WO2012005134A1 - ボールバルブ - Google Patents

ボールバルブ Download PDF

Info

Publication number
WO2012005134A1
WO2012005134A1 PCT/JP2011/064678 JP2011064678W WO2012005134A1 WO 2012005134 A1 WO2012005134 A1 WO 2012005134A1 JP 2011064678 W JP2011064678 W JP 2011064678W WO 2012005134 A1 WO2012005134 A1 WO 2012005134A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
valve body
seat ring
ring
ball valve
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.)
Ceased
Application number
PCT/JP2011/064678
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
誠夫 楯野
也寸志 竹内
雅裕 田中
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.)
Nippon Ball Valve Co Ltd
Original Assignee
Nippon Ball Valve Co Ltd
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 Nippon Ball Valve Co Ltd filed Critical Nippon Ball Valve Co Ltd
Priority to CN201180034098.7A priority Critical patent/CN102985731B/zh
Publication of WO2012005134A1 publication Critical patent/WO2012005134A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • F16K5/0663—Packings
    • F16K5/0689—Packings between housing and plug
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/08—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
    • F16K11/087—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with spherical plug
    • F16K11/0873—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with spherical plug the plug being only rotatable around one spindle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • F16K31/041—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/08—Details
    • F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
    • F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
    • F16K5/201—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces with the housing or parts of the housing mechanically pressing the seal against the plug

