WO2020090347A1 - 流体供給システム - Google Patents
流体供給システム Download PDFInfo
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- WO2020090347A1 WO2020090347A1 PCT/JP2019/039159 JP2019039159W WO2020090347A1 WO 2020090347 A1 WO2020090347 A1 WO 2020090347A1 JP 2019039159 W JP2019039159 W JP 2019039159W WO 2020090347 A1 WO2020090347 A1 WO 2020090347A1
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- fluid
- manifolds
- manifold
- supply system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
- F15B13/08—Assemblies of units, each for the control of a single servomotor only
- F15B13/0803—Modular units
- F15B13/0807—Manifolds
- F15B13/0817—Multiblock manifolds
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/003—Housing formed from a plurality of the same valve elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
Definitions
- the present invention relates to a fluid supply system, and more particularly to a fluid supply system in which a plurality of multiple manifolds to which a plurality of fluid control devices are connected are arranged in series in the fluid flow direction in the collective flow passage.
- FIG. 4 of Patent Document 1 discloses a fluid supply system in which two manifolds to which fluid control devices are connected are arranged in parallel.
- the two manifolds arranged in parallel are connected to each other by welding short pipes projecting from their ends, and the collecting channels of the two are connected to each other.
- Patent Document 1 since the short pipe formed in the manifold is welded, there is a possibility that internal burning due to welding may occur in the short pipe and in the manifold collecting passage. The inner surface burning needs to be removed because particles may be mixed in the fluid flowing through the channel. However, it is difficult to remove the internal burn because the inner peripheral surfaces of the short pipe and the manifold cannot be accessed after welding.
- the gas supply system for semiconductor manufacturing equipment is highly integrated by arranging multiple manifolds that can switch and supply a large number of gases of different types in series along the flow direction of the fluid in the collection channel. Tend to be.
- the manifolds cannot be connected in series, and the space of the protruding short pipe is wasted, which may hinder integration.
- the present invention has been made in view of the above problems, and an object thereof is to reduce the production cost and to arrange a plurality of manifolds in series to achieve high integration and to reduce particle generation. It is to provide a highly reliable fluid supply system in which generation is suppressed.
- the fluid supply system is a fluid supply system in which a plurality of multiple manifolds to which a plurality of fluid lines are connected are arranged in series along the arrangement direction of the fluid lines, and adjacent multiple manifolds face each other.
- a connection manifold arranged in parallel at an end, a first fluid control device connecting one end of an adjacent multiple manifold to the connection manifold, and another end of an adjacent multiple manifold and a connection manifold
- a second fluid control device that connects the two fluid control devices to each other, and the connection manifold has a communication passage that communicates the respective collective flow channels of the adjacent multiple manifolds via the first and second fluid control devices.
- the first and second fluid control devices include first and second flow paths that communicate with the respective collection flow paths of the adjacent manifolds via the communication paths. , And third flow passages that connect the fluid lines to the respective collection flow passages of the adjacent multiple manifolds.
- the first and second fluid control devices are three-way valves capable of opening the third flow passage in response to switching while always opening the first and second flow passages. Is.
- the first and second fluid control devices are arranged so as to be spaced apart from the adjacent multiple manifolds in the extending direction of the fluid lines, and each of the multiple manifolds has the first and second fluid control devices. And a block joint connected together with the connection manifold, and the connection manifold is disposed in the gap.
- a highly reliable fluid supply system in which multiple manifolds are arranged in series and highly integrated while suppressing production of particles while reducing production costs is provided. can do.
- FIG. 1 shows a perspective view of a fluid supply system 1.
- the fluid supply system 1 is configured by arranging a plurality of fluid lines 4 in which fluid control devices 2 are connected in series, and is used, for example, in a gas supply system of a semiconductor manufacturing apparatus.
- the fluid lines 4 are extended in the extending direction X, arranged in the arrangement direction Y substantially orthogonal to the extending direction X, and substantially orthogonal to both the extending direction X and the arrangement direction Y. It is specified that what is to be done is the intersecting direction Z, and the following drawings will be described.
- the fluid control device 2 includes a flow rate control device 6 and an opening / closing valve 8 in the order of the flow direction of the fluid in the fluid line 4 indicated by the arrow.
- the on-off valve 8 includes an actuator 10 and a body 12, and both ends of the body 12 in the extending direction X are fastened and fixed to the multiple manifold 14 and the block joint 16 by bolts.
- a gap 18 is formed between the multiple manifold 14 and the block joint 16.
