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EP3559471B1 - Ensemble pompe et réacteur nucléaire équipé d'un tel ensemble pompe - Google Patents

Ensemble pompe et réacteur nucléaire équipé d'un tel ensemble pompe Download PDF

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Publication number
EP3559471B1
EP3559471B1 EP17821871.5A EP17821871A EP3559471B1 EP 3559471 B1 EP3559471 B1 EP 3559471B1 EP 17821871 A EP17821871 A EP 17821871A EP 3559471 B1 EP3559471 B1 EP 3559471B1
Authority
EP
European Patent Office
Prior art keywords
valve
pump arrangement
pump
valve body
arrangement according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP17821871.5A
Other languages
German (de)
English (en)
Other versions
EP3559471A1 (fr
Inventor
Christoph Jäger
Paul Scherer
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.)
KSB SE and Co KGaA
Original Assignee
KSB SE and Co KGaA
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 KSB SE and Co KGaA filed Critical KSB SE and Co KGaA
Publication of EP3559471A1 publication Critical patent/EP3559471A1/fr
Application granted granted Critical
Publication of EP3559471B1 publication Critical patent/EP3559471B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
    • F04D15/0022—Control, e.g. regulation, of pumps, pumping installations or systems by using valves throttling valves or valves varying the pump inlet opening or the outlet opening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0077—Safety measures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
    • F04D7/08—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being radioactive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/50—Inlet or outlet
    • F05D2250/52—Outlet