Definitions

  • the present invention is a so-called non-sliding type ball valve which reduces the operating torque of the valve by causing the seat ring pressed against the valve body to move away from the valve body when opening and closing the valve part.
  • the invention relates to a ball valve with increased appropriateness for switching pipelines.
  • a ball valve metal touch ball which presses a seat ring against a valve body (ball) inserted into a valve chamber to close a sliding gap on the outer periphery of the valve body and blocks communication between the valve chamber and the port via the sliding gap
  • a ball valve metal touch ball
  • there are some which make the seat ring move away from the valve body when opening and closing the valve portion to reduce the operating torque of the valve for example, see Patent Document 1 below.
  • the seat ring has a piston structure so that pressing on the valve body and pulling away from the valve body can be performed by fluid pressure.
  • Two pressure chambers that apply fluid pressure in opposite directions to the seat ring are formed on the outer periphery of the seat ring, and when fluid pressure is introduced into one pressure chamber, the seat ring is pressed against the valve body, When fluid pressure is introduced into the other pressure chamber, the seat ring separates from the valve body.
  • the seat ring is separated from the valve body when the opening and closing operation is performed.
  • Metal touch ball valves are widely used for pneumatic transport equipment of particulates, but in pneumatic transport of particulates, particulates being transported from the gap created between the two when the seat ring separates from the valve body There is a concern that the fuel may leak and bite into a sliding gap or the like, and this has led to the use of a non-sliding type ball valve in pneumatic transportation of powder and granular materials.
  • the present invention prevents the leakage of particulate matter from the gap between the seat ring and the valve body, which is a concern when using a ball valve of a type in which the seat ring is in contact with and separated from the valve body for pneumatic transport of particulate matter. It is an object of the present invention to eliminate the phenomenon that the leaked granular material bites into the sliding gap of the valve body and the like.
  • this invention has a seat ring which presses against the valve body in a valve chamber, and seals a sliding crevice on the outer periphery of a valve body, and the seat ring is made to separate from the valve body.
  • a ball valve that performs opening and closing operations is provided with a purge ring that jets air supplied from the outside toward the gap, surrounding the outer periphery of the gap generated between the valve body and the seat ring separated from the valve body.
  • the valve chamber is provided inside the valve body, and the purge ring is arranged in the valve chamber so as not to impede the movement of the valve body.
  • Such ball valves can be considered as listed below as specific embodiments.
  • the seat ring is provided only between the valve chamber and the port on the inlet side, and the purge ring is installed on the outer periphery of the position where the seat ring abuts on the valve body.
  • the seat rings are provided between the valve chamber and the port on the inlet side and between the valve chamber and the ports on the outlet side (where the number is n, n is an integer including 1)
  • the said purge ring was each installed in the outer periphery of the position where it abuts on the said valve body.
  • a pressure chamber is provided between the seat ring and the valve body to exert a fluid pressure on the seat ring, and the pressure of the fluid introduced into the pressure chamber causes the seat ring to be at least a valve body To promote in the direction away from.
  • a multi-way valve provided with three or more ports.
  • the multi-way valve referred to here is a three-way valve, a four-way valve or the like having three or more ports to which connection is switched.
  • the pressing of the seat ring against the valve body can also be performed by applying fluid pressure to the seat ring.
  • two pressure chambers are provided for each seat ring, and the introduction of fluid pressure introduced into each pressure chamber is switched to selectively generate thrust in opposite directions on the seat ring. Leave it.
  • the pressing of the seat ring against the valve body can also be performed by the force of an elastic body. If the elastic body is compressed when the seat ring is propelled by the fluid pressure introduced into the pressure chamber to move away from the valve body, the elastic restoring force of the elastic body when the pressure chamber is depressurized is used. The seat ring can be pressed against the valve body.
  • the ball valve according to the present invention is provided with a purge ring that blows air into the valve chamber, and injects air toward a gap formed between the valve body and the seat ring when the seat ring separates the valve body. Can.
  • FIG. 6 is a cross-sectional view showing another example of the ball valve of the present invention along a plane parallel to the axis of the port and also parallel to the axis of the valve body
  • FIG. 6 is a cross-sectional view showing still another example of the ball valve according to the present invention along a plane parallel to the axis of the port and perpendicular to the axis of the valve disc
  • the ball valve 1 of the first embodiment is configured as a two-way valve, and includes a valve body 2, a bonnet 3, a valve body (ball) 4, a seat ring 5, a seat receiver 6, a torque actuator 7, and the present invention
  • the purge ring 8 that characterizes is combined.
  • the valve body 2 has a valve chamber 9 and two ports 10 -1 and 10 -2 provided coaxially with the valve chamber interposed therebetween, and the valve body 4 is inserted into the valve chamber 9 There is.
  • the valve body 4 is disposed at a position orthogonal to the axis of the valve hole 11 communicating the ports 10 -1 and 10 -2 with the axis of the valve hole and at a position shifted by 180 ° with respect to the center of the valve hole It has two spindles 12 -1 and 12 -2 .
  • Support shaft 12 -1, bearing 13 -1 Thus assembled the bonnet 3, the support shaft 12 -2, the bearing 13 -2 assembled to the valve body 2, respectively supported, the extension of the support shaft 12 -1 It is drawn out of the bonnet 3 as an input part, and the output shaft of the torque actuator 7 is connected there.