- the fluid line 4 may be provided with other devices related to fluid control such as a regulator (not shown).
- the multiple manifold 14 is, for example, a five manifold in which five fluid lines 4 are connected. Further, the fluid supply system 1 of FIG. 1 is configured by arranging two multiple manifolds 14 in series along the arrangement direction Y of the fluid lines 4. A flow path (not shown) is formed in the block joint 16, and the flow path communicates with the flow rate control device 6 and the opening / closing valve 8 and forms a part of the fluid line 4.
- the multiple manifold 14 is not limited to five fluid lines 4 as long as a plurality of fluid lines 4 are connected, and may be multiple manifolds such as eight or sixteen. Further, the multiple manifolds 14 are not limited to two in the arrangement direction Y and may be three or more.
- FIG. 2 shows (a) a top view and (b) a sectional view of the multiple manifold 14. Note that the vertical direction is based on the attitude of the fluid supply system 1 shown in FIG. 1, and the same applies to each of the subsequent figures.
- the collecting channel 22 extends in the array direction Y in the multiple manifold 14.
- the branch passage 22a is opened from the collecting passage 22 to the upper surface 14a at the installation location of the on-off valve 8.
- a processed hole 24 is formed after inserting a drill or the like when forming the collecting channel 22.
- the processed hole 24 is sealed by screwing the lid member 26 or the like.
- FIG. 3 shows (a) a structural diagram of the on-off valve 8 which is a three-way valve, and (b) a bottom view.
- the on-off valve 8 at each end 14c opens the first and second flow paths 28 and 30 at all times as shown by the solid line in FIG. 3 (a), while opening the third flow path 32 in response to switching by the actuator 10. It is configured to be openable.
- the lower surface 12a of the body 12 that contacts the upper surface 14a of the multiple manifold 14 has first to third flow paths 28, 30, 32 and six bolt insertion holes. 34 and 34 are open. Bolts are respectively inserted into the two bolt insertion holes 34 formed on the right end side of the body 12 in FIG. 3B and fastened to the bolt fastening holes 20 of the multiple manifold 14 shown in FIG.
- the on-off valve 8 is connected and fixed to the multiple manifold 14, and the first flow path 28 of the on-off valve 8 is connected to the branch path 22 a of the multiple manifold 14.
- the on-off valves 8 other than the two on-off valves 8 provided at the end 14c of each multiple manifold 14 may be the three-way valve as described above according to the specifications of the fluid supply system 1. , It may be a two-way valve.
- FIG. 4 is a top view of the vicinity of the end portion 14c of each multiple manifold 14.
- the open / close valve 8 of FIG. 4 shows only the lower surface 12a of the body 12 by a broken line.
- the connection manifolds 36 are arranged in parallel in the extending direction X at the end portions 14c of the adjacent multiple manifolds 14 that face each other. Since the connection manifold 36 is arranged in the gap 18 shown in FIG. 1 between the multiple manifold 14 and the block joint 16, it is not necessary to provide a new space for installing the connection manifold 36.
- FIG. 5 shows a cross-sectional view of the connection manifold 36.
- the connection manifold 36 is, for example, a two-way manifold, and has a communication passage 38 extending in the arrangement direction Y, two branch passages 38 a branching from the communication passage 38 and opening to an upper surface 36 a of the connection manifold 36. It is provided with four bolt fastening holes 40, a machining hole 42 formed in machining the communication passage 38, and a lid member 44 for sealing the machining hole 42.
- the on-off valve (first fluid control device) 8 on the left side shown in FIG. 4 bolts are inserted into the two bolt insertion holes 34 formed in the center of the body 12, and the bolt fastening holes 40 of the connecting manifold 36 are inserted.
- the left opening / closing valve 8 connects the end portion 14 c of the left-side multiple manifold 14 of the adjacent multiple manifolds 14 and the connection manifold 36.
- the second passage 30 of the left opening / closing valve 8 communicates with the left branch passage 38 a of the connection manifold 36.
- the right-side on-off valve (second fluid control device) 8 shown in FIG. 4 bolts are inserted into the two bolt insertion holes 34 formed in the center of the body 12 to fasten the connection manifold 36 with bolts. Fasten to the hole 40. That is, the on-off valve 8 on the right side connects the end portion 14 c of the multiple manifold 14 on the right side of the adjacent multiple manifolds 14 and the connection manifold 36. Further, the second flow passage 30 of the right opening / closing valve 8 is connected to the right branch passage 38 a of the connection manifold 36.