Definitions

  • the invention relates to a pump arrangement for the arrangement on a nuclear reactor and for conveying the transfer liquid heated in the reactor, with a motor part and a pump part having a housing.
  • the invention also relates to a nuclear reactor with such a pump arrangement.
  • Such pumps are used, for example, in the environment of nuclear reactors, including reactors for small power ranges (small modular reactors). These reactors are often equipped with a number of pump assemblies distributed over the circumference serving as circulation pumps. In most cases, the motor is arranged vertically above or below the pump part, in some cases a horizontal design of the pump can also be found. Each pump arrangement has its own pressure housing, which is connected to the pressure housing of the reactor via an inlet and outlet line. In the case of pressurized water reactors, the pumps serve to convey the transfer liquid heated in the reactor in a closed circuit through a steam generator designed as a heat exchanger. In boiling water reactors, these pumps ensure internal circulation within the primary circuit.
  • a circulation water pump for nuclear reactors which is provided with a relatively complex non-return valve in the form of flaps closing off a flow channel.
  • the object of the invention is to provide a pump arrangement by means of which the disadvantages described are to be avoided.
  • the use of complex and thus expensive components should be avoided.
  • a diffuser arranged in an interior of the housing and a valve device arranged in the interior of the housing, an opening of the diffuser being designed as a valve seat for a valve body of the valve device.
  • valve device By using a valve device, the valve body of which interacts with the diffuser as a valve seat, a complex and expensive backstop can be dispensed with. Since the valve device prevents a backflow into the pump housing and thus the reverse rotation, the volumetric losses in the pumps that are still running are completely avoided.
  • the valve device advantageously comprises a valve cage, a valve spring arranged in the valve cage and a valve body which is arranged displaceably in the valve cage and is acted upon by a spring force by the valve spring. This enables a non-return valve that is easy to manufacture and can be easily preassembled.
  • valve device For an undisturbed flow of flow, the valve device is arranged opposite the opening of the diffuser in a pot-like area of the housing. Thus, in the open state of the valve device, the flow path can be completely released.
  • the housing advantageously has a base body which has a step that is created by reinforcing the wall of the base body inwardly into the interior, the valve cage having an annular collar extending in the radial direction which is attached to the Level of the base body comes to rest.
  • At least one axial bore is formed in the ring collar of the valve cage, in which at least one tube is inserted which extends into a recess in the ring of the diffuser. Every time the valve device is switched, pressure equalization takes place via the axial bore, tube and recess. As a result, due to the pressure difference between the inflow and outflow side of the pump, an additional force to the flow pulse is applied to the valve piston, which force keeps the valve device open during operation of the pump.
  • valve cage has a base that is connected to the annular collar via a guide wall.
  • the valve body in turn has a sealing surface facing the diffuser and an annular wall extending from the sealing surface towards the bottom of the valve cage, which enables the valve body to tilt on the one hand and low-friction switching of the valve device on the other hand.
  • valve body is mushroom-shaped or step-shaped, the sealing surface extending radially beyond the ring wall. Due to the mushroom-like or stepped design of the valve body, depending on the respective diameter, an additional closing force dependent on the pressure difference generated by the pumps in operation can be applied via an annular differential area that is created by the protrusion
  • the valve cage has a through-hole in the base through which a guide rod extends. In the valve body is a blind hole is provided into which the guide rod protrudes for the reliable guidance of the valve body.
  • Another object of the invention is to provide a nuclear reactor with improved efficiency
  • the nuclear reactor has a pump arrangement according to the invention to solve the problem.
  • Fig. 1 shows a reactor 1, on which pump arrangements 2 according to the invention, preferably evenly distributed over the outer circumference, are attached for conveying transfer fluid heated in the reactor.
  • FIG. 2 shows an exemplary embodiment of the pump arrangement 2 according to the invention.
  • the pump arrangement 2 has a pump part 3 and a motor part 4, which are coupled to one another by means of a connecting element 5.
  • a drive (not shown), usually an electric motor or canned electric motor through which a cooling medium flows, is accommodated in the motor part 4. Its output shaft 6 extends through the connecting element 5 into the pump part 3. If necessary, a flywheel can be arranged on the output shaft 6 within the connecting element 5, which flywheel briefly maintains the pumping activity if the drive fails.
  • the pump part 3 comprises a housing 7 with hydraulic parts arranged therein, which are described in more detail below.
  • the housing 7 has an essentially cylindrical base body 8 with a central longitudinal axis X which coincides with the axis of rotation of the output shaft 6.
  • the base body 8 is closed on the side facing away from the engine by means of a curved base 9.
