JP2011089568A - Solenoid pilot on-off valve - Google Patents

Solenoid pilot on-off valve Download PDF

Info

Publication number
JP2011089568A
JP2011089568A JP2009242542A JP2009242542A JP2011089568A JP 2011089568 A JP2011089568 A JP 2011089568A JP 2009242542 A JP2009242542 A JP 2009242542A JP 2009242542 A JP2009242542 A JP 2009242542A JP 2011089568 A JP2011089568 A JP 2011089568A
Authority
JP
Japan
Prior art keywords
iron core
valve body
pilot
hole
main 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.)
Pending
Application number
JP2009242542A
Other languages
Japanese (ja)
Inventor
Nobuhisa Watanabe
宣尚 渡邊
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.)
JTEKT Corp
Toyooki Kogyo Co Ltd
Original Assignee
JTEKT Corp
Toyooki Kogyo 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 JTEKT Corp, Toyooki Kogyo Co Ltd filed Critical JTEKT Corp
Priority to JP2009242542A priority Critical patent/JP2011089568A/en
Priority to PCT/JP2010/068618 priority patent/WO2011049177A1/en
Publication of JP2011089568A publication Critical patent/JP2011089568A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • 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
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
    • F16K31/40—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor
    • F16K31/406—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor acting on a piston
    • F16K31/408—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor acting on a piston the discharge being effected through the piston and being blockable by an electrically-actuated member making contact with the piston
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2250/00—Fuel cells for particular applications; Specific features of fuel cell system
    • H01M2250/20—Fuel cells in motive systems, e.g. vehicle, ship, plane
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Sustainable Development (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Magnetically Actuated Valves (AREA)
  • Fuel Cell (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a solenoid pilot on-off valve reducing the size by incorporating a main valve element in a movable iron core to decrease the axial length. <P>SOLUTION: The solenoid pilot on-off valve includes the main valve element 42 opening and closing a flow passage, a pilot flow passage axially penetrating the main valve element 42, a pilot valve element 54 opening and closing the pilot flow passage, the movable iron core 36 formed with a receiving hole 38 containing the main valve element 42, and a fixed iron core 56 axially attracting the movable iron core 36 with energization to a coil 70. The main valve element 42 is contained in the receiving hole 38 movably in the axial direction, and the movable iron core 36 moves the pilot valve element 54 to bring the pilot flow passage in an opened state and then moves the main valve element 42 contained in the receiving hole 38 to open the flow passage. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、コイルへの通電により可動鉄心を固定鉄心に吸引し、可動鉄心の移動によりパイロット弁体を移動した後、主弁体を移動して流体を制御する電磁パイロット開閉弁、特に、燃料電池車に搭載され、高圧水素ガスを充填したガスタンクからの高圧水素ガスの供給を制御する電磁パイロット開閉弁に関する。   The present invention relates to an electromagnetic pilot on-off valve for controlling a fluid by moving a main valve body after attracting a movable iron core to a fixed core by energizing a coil and moving a pilot valve body by movement of the movable iron core. The present invention relates to an electromagnetic pilot on-off valve that is mounted on a battery car and controls supply of high-pressure hydrogen gas from a gas tank filled with high-pressure hydrogen gas.

従来より、例えば、燃料電池車に搭載され、高圧水素ガスを充填したガスタンクからの高圧水素ガスの供給を制御する電磁パイロット開閉弁として、特許文献１にあるような電磁パイロット開閉弁が知られている。この電磁パイロット開閉弁では、可動鉄心にパイロット弁体を一体形成し、パイロット弁座を有する主弁体を軸方向へ摺動可能に設けている。そして、コイルへの通電により可動鉄心が固定鉄心に吸引されてパイロット弁体がパイロット弁座より離間し、流入口と流出口との差圧が小さくなって、主弁体がばねの付勢力により軸方向へ摺動して主弁座より離間して開弁し、高圧水素ガスを流入口から流出口へ流出するようにしている。   Conventionally, for example, an electromagnetic pilot on / off valve as disclosed in Patent Document 1 is known as an electromagnetic pilot on / off valve that is mounted on a fuel cell vehicle and controls the supply of high-pressure hydrogen gas from a gas tank filled with high-pressure hydrogen gas. Yes. In this electromagnetic pilot on-off valve, a pilot valve body is formed integrally with a movable iron core, and a main valve body having a pilot valve seat is provided so as to be slidable in the axial direction. When the coil is energized, the movable iron core is attracted to the fixed iron core, the pilot valve body is separated from the pilot valve seat, the differential pressure between the inlet and outlet is reduced, and the main valve body is moved by the biasing force of the spring. It slides in the axial direction and opens away from the main valve seat so that the high-pressure hydrogen gas flows out from the inlet to the outlet.

特開２００３−２４０１４８号JP 2003-240148 A

しかしながら、こうした従来のものでは、可動鉄心の軸方向の一端部にパイロット弁体を端部から軸方向に突き出して一体形成し、パイロット弁体が着座するパイロット弁座をパイロット弁体と対向する主弁体の軸方向の一端部に設けている。そして、ガイドに主弁体を摺動可能に支持すると共に、可動鉄心と一体のパイロット弁体を主弁体に軸方向へ摺動可能に挿入しているため、軸方向の長さが増大して電磁弁が大型化してしまうという問題があった。   However, in such a conventional one, the pilot valve body is integrally formed by protruding in the axial direction from one end portion of the movable core in the axial direction, and the pilot valve seat on which the pilot valve body is seated is opposed to the pilot valve body. It is provided at one end of the valve body in the axial direction. Since the main valve body is slidably supported by the guide and the pilot valve body integral with the movable iron core is inserted into the main valve body so as to be slidable in the axial direction, the axial length is increased. As a result, there is a problem that the solenoid valve becomes large.