- each on-off valve 8 has a structure in which the first and second flow paths 28 and 30 are always in communication.
- the collecting passage 22 of the left multiple manifold 14 communicates with the first passage 28 of the left opening / closing valve 8 from the branch passage 22a.
- first flow path 28 is communicated with the second flow path 30 in the body 12 of the left opening / closing valve 8, and the second flow path 30 is further communicated with the communication path 38 via the left branch path 38 a of the connection manifold 36.
- the communication passage 38 communicates with the branch passage 38a on the right side thereof to the branch passage 38a of the multiple manifold 14 on the right side.
- the branch passage 38a of the right multiple manifold 14 communicates with the second flow passage 30 of the right on-off valve 8.
- the second flow passage 30 communicates with the first flow passage 28 in the body 12 of the right-side on-off valve 8, and the first flow passage 28 further collects the combined flow through the branch passage 22a of the right multiple manifold 14. It is connected to the road 22.
- the collecting passages 22 of the adjacent multiple manifolds 14 are always communicated with each other through the connecting manifold 36 and the two opening / closing valves 8, and the two multiple manifolds 14 are connected. It can be used as if it were one continuous multiple manifold.
- connection manifold 36 is installed in the existing gap 18 between the multiple manifold 14 and the block joint 16 of the fluid supply system 1, and the existing two on-off valves 8 at the end 14c are changed to three-way valves.
- the collective flow passages 22 of the adjacent multiple manifolds 14 can be connected to the fluid line 4.
- the fluid line 4 indicated by the one-dot chain line arrow is connected to the communication passage 38 of the connection manifold 36 at the junction P shown in FIG.
- the fluid line 4 can be connected to each of the end portions 14c of the two multiple manifolds 14 in the same manner as the other multiple manifolds 14, and each of the collecting channels shown by the two-dot chain line arrow in FIG.
- the fluid from the fluid line 4 can be supplied to 22.
- connection manifolds 36 are arranged in parallel at the end portions 14c of the adjacent multiple manifolds 14 that face each other, and the adjacent multiple manifolds 14 face each other.
- the respective end portions 14c and the connection manifold 36 are connected by the respective open / close valves 8, and the collective passages 22 of the adjacent multiple manifolds 14 are connected via the open / close valves 8 by the communication passages 38 of the connection manifold 36. ..
- connection manifolds 36 with the adjacent multiple manifolds 14
- the functions of the multiple manifolds 14 such as 16 stations or 24 stations are facilitated. Therefore, the production cost of the fluid supply system 1 can be reduced.
- the block joint 16 is arranged so as to be spaced apart from the adjacent multiple manifold 14 in the extending direction X with a gap 18 therebetween, and the connection manifold 36 is arranged in the gap 18. Accordingly, it is not necessary to provide a new space for installing the connection manifold 36, so that the integration of the fluid supply system 1 can be further promoted.
- the fluid supply system 1 is applicable not only to the gas supply system of the semiconductor manufacturing apparatus but also to a liquid fluid supply system, and can be used for various processes other than the semiconductor manufacturing process.
