WO2014117415A1 - 一种鱼骨斜齿形金属垫片 - Google Patents

一种鱼骨斜齿形金属垫片 Download PDF

Info

Publication number
WO2014117415A1
WO2014117415A1 PCT/CN2013/071491 CN2013071491W WO2014117415A1 WO 2014117415 A1 WO2014117415 A1 WO 2014117415A1 CN 2013071491 W CN2013071491 W CN 2013071491W WO 2014117415 A1 WO2014117415 A1 WO 2014117415A1
Authority
WO
WIPO (PCT)
Prior art keywords
tooth
gasket
angle
teeth
fishbone
Prior art date
Application number
PCT/CN2013/071491
Other languages
English (en)
French (fr)
Inventor
赵晶玮
张军
杨帆
Original Assignee
艾志（南京）环保管接技术股份有限公司
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 艾志（南京）环保管接技术股份有限公司 filed Critical 艾志（南京）环保管接技术股份有限公司
Priority to KR2020137000064U priority Critical patent/KR20140006241U/ko
Priority to US14/000,615 priority patent/US20150316150A1/en
Priority to DE212013000004U priority patent/DE212013000004U1/de
Publication of WO2014117415A1 publication Critical patent/WO2014117415A1/zh

Links

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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
    • F16J15/0818—Flat gaskets
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
    • F16J15/0806—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing characterised by material or surface treatment
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
    • F16J15/0887—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing the sealing effect being obtained by elastic deformation of the packing

Definitions

  • the invention relates to a sealing gasket, in particular to a fishbone oblique toothed metal gasket.
  • the toothed gasket is a kind of metal soft gasket, which has better sealing effect than the metal flat gasket. Generally, it is processed into a concentric 90-degree angled sawtooth groove on both sides of the metal stainless steel flat gasket by a precision lathe. Depending on the location and requirements, the toothed gasket can be made as a combination gasket with internal and external positioning rings and flexible graphite or Teflon sheets on both sides.
  • toothed gasket The advantages of the toothed gasket are suitable for high pressure and high temperature parts, strong corrosion resistance, stable and reliable sealing effect, but there are also some disadvantages: (1) The angle of 90 degrees makes the pressure open; (2) The sharp corners of the teeth are easy to damage the flange surface; (3) The metal itself has a small resilience and is basically unable to utilize the sealing compensation force generated by the fluid pressure.
  • the present invention adopts the following technical solutions:
  • a fishbone oblique toothed metal gasket having an annular toothed groove distributed in a circumferential direction of the upper and lower end faces of the gasket, the teeth of the toothed groove being integral with the metal gasket and facing the pressure source Tilted.
  • the inclination angle of the tooth is greater than 0 degrees and less than 90 degrees.
  • the contact surface of the top of the tooth and the flange is a non-sharp angle, and may be a rounded corner, a flat angle, a wavy arc angle or a combination thereof.
  • the annular toothed groove is arranged by a single-shaped tooth or a combination of a plurality of shape teeth, and may be a single circular ring or a single flat ring or a single wave ring, or may be combined with each other. Designed and designed in a uniform or non-uniform arrangement.
  • a non-metallic gasket such as graphite, Teflon, asbestos or ceramic may be attached to the upper and lower end faces of the gasket to form a combined gasket.
  • the invention has the following advantages: (1) The toothed grooves of the gasket are arranged obliquely on the annular surface to form a plurality of closed compression chambers which converge toward the pressure source in a circle, so that the pressure from the pressure source can be Class step-down, this non-open decompression chamber improves the reliability of the seal. (2) Set the top corner of the tooth to be rounded, and do not damage the flange when it comes into contact with the flange surface. It can be reused. (3) The oblique metal ring is compressed with high resilience, and the closed cavity utilizes fluid pressure to create an effective seal Compensation power to improve the reliability of the seal.
  • FIG. 1 is a schematic structural view of a conventional toothed gasket.
  • FIG. 2 is a schematic structural view of a scalloped gasket.
  • Figure 3 is a perspective view of a scalloped gasket.
  • Figure 4 is a schematic view showing the structure of a flat toothed gasket.
  • Figure 5 is a schematic illustration of the non-uniform arrangement of the scallops.
  • Figure 6 and Figure 7 are schematic diagrams of the combination of a scalloped ring and a flat toothed ring.
  • the apex angle of the gasket of the invention is non-sharp angle, and some or all of the teeth are arranged obliquely toward the pressure source, when the pressure source is inside the gasket, the teeth
  • the ring is inclined inward, as shown in Figures 2, 3 and 4, the tops of the teeth are rounded or flat, and evenly arranged, the entire gasket has a cross-section like the shape of a "fishbone".
  • Figure 5 shows the non-uniform arrangement of the scalloped rings. There can be vacant toothless areas between the ring gears to form a double-sealed or multi-seal gasket structure.
  • the gasket can also be a combination of the two structures. As shown in Figures 6 and 7, the scalloped ring and the flat-toothed ring are staggered or arranged in any combination. The elasticity of the gasket can be increased.
  • the contact with the flange surface is a circular arc or a plane, which avoids damage to the flange surface caused by the conventional sharp-angled teeth.
  • the oblique arrangement of the toothed grooves on the toroidal surface allows the pressure from the pressure source to be stepped down step by step, improving the reliability of the seal.
  • the upper and lower end faces of the gasket may be combined with a non-metallic gasket such as graphite.
  • a non-metallic gasket such as graphite.
  • the graphite on the lower side of the metal ring is in contact with the sealing member, which can increase the sealing effect and reduce the wear rate.
  • the metal toothed pad is needed.
  • the graphite on the sheet is replaced, and the metal toothed gasket can be used continuously, which improves the use efficiency and reduces the industrial use cost.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gasket Seals (AREA)