本発明の課題は、可動鉄心に主弁体を内蔵して軸方向の長さを低減し、小型化を図り得る電磁パイロット開閉弁を提供することにある。   SUMMARY OF THE INVENTION An object of the present invention is to provide an electromagnetic pilot on-off valve that can reduce the length in the axial direction by incorporating a main valve body in a movable iron core and can be downsized.

かかる課題を達成すべく、本発明は課題を解決するため次の手段を取った。即ち、流路を開閉する主弁体と、前記主弁体を軸方向に貫通するパイロット流路と、前記パイロット流路を開閉するパイロット弁体と、前記主弁体を収納する収納孔が形成された可動鉄心と、前記可動鉄心をコイルへの通電により軸方向に吸引する固定鉄心と、を備え、前記主弁体は、軸方向に移動可能に前記収納孔に収納され、前記可動鉄心は、パイロット弁体を移動させてパイロット流路を開状態とした後、前記収納孔に収納した前記主弁体を移動させて前記流路を開くことを特徴とする電磁パイロット開閉弁がそれである。   In order to achieve this problem, the present invention has taken the following measures in order to solve the problem. That is, a main valve body that opens and closes the flow path, a pilot flow path that penetrates the main valve body in the axial direction, a pilot valve body that opens and closes the pilot flow path, and a storage hole that stores the main valve body are formed. A movable iron core and a fixed iron core that sucks the movable iron core in the axial direction by energizing the coil, and the main valve body is housed in the housing hole so as to be movable in the axial direction. Then, the pilot valve element is moved to open the pilot flow path, and then the main valve element accommodated in the accommodation hole is moved to open the flow path.

その際、前記可動鉄心は、円筒状であり、前記収納孔は、前記可動鉄心と同軸の円柱状の空間であってもよい。また、前記パイロット弁体は、球状に形成されて、前記収納孔に圧入固定され、前記主弁体は、前記パイロット弁体が圧入固定された収納孔に収納される構成でもよい。更に、前記主弁体は、前記収納孔に摺接する本体部と、前記本体部より小径に形成され前記収納孔から突出した状態で配置される小径部と、を有し、前記小径部が突出する前記収納孔の開口近傍には前記本体部の外径よりも小さい縮径部が形成され、前記可動鉄心に対する前記主弁体の軸方向への相対移動は、前記縮径部と前記パイロット弁体との間で規制される構成でもよい。   At this time, the movable iron core may be cylindrical, and the storage hole may be a columnar space coaxial with the movable iron core. The pilot valve body may be formed in a spherical shape and press-fitted and fixed in the storage hole, and the main valve body may be stored in a storage hole in which the pilot valve body is press-fitted and fixed. Further, the main valve body has a main body portion that is in sliding contact with the storage hole, and a small diameter portion that is formed in a state of being smaller in diameter than the main body portion and protrudes from the storage hole, and the small diameter portion projects. A diameter-reduced portion smaller than the outer diameter of the main body portion is formed in the vicinity of the opening of the storage hole, and the relative movement in the axial direction of the main valve body with respect to the movable iron core is caused by the reduced-diameter portion and the pilot valve. The structure regulated between bodies may be sufficient.

本発明の電磁パイロット開閉弁は、可動鉄心に形成した収納孔に主弁体を移動可能に収納したので、軸方向の長さを低減でき、小型化を図ることができるという効果を奏する。
また、可動鉄心を円筒状に、収納孔を可動鉄心と同軸の円柱状の空間とすることにより、可動鉄心の収納孔周辺部分に磁気回路として機能する領域を確保できる。更に、パイロット弁体を球状に形成して収納孔に圧入固定し、主弁体をパイロット弁体が圧入固定された収納孔に収納することにより、組立が容易になる。また、主弁体が収納孔に摺接する本体部と、本体部より小径に形成され収納孔から突出した状態で配置される小径部とを有し、小径部が突出する収納孔の開口近傍に本体部の外径よりも小さい縮径部を形成し、可動鉄心に対する主弁体の軸方向への相対移動を縮径部とパイロット弁体との間で規制することにより、可動鉄心の移動で、主弁体を確実に移動できる。 In the electromagnetic pilot on-off valve of the present invention, since the main valve body is movably accommodated in the accommodation hole formed in the movable iron core, the axial length can be reduced and the size can be reduced.
In addition, by making the movable iron core cylindrical and the accommodation hole a cylindrical space coaxial with the movable iron core, a region functioning as a magnetic circuit can be secured around the accommodation hole of the movable iron core. Further, the pilot valve body is formed in a spherical shape and is press-fitted and fixed in the storage hole, and the main valve body is stored in the storage hole in which the pilot valve body is press-fitted and fixed, thereby facilitating assembly. In addition, the main valve body has a main body portion that is in sliding contact with the storage hole, and a small diameter portion that is formed with a smaller diameter than the main body portion and protrudes from the storage hole, and in the vicinity of the opening of the storage hole from which the small diameter portion protrudes. By forming a reduced diameter part that is smaller than the outer diameter of the main body part and restricting the relative movement in the axial direction of the main valve element relative to the movable core between the reduced diameter part and the pilot valve element, The main valve body can be moved reliably.

本発明の一実施形態としての電磁パイロット開閉弁の断面図である。It is sectional drawing of the electromagnetic pilot on-off valve as one Embodiment of this invention. 本実施形態の電磁パイロット開閉弁の閉弁状態の要部拡大断面図である。It is a principal part expanded sectional view of the valve closing state of the electromagnetic pilot on-off valve of this embodiment. 本実施形態の電磁パイロット開閉弁の開弁状態の要部拡大断面図である。It is a principal part expanded sectional view of the valve opening state of the electromagnetic pilot on-off valve of this embodiment.