- fluid supply system 4 fluid line 8 on-off valve (first fluid control device, second fluid control device, three-way valve) 14 Multiple Manifold 14c End 16 Block Joint 18 Gap 22 Collective Flow Path 28 First Flow Path 30 Second Flow Path 32 Third Flow Path 36 Connection Manifold 38 Communication Path X Extension Direction Y Arrangement Direction
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Valve Housings (AREA)
Abstract
Description
本発明は、このような課題に鑑みてなされたもので、その目的とするところは、生産コストを低減しながら、多連マニホールドを複数直列に配置して高度に集積化を図るとともに、パーティクルの発生を抑制した信頼性の高い流体供給システムを提供することにある。
本態様に係る流体供給システムは、複数の流体ラインが接続された多連マニホールドを流体ラインの配列方向に沿って直列に複数配置した流体供給システムであって、隣り合う多連マニホールドの互いに対向する端部に並列に配置された連結マニホールドと、隣り合う多連マニホールドの一方の端部と連結マニホールドとを接続する第1流体制御機器と、隣り合う多連マニホールドの他方の端部と連結マニホールドとを接続する第2流体制御機器とを備え、連結マニホールドは、隣り合う多連マニホールドのそれぞれの集合流路を第1及び第2流体制御機器を介して連通する連通路を有する。
また、本態様に係る前述した流体供給システムにおいて、第1及び第2流体制御機器は、第1及び第2流路を常時開放しつつ、切り換えに応じて第3流路を開放可能な三方弁である。
図1は、流体供給システム1の斜視図を示す。流体供給システム1は、流体制御機器2が直列に接続された流体ライン4を複数配列して構成され、例えば半導体製造装置のガス供給システムに用いられる。なお、流体ライン4は延設方向Xに延設されるとともに、延設方向Xと実質的に直交する配列方向Yに配列され、延設方向Xと配列方向Yとの双方と実質的に直交するのは交差方向Zであると規定して以降の各図面について説明する。
図3は、三方弁である開閉弁8の(a)構造図と、(b)下面図とを示す。各端部14cにおける開閉弁8は、図3(a)に実線で示すように第1及び第2流路28、30を常時開放しつつ、アクチュエータ10による切り換えに応じて第3流路32を開放可能に構成されている。
本実施形態の流体供給システム1においては、隣り合う多連マニホールド14の互いに対向する端部14cに延設方向Xに並列に連結マニホールド36が配置されている。連結マニホールド36は、多連マニホールド14とブロック継手16との間の図1に示す隙間18に配置されるため、連結マニホールド36を設置するために新たなスペースを設ける必要はない。
また、隣り合う多連マニホールド14で連結マニホールド36を連結することにより、製作が困難である、連数の多い多連マニホールド14、例えば、16連、又は24連といった多連マニホールド14の機能を容易に実現することができるため、流体供給システム1の生産コストを低減することができる。
例えば、流体供給システム1は、半導体製造装置のガス供給システムに限らず、液体の流体供給システムにも適用可能であり、また、半導体製造プロセス以外の種々のプロセスにも用いることができる。
4 流体ライン
8 開閉弁(第1流体制御機器、第2流体制御機器、三方弁)
14 多連マニホールド
14c 端部
16 ブロック継手
18 隙間
22 集合流路
28 第1流路
30 第2流路
32 第3流路
36 連結マニホールド
38 連通路
X 延設方向
Y 配列方向
Claims (4)
- 複数の流体ラインが接続された多連マニホールドを前記流体ラインの配列方向に沿って直列に複数配置した流体供給システムであって、
隣り合う前記多連マニホールドの互いに対向する端部に並列に配置された連結マニホールドと、
隣り合う前記多連マニホールドの一方の前記端部と前記連結マニホールドとを接続する第1流体制御機器と、
隣り合う前記多連マニホールドの他方の前記端部と前記連結マニホールドとを接続する第2流体制御機器と
を備え、
前記連結マニホールドは、隣り合う前記多連マニホールドのそれぞれの集合流路を前記第1及び第2流体制御機器を介して連通する連通路を有する、流体供給システム。 - 前記第1及び第2流体制御機器は、
隣り合う前記多連マニホールドのそれぞれの前記集合流路に前記連通路を介して連通させる第1及び第2流路と、
隣り合う前記多連マニホールドのそれぞれの前記集合流路に前記流体ラインを連通させる第3流路と
をそれぞれ有する、請求項1に記載の流体供給システム。 - 前記第1及び第2流体制御機器は、前記第1及び第2流路を常時開放しつつ、切り換えに応じて前記第3流路を開放可能な三方弁である、請求項2に記載の流体供給システム。
- 隣り合う前記多連マニホールドと前記流体ラインの延設方向に隙間を存して離間して配置され、前記第1及び第2流体制御機器が前記各多連マニホールド及び前記連結マニホールドとともに接続されるブロック継手をさらに備え、
前記連結マニホールドは、前記隙間に配置される、請求項1から3の何れか一項に記載の流体供給システム。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020217011761A KR102546137B1 (ko) | 2018-10-31 | 2019-10-03 | 유체 공급 시스템 |
| JP2020553708A JP7303560B2 (ja) | 2018-10-31 | 2019-10-03 | 流体供給システム |
| CN201980070454.7A CN112912652A (zh) | 2018-10-31 | 2019-10-03 | 流体供给系统 |
| US17/309,070 US11226049B2 (en) | 2018-10-31 | 2019-10-03 | Fluid supply system |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018-205600 | 2018-10-31 | ||
| JP2018205600 | 2018-10-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2020090347A1 true WO2020090347A1 (ja) | 2020-05-07 |
Family