  • Reference numerals 14 -1 and 14 -2 in FIG. 1 denote thrust bearings.
  • the seat ring 5 is incorporated in the port 10 -1 .
  • the seat ring 5 is composed of the side facing the valve chamber 9 small diameter, as a ring piston combined with the opposite side to the large diameter, and is slidably inserted into the port 10 -1.
  • the opening of the port 10 -1 and seat holder 6 is screwed, the seat ring 5 is held in the port 10 in -1 by the sheet receiver 6.
  • the small diameter portion and the outer diameter of the large diameter portion are respectively sealed by O-rings, and further, the small diameter portion of the tip of the sheet receiver 6 inserted inside the large diameter portion and the inner circumference of the large diameter portion.
  • the interface between is also sealed with an O-ring.
  • the end surface faces the position of the large diameter side of the position and the seat ring 5 that the stepped surface of the outer periphery of the seat ring 5 faces the pressure chamber 15 -1 which is hermetically sealed respectively 15 -2 are produced .
  • a fluid pressure such as air pressure is introduced to the pressure chambers 15 -1 and 15-2 via a solenoid valve (not shown).
  • a solenoid valve not shown.
  • the illustrated torque actuator 7 is pneumatically driven. By switching the air introduction state, the drive direction is reversed, and the valve body 4 is rotated from the valve opening position to the valve closing position or vice versa.
  • the purge ring 8 is formed by providing a large number of small injection holes (not shown) at an appropriate interval on the inner peripheral side of the hollow pipe.
  • the injection hole may be a slit continuous in the circumferential direction, a slit intermittently arranged in the circumferential direction, or the like, and is not limited to the small hole.
  • the purge ring 8 is disposed in the valve chamber 9 so as to surround the outer periphery of a gap g (see FIG. 3) generated between the valve body 4 and the seat ring 5 separated from the valve body.
  • An air inlet 16 is provided in the valve body 2, and air supplied from the outside flows from the inlet 16 into the purge ring 8 and is jetted from the injection hole of the purge ring 8 toward the gap g. .
  • the portion (such as standing pipe portion and the inclined pipe portion) flows toward the upper port 10 -1 (inlet) port 10-2 is incorporated in the direction to be lower (outlet).
  • the ball valve 1 separates the seat ring 5 from the valve body 4 to switch the open / close state. At that time, a gap g shown in FIG. 4 is formed between the valve body 4 and the seat ring 5.
  • the granular material When the granular material is transported on an air stream and the gap g is created, the granular material tries to leak out from the clearance together with the air for transportation. Therefore, air is ejected from the purge ring 8 to prevent leakage from the gap g.
  • the ball valve 1 shown in FIG. 1 has port 10 -1 up and port 10 -2 down, and the powder particles pass from port 10 -1 to port 10 -2. Is provided only on the inlet side, and there is no seat ring and purge ring on the outlet side.
  • Figure 5 is a ball valve of the second embodiment, even in the port 10-2 side becomes the outlet, which is provided to the port 10 -1 side the same seat ring 5 and the seat holder 6 and the purge ring 8 and the sheet Pressure chambers 15 -1 and 15 -2 for applying thrust to the ring 5 are provided.
  • the ball valve 1 of the second embodiment has no directionality of assembly, and the same function is exhibited no matter which of the ports 10 -1 and 10 -2 is set as the inlet, so that erroneous assembly does not occur.
  • the attitude of the ball valve 1 of the second embodiment is not limited when assembled to the pipeline, and therefore, the ball valve 1 can be assembled anywhere on the upstanding piping portion, the inclined piping portion, and the horizontal piping portion of the pipeline. Moreover, it can install also in the location where granular material is transported upward from the bottom.
  • FIG. 6 is a ball valve of a third embodiment configured as a three-way valve.
  • the ball body 2 is provided with three ports.
  • the port 10-1 to 10-3 the port 10-1 is used as an inlet, and the ports 10-2 , 10-3 are used as a branch outlet.
  • the seat ring 5 similar to the one provided on the port 10-1 side of the ball valve in FIG. 1, the seat receiver 6, the purge ring 8, and the seat ring 5 for each of the ports 10 -1 to 10 -3
  • the ball valve 1 of FIG. 6 is configured as a valve having a branch angle of 45 °, and when the valve body 4 is rotated in the clockwise direction by 67.5 ° from the position of the figure, the ports 10 -2 and 10 -3 are ports. When it is separated from 10 -1 and the valve body 4 is further rotated clockwise therefrom by 67.5 ° (135 ° from the position of FIG. 6), the port 10 -1 communicates with the port 10 -3 .
  • the switching of the connection is performed by separating each seat ring 5 from the valve body 4. At this time, air is jetted from the purge ring 8 to prevent the leakage of the powder.
  • the present invention can also be applied to a three-way valve having a branch angle of 60 °, a four-way valve having a larger number of ports, and the like.
  • the pressing of the seat ring 5 against the valve body 4 can also be performed by the force of an elastic body.
  • an elastic body such as a disc spring is incorporated into the atmosphere chamber and the elastic body propels the seat ring 5 by fluid pressure to separate from the valve body 4. if so as to be compressed, the seat ring 5 by an elastic restoring force of the elastic body when the pressure chamber 15 -1 was depressurized can be pressed against the valve body 5.
  • the illustrated ball valve has all the seat rings 5 formed of metal
  • the ball valve provided with a seat ring whose contact portion with the valve body 4 is formed of an elastic body such as rubber is also the invention.
  • valve body 2 and the bonnet 3 are formed of cast stainless steel
  • valve body 4, the seat ring 5, the sheet receiver 6, and the purge ring 8 are formed of stainless steel, respectively. It is not an essential requirement that the material of the component of is stainless steel.
  • valve body 3 bonnet 4 valve body 5 seat ring 6 seat receiver 7 torque actuator 8 purge ring 9 valve chamber 10 -1 to 10 -3 port 11 valve hole 12 -1 , 12-2 spindle 13 -1 , 13 -2 bearing 12 -1, 12 -2 shaft 15 -1, 15 -2 pressure chamber 16 air inlet openings