以下本発明を実施するための形態を図面に基づいて詳細に説明する。
図１，図２に示すように、１はアルミニウム製の弁ケースで、弁ケース１には大流出孔２が穿設されて弁ケース１の一端側に開口されている。弁ケース１には大流出孔２に連接して大流出孔２よりも大径で大流出孔２と同軸上に挿入孔４が形成されると共に、挿入孔４に連接して大径孔６が形成されている。大径孔６は弁ケース１の他方の端側に開口されている。挿入孔４の大流出孔２側の段部には径方向から穿設された大流入孔８が設けられている。 DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings.
As shown in FIGS. 1 and 2, reference numeral 1 denotes an aluminum valve case. A large outflow hole 2 is formed in the valve case 1 and is opened to one end side of the valve case 1. The valve case 1 is connected to the large outflow hole 2 and has an insertion hole 4 having a diameter larger than that of the large outflow hole 2 and coaxially with the large outflow hole 2. Is formed. The large diameter hole 6 is opened on the other end side of the valve case 1. A large inflow hole 8 drilled from the radial direction is provided at a step portion on the large outflow hole 2 side of the insertion hole 4.

大流出孔２と挿入孔４とには、本体部材１０が挿入され、本体部材１０は大流出孔２に挿入される小径部１０ａと、挿入孔４に挿入される大径部１０ｂとを備えている。小径部１０ａは、バックアップリング１２によりバックアップされたＯリング１４により漏れ止めされて大流出孔２に挿入されている。本体部材１０は、水素脆化に対して耐久性のある非磁性材、例えば、ＳＵＳ３１６Ｌ、ＳＵＨ６６０（ＪＩＳ）等により形成されている。   A main body member 10 is inserted into the large outflow hole 2 and the insertion hole 4, and the main body member 10 includes a small diameter portion 10 a inserted into the large outflow hole 2 and a large diameter portion 10 b inserted into the insertion hole 4. ing. The small-diameter portion 10 a is inserted into the large outflow hole 2 by being leak-tightened by an O-ring 14 backed up by the backup ring 12. The main body member 10 is formed of a nonmagnetic material that is durable against hydrogen embrittlement, for example, SUS316L, SUH660 (JIS), or the like.

小径部１０ａは挿入孔４内に所定長さ飛び出た状態で挿入されており、小径部１０ａ、大径部１０ｂ、挿入孔４により隙間１６が形成されている。大径部１０ｂは、バックアップリング１８によりバックアップされたＯリング２０により漏れ止めされて挿入孔４に挿入されている。   The small diameter portion 10 a is inserted into the insertion hole 4 so as to protrude by a predetermined length, and a gap 16 is formed by the small diameter portion 10 a, the large diameter portion 10 b, and the insertion hole 4. The large-diameter portion 10 b is inserted into the insertion hole 4 while being leak-tight by the O-ring 20 backed up by the backup ring 18.

図２に示すように、本体部材１０には、大流出孔２に開口した流出孔２２が小径部１０ａに形成されており、流出孔２２に連接して装着孔２４が形成されている。更に、装着孔２４に連接した摺動孔２６が大径部１０ｂに形成され、摺動孔２６は大径部１０ｂの端に開口されている。また、摺動孔２６の底部から小径部１０ａと大径部１０ｂとの段部１０ｃに向けて流入孔２８が形成され、流入孔２８は隙間１６に開口されている。   As shown in FIG. 2, in the main body member 10, an outflow hole 22 that opens to the large outflow hole 2 is formed in the small diameter portion 10 a, and a mounting hole 24 is formed so as to be connected to the outflow hole 22. Further, a sliding hole 26 connected to the mounting hole 24 is formed in the large diameter portion 10b, and the sliding hole 26 is opened at the end of the large diameter portion 10b. An inflow hole 28 is formed from the bottom of the sliding hole 26 toward the stepped portion 10 c of the small diameter portion 10 a and the large diameter portion 10 b, and the inflow hole 28 is opened in the gap 16.

装着孔２４には、中央に連通孔３０が貫通形成されて摺動孔２６側に主弁座３２が形成された主弁座部材３４が装着されており、本実施形態では、主弁座部材３４は弾性変形可能なポリイミド樹脂、ポリエーテルエーテルケトン樹脂等により形成されている。   The mounting hole 24 is provided with a main valve seat member 34 in which a communication hole 30 is formed in the center and a main valve seat 32 is formed on the sliding hole 26 side. In this embodiment, the main valve seat member is mounted. 34 is formed of an elastically deformable polyimide resin, polyether ether ketone resin, or the like.

摺動孔２６には可動鉄心３６が摺動可能に挿入されており、可動鉄心３６は磁性材料により形成されている。可動鉄心３６は円筒状に形成されており、可動鉄心３６には、軸方向に収納孔３８が貫通形成されると共に、収納孔３８は可動鉄心３６と同軸上に円柱状の空間として形成され、主弁座部材３４と反対側は収納孔３８の小径部４０とされている。   A movable iron core 36 is slidably inserted into the sliding hole 26, and the movable iron core 36 is formed of a magnetic material. The movable iron core 36 is formed in a cylindrical shape, and a housing hole 38 is formed through the movable iron core 36 in the axial direction. The housing hole 38 is formed coaxially with the movable iron core 36 as a cylindrical space, The opposite side of the main valve seat member 34 is a small diameter portion 40 of the accommodation hole 38.