Abstract

一种鱼骨斜齿形金属垫片，垫片上下端面的圆周方向上分布有环状齿形沟槽，其中，齿形沟槽的齿与金属垫片为一个整体，并且朝着压力源的方向倾斜排列，其截面形似鱼骨，倾斜角度大于0度小于90度，并且齿的顶部与法兰的接触面为非尖角。将齿的顶部设为圆角、平角或波浪圆弧角后，避免了传统尖角齿造成对法兰面的损伤，斜齿设计提高了金属垫片的回弹性能，齿形沟槽的倾斜排列，形成多个封闭抗压腔体，使得来自压力源的压力能够逐级降压，并且封闭腔体利用流体压力，可产生有效的密封补偿力，提高密封的可靠性。

Description

一种鱼骨斜齿形金属垫片
技术领域
本发明涉及一种密封垫片， 具体涉及一种鱼骨斜齿形金属垫片。
背景技术
齿形垫片是一种金属软垫片， 其密封效果优于金属平垫， 一般是用精密的车床在金属不 锈钢平垫片的两面加工成同心的 90度夹角波形的锯齿状沟槽。 根据使用部位和要求的不同， 齿形垫片可以做成带内外定位环和两面加贴柔性石墨或聚四氟乙烯薄片的组合型垫片。
齿形垫片的优点是适用于高压、 高温部位， 耐腐蚀性强， 密封作用稳定、 可靠， 但是也 存在一些缺点： （1 ) 90度的夹角使得所受压力呈开放式； （2)齿状的尖角易损伤法兰面； （3 ) 金属自身回弹力微小， 且基本无法利用流体压力产生的密封补偿力。
发明内容
针对现有齿形垫片的不足， 本发明的目的是提供一种具有较高的回弹力及压力承载力的 垫片。
为实现上述目的， 本发明采用以下技术方案：
一种鱼骨斜齿形金属垫片， 垫片上下端面的圆周方向上分布有环状齿形沟槽， 所述齿形 沟槽的齿与金属垫片为一个整体， 并且朝着压力源的方向倾斜排列。
齿的倾斜角度大于 0度小于 90度， 当压力源在垫片内侧， 齿环就向内倾斜； 当压力源在 垫片外侧， 齿环就向外倾斜。
进一步的技术方案， 所述齿的顶部与法兰的接触面为非尖角， 可以为圆角、 平角、 波浪 圆弧角或者它们的组合。
环状齿形沟槽采用单一形状的齿或者多种形状齿的组合排列， 可以为单一圆齿环或单一 平齿环或单一波浪圆弧齿环设计， 也可以由这三种齿环相互组合设计， 并可采用均匀排列分 布或非均匀排列分布设计。
在垫片的上下端面可以加贴石墨、 聚四氟乙烯、 石棉或陶瓷等非金属垫片， 结合形成组 合式垫片。
本发明具有以下优点： （1 ) 垫片的齿形沟槽在环面上的倾斜排列， 形成一圈圈向压力源 方向收敛的多个封闭抗压腔体， 使得来自压力源的压力能够逐级降压， 这种非开放式的减压 舱能提高密封的可靠性。 （2) 将齿的顶角设为圆角， 与法兰面接触时不损伤法兰， 可重复使 用。 （3 ) 斜向金属齿环受压具有高回弹性， 而且封闭腔体利用流体压力， 可产生有效的密封 补偿力， 提高密封的可靠性。
附图说明
图 1是现有齿形垫片的结构示意图。
图 2是圆齿形垫片的结构示意图。
图 3是圆齿形垫片的立体图。
图 4是平齿形垫片的结构示意图。
图 5是圆齿环非均匀排列分布的示意图。
图 6和图 7是圆齿环和平齿环结合组成的垫片示意图。
具体实施方式
下面结合附图和实施例对本发明做进一步详细地说明。