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Taps Or Cocks (AREA)
  • Sliding Valves (AREA)
  • Fluid-Driven Valves (AREA)
  • Details Of Valves (AREA)
PCT/JP2011/064678 2010-07-09 2011-06-27 ボールバルブ Ceased WO2012005134A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201180034098.7A CN102985731B (zh) 2010-07-09 2011-06-27 球阀

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010156847A JP5508970B2 (ja) 2010-07-09 2010-07-09 ボールバルブ
JP2010-156847 2010-07-09

Publications (1)

Publication Number Publication Date
WO2012005134A1 true WO2012005134A1 (ja) 2012-01-12

Family

ID=45441117

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2011/064678 Ceased WO2012005134A1 (ja) 2010-07-09 2011-06-27 ボールバルブ

Country Status (3)

Country Link
JP (1) JP5508970B2 (enExample)
CN (1) CN102985731B (enExample)
WO (1) WO2012005134A1 (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021037442A1 (de) * 2019-08-27 2021-03-04 Vitesco Technologies GmbH Fluidventil
EP4015031A1 (en) * 2015-12-31 2022-06-22 CareFusion 303, Inc. Systems and methods for intermittent infusion
EP4411185A1 (en) * 2023-02-02 2024-08-07 Stant USA Corp. Multi-way valve with seal inserts

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101599498B1 (ko) * 2015-09-08 2016-03-15 (주)현우산업 큐폴라 밸브 개폐 제어방법 및 그 밸브 시스템
JP2017075634A (ja) * 2015-10-14 2017-04-20 日本ボールバルブ株式会社 定量供給ボールバルブ
KR101740927B1 (ko) * 2016-11-03 2017-06-15 케이피엘 밸브공업 주식회사 분체 밸브 장치
GB2588906A (en) * 2019-11-13 2021-05-19 Edwards Ltd Gas purged valve
JP7605752B2 (ja) * 2019-11-22 2024-12-24 株式会社トクヤマ トリクロロシランの製造方法及びトリクロロシランの製造装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5877976A (ja) * 1981-10-31 1983-05-11 Mitsubishi Heavy Ind Ltd ボ−ル弁における異物かみ込み防止装置
JPS59144876A (ja) * 1983-02-07 1984-08-20 Kitamura Valve Seizo Kk 弁体等の清掃装置を備えるナイフゲ−ト弁
JPS6191670U (enExample) * 1984-11-20 1986-06-13
JPH0281975U (enExample) * 1988-12-13 1990-06-25
JPH07190211A (ja) * 1993-12-27 1995-07-28 Sekisui Plastics Co Ltd 粒子用制御弁
JPH11264485A (ja) * 1998-03-17 1999-09-28 Shinko Pantec Co Ltd バルブ
JP2001235037A (ja) * 2000-02-22 2001-08-31 Dainippon Ink & Chem Inc 排出弁およびこれを用いた静電荷像現像用トナーの製造方法
JP2008045669A (ja) * 2006-08-17 2008-02-28 Sumitomo Chemical Co Ltd 円筒バルブ型三方弁

