EP3538745A1 - Procédé de montage et/ou démontage de composants d'une turbine comportant un carter de turbine, adaptateur, système à utiliser dans le procédé et utilisation d'un adaptateur - Google Patents

Procédé de montage et/ou démontage de composants d'une turbine comportant un carter de turbine, adaptateur, système à utiliser dans le procédé et utilisation d'un adaptateur

Info

Publication number
EP3538745A1
EP3538745A1 EP18702064.9A EP18702064A EP3538745A1 EP 3538745 A1 EP3538745 A1 EP 3538745A1 EP 18702064 A EP18702064 A EP 18702064A EP 3538745 A1 EP3538745 A1 EP 3538745A1
Authority
EP
European Patent Office
Prior art keywords
crane
housing
adapter
turbine
base plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP18702064.9A
Other languages
German (de)
English (en)
Other versions
EP3538745B1 (fr
Inventor
Sezgin Cimen
Thomas Meyer
Benjamin Runge
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
Publication of EP3538745A1 publication Critical patent/EP3538745A1/fr
Application granted granted Critical
Publication of EP3538745B1 publication Critical patent/EP3538745B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/28—Supporting or mounting arrangements, e.g. for turbine casing
    • F01D25/285—Temporary support structures, e.g. for testing, assembling, installing, repairing; Assembly methods using such structures
    • 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
    • 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
    • F05D2230/68—Assembly methods using auxiliary equipment for lifting or holding
    • 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
    • F05D2230/70—Disassembly methods
    • 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
    • F05D2260/31—Retaining bolts or nuts