収納孔３８には主弁体４２が移動可能に挿入されており、主弁体４２は主弁座３２に着座可能に形成されている。また、主弁体４２には軸方向にパイロット流路孔４４が主弁座３２側に開口形成されており、主弁体４２が主弁座３２に着座した状態で、連通孔３０とパイロット流路孔４４とが連通し、主弁座３２の上流側と下流側とを連通するように構成されている。   A main valve body 42 is movably inserted into the storage hole 38, and the main valve body 42 is formed so as to be seated on the main valve seat 32. In addition, a pilot flow passage hole 44 is formed in the main valve body 42 in the axial direction so as to open toward the main valve seat 32. With the main valve body 42 seated on the main valve seat 32, the pilot flow hole 44 is connected to the communication hole 30 and the pilot flow hole 30. The passage hole 44 communicates with the upstream side and the downstream side of the main valve seat 32.

また、主弁体４２は、収納孔３８に摺接する本体部４２ａと、本体部４２ａよりも小径に形成され収納孔３８から主弁座部材３４側に突出した状態で配置される小径部４２ｂとを有する。   The main valve body 42 includes a main body portion 42a that is in sliding contact with the storage hole 38, a small diameter portion 42b that is formed with a smaller diameter than the main body portion 42a and protrudes from the storage hole 38 toward the main valve seat member 34. Have

尚、本実施形態では、大流出孔２、流出孔２２により流出路を形成し、大流入孔８、挿入孔４、流入孔２８、摺動孔２６により流入路を形成し、流出路と流入路とにより流路を形成している。   In this embodiment, an outflow path is formed by the large outflow hole 2 and the outflow hole 22, and an inflow path is formed by the large inflow hole 8, the insertion hole 4, the inflow hole 28, and the sliding hole 26, and the outflow path and the inflow are formed. A flow path is formed by the path.

主弁体４２にはパイロット流路孔４４に連接して装着孔４６が穿設されており、装着孔４６には、中央に連通孔４８が貫通形成されて小径部４０側にパイロット弁座５０が形成されたパイロット弁座部材５２が装着されている。本実施形態では、パイロット弁座部材５２は弾性変形可能なポリイミド樹脂、ポリエーテルエーテルケトン樹脂等により形成されている。   A mounting hole 46 is formed in the main valve body 42 so as to be connected to the pilot flow path hole 44. A communication hole 48 is formed through the mounting hole 46 in the center, and the pilot valve seat 50 is formed on the small diameter portion 40 side. A pilot valve seat member 52 formed with is attached. In the present embodiment, the pilot valve seat member 52 is made of an elastically deformable polyimide resin, polyether ether ketone resin, or the like.

収納孔３８の小径部４０には、球状に形成されたパイロット弁体５４が圧入固定されており、主弁体４２と可動鉄心３６との間の相対的な移動により、パイロット弁体５４がパイロット弁座５０に着座可能に形成されている。尚、本実施形態では、パイロット弁体５４に鋼球を用いているが、これに限らず、ポペット弁体のような形状のものでもよい。   A spherically formed pilot valve body 54 is press-fitted and fixed to the small diameter portion 40 of the storage hole 38, and the pilot valve body 54 is pilot-moved by relative movement between the main valve body 42 and the movable iron core 36. The valve seat 50 is formed to be seatable. In the present embodiment, a steel ball is used for the pilot valve element 54, but the present invention is not limited to this, and it may be shaped like a poppet valve element.

摺動孔２６には、磁性材料により形成された固定鉄心５６が圧入固定されており、コイルばねを用いた付勢部材５８がパイロット弁体５４と固定鉄心５６との間に介装されている。付勢部材５８は、先端が小径部４０内に挿入されて、円板６０を介してパイロット弁体５４をパイロット弁座５０に着座する方向に付勢している。尚、固定鉄心５６に嵌着したＯリング５７により洩れ止めが図られ、固定鉄心５６は圧入固定に限らず摺動孔２６に移動するように挿入してもよい。また、本体部材１０と固定鉄心５６とを溶接により固定して密封するようにしてもよい。   A fixed iron core 56 formed of a magnetic material is press-fitted and fixed in the sliding hole 26, and an urging member 58 using a coil spring is interposed between the pilot valve body 54 and the fixed iron core 56. . The urging member 58 has a tip inserted into the small diameter portion 40 and urges the pilot valve body 54 in the direction in which the pilot valve body 54 is seated on the pilot valve seat 50 via the disc 60. Note that leakage is prevented by an O-ring 57 fitted to the fixed iron core 56, and the fixed iron core 56 is not limited to press-fitting and may be inserted so as to move to the sliding hole 26. The main body member 10 and the fixed iron core 56 may be fixed by welding and sealed.

図２に示すように、付勢部材５８の付勢力により、パイロット弁体５４がパイロット弁座５０に着座し、パイロット弁体５４を介して主弁体４２が主弁座３２に着座した状態で、可動鉄心３６は固定鉄心５６から離間し、可動鉄心３６の端と固定鉄心５６の端との間には隙間が形成される。可動鉄心３６は、後述するコイル７０の励磁により、固定鉄心５６に吸引された際、この隙間分、移動することができるように構成されている。   As shown in FIG. 2, with the urging force of the urging member 58, the pilot valve body 54 is seated on the pilot valve seat 50, and the main valve body 42 is seated on the main valve seat 32 via the pilot valve body 54. The movable core 36 is separated from the fixed core 56, and a gap is formed between the end of the movable core 36 and the end of the fixed core 56. The movable iron core 36 is configured to move by this gap when attracted to the fixed iron core 56 by excitation of a coil 70 described later.

また、可動鉄心３６には収納孔３８の開口近傍に円環状の係合部材６２が圧入固定されており、係合部材６２には主弁体４２の本体部４２ａよりも小径で、小径部４２ｂが突出する縮径部６２ａが形成されている。   An annular engaging member 62 is press-fitted and fixed in the vicinity of the opening of the accommodation hole 38 in the movable iron core 36. The engaging member 62 has a smaller diameter than the main body 42a of the main valve body 42, and a small diameter portion 42b. The reduced diameter part 62a from which is protruded is formed.