  • the bottom 9 of the housing 7 is formed by an essentially spherical segment-shaped dome area 10 and a rim area 11 that forms the transition area between the base body 8 and the dome area 10.
  • the housing 7 is closed by a cover element 12, a central opening 13 being provided in the cover element 12, through which the output shaft 6 extends into an interior 14 of the housing 7.
  • the base body 8 is provided on the side opposite the base 9 with a ring-like connection device 15 which protrudes in the axial direction and forms a step 16 on the end face of the base body 8.
  • connection device 15 By means of threaded bores (not shown) in the connection device 15 and screws or threaded rods, the base body 8 is connected to the in Fig. 2 engine part 4 shown and the connecting element 5 connectable.
  • the cover element 12 is on the in Fig. 2
  • the connecting element 5 shown is attached and, in the assembled state, lies against the step 16 and separates the hydraulic flow space, that is to say the interior space 14 in the pump housing 7, from the connecting element 5 located above it.
  • the extension of the cover element 12 in the axial direction essentially corresponds to the axial extension of the connection device 15. Sealing elements (not shown) ensure the necessary tightness of the components.
  • a fluid guide device 17 protrudes from above into the interior space 14 and at least partially surrounds the output shaft 6 and an impeller 18 attached to it.
  • the holding devices 12a, the cover element 12 and the fluid guide device 17 are preferably formed in one piece.
  • a diffuser 19 is attached to the free end of the fluid guide device 17 protruding downward into the interior space 14 and extends further down into the interior space 14. The connection point between the fluid guide device 17 and the diffuser 19 is stepped in order to center the diffuser 19.
  • stator blades 20 are provided for guiding the transfer fluid; on the other hand, a bearing receptacle 21 is realized in the interior of the diffuser 19, which is held concentrically in the diffuser 19 by the stator blades 20. Additionally or alternatively, the bearing receptacle 21 can be held concentrically in the diffuser 19 by means of ribs 22.
  • an opening 24 is provided at the lower end of the bearing receptacle 21 facing away from the impeller 18.
  • the end of the diffuser 19 facing away from the fluid guide device 17 has an opening 25 and is provided with a ring 26 extending in the radial direction, which rests largely on the inside of the base body 8 and transforms the interior space 14 into a space above the ring 26 by means of sealing elements (not shown) Annulus 27 divides with an inflow area 28 and an outflow area 29 below.
  • the base body 8 of the housing 7 is provided on a side wall with a fastening stub 30 which can be connected to the reactor jacket in a pressure-tight manner.
  • the horizontal inflow and outflow of the pump arrangement takes place within the fastening stub 30.
  • the fastening stub 30 is designed similar to a double-walled tube.
  • the fastening stub 30 has a passage 31 through which fluid to be conveyed can flow into the inflow area 28 via an inflow opening 32 or out of the outflow area 29 via an outflow opening 33.
  • the interior 14 has a pot-like area 34 in which a valve device 35 in the form of a non-return valve is arranged.
  • the valve device 35 comprises a valve cage 36, a valve spring 37 and a piston-like valve body 38.
  • the valve spring 37 is supported on the valve cage 36 and acts on the valve body 38 with a spring force in the direction of the diffuser 19.
  • the base body 8 has a Step 39, which is created by reinforcing the wall of the base body 8 inwards into the interior space 14.
  • the valve cage 36 has, on the side facing away from the spherical region 10 of the pump housing 7, an annular collar 40 which extends in the radial direction and which comes to rest on the step 39 of the base body 8. Screws, not shown, extend through bores, also not shown, formed in the annular collar 40, which are screwed into threaded bores (not shown) in the step 39 and connect the valve cage 36 to the base body 8 of the housing 7.
  • the valve cage 36 which is arranged concentrically to the central longitudinal axis X, has a bottom 41 facing the dome area 10, which is connected to the annular collar 40 via a guide wall 42.
  • At least one bore 43 extends in the axial direction through the valve cage 36.
  • at least two bores 43 extend through the bottom 41.
  • a disk-like projection 44 projecting into the interior of the valve cage 36 is provided for holding and guiding the valve spring 37.
  • at least one axial bore 45 running parallel to the central longitudinal axis X is formed.
  • a tube 46 is inserted, which extends upward into a recess 47 aligned with the at least one axial bore 45 in the ring 26 arranged at the free end of the diffuser 19 and the inflow area 28 with the area 34 of the interior 14 connects.
  • the cup-like valve body 38 has a sealing surface 48 facing the diffuser 19 and an annular wall 49 extending from the sealing surface 48 in the direction of the base 41.
  • the sealing surface 48 has a curvature pointing in the direction of the diffuser 19.
  • the valve body 38 is arranged so that it can move axially in the valve cage 36 along the guide wall 42.
  • the valve body 38 has a disk-like projection 50 for holding and guiding the valve spring 37.
  • the edge of the opening 25 in the diffuser 19 forms the valve seat for the valve body 38.
  • the Fig. 3 shows the pump part 3 during the regular operation of the pump arrangement 2.
  • the transfer fluid flows, caused by the rotation of the output shaft 6 and thus the impeller 18, into the inflow area 28. From there, the horizontally directed inflow is deflected and directed vertically upwards and through the base body 8, diffuser 19, fluid guide device 17 formed annular space 27 promoted.