与图 1现有的尖角垫片不同， 本发明垫片的齿顶角为非尖角， 并且部分齿或全部齿都朝 着压力源的方向倾斜排列， 当压力源在垫片内侧，齿环就向内倾斜，见图 2、图 3和图 4所示， 齿的顶部为圆角或平角， 并且均匀排列， 整个垫片的截面像 "鱼骨" 的形状。 图 5为圆齿环 的非均匀排列分布， 齿环之间可有空缺的无齿区域， 形成双密封或多密封的垫片结构。
除了采用上述单一的圆齿或平齿结构外， 垫片还可以采用这两种结构的组合， 如图 6和 图 7所示， 将圆齿环和平齿环交错排列或者以任意方式组合排列， 可以提高垫片的弹性。
本发明将齿的顶角设为圆角、 平角或波浪圆弧角后， 与法兰面接触的地方是圆弧或平面 的， 避免了传统的尖角齿造成对法兰面的损伤。 齿形沟槽在环面上的倾斜排列， 使得来自压 力源的压力能够逐级降压， 提高密封的可靠性。 对于齿的顶角以外其它部分的形状不限， 可 以有多种变化。
另外， 垫片的上下端面可结合有非金属垫片， 如石墨。 在使用金属齿形垫片时， 金属环 上下面的石墨与密封元件接触， 能加大密封效果、 降低磨损率， 同时在清理、 更换或者重覆 金属垫片时， 只需将金属齿形垫片上的石墨换掉， 该金属齿形垫片可继续使用， 提高了使用 效率， 降低工业使用成本。

Claims

权利 要 求 书
1. 一种鱼骨斜齿形金属垫片，垫片上下端面的圆周方向上分布有环状齿形沟槽， 其特征在于， 所述齿形沟槽的齿与金属垫片为一个整体， 并且朝着压力源的 方向倾斜排列。
2. 根据权利要求 1所述的一种鱼骨斜齿形金属垫片， 其特征在于， 所述齿的顶 部与法兰的接触面为非尖角。
3. 根据权利要求 2所述的一种鱼骨斜齿形金属垫片， 其特征在于， 所述齿的顶 部为圆角、 平角、 波浪圆弧角或者它们的组合。
4. 根据权利要求 2所述的一种鱼骨斜齿形金属垫片， 其特征在于， 所述环状齿 形沟槽采用单一形状的齿或者多种形状齿的组合排列。
5. 根据权利要求 1、 2、 3或 4所述的一种鱼骨斜齿形金属垫片， 其特征在于， 所述环状齿形沟槽在垫片圆周方向上的排列间距为均匀或者非均匀的。
PCT/CN2013/071491 2013-01-29 2013-02-07 一种鱼骨斜齿形金属垫片 WO2014117415A1 (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR2020137000064U KR20140006241U (ko) 2013-01-29 2013-02-07 피시본 헬리컬 치형 금속 가스킷
US14/000,615 US20150316150A1 (en) 2013-01-29 2013-02-07 Fishbone-like helical toothed metallic gasket
DE212013000004U DE212013000004U1 (de) 2013-01-29 2013-02-07 Fischgrätenähnlich-schrägzahnförmige Metallunterlegscheibe