可動鉄心３６が固定鉄心５６側に移動すると、可動鉄心３６の端が固定鉄心５６の端に突き当たる前に、まず、パイロット弁体５４がパイロット弁座５０から離間し、その後、係合部材６２の縮径部６２ａが主弁体４２の本体部４２ａに係合して、主弁体４２を主弁座３２から離間するように構成されている。可動鉄心３６に対する主弁体４２の相対移動は、主弁体４２の本体部４２ａが突き当たる可動鉄心３６の縮径部６２ａと、パイロット弁座５０に着座するパイロット弁体５４との間で規制されるように構成されている。   When the movable iron core 36 moves to the fixed iron core 56 side, the pilot valve body 54 is first separated from the pilot valve seat 50 before the end of the movable iron core 36 abuts against the end of the fixed iron core 56. The reduced diameter portion 62 a is configured to be engaged with the main body portion 42 a of the main valve body 42 to separate the main valve body 42 from the main valve seat 32. The relative movement of the main valve body 42 with respect to the movable iron core 36 is restricted between the reduced diameter portion 62a of the movable iron core 36 against which the main body 42a of the main valve body 42 abuts and the pilot valve body 54 seated on the pilot valve seat 50. It is comprised so that.

可動鉄心３６の外周には、軸方向に沿って溝６４が形成されており、溝６４と収納孔３８とを連通する接続孔６６が可動鉄心３６に形成されている。接続孔６６は収納孔３８の小径部４０側端に形成されて、主弁体４２の摺動により閉塞されない位置に設けられている。更に、溝６４と小径部４０とを連通する連通孔６８が可動鉄心３６に形成されている。尚、本実施形態では、パイロット流路孔４４、装着孔４６、連通孔４８により、パイロット流路を構成している。   A groove 64 is formed along the axial direction on the outer periphery of the movable iron core 36, and a connection hole 66 that connects the groove 64 and the storage hole 38 is formed in the movable iron core 36. The connection hole 66 is formed at the end of the storage hole 38 on the small diameter portion 40 side, and is provided at a position that is not blocked by the sliding of the main valve body 42. Further, a communication hole 68 for communicating the groove 64 and the small diameter portion 40 is formed in the movable iron core 36. In this embodiment, the pilot flow path is constituted by the pilot flow path hole 44, the mounting hole 46, and the communication hole 48.

本体部材１０の大径部１０ｂの外周には大径孔６に挿入されてコイル７０を巻き回したコイルボビン７１が外装されており、コイルボビン７１の両側端には磁性材料により形成された環状のヨーク７２，７４がそれぞれ配置されている。そして、コイルボビン７１を磁性材料により形成された円筒状のヨーク７５に収装し、ヨーク７５の両側端に環状のヨーク７２，７４をそれぞれ圧入固定して一体的に設け、大径孔６の開口側のヨーク７４は固定鉄心５６に圧入固定されている。大径孔６は蓋部材７６により閉塞されており、蓋部材７６は図示しないボルトにより弁ケース１に固定されている。   A coil bobbin 71 is wound around the outer periphery of the large-diameter portion 10b of the main body member 10 and wound around the coil 70 by being inserted into the large-diameter hole 6, and annular yokes formed of a magnetic material are formed on both ends of the coil bobbin 71. 72 and 74 are arranged, respectively. Then, the coil bobbin 71 is accommodated in a cylindrical yoke 75 formed of a magnetic material, and annular yokes 72 and 74 are respectively press-fitted and fixed integrally on both side ends of the yoke 75, and the large-diameter hole 6 is opened. The side yoke 74 is press-fitted and fixed to the fixed iron core 56. The large-diameter hole 6 is closed by a lid member 76, and the lid member 76 is fixed to the valve case 1 by a bolt (not shown).

本実施形態では、コイル７０に通電することにより、ヨーク７２、可動鉄心３６、固定鉄心５６、ヨーク７４、ヨーク７５で磁気回路が形成されるが、可動鉄心３６の端が固定鉄心５６の端に突き当たった状態でも、可動鉄心３６の他方の端がヨーク７２よりも僅かに突き出るように構成されている。   In this embodiment, a magnetic circuit is formed by the yoke 72, the movable iron core 36, the fixed iron core 56, the yoke 74, and the yoke 75 by energizing the coil 70, but the end of the movable iron core 36 is the end of the fixed iron core 56. Even in the abutted state, the other end of the movable iron core 36 is configured to slightly protrude from the yoke 72.

次に、前述した本実施形態の電磁パイロット開閉弁の作動について説明する。
弁ケース１の大流入孔８に流体としての高圧水素ガスが図示しないガスタンクから供給されると、弁ケース１の大流入孔８、挿入孔４、本体部材１０の流入孔２８を介して、本体部材１０の摺動孔２６に高圧水素ガスが導入される。高圧水素ガスの圧力は、可動鉄心３６に作用するが、可動鉄心３６の溝６４を介して可動鉄心３６と固定鉄心５６との間にも導入されるので、付勢部材５８の付勢力と高圧水素ガスの圧力との作用により、可動鉄心３６に固定されたパイロット弁体５４に主弁体４２が押されて、主弁体４２は主弁座３２に着座され、図２に示すように、閉弁状態を維持する。 Next, the operation of the above-described electromagnetic pilot on / off valve of this embodiment will be described.
When high-pressure hydrogen gas as a fluid is supplied to the large inflow hole 8 of the valve case 1 from a gas tank (not shown), the main body passes through the large inflow hole 8 of the valve case 1, the insertion hole 4, and the inflow hole 28 of the main body member 10. High-pressure hydrogen gas is introduced into the sliding hole 26 of the member 10. The pressure of the high-pressure hydrogen gas acts on the movable iron core 36, but is also introduced between the movable iron core 36 and the fixed iron core 56 via the groove 64 of the movable iron core 36. Due to the action of the pressure of the hydrogen gas, the main valve body 42 is pushed by the pilot valve body 54 fixed to the movable iron core 36, and the main valve body 42 is seated on the main valve seat 32, as shown in FIG. Keep the valve closed.