  • the fluid flows from the annular space 27 to the cover element 12, which is designed as a bend on the side facing the interior space 14, and from there is deflected radially symmetrically downwards into the interior of the fluid guide device 17 to the impeller 18. Under increased pressure, the fluid flows through a further annular space 51, which is defined in the interior of the diffuser 19 by the bearing seat 22 and the wall of the diffuser 19, into the outflow area 29.
  • the flow is deflected in a horizontal direction and the fluid then flows through the discharge opening to the reactor.
  • the valve body 38 is pushed completely into the valve cage 36 and completely releases the flow path.
  • the valve body 38 forms to the Flow-guiding areas of the ring collar 40 have no shoulder or step.
  • the sealing surface 48 also represents a flow-guiding contour. With this arrangement, the open valve device 35 does not cause any flow resistance.
  • the Fig. 4 shows the pump part 3 when the pump arrangement 2 is at a standstill.
  • the force of the valve spring 37 acting on the valve body 38 is greater than the pressure force of the water column above the valve body 38.
  • the valve body 38 is pressed against the valve seat formed by the edge of the opening 25 in the diffuser 19.
  • fluid can flow from the annular space 27 through the tube 46 and the at least one bore 43 in the base 41 into the interior of the valve body 38 and valve cage 36 and support the closing movement of the valve body 38.
  • the cover element 12 has an area with a greater radial extent than in the figures shown and described above.
  • the axial extent of the connection device 15 is smaller than in the embodiment in FIG Fig. 3 .
  • a region of the cover element 12 extends over the connection device 15 of the base body 8.
  • the valve body 38 in FIG Fig. 5 The embodiment shown is designed like a mushroom head or stepped.
  • the sealing surface 48 extends radially beyond the annular wall 49.
  • an axial recess 52 is provided, in which the radially protruding sealing surface 48 is received when the valve body 38 is pushed into the valve cage 36.
  • a first partial area 53 of the cover element 12 rests against the step 16. In the radial direction, between the partial area 53 and the connection device 15 of the housing 7, a part 54 of the in the Figure 1 connecting element 5 shown is arranged. A second partial area 55 of the cover element 12 extends at least partially into the interior space 14 of the housing 7. It goes without saying that each variant of the cover element 12 shown can be used with appropriately adapted dimensions on all the housings 7 shown.
  • the valve cage 36 has a through bore 56 which is arranged concentrically to the central longitudinal axis X and which is designed as a stepped bore.
  • the through-hole 56 has an area 57 with a reduced inner diameter and an area 58 with an enlarged inner diameter.
  • a guide rod 59 extends through the through hole 56 and has an area 60 with a reduced outside diameter, which is assigned to the area 57 with a reduced inside diameter, and an area 61 with an enlarged outside diameter, which is assigned to the area 58 with an enlarged inside diameter .
  • the free end of the guide rod 59 which extends in the direction of the dome region 10 of the housing 7, is provided with a thread onto which a nut 62 can be screwed.
  • the area 61 of the guide rod 59 having the enlarged outer diameter is pressed in the axial direction against the area 57 of the through hole 56, which has the reduced inner diameter, and the guide rod 59 is held securely.
  • the bottom 41 has, on the side opposite the nut 62, a trough-like region 63 in which the valve spring 37 is arranged.
  • the at least one bore 43 extends in the radial direction through the valve cage 36. In the present embodiment, the at least one bore 43 extends through the guide wall 42 of the valve basket 36. In a variant not shown in the Fig. 6 The embodiment shown can extend the at least one bore 43 in the axial direction, as shown, inter alia, in FIG Fig. 3 shown, or extend in an oblique direction through the bottom 41 of the valve cage 36.
  • the valve body 38 is designed like a mushroom head, the projection 50 extending in the direction of the base 41 extending as far as the trough-like region 63 in the closed state of the valve device 35.
  • the projection 50 has a conically running section 64 and a cylindrical section 65.
  • a blind hole 66 is provided, into which the guide rod 59 protrudes, whereby the valve body 38 can be reliably guided during its axial movement.
  • the fluid flows in the pump part 3 into the inflow area 28, from there through the annular space 27, then through the bend formed in the cover element 12 into the annular space 51 inside the diffuser 19 through the bearing seat 21 and the Wall of the diffuser 19 is formed, and finally into the outflow area 29.
  • the valve body 38 is pressed completely into the valve cage 36 by the impulse of the flow.
  • the fluid initially present inside the valve device 35 escapes through the at least one bore 43 and the at least one axial bore 45 into the outflow area 29 and is then led out of the pump housing 7 via the outflow opening 33, together with the fluid present in the outflow area 29.
  • valve body 38 When the impeller 18 is stationary, the valve body 38 is urged by the valve spring 37 in the direction of the diffuser 19 against the valve seat formed by the edge of the opening 25. In this case, fluid can flow from the outflow area 29 through at least one axial bore 45 required for pressure equalization and the at least one bore 43 into the interior of the valve device 35.