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310032805.XA CN103062541B (zh) 2013-01-29 2013-01-29 一种鱼骨斜齿形金属垫片
CN201310032805.X 2013-01-29

Publications (1)

Publication Number Publication Date
WO2014117415A1 true WO2014117415A1 (zh) 2014-08-07

Family

ID=48105313

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2013/071491 WO2014117415A1 (zh) 2013-01-29 2013-02-07 一种鱼骨斜齿形金属垫片

Country Status (5)

Country Link
US (1) US20150316150A1 (zh)
KR (1) KR20140006241U (zh)
CN (1) CN103062541B (zh)
TW (1) TWM481306U (zh)
WO (1) WO2014117415A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2624782C2 (ru) * 2015-10-08 2017-07-06 Российская Федерация, от имени которой выступает Министерство промышленности и торговли Российской Федерации (Минпромторг России) Уплотнение газового стыка между втулкой и крышкой цилиндра двигателя внутреннего сгорания

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO336330B1 (no) * 2013-09-26 2015-08-03 Otechos As Metallisk flensforbindelsespakning
CN103644297B (zh) * 2013-12-06 2015-12-02 艾志（南京）环保管接技术股份有限公司 一种具有异形齿的金属骨架齿形复合垫
CN103671918B (zh) * 2013-12-06 2016-05-25 艾志（南京）环保管接技术股份有限公司 一种穿插止压台阶的金属齿形垫片
US20150176744A1 (en) * 2013-12-20 2015-06-25 Onesubsea Ip Uk Limited Gasket
US11280410B2 (en) * 2015-11-13 2022-03-22 Lgc Us Asset Holdings Non-metal gasket
BR102015028821B1 (pt) * 2015-11-17 2021-08-03 Petróleo Brasileiro S.A. - Petrobrás Junta de vedação para sistemas de tubulações
CN105402405B (zh) * 2015-11-26 2017-11-14 成都九十度工业产品设计有限公司 一种金属组合垫片
WO2018018118A1 (pt) 2016-07-26 2018-02-01 Fmc Technologies Do Brasil Ltda Selo de vedação metálica de face bidirecional auto-energizável por pressão
DE202016104243U1 (de) * 2016-08-02 2017-11-03 Reinz-Dichtungs-Gmbh Flachdichtung sowie Verbrennungsmotor mit einer derartigen Flachdichtung
KR20170000076U (ko) 2016-08-18 2017-01-04 우주가스팩공업(주) 멀티 캠프로파일 가스켓
CN109690152B (zh) * 2016-09-09 2021-09-03 李钟彻 垫圈
JP6400647B2 (ja) * 2016-09-29 2018-10-03 株式会社青山製作所 ワッシャ及び車両構造体
CN107830170B (zh) * 2017-12-22 2023-12-29 镇江贝斯特新材料股份有限公司 一种扬声器生产点胶头专用密封垫
EP3708856B1 (en) * 2019-03-13 2021-08-11 Growermetal S.r.l. Safety washer for improved control of bolt tension and high antiloosening effect
CN113405721B (zh) * 2020-02-29 2022-07-01 潍坊嘉腾液压技术有限公司 一种鱼型光纤光栅压力和温度传感器的制作及封装方法
CN113324693B (zh) * 2020-02-29 2022-07-01 潍坊嘉腾液压技术有限公司 一种鱼型光纤光栅大量程压力传感器的制作及封装方法
US11725731B2 (en) * 2021-01-15 2023-08-15 Environmental Gasket Company, Ltd. Toothed metallic gasket interpenetrated with compression-resistant steps
CN113431901B (zh) * 2021-07-12 2023-06-23 常熟理工学院 一种金属波纹自密封复合垫片
KR102352074B1 (ko) * 2021-11-08 2022-01-18 정준호 플랜지 접합용 가스켓