コイル７０に通電されると、可動鉄心３６が固定鉄心５６に吸引され、まず、付勢部材５８の付勢力及びパイロット弁体５４にパイロット弁座５０への着座方向に作用する高圧水素ガスの圧力による作用力に抗して、パイロット弁体５４と共に可動鉄心３６が固定鉄心５６側に摺動する。これにより、パイロット弁体５４がパイロット弁座５０から離間して、高圧水素ガスが、弁ケース１の大流入孔８、挿入孔４、本体部材１０の流入孔２８、摺動孔２６、可動鉄心３６の溝６４、接続孔６６、収納孔３８、パイロット弁座部材５２の連通孔４８、主弁体４２のパイロット流路孔４４を介して、主弁座部材３４の連通孔３０、本体部材１０の流出孔２２に流入し、連通孔３０、流出孔２２の圧力が上昇する。これにより、主弁座３２の上下流の流入孔２８と流出孔２２との差圧が小さくなり、高圧水素ガスの圧力による主弁体４２への作用力が小さくなる。   When the coil 70 is energized, the movable iron core 36 is attracted to the fixed iron core 56. First, the urging force of the urging member 58 and the pressure of the high-pressure hydrogen gas acting on the pilot valve body 54 in the seating direction on the pilot valve seat 50. The movable iron core 36 slides with the pilot valve body 54 toward the fixed iron core 56 against the acting force due to the above. As a result, the pilot valve body 54 is separated from the pilot valve seat 50, and the high-pressure hydrogen gas flows into the large inflow hole 8, the insertion hole 4, the inflow hole 28 in the main body member 10, the sliding hole 26, and the movable iron core. 36, the connection hole 66, the storage hole 38, the communication hole 48 of the pilot valve seat member 52, the pilot flow hole 44 of the main valve body 42, the communication hole 30 of the main valve seat member 34, and the main body member 10. The pressure in the communication hole 30 and the outflow hole 22 rises. Thereby, the differential pressure between the inlet hole 28 and the outlet hole 22 upstream and downstream of the main valve seat 32 is reduced, and the acting force on the main valve body 42 due to the pressure of the high-pressure hydrogen gas is reduced.

図３に示すように、パイロット弁体５４がパイロット弁座５０から離間した後、更に、可動鉄心３６が固定鉄心５６側に摺動し、係合部材６２の縮径部６２ａが主弁体４２の本体部４２ａに突き当たって、主弁体４２を可動鉄心３６と共に移動させて、主弁体４２を主弁座３２から離間させて開弁する。これにより、弁ケース１の大流入孔８が、本体部材１０の流入孔２８、摺動孔２６、主弁座部材３４の連通孔３０、本体部材１０の流出孔２２を介して、弁ケース１の大流出孔２に連通されて、高圧水素ガスが大流入孔８から大流出孔２に供給される。その際、可動鉄心３６の連通孔６８により可動鉄心３６の小径部４０が閉鎖空間になるのを防止している。   As shown in FIG. 3, after the pilot valve body 54 is separated from the pilot valve seat 50, the movable iron core 36 further slides toward the fixed iron core 56, and the reduced diameter portion 62 a of the engagement member 62 is the main valve body 42. The main valve body 42 is moved together with the movable iron core 36, and the main valve body 42 is separated from the main valve seat 32 and opened. Accordingly, the large inflow hole 8 of the valve case 1 is connected to the valve case 1 via the inflow hole 28 of the main body member 10, the sliding hole 26, the communication hole 30 of the main valve seat member 34, and the outflow hole 22 of the main body member 10. The high-pressure hydrogen gas is supplied from the large inflow hole 8 to the large outflow hole 2. At that time, the communication hole 68 of the movable iron core 36 prevents the small diameter portion 40 of the movable iron core 36 from becoming a closed space.

コイル７０への通電を遮断すると、パイロット弁体５４が付勢部材５８の付勢力により押されて、パイロット弁体５４がパイロット弁座５０を介して主弁体４２を押す。これにより、可動鉄心３６と共に主弁体４２が押されて、主弁体４２が主弁座３２に着座して閉弁される。   When the power supply to the coil 70 is cut off, the pilot valve body 54 is pushed by the urging force of the urging member 58, and the pilot valve body 54 pushes the main valve body 42 via the pilot valve seat 50. Thereby, the main valve body 42 is pushed together with the movable iron core 36, and the main valve body 42 is seated on the main valve seat 32 and closed.

コイル７０に通電した際、ヨーク７２、可動鉄心３６、固定鉄心５６、ヨーク７４、ヨーク７５で磁気回路が形成される。可動鉄心３６の先端が一方のヨーク７２よりも固定鉄心５６側に引っ込んだ状態になると、磁気力が低下してしまうが、開閉弁時に可動鉄心３６が収納孔３８内を移動しても、可動鉄心３６は一方のヨーク７２から突き出た状態にあるので、磁気力の低下を招くことがない。   When the coil 70 is energized, a magnetic circuit is formed by the yoke 72, the movable iron core 36, the fixed iron core 56, the yoke 74, and the yoke 75. When the tip of the movable iron core 36 is retracted to the fixed iron core 56 side with respect to one yoke 72, the magnetic force is reduced. However, even if the movable iron core 36 moves in the storage hole 38 during the opening / closing valve, the movable iron core 36 is movable. Since the iron core 36 protrudes from one yoke 72, the magnetic force does not decrease.