Definitions

  • the invention relates to a method for assembling and / or disassembling components of a turbine housing having a turbine housing. Moreover, the invention relates to an adapter and a system for use in this method. Finally, the invention relates to the use of an adapter.
  • turbine components which may be, for example, the blades of the turbine
  • the components sometimes have a not inconsiderable weight and must be mounted or dismantled in an unfavorable working position.
  • some turbine types require that the rotors be disassembled at the 12 o'clock position of the rotor.
  • the weight of the blades is sometimes in the range of over 40, for example between 46 and 48 kg.
  • a manual assembly or disassembly is problematic due to the weight and the unfavorable working position.
  • a fitter would have to climb into the outlet housing at 12 o'clock position of the rotor, dismantle the blades there manually and then hand them over to a colleague so that he can transport the blades away.
  • the object of the present invention is to enable a simple and safe assembly and / or disassembly of components of turbines.
  • This object is achieved by a method for assembling and / or disassembling components of a turbine housing having a turbine, in which - A crane is attached to the turbine housing, and
  • At least one component to be mounted by means of the crane is brought into its installed position and / or at least one component to be disassembled with the aid of
  • Crane is removed from its installed position, wherein it is at least one component to be mounted and / or disassembled, in particular a turbine blade.
  • the basic idea of the present invention is to attach a crane to a turbine housing directly or indirectly, then preferably via an adapter, and to support, by the crane, turbine components for their assembly or disassembly to an installation position on the turbine or from a turbine to transport such.
  • the attachment of the crane according to the invention to the turbine housing offers on the one hand the advantage that the crane can be arranged particularly close to the assembly or disassembly position.
  • the crane can be dispensed with heavy counterweights at the foot of the crane, since the turbine itself is the required counterweight, which is sufficient for the transport of relatively heavy components.
  • the crane used in accordance with the invention is preferably a mobile crane, which may be u.a. due to its dimensions and weight with little effort when needed to transport to a required location on a turbine.
  • the crane may be one which has a tower and a boom, in particular articulated to the tower, which has proved to be particularly suitable. If this crane type is used, the free end of the tower is preferably fastened to the turbine housing. With the boom of the crane can then flexibly different Installation positions of turbine components can be achieved. The height of the tower is suitably chosen such that the boom can engage over the rotor of the turbine.
  • the crane is fastened to the lower housing half in the region of the parting line, in particular in the open state of a turbine housing, which is divided into two by a preferably at least substantially horizontally extending parting line.
  • the crane is fastened to the turbine housing by using at least one passage bore in the turbine housing, in particular in the lower housing half in the region of the parting line. If one or more bores already present in the housing is used, an adaptation of the housing for carrying out the method according to the invention is not required and the complexity is therefore particularly low.
  • those through-holes can be used for the attachment of the crane, through which extend in the closed state of the housing, the parting pins for the housing closure.
  • the crane or an adapter connected to the crane has a cylindrical fastening bolt, the outer contour of which is adapted to the inner contour of a through bore present in the turbine housing, in particular in the lower housing half in the region of the parting line , and the fastening bolt used to attach the crane in the through hole and is preferably fixed by means of at least one screw.
  • a fastening bolt has proved to be particularly suitable for temporarily fixing a crane in a stable manner using a bore present in the housing, in particular in the region of the parting line of the lower housing half.
  • a crane which has a tower and a tower in particular articulated boom.
  • a cylindrical fastening bolt is provided at the free end of the tower or at an adapter fixed to the free end of the tower.
  • the fastening bolt is preferably configured and arranged on the tower or adapter to be connected or connected to the tower such that the longitudinal axis of the fastening bolt and the longitudinal axis of the tower run at least substantially parallel to one another.
  • the crane is also preferably attached to the housing such that its tower is oriented at least substantially vertically.
  • a work platform can be provided temporarily, which can enter at least one fitter to perform assembly and / or disassembly work.
  • a further embodiment of the method according to the invention is characterized in that a Häplatt- form is attached to the housing, preferably at a distance of less than one meter to the crane, which are entered by a user for the assembly and / or disassembly process can.
  • the working platform is also preferably mounted on the lower half of a two-part turbine housing, in particular in the region of the parting line.
  • Another object of the invention is an adapter for use in the method according to the invention, which faces a cranium-facing abutment surface during its mounting to the crane and a housing-side abutment surface facing the housing of the turbine during its mounting. attachment to the crane and means for attachment to the housing.
  • the adapter according to the invention has a side adapted for attachment to the turbine housing and a side adapted for attachment to the crane.
  • the adapter offers the great advantage that a particular mobile crane, which is not designed specifically for the inventive attachment to the turbine housing, can be connected in a simple manner with the housing.
  • a mobile crane having a tower, at its free end for safe standing a bottom plate is screwed, for which passage and / or
  • Tapped holes are provided in the tower, the bottom plate is removed and an adapter according to the invention having through and / or threaded bores corresponding to those in the crane tower can be fixed to the free end of the tower.
  • Another major advantage of using an adapter is that a crane can be used on differently designed turbine housings, wherein only for each type of housing an associated adapter must be available, which is designed for attachment to the respective housing.