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0411573Y2 (enExample) * 1987-11-25 1992-03-23

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5877976A (ja) * 1981-10-31 1983-05-11 Mitsubishi Heavy Ind Ltd ボ−ル弁における異物かみ込み防止装置
JPS59144876A (ja) * 1983-02-07 1984-08-20 Kitamura Valve Seizo Kk 弁体等の清掃装置を備えるナイフゲ−ト弁
JPS6191670U (enExample) * 1984-11-20 1986-06-13
JPH0281975U (enExample) * 1988-12-13 1990-06-25
JPH07190211A (ja) * 1993-12-27 1995-07-28 Sekisui Plastics Co Ltd 粒子用制御弁
JPH11264485A (ja) * 1998-03-17 1999-09-28 Shinko Pantec Co Ltd バルブ
JP2001235037A (ja) * 2000-02-22 2001-08-31 Dainippon Ink & Chem Inc 排出弁およびこれを用いた静電荷像現像用トナーの製造方法
JP2008045669A (ja) * 2006-08-17 2008-02-28 Sumitomo Chemical Co Ltd 円筒バルブ型三方弁

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4015031A1 (en) * 2015-12-31 2022-06-22 CareFusion 303, Inc. Systems and methods for intermittent infusion
US11896796B2 (en) 2015-12-31 2024-02-13 Carefusion 303, Inc. Disposable intravenous (IV) set with flow control valve
WO2021037442A1 (de) * 2019-08-27 2021-03-04 Vitesco Technologies GmbH Fluidventil
EP4411185A1 (en) * 2023-02-02 2024-08-07 Stant USA Corp. Multi-way valve with seal inserts

Also Published As

Publication number Publication date
CN102985731B (zh) 2015-04-08
JP5508970B2 (ja) 2014-06-04
JP2012017826A (ja) 2012-01-26
CN102985731A (zh) 2013-03-20

Similar Documents

Publication Publication Date Title
WO2012005134A1 (ja) ボールバルブ
US6340029B1 (en) Apparatus for opening/closing a valve and method thereof
US20030196698A1 (en) Axial flow control valve
US8336849B2 (en) Conical seat shut off valve
CN102939484B (zh) 用于与旋转阀一起使用的阀轴杆装置
CN101558246A (zh) 用于将轴密封到隔膜致动器的装置
KR20170125890A (ko) 밸브에서 사용되며 비산 배출을 막을 수 있는 외부 가압된 다공성 매체 기체 베어링
JP2012522946A (ja) 内部弁と共に使用するための冗長的な金属間封止装置
FR2600744A1 (fr) Robinet d'arret et de commande d'ecoulement
CN107084276B (zh) 一种以真空为动力气源的活塞式真空同轴阀
KR20200083799A (ko) 더블 디스크 버터플라이 밸브
JP2012017826A5 (enExample)
US3165122A (en) Plug valve
WO2007136869A3 (en) Fast-acting fluid control valve
KR101624906B1 (ko) 버터플라이 밸브의 시트 구조
KR20180027089A (ko) 버터플라이밸브의 실링장치
CN110778741A (zh) 单阀座双向密封结构及球阀
CN102155548B (zh) 一种滑板阀
CN203082237U (zh) 一种在阀门中使用的密封件
CN211344094U (zh) 单阀座双向密封结构及球阀
CN118208561A (zh) 无启闭阻力蝶阀
KR101727275B1 (ko) 고압 관로 밸브 급속 개폐를 위한 콘트롤러
CN108488423A (zh) 一种多重密封增压球阀
KR200358252Y1 (ko) 소성변형 방지용 고무시트를 갖는 버터플라이밸브
KR102554382B1 (ko) 플러그 밸브

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 201180034098.7

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11803469

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11803469

Country of ref document: EP

Kind code of ref document: A1