このように、可動鉄心３６に形成した収納孔３８に主弁体４２を摺動可能に挿入し、主弁体４２を可動鉄心３６内に収納したので、軸方向の長さを低減できて小型化できる。
また、可動鉄心３６を円筒状に、収納孔３８を可動鉄心３６と同軸の円柱状の空間とし、主弁体４２を可動鉄心３６の収納孔３８に収納しても、主弁体４２は可動鉄心３６のほぼ中心にあり、可動鉄心３６の収納孔３８周辺部分に磁気回路として機能する領域を確保できるので、可動鉄心３６と主弁体４２との間の相対的な移動に対して磁気回路が与える影響が小さく、主弁体４２を可動鉄心３６の収納孔３８に収納しても、開閉弁への影響は小さい。 As described above, since the main valve body 42 is slidably inserted into the storage hole 38 formed in the movable iron core 36 and the main valve body 42 is stored in the movable iron core 36, the axial length can be reduced and the size can be reduced. Can be
Even if the movable iron core 36 is cylindrical and the storage hole 38 is a cylindrical space coaxial with the movable iron core 36, and the main valve body 42 is stored in the storage hole 38 of the movable core 36, the main valve body 42 is movable. Since an area functioning as a magnetic circuit can be secured in the vicinity of the housing hole 38 of the movable iron core 36 at the center of the iron core 36, the magnetic circuit against the relative movement between the movable iron core 36 and the main valve element 42. Even if the main valve body 42 is housed in the housing hole 38 of the movable iron core 36, the influence on the on-off valve is small.

更に、パイロット弁体５４を球状に形成して収納孔３８の小径部４０に圧入固定し、主弁体４２をパイロット弁体５４が圧入固定された収納孔３８に収納することにより、組立が容易になる。また、主弁体４２が収納孔３８に摺接する本体部４２ａと、本体部４２ａより小径に形成され収納孔３８から突出した状態で配置される小径部４２ｂとを有し、小径部４２ｂが突出する収納孔３８の開口近傍に本体部４２ａの外径よりも小さい縮径部６２ａを形成し、可動鉄心３６に対する主弁体４２の軸方向への相対移動を縮径部６２ａとパイロット弁体５４との間で規制することにより、可動鉄心３６の移動で、主弁体４２を確実に移動できる。   Further, the pilot valve body 54 is formed in a spherical shape and is press-fitted and fixed to the small-diameter portion 40 of the storage hole 38, and the main valve body 42 is stored in the storage hole 38 in which the pilot valve body 54 is press-fitted and fixed. become. Further, the main valve body 42 has a main body portion 42a that is in sliding contact with the storage hole 38, and a small diameter portion 42b that is formed with a smaller diameter than the main body portion 42a and protrudes from the storage hole 38, and the small diameter portion 42b protrudes. A reduced diameter portion 62a smaller than the outer diameter of the main body portion 42a is formed in the vicinity of the opening of the storage hole 38, and the relative movement in the axial direction of the main valve body 42 with respect to the movable iron core 36 is reduced. The main valve body 42 can be reliably moved by the movement of the movable iron core 36.

以上本発明はこの様な実施形態に何等限定されるものではなく、本発明の要旨を逸脱しない範囲において種々なる態様で実施し得る。   The present invention is not limited to such embodiments as described above, and can be implemented in various modes without departing from the gist of the present invention.

１…弁ケース ２…大流出孔 ４…挿入孔 ８…大流入孔 １０…本体部材 ２２…流出孔 ２６…摺動孔 ２８…流入孔 ３２…主弁座 ３４…主弁座部材 ３６…可動鉄心 ３８…収納孔 ４２…主弁体 ４４…パイロット流路孔 ５０…パイロット弁座 ５２…パイロット弁座部材 ５４…パイロット弁体 ５６…固定鉄心 ５８…付勢部材 ６２…係合部材 ７０…コイル ７２，７４，７５…ヨーク ７６…蓋部材 DESCRIPTION OF SYMBOLS 1 ... Valve case 2 ... Large outflow hole 4 ... Insertion hole 8 ... Large inflow hole 10 ... Main body member 22 ... Outflow hole 26 ... Sliding hole 28 ... Inflow hole 32 ... Main valve seat 34 ... Main valve seat member 36 ... Movable iron core 38 ... Storage hole 42 ... Main valve body 44 ... Pilot flow hole 50 ... Pilot valve seat 52 ... Pilot valve seat member 54 ... Pilot valve body 56 ... Fixed iron core 58 ... Energizing member 62 ... Engaging member 70 ... Coil 72, 74, 75 ... yoke 76 ... lid member

Claims (4)

