • securing the securing element 131 against loosening is provided, a securing plate 171 being used for this purpose.
  • the locking element 91 is sketched in detail with the securing element 131 in the locking position.
  • the mounting opening 58 can be seen to some extent and the securing receptacle 57 radially below it.
  • the position of the keyhole-like shape is rotated by 180 °, so that the nose of the securing element 131 in the Locking position facing the rotor axis.
  • the securing element 131 is prevented from being unscrewed by using a securing plate 171 which, on the one hand, bears on the locking element 91 on the side facing the rotor axis and also has a plurality of tabs, one of which can be bent into a notch in the securing element.
  • the locking plate 171 is sketched, which now also has a keyhole-like opening 171 and two tabs on the outer circumference.
  • the Fig. 17 now shows the securing element 131 to the third embodiment.
  • a fourth exemplary embodiment is outlined in the following figures, wherein in the Fig. 18 a moving blade 21 is shown, on which 21 a locking element 101 engages for locking. It can be seen that the rotor blade 21 has a locking receptacle 25 on its blade root 22 below the blade platform 23, which is realized 25 by projections 26 arranged on both sides.
  • the arrangement of the locking element 101 on the sealing element 61 is outlined in section. It can again be seen that the sealing element 61 has a guide receptacle 66 which 66 is designed in sections as a radially extending groove.
  • the enlarged mounting opening 68 is located at the end of the guide receptacle 66 facing the rotor axis.
  • a securing receptacle 67 is again arranged radially below the guide receptacle 66, analogously to the third exemplary embodiment.
  • the locking element 101 in turn has a radial in the guide receptacle 66 displaceably mounted guide section 105 and a cover section 104 which faces away from the rotor axis and which 104 completely closes the guide receptacle 66 in the locking position.
  • the holding section 106 is located opposite the cover section 104. In contrast to the previous exemplary embodiments, it is provided here that the holding section 106 engages in the locking receptacle 25 to secure the position of the sealing elements 61 in the circumferential direction.
  • the sealing element 61 is sketched again, which analogously has an inner edge section 63 and an outer edge section 64 opposite.
  • the guide receptacle 66 with the partially radially extending groove and the enlarged mounting opening 68 is also located here at a comparable position as in the other exemplary embodiments.
  • the securing receptacle 67 is located on the side facing the rotor axis below the guide receptacle 66 in the manner of a keyhole ,
  • the Fig. 21 again outlines the rotor blade 21 with the blade root 22 and the locking receptacle 25 formed by the projections 26, the locking receptacle 25 being radially accessible in an axial direction and pointing towards the rotor axis.
  • the Fig. 22 shows again the locking element 101 with the guide section 105, the cover section 104 and the holding section 106 located opposite.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
EP18189273.8A 2018-08-16 2018-08-16 Rotor à protection de circonférence des éléments d'étanchéité Withdrawn EP3611344A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP18189273.8A EP3611344A1 (fr) 2018-08-16 2018-08-16 Rotor à protection de circonférence des éléments d'étanchéité

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18189273.8A EP3611344A1 (fr) 2018-08-16 2018-08-16 Rotor à protection de circonférence des éléments d'étanchéité

Publications (1)

Publication Number Publication Date
EP3611344A1 true EP3611344A1 (fr) 2020-02-19

Family

ID=63294059

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Application Number Title Priority Date Filing Date
EP18189273.8A Withdrawn EP3611344A1 (fr) 2018-08-16 2018-08-16 Rotor à protection de circonférence des éléments d'étanchéité

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EP (1) EP3611344A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2270544A (en) * 1992-09-09 1994-03-16 Snecma Annular seal for a bladed rotor.
EP1978211A1 (fr) * 2007-04-04 2008-10-08 Siemens Aktiengesellschaft Dispositif de sécurité axiale sur des aubes mobiles d'un moteur tout comme turbine à gaz dotée d'un tel dispositif
EP2426315B1 (fr) 2009-02-17 2014-10-29 Siemens Aktiengesellschaft Section de rotor pour un rotor d'une turbomachine
WO2015051957A1 (fr) * 2013-10-10 2015-04-16 Siemens Aktiengesellschaft Aube de turbine et turbine à gaz
WO2015129580A1 (fr) * 2014-02-26 2015-09-03 三菱日立パワーシステムズ株式会社 Dispositif de retenue d'aube de rotor, dispositif de pressage d'élément de fixation d'aube de rotor, et procédé de fabrication, procédé de montage et procédé de démontage de machine rotative

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2270544A (en) * 1992-09-09 1994-03-16 Snecma Annular seal for a bladed rotor.
EP1978211A1 (fr) * 2007-04-04 2008-10-08 Siemens Aktiengesellschaft Dispositif de sécurité axiale sur des aubes mobiles d'un moteur tout comme turbine à gaz dotée d'un tel dispositif
EP2426315B1 (fr) 2009-02-17 2014-10-29 Siemens Aktiengesellschaft Section de rotor pour un rotor d'une turbomachine
WO2015051957A1 (fr) * 2013-10-10 2015-04-16 Siemens Aktiengesellschaft Aube de turbine et turbine à gaz
WO2015129580A1 (fr) * 2014-02-26 2015-09-03 三菱日立パワーシステムズ株式会社 Dispositif de retenue d'aube de rotor, dispositif de pressage d'élément de fixation d'aube de rotor, et procédé de fabrication, procédé de montage et procédé de démontage de machine rotative

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