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87207110U (zh) * 1987-05-29 1988-01-20 吴树济 金属—膨胀石墨复合垫片
JPH03209067A (ja) * 1990-01-10 1991-09-12 Eagle Ind Co Ltd 金属製のこ歯形ガスケット及びその製造方法
CN2526606Y (zh) * 2002-03-08 2002-12-18 石油大学(华东) 梯形波齿垫片
CN101625027A (zh) * 2008-07-11 2010-01-13 株式会社山武 金属密封垫圈及调节阀
JP2011202785A (ja) * 2010-03-26 2011-10-13 Nippon Valqua Ind Ltd 渦巻形ガスケット加工装置
CN203067774U (zh) * 2013-01-29 2013-07-17 艾志（南京）环保管接技术股份有限公司 一种鱼骨斜齿形金属垫片

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000193090A (ja) * 1998-12-24 2000-07-14 Daiwa Kasei Ind Co Ltd 防水パッキン
CN201916485U (zh) * 2010-11-05 2011-08-03 刘秀英 带隔条复合垫片
CN201909130U (zh) * 2010-11-05 2011-07-27 刘秀英 外压用复合垫片
CN201875131U (zh) * 2010-11-05 2011-06-22 刘秀英 自紧式金属垫片

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87207110U (zh) * 1987-05-29 1988-01-20 吴树济 金属—膨胀石墨复合垫片
JPH03209067A (ja) * 1990-01-10 1991-09-12 Eagle Ind Co Ltd 金属製のこ歯形ガスケット及びその製造方法
CN2526606Y (zh) * 2002-03-08 2002-12-18 石油大学(华东) 梯形波齿垫片
CN101625027A (zh) * 2008-07-11 2010-01-13 株式会社山武 金属密封垫圈及调节阀
JP2011202785A (ja) * 2010-03-26 2011-10-13 Nippon Valqua Ind Ltd 渦巻形ガスケット加工装置
CN203067774U (zh) * 2013-01-29 2013-07-17 艾志（南京）环保管接技术股份有限公司 一种鱼骨斜齿形金属垫片

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2624782C2 (ru) * 2015-10-08 2017-07-06 Российская Федерация, от имени которой выступает Министерство промышленности и торговли Российской Федерации (Минпромторг России) Уплотнение газового стыка между втулкой и крышкой цилиндра двигателя внутреннего сгорания

Also Published As

Publication number Publication date
KR20140006241U (ko) 2014-12-12
CN103062541A (zh) 2013-04-24
CN103062541B (zh) 2015-08-26
TWM481306U (zh) 2014-07-01
US20150316150A1 (en) 2015-11-05

Similar Documents

Publication Publication Date Title
WO2014117415A1 (zh) 一种鱼骨斜齿形金属垫片
JP5126999B2 (ja) シール材
JP4877673B2 (ja) シート層付き鋸歯形ガスケット
CN203067774U (zh) 一种鱼骨斜齿形金属垫片
KR20130067176A (ko) 고온고압용 절연가스켓
WO2015081616A1 (zh) 一种具有异形齿的金属骨架齿形复合垫
CN202349208U (zh) 一种密封垫片
CN205896165U (zh) 一种碟形柔性石墨金属波齿垫片
CN203906780U (zh) 一种多层齿形组合密封垫片
RU2334144C1 (ru) Узел уплотнения
JP2009505011A5 (zh)
CN207470771U (zh) 一种齿形垫片
CN106122232A (zh) 法兰面锁紧螺母
CN107676478B (zh) 液压吊运机械交错式密封件
JP5973781B2 (ja) 耐腐食性複合シール構造
CN205207667U (zh) 一种金属齿形密封垫
RU2447341C2 (ru) Уплотнительный узел неподвижного соединения
JP5951307B2 (ja) メタルガスケット
JP3178893U (ja) ボールバルブワッシャ構造
CN205503981U (zh) 一种组合式密封垫片
CN206398071U (zh) 一种增强型石墨垫片
JP6309284B2 (ja) 金属シール
RU106700U1 (ru) Уплотнительный узел неподвижного соединения
CN207437763U (zh) 外环型金属缠绕垫片
CN207584223U (zh) 一种新型活套法兰

Legal Events

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

Ref document number: 14000615

Country of ref document: US

WWE Wipo information: entry into national phase

Ref document number: 212013000004

Country of ref document: DE

Ref document number: 2120130000049

Country of ref document: DE

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

Ref document number: 13873221

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 13873221

Country of ref document: EP

Kind code of ref document: A1