  • the adapter according to the invention comprises a crane-side base plate defining the crane-side stop surface and a housing-side base plate defining the housing-side stop surface, which are connected to one another.
  • the crane-side and housing-side base plate extend in particular at least substantially parallel to one another.
  • the means for attachment to the housing preferably comprise a protruding from the housing-side base plate cylinder the shaped fastening bolt.
  • the fastening bolt is adapted in a preferred embodiment of a through-bore already present in a turbine housing, in particular the lower half of the housing in the region of the parting line, so that in the mounted state, when the crane is fastened to the housing via this, it sits in the bore in a form-fitting manner.
  • the outer diameter of the fastening bolt of the adapter corresponds to the inner diameter of a through hole in the housing and preferably the length of the fastening bolt of the adapter at least the axial extent of the bore.
  • the fastening bolt is furthermore preferably adapted to a through-hole through which the part-joint bolts extend in the closed state of the turbine housing, that is to say that the shape of the part-joint bolt preferably corresponds in its shape.
  • the means which the adapter according to the invention has for attachment to the crane preferably comprise through-holes and / or tapped holes provided in the crane-side base plate, in particular for through and / or threaded bores provided in the crane, preferably a tower of the crane are, correspond.
  • a projecting from the housing-side base plate in particular cylindrical securing element may be provided.
  • This preferably has a smaller diameter and / or a smaller length than the cylindrical fastening bolt.
  • the securing element may in particular be designed and arranged such that in the assembled state of the adapter it engages in a recess provided in the turbine housing, in particular the lower housing half in the region of the parting line, preferably further through-bore.
  • the securing element is designed such that in the mounted state it sits in a form-fitting manner in the recess, in particular further through-bore in the housing.
  • the shape and dimension of the fastening bolt and the shape, dimension and position of the securing element on the base plate are to be adapted to the configuration of the respective turbine housing, in particular provided in the turbine housing preferably in the region of the parting through holes. If the inventive fastening of a crane to a turbine housing by means of adapters to differently designed turbine housings, a specially adapted adapter with matching fastening bolt and in particular securing element can be provided in particular for each housing type.
  • a threaded bore for receiving a clamping screw is provided in the fastening bolt, in particular in its end face, wherein preferably the longitudinal axis of the threaded bore and the longitudinal axis of the fastening bolt are oriented at least substantially parallel to one another.
  • the adapter according to the invention is characterized according to a further embodiment in that the crane-side and the housing-side base plate are connected via a tubular connecting element. Then it is preferable to one
  • the two base plates can also be connected to one another via stabilizing webs.
  • the tubular connecting element may be formed for example as a round or square tube.
  • at least one recess is further provided in the housing-side base plate, which preferably extends to the edge thereof.
  • an adapter with a base plate with recesses at a suitable location this problem can be met and a reliable temporary fixation of the crane - even in a limited space - can be achieved.
  • the position and size of the recesses is to be adapted to the specific nature of the turbine housing to which the crane is to be attached, in particular to the number, size and position of non-removable elements.
  • Another object of the invention is a system for use in the method according to the invention, comprising an adapter for fixing the crane to a turbine housing.
  • the adapter is preferably one according to the present invention, which is described in more detail above.
  • the crane of the system according to the invention comprises, in particular, a tower and a jib pivotally connected to the tower, wherein the jib preferably has a plurality of, in particular three jib segments connected to one another in an articulated manner.
  • the system according to the invention advantageously comprises a receptacle for a turbine component provided on the crane, in particular on a jib of the crane.
  • the receptacle can be designed, for example, as a gripper or the like in order to be able to grasp a turbine component to be mounted or dismounted.
  • the admission, in particular the gripper can in the training to the adapted to be assembled and / or dismantled turbine components. If, for example, turbine blades are to be used or expanded, it is preferable to use a receptacle, for example a gripper, which is adapted in its shape and / or dimensioning to the shape and / or dimensioning blades.
  • the gripper is then preferably designed such that with this a turbine component on the entry and exit edge can be tensioned. Since the attachment point is preferably located above the center of gravity, in a particularly preferred embodiment, a C-hook is used as a receptacle.
  • an object of the invention is the use of an adapter for fastening a crane, in particular the tower of a crane, on a turbine housing, preferably on the parting line of the lower half of an open turbine housing.
  • the adapter is preferably one according to the present invention, which is described in more detail above.
  • Figure 1 is a schematic perspective view of a portion of a turbine, on the housing according to the invention, a crane is fixed by means of an adapter;
  • Figure 2 is an enlarged view of the adapter shown in Figure 1;
  • Figure 3 is an enlarged view of a detail of Figure 1;
  • Figure 4 is a view of the adapter of Figures 1 and 3 obliquely from below; ⁇ Q
  • Figure 5 is a view of the adapter of Figures 1 and 3 from below;
  • Figure 6 is a section along the line VI -VI in Figure 5;
  • Figure 7 is a section along the line VII-VII in Figure 5;
  • Figure 8 is an enlarged view of the section A of Figure 6;
  • FIG. 1 shows a perspective view of a section of a turbine 1.
  • the turbine 1 comprises per se known per se
  • a rotor 2 and a two-part turbine housing of which in Figure 1, only the lower half of the housing 3 can be seen, since the upper half of the housing is removed.
  • the blades 4 are to be dismantled, which happens in the illustrated embodiment, performing an embodiment of the method according to the invention.
  • a mobile crane 5 was attached to the turbine housing in a first step. 1 shows the crane 5 in the already attached to the housing state.