ID=70464428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2019/039159 Ceased WO2020090347A1 (ja) | 2018-10-31 | 2019-10-03 | 流体供給システム |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US11226049B2 (ja) |
| JP (1) | JP7303560B2 (ja) |
| KR (1) | KR102546137B1 (ja) |
| CN (1) | CN112912652A (ja) |
| TW (1) | TWI710728B (ja) |
| WO (1) | WO2020090347A1 (ja) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007017937A1 (ja) * | 2005-08-10 | 2007-02-15 | Fujikin Incorporated | 流体制御装置 |
| WO2007032147A1 (ja) * | 2005-09-12 | 2007-03-22 | Fujikin Incorporated | 流体制御装置 |
| JP2016205595A (ja) * | 2015-04-28 | 2016-12-08 | 株式会社フジキン | 流体制御装置用継手、流体制御装置用開閉弁および流体制御装置 |
| JP2016223533A (ja) * | 2015-05-29 | 2016-12-28 | 株式会社フジキン | バルブおよび流体制御装置 |
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| JP3780096B2 (ja) * | 1998-04-27 | 2006-05-31 | シーケーディ株式会社 | プロセスガス供給ユニット |
| JP4288629B2 (ja) * | 1998-06-05 | 2009-07-01 | 日立金属株式会社 | 集積形流体制御装置 |
| JP3825288B2 (ja) * | 2001-08-13 | 2006-09-27 | Smc株式会社 | 電磁弁用マニホールド |
| CA2507589A1 (en) * | 2002-11-26 | 2004-06-10 | Swagelok Company | Modular surface mount fluid system |
| US7458397B2 (en) * | 2004-07-09 | 2008-12-02 | Michael Doyle | Modular fluid distribution system |
| TW200708681A (en) * | 2004-08-04 | 2007-03-01 | Fujikin Kk | Fluid control device |
| CN101680561B (zh) * | 2007-05-31 | 2011-12-21 | 东京毅力科创株式会社 | 流体控制装置 |
| US20080302426A1 (en) * | 2007-06-06 | 2008-12-11 | Greg Patrick Mulligan | System and method of securing removable components for distribution of fluids |
| US7784497B2 (en) | 2007-07-12 | 2010-08-31 | Eriksson Mark L | MSM component and associated gas panel assembly |
| JP4700095B2 (ja) * | 2008-11-03 | 2011-06-15 | シーケーディ株式会社 | ガス供給装置、ブロック状フランジ |
| JP6012247B2 (ja) * | 2012-04-27 | 2016-10-25 | 株式会社フジキン | 流体制御装置 |
| JP6630496B2 (ja) | 2015-05-29 | 2020-01-15 | 株式会社フジキン | マニホールドブロックおよび流体制御装置 |
| US10768641B2 (en) * | 2015-08-26 | 2020-09-08 | Fujikin Incorporated | Flow dividing system |
-
2019
- 2019-10-03 KR KR1020217011761A patent/KR102546137B1/ko active Active
- 2019-10-03 WO PCT/JP2019/039159 patent/WO2020090347A1/ja not_active Ceased
- 2019-10-03 JP JP2020553708A patent/JP7303560B2/ja active Active
- 2019-10-03 CN CN201980070454.7A patent/CN112912652A/zh active Pending
- 2019-10-03 US US17/309,070 patent/US11226049B2/en active Active
- 2019-10-16 TW TW108137313A patent/TWI710728B/zh active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007017937A1 (ja) * | 2005-08-10 | 2007-02-15 | Fujikin Incorporated | 流体制御装置 |
| WO2007032147A1 (ja) * | 2005-09-12 | 2007-03-22 | Fujikin Incorporated | 流体制御装置 |
| JP2016205595A (ja) * | 2015-04-28 | 2016-12-08 | 株式会社フジキン | 流体制御装置用継手、流体制御装置用開閉弁および流体制御装置 |
| JP2016223533A (ja) * | 2015-05-29 | 2016-12-28 | 株式会社フジキン | バルブおよび流体制御装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR102546137B1 (ko) | 2023-06-22 |
| CN112912652A (zh) | 2021-06-04 |
| US20210317924A1 (en) | 2021-10-14 |
| JP7303560B2 (ja) | 2023-07-05 |
| JPWO2020090347A1 (ja) | 2021-09-24 |
| US11226049B2 (en) | 2022-01-18 |
| TWI710728B (zh) | 2020-11-21 |
| KR20210057182A (ko) | 2021-05-20 |
| TW202024518A (zh) | 2020-07-01 |
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