流路を開閉する主弁体と、
前記主弁体を軸方向に貫通するパイロット流路と、
前記パイロット流路を開閉するパイロット弁体と、
前記主弁体を収納する収納孔が形成された可動鉄心と、
前記可動鉄心をコイルへの通電により軸方向に吸引する固定鉄心と、を備え、
前記主弁体は、軸方向に移動可能に前記収納孔に収納され、
前記可動鉄心は、パイロット弁体を移動させてパイロット流路を開状態とした後、前記収納孔に収納した前記主弁体を移動させて前記流路を開くことを特徴とする電磁パイロット開閉弁。 A main valve element that opens and closes the flow path;
A pilot flow path that penetrates the main valve body in the axial direction;
A pilot valve body for opening and closing the pilot flow path;
A movable iron core formed with a storage hole for storing the main valve body;
A fixed iron core that sucks the movable iron core in the axial direction by energizing the coil, and
The main valve body is housed in the housing hole so as to be movable in the axial direction,
The movable iron core moves the pilot valve body to open the pilot flow path, and then moves the main valve body accommodated in the storage hole to open the flow path. . 前記可動鉄心は、円筒状であり、
前記収納孔は、前記可動鉄心と同軸の円柱状の空間であることを特徴とする請求項１に記載の電磁パイロット開閉弁。 The movable iron core is cylindrical,
The electromagnetic pilot on-off valve according to claim 1, wherein the storage hole is a cylindrical space coaxial with the movable iron core. 前記パイロット弁体は、球状に形成されて、前記収納孔に圧入固定され、前記主弁体は、前記パイロット弁体が圧入固定された収納孔に収納されることを特徴とする請求項１又は請求項２に記載の電磁パイロット開閉弁。 The pilot valve body is formed in a spherical shape and is press-fitted and fixed in the storage hole, and the main valve body is stored in a storage hole in which the pilot valve body is press-fitted and fixed. The electromagnetic pilot on-off valve according to claim 2. 前記主弁体は、
前記収納孔に摺接する本体部と、
前記本体部より小径に形成され前記収納孔から突出した状態で配置される小径部と、を有し、
前記小径部が突出する前記収納孔の開口近傍には前記本体部の外径よりも小さい縮径部が形成され、
前記可動鉄心に対する前記主弁体の軸方向への相対移動は、前記縮径部と前記パイロット弁体との間で規制されることを特徴とする請求項１ないし請求項３のいずれか１項に記載の電磁パイロット開閉弁。 The main valve body is
A main body that is in sliding contact with the storage hole;
A small-diameter portion formed in a smaller diameter than the main body portion and arranged in a state protruding from the storage hole,
A reduced diameter portion smaller than the outer diameter of the main body portion is formed in the vicinity of the opening of the storage hole from which the small diameter portion protrudes,
The relative movement in the axial direction of the main valve body with respect to the movable iron core is regulated between the reduced diameter portion and the pilot valve body. The electromagnetic pilot on-off valve described in 1.
JP2009242542A 2009-10-21 2009-10-21 Solenoid pilot on-off valve Pending JP2011089568A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2009242542A JP2011089568A (en) 2009-10-21 2009-10-21 Solenoid pilot on-off valve
PCT/JP2010/068618 WO2011049177A1 (en) 2009-10-21 2010-10-21 Solenoid valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2009242542A JP2011089568A (en) 2009-10-21 2009-10-21 Solenoid pilot on-off valve

Publications (1)

Publication Number Publication Date
JP2011089568A true JP2011089568A (en) 2011-05-06

Family

ID=43900400

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2009242542A Pending JP2011089568A (en) 2009-10-21 2009-10-21 Solenoid pilot on-off valve

Country Status (2)

Country Link
JP (1) JP2011089568A (en)
WO (1) WO2011049177A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013238280A (en) * 2012-05-15 2013-11-28 Toyota Motor Corp Valve device for high-pressure tank
JP2013258217A (en) * 2012-06-12 2013-12-26 Hitachi Automotive Systems Steering Ltd Solenoid, solenoid valve, and variable capacitance type pump

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19530899C2 (en) * 1995-08-23 2003-08-21 Bosch Gmbh Robert Solenoid valve, in particular for a slip-controlled, hydraulic brake system for motor vehicles
JP4296613B2 (en) * 1997-12-05 2009-07-15 株式会社デンソー Solenoid valve and brake control device
JP2003329161A (en) * 2002-05-14 2003-11-19 Toyooki Kogyo Co Ltd Solenoid valve
JP3759470B2 (en) * 2002-05-15 2006-03-22 日信工業株式会社 solenoid valve
JP2007092859A (en) * 2005-09-28 2007-04-12 Fuji Koki Corp Pilot type solenoid valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013238280A (en) * 2012-05-15 2013-11-28 Toyota Motor Corp Valve device for high-pressure tank
JP2013258217A (en) * 2012-06-12 2013-12-26 Hitachi Automotive Systems Steering Ltd Solenoid, solenoid valve, and variable capacitance type pump

Also Published As

Publication number Publication date
WO2011049177A1 (en) 2011-04-28

Similar Documents

Publication Publication Date Title
JP5421059B2 (en) solenoid valve
EP2570648B1 (en) Electromagnetic fuel-injection valve
JP4330943B2 (en) High pressure valve for hydrogen gas and decompression device for hydrogen gas
CN103104389B (en) Electro-magneto fuel injector
US20060081801A1 (en) Solenoid valve
JP2010065780A (en) Solenoid on-off valve
JP7275682B2 (en) valve device
US20140084195A1 (en) Electromagnetic actuator
US9163744B2 (en) Solenoid valve
JP2011089568A (en) Solenoid pilot on-off valve
US20180038317A1 (en) Gas fuel supply apparatus
JP5982703B2 (en) Pressure reducing valve
JP2014062524A (en) Fuel injection valve
JP2005163896A (en) Solenoid opening and closing valve
JP2018028334A (en) Solenoid valve device
JP2024530731A (en) Solenoid valve and hydrogen tank system equipped with solenoid valve
JP2014066177A (en) Fuel injection valve
JP4672610B2 (en) Solenoid valve and manufacturing method thereof
CN107131165A (en) Magnetic valve and pressure fluid control device
CN111465789B (en) Electromagnetic sleeve for hydrogen valve
JP2005163958A (en) Solenoid relief valve
JP2013238280A (en) Valve device for high-pressure tank
KR102645573B1 (en) valve device
JP2013224681A (en) Poppet valve press fit structure
JP2006349142A (en) Low leakage poppet solenoid valve