  • the mobile crane 5 comprises a tower 6 and a boom 7 pivotally attached to the tower.
  • the boom 7 is divided into three segments 8 for greater flexibility in deflection, which in turn are hinged together.
  • a cable 9 is attached, the other end is connected to a receptacle for a turbine bucket 4, which in the present case is given by a in the figures only schematically indicated gripper 10, which in this case is a C Hook is acting.
  • the crane 5, specifically the downwardly facing free end of the tower 6 of the crane 5 in Figure 1 has been attached to the lower half 3 in the region of the horizontally extending parting line 11 of the turbine housing.
  • the tower 6 of the crane 5 is not connected directly to the lower housing half 3 but via an adapter 12 according to the invention.
  • the adapter 12 has a crane-side abutment surface 13 to be used during its mounting to the crane 5, and one at its end
  • the adapter 12 comprises a crane-side stop surface 13 defining crane-side base plate 15 and a housing-side stop surface 14 defining the housing-side base plate 16.
  • the crane-side base plate 15 is characterized by a square and the housing side Base plate 16 by a round shape.
  • the housing-side base plate 16 is formed in the illustrated embodiment by two superposed sub-plates, which, as is apparent from Figures 6 and 8, are connected to each other by means of screws 23.
  • two recesses 17 are provided which extend to the edge of the base plate 16.
  • This space for non-removable elements is created, which may be present on the lower housing half 3 in the region of the parting line 11 or are.
  • heads of mounted screws or the free ends of mounted threaded rods and / or nuts may be present, which must not be dismantled for stability reasons.
  • the two base plates 15, 16 are connected via a tubular connecting element 18, on whose one end face the
  • the tubular connecting element 18 is distinguished, as can be seen in FIG. 4, by a square cross-section.
  • the two base plates 15, 16 also extend at least substantially parallel to one another.
  • the adapter 12 In order for the crane 5 to be fastened to the lower housing half 3 of the turbine 1 via the adapter 12, the adapter 12 on the one hand has means for attachment to the lower housing half 3, which in the present case has one of the
  • housing side base plate 16 projecting cylindrical fastening bolts 20 include, and on the other hand means for attachment to the crane 5, the present four provided in the crane-side base plate 15 threaded holes 21 include.
  • the four threaded bores 21 are, as also shown in FIG. 4, arranged in the four corners of the crane-side base plate 15. Its drilling pattern corresponds to that of four through-holes, which are provided on the tower 6 of the crane 5, specifically in a provided at the free end of the tower 6 base plate 22 of the crane 5 (see Figure 2).
  • the means of the adapter 12 for attachment to the crane 5 further comprise four screws 23, each extending through a through hole in the base plate 22 and into a corresponding threaded bore 21 in the crane side Base plate 15 are screwed. In this way, the adapter 12 is stably releasably connected to the tower 6 of the crane 5.
  • the attachment of the adapter 12 to the lower housing half 3 is achieved in the illustrated embodiment on the particular figure 4 removable cylindrical mounting bolts 20, which of the housing side
  • Base plate 16 specifically from the side of this, which defines the housing-side stop surface 14 protrudes.
  • the outer contour of the fastening bolt 20 is adapted to the inner contour of a through hole in the lower housing half 3 in the region of the parting line 11 through which the parting bolt bolts extend in the closed state of the turbine housing for connecting the two housing halves.
  • FIGS. 1 and 2 which show the adapter 12 in the assembled state, the cylindrical fastening bolt 20 is inserted into the through-hole in the lower housing half 3 and is accordingly not visible.
  • the means of the adapter 12 for attachment to the housing comprise, in addition to the cylindrical fastening bolt 20, a threaded bore 21 provided in the fastening bolt 20, specifically in its free end face 24, which points downwards in FIGS. 4, 6, 7 and 9, a screw 23 and a washer 25 (see Figure 9).
  • the longitudinal axis of the threaded bore 21 and the longitudinal axis of the fastening bolt 20 lie against each other.
  • the adapter 12 further comprises for preventing rotation in the assembled state a protruding from the housing-side base plate 16 cylindrical securing element 26, which, as can be seen in particular in Figure 4, a smaller diameter and a shorter length than the cylindrical fastening bolt 20.
  • the securing element 26 is such trained and arranged that it in the assembled state of the adapter 12 in one in the lower half of the housing 3 in the region of the parting line 11 existing recess, in this case further through-hole engages.
  • the securing element 26 is designed such that it sits in the assembled state in a form-fitting manner in the further through-bore.
  • the fastening bolt 20 was inserted into the existing in the region of the parting line 11 through hole from the top and it was the screw 23 with lying on it washer 25 from the bottom of the through hole into the threaded hole 21st screwed in the fastening bolt 20.
  • a working platform 27 has been fastened to the turbine housing, specifically the lower housing half 3 in the area of the parting line 11, which can enter a fitter to perform running - dismantling work and to transfer the crane 5 to control a not shown in the figures, provided on the crane 5 operating unit.
  • the turbine housing specifically the lower housing half 3 in the area of the parting line 11, which can enter a fitter to perform running - dismantling work and to transfer the crane 5 to control a not shown in the figures, provided on the crane 5 operating unit.
  • this is first brought by appropriate positioning of the rotor of the turbine 1 in 12 o'clock position. A rotor blade 4 in this position can be seen in FIG.
  • the boom 7 of the crane 5 is brought into position by a fitter standing on the working platform 27 in such a way that the free end of the boom 7 is at least approximately above the rotor blade 4 to be removed, as shown in FIG.
  • the rotor blade 4 is gripped by means of the attached to the rope 9 gripper 10 and brought out of the mounting position. This can be done solely by the control of the crane 5 or by manual intervention by the fitter, the installer must never carry the entire weight of the rotor 4 of about 45 kg, but at most causes movement of the rotor blade 4, while this from the crane will be carried.
  • the removed from its installation position blade 4 can be brought with the crane 5 to the working platform 27 or to another storage location next to the turbine 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Jib Cranes (AREA)