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

Claims (10)

  1. Agencement de pompe (2) destiné à être agencé sur un réacteur nucléaire et pour le transport de liquide porteur chauffé dans le réacteur, muni d'une partie moteur (4) et d'une partie pompe (3) comprenant un boîtier (7),
    caractérisé par
    un diffuseur (19) agencé dans un espace intérieur (14) du boîtier (7) et un dispositif soupape (35) agencé dans l'espace intérieur (14) du boîtier (7),
    une ouverture (25) du diffuseur (19) étant configurée sous la forme d'un siège de soupape pour un corps de soupape (38) du dispositif soupape (35).
  2. Agencement de pompe selon la revendication 1, caractérisé en ce que le dispositif soupape (35) comporte une cage de soupape (36), un ressort de soupape (37) agencé dans la cage de soupape (36) et un corps de soupape (38), agencé de manière à pouvoir se déplacer dans la cage de soupape (36), sollicité par le ressort de soupape (37) avec une force de ressort.
  3. Agencement de pompe selon la revendication 1 ou 2, caractérisé en ce que le dispositif soupape (35) est agencé en vis-à-vis de l'ouverture (25) du diffuseur (19) dans une zone de type pot (34) du boîtier (7).
  4. Agencement de pompe selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le boîtier (7) comprend un corps de base (8), qui dispose d'un palier (39) formé par un épaississement de la paroi du corps de base (8) vers l'intérieur dans l'espace intérieur (14), et en ce que la cage de soupape (36) comprend un collet annulaire (40) s'étendant en direction radiale, qui entre en application sur le palier (39) du corps de base (8).
  5. Agencement de pompe selon l'une quelconque des revendications 2 ou 4, caractérisé en ce qu'au moins un alésage axial (45) est formé dans le collet annulaire (40) de la cage de soupape (36), dans lequel au moins un tube (46) est inséré, qui s'étend dans une cavité (47) dans un anneau (26) agencé à l'extrémité libre du diffuseur (19).
  6. Agencement de pompe selon l'une quelconque des revendications 2 à 5, caractérisé en ce que la cage de soupape (36) comprend un fond (41), qui est relié avec le collet annulaire (39) par l'intermédiaire d'une paroi de guidage (42).
  7. Agencement de pompe selon l'une quelconque des revendications 2 à 6, caractérisé en ce que le corps de soupape (38) dispose d'une surface d'étanchéité (48) tournée vers le diffuseur (19) et d'une paroi annulaire (49) s'étendant à partir de la surface d'étanchéité (48) en direction du fond (41) de la cage de soupape (36) .
  8. Agencement de pompe selon l'une quelconque des revendications 2 à 7, caractérisé en ce que le corps de soupape (38) est configuré en forme de tête de champignon ou en forme de palier, la surface d'étanchéité (48) s'étendant radialement au-delà de la paroi annulaire (49).
  9. Agencement de pompe selon la revendication 8, caractérisé en ce que la cage de soupape (38) comprend un alésage de passage (56) dans le fond (41), au travers duquel une tige de guidage (59) s'étend, et en ce qu'un trou borgne (66) est prévu dans le corps de soupape (38), dans lequel la tige de guidage (59) s'enfonce pour le guidage du corps de soupape (38).
  10. Réacteur nucléaire (1), caractérisé par un agencement de pompe (2) selon l'une quelconque des revendications 1 à 9.
EP17821871.5A 2016-12-20 2017-12-15 Ensemble pompe et réacteur nucléaire équipé d'un tel ensemble pompe Active EP3559471B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016225533.9A DE102016225533B4 (de) 2016-12-20 2016-12-20 Pumpenanordnung und Nuklearreaktor mit einer solchen Pumpenanordnung
PCT/EP2017/083006 WO2018114660A1 (fr) 2016-12-20 2017-12-15 Ensemble pompe et réacteur nucléaire équipé d'un tel ensemble pompe

Publications (2)

Publication Number Publication Date
EP3559471A1 EP3559471A1 (fr) 2019-10-30
EP3559471B1 true EP3559471B1 (fr) 2021-01-27

Family

ID=60813838

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17821871.5A Active EP3559471B1 (fr) 2016-12-20 2017-12-15 Ensemble pompe et réacteur nucléaire équipé d'un tel ensemble pompe

Country Status (4)

Country Link
EP (1) EP3559471B1 (fr)
CN (1) CN110073110B (fr)
DE (1) DE102016225533B4 (fr)
WO (1) WO2018114660A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109340183A (zh) * 2018-09-21 2019-02-15 中广核研究院有限公司 一种核反应堆冷却剂泵及其泵壳结构
CN109340184A (zh) * 2018-09-21 2019-02-15 中广核研究院有限公司 一种核反应堆冷却剂泵及其防倒流泵壳结构
CN113982909A (zh) * 2021-10-22 2022-01-28 中国原子能科学研究院 反应堆、泵支承组件以及动力泵的冷却系统

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Publication number Priority date Publication date Assignee Title
AT309232B (de) * 1971-12-03 1973-08-10 Andritz Ag Maschf Kreislaufwasserpumpe
US4396350A (en) 1980-12-24 1983-08-02 Kinney Calvin L Pump isolation valve
IT1213377B (it) * 1986-11-11 1989-12-20 Marelli Componenti Elettrodome Pompa a piu' stati per elettropompa sommersa.
DE602005004016D1 (de) * 2005-05-31 2008-02-07 Pedrollo Spa Zentrifugaltauchpumpe
DE602005008744D1 (de) * 2005-09-23 2008-09-18 Coprecitec Sl Entleerungspumpe eines Haushaltsgerätes
JP5189403B2 (ja) * 2008-05-08 2013-04-24 国立大学法人信州大学 逆流防止装置
CN104265646A (zh) * 2014-07-31 2015-01-07 苏州淮通电气有限公司 出水压力可调潜水泵
CN105736388A (zh) * 2016-02-29 2016-07-06 蒋燕群 一种自控高效自吸泵

Non-Patent Citations (1)

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Title
None *

Also Published As

Publication number Publication date
EP3559471A1 (fr) 2019-10-30
CN110073110A (zh) 2019-07-30
CN110073110B (zh) 2021-06-04
DE102016225533A1 (de) 2018-06-21
DE102016225533B4 (de) 2018-11-22
WO2018114660A1 (fr) 2018-06-28

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