Abstract

L'invention concerne un procédé de montage/démontage de composants de turbine, selon lequel une grue (5) est fixée à un demi-carter de turbine (3) dans la zone du joint (11) et au moins un composant (4) tel qu'une aube de turbine par exemple est amené dans sa position d'installation ou écarté de sa position d'installation au moyen de la grue (5). À cet effet, la grue (5) comporte un mât (6) muni d'une flèche (7) constituée de plusieurs segments (8), permettant ainsi un positionnement précis du composant (4) en vue de son montage/démontage. La grue mobile (5) est reliée au demi-carter de turbine (3) au moyen d'un adaptateur (12). Ledit adaptateur (12) comprend un boulon de fixation (20) qui est fixé à travers un trou traversant existant du demi-carter de turbine (3). Pour le montage de la grue mobile (5), l'adaptateur (12) comprend une plaque de base (15). Afin d'assurer la sécurité antirotation de la grue (5), un élément de sécurité (26) est de préférence prévu.
EP18702064.9A 2017-01-11 2018-01-08 Procédé de montage et/ou de démontage de composants d'une turbine comportant un carter de turbine, adaptateur et système à utiliser dans le procédé Active EP3538745B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017200367.7A DE102017200367A1 (de) 2017-01-11 2017-01-11 Verfahren zur Montage und/oder Demontage von Komponenten einer ein Turbinengehäuse aufweisenden Turbine, Adapter und System zur Verwendung in dem Verfahren sowie Verwendung eines Adapters
PCT/EP2018/050323 WO2018130479A1 (fr) 2017-01-11 2018-01-08 Procédé de montage et/ou démontage de composants d'une turbine comportant un carter de turbine, adaptateur, système à utiliser dans le procédé et utilisation d'un adaptateur

Publications (2)

Publication Number Publication Date
EP3538745A1 true EP3538745A1 (fr) 2019-09-18
EP3538745B1 EP3538745B1 (fr) 2021-02-24

Family

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EP18702064.9A Active EP3538745B1 (fr) 2017-01-11 2018-01-08 Procédé de montage et/ou de démontage de composants d'une turbine comportant un carter de turbine, adaptateur et système à utiliser dans le procédé

Country Status (6)

Country Link
US (1) US11359514B2 (fr)
EP (1) EP3538745B1 (fr)
KR (1) KR102319059B1 (fr)
CN (1) CN110168201B (fr)
DE (1) DE102017200367A1 (fr)
WO (1) WO2018130479A1 (fr)

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Publication number Priority date Publication date Assignee Title
DE102017200367A1 (de) 2017-01-11 2018-07-12 Siemens Aktiengesellschaft Verfahren zur Montage und/oder Demontage von Komponenten einer ein Turbinengehäuse aufweisenden Turbine, Adapter und System zur Verwendung in dem Verfahren sowie Verwendung eines Adapters
FR3076236B1 (fr) * 2017-12-28 2019-12-06 Safran Aircraft Engines Outil de demontage d'une piece annulaire de turbomachine, procede de demontage et de reassemblage associes
CN115370424A (zh) * 2021-05-21 2022-11-22 中国航发商用航空发动机有限责任公司 用于涡轮静子导叶的固定装置及安装方法
CN113431703B (zh) * 2021-06-30 2022-07-12 中国航发动力股份有限公司 一种多层装配结构的复合装配方法

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DE102017200367A1 (de) 2017-01-11 2018-07-12 Siemens Aktiengesellschaft Verfahren zur Montage und/oder Demontage von Komponenten einer ein Turbinengehäuse aufweisenden Turbine, Adapter und System zur Verwendung in dem Verfahren sowie Verwendung eines Adapters

Also Published As

Publication number Publication date
CN110168201A (zh) 2019-08-23
US11359514B2 (en) 2022-06-14
US20190360361A1 (en) 2019-11-28
EP3538745B1 (fr) 2021-02-24
DE102017200367A1 (de) 2018-07-12
WO2018130479A1 (fr) 2018-07-19
CN110168201B (zh) 2022-01-25
KR20190098264A (ko) 2019-08-21
KR102319059B1 (ko) 2021-11-01

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