JP2007303542A - Electromagnetic fluid control valve - Google Patents

Electromagnetic fluid control valve Download PDF

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Publication number
JP2007303542A
JP2007303542A JP2006132135A JP2006132135A JP2007303542A JP 2007303542 A JP2007303542 A JP 2007303542A JP 2006132135 A JP2006132135 A JP 2006132135A JP 2006132135 A JP2006132135 A JP 2006132135A JP 2007303542 A JP2007303542 A JP 2007303542A
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iron core
valve
movable iron
valve seat
tip
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JP2006132135A
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Japanese (ja)
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Hajime Fukuyo
元 福世
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Keihin Corp
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Keihin Corp
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Priority to JP2006132135A priority Critical patent/JP2007303542A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an electromagnetic fluid control valve capable of blocking a valve seat stably without increasing electric current consumption of an electromagnetic coil greatly even when a longitudinal shaft axial line of a movable iron core and a longitudinal shaft axial line of a valve seat hole are arranged by inclining at a crossing angle. <P>SOLUTION: A tip part 1a of the movable iron core 1 arranged by opposing to a fixed iron core 13 is inserted and arranged in a valve supporting body 2 provided with a valve element 3, and the movable iron core 1 and the valve supporting body 2 are abutted on each other and are mutually connected. The valve element 3 like a flat plate is mounted at the outer periphery of a cylindrical part 2a of the valve supporting body 2, and a movable iron core insertion hole 2h having a bottom part 2h1 from a rear end part 2g toward a tip B side is provided. A tip face 1b of the tip part 1a of the movable iron core 1 is formed into an annular face, and the tip part 1a of the movable iron core 1 is inserted and arranged in the movable iron core insertion hole 2h of the valve supporting body 2. The tip face 1b of the movable iron core 1 is abutted on and is arranged in the bottom part 2h1 of the movable iron core insertion hole 2h, and the movable iron core 1 and the valve supporting body 2 are synchronously moved to open, close, and control a valve seat hole 19c by the valve element 3 mounted on the valve supporting body 2. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、筒状のコイルボビンの外周に電磁コイルが巻回されるとともにコイルボビンに固定鉄心が固定配置され、又固定鉄心に対向して可動鉄心が移動自在に配置され、可動鉄心の先端に配置された平板状の弁体が、弁本体に穿設される流路を、流入側流路と流出側流路とに区分する弁座に対向配置され、前記可動鉄心と同期的に移動する弁体が、弁座を開閉制御する電磁流体制御弁に関する。そして、本発明になる電磁制御弁は、例えばスロットルボデーにおける絞り弁の上流側吸気路と下流側吸気路とを連絡するバイパスエア通路の開閉制御用、あるいは内燃機関の排気管内への２次空気の導入の為の２次空気通路の開閉制御用として用いられる。   In the present invention, an electromagnetic coil is wound around the outer periphery of a cylindrical coil bobbin, a fixed iron core is fixedly arranged on the coil bobbin, and a movable iron core is movably arranged opposite to the fixed iron core, and is arranged at the tip of the movable iron core. The flat plate-shaped valve body is disposed opposite to a valve seat that divides a flow path drilled in the valve body into an inflow side flow path and an outflow side flow path, and moves in synchronization with the movable iron core The body relates to an electromagnetic fluid control valve that controls opening and closing of a valve seat. The electromagnetic control valve according to the present invention is, for example, used for opening / closing control of a bypass air passage that connects an upstream intake passage and a downstream intake passage of a throttle valve in a throttle body, or secondary air into an exhaust pipe of an internal combustion engine. Is used for controlling the opening and closing of the secondary air passage for the introduction of.

従来、一般的に用いられる電磁流体制御弁は図９に示される。図９により説明すると、電磁装置Ｓは以下によって形成される。１０は、円筒状の筒部１０ａの後端Ａ側に上方鍔部１０ｂが形成され、先端Ｂ側に下方鍔部１０ｃが形成されたコイルボビンであり、コイルボビン１０の筒部１０ａの外周には電磁コイル１２が巻き回される。尚、以下の説明において後端Ａとは図において上方をいうもので、先端Ｂとは図において下方をいうものである。コイルボビン１０の筒部１０ａの先端Ｂ側には固定鉄心１３が固定配置されるもので、固定鉄心１３の後端Ａ側は筒部１０ａ内に挿入配置され、固定鉄心１３の先端側は筒部１０ａより先端Ｂ側へ突出するとともに外側方に拡大する鍔部１３ａが形成される。１４は、コイルボビン１０の筒部１０ａ内に移動自在に配置されるとともに、固定鉄心１３の後端面１３ｂに対向配置される可動鉄心であり、可動鉄心１４の先端部１４ａは、固定鉄心1３の中心を通って鍔部１３ａより先端Ｂ側へ突出して配置される。又、１５は固定鉄心１３の鍔部１３ａの後端面上に配置される先端側磁極片であり、この先端側磁極片１５は、フ状に折曲げ形成された接続磁極片１６に磁気結合される。又前記電磁コイルの巻き始め線及び巻き終り線は（図示せず）はカプラ１７内に突出する２本の端子１７ａ、１７ｂにそれぞれ電気接続され、かかる端子１７ａ、１７ｂを介して電磁コイル１２に通電される。以上の構成よりなる電磁装置Ｓによれば、端子１７ａ、１７ｂを介して電磁コイル１２に電気が供給されると、可動鉄心１４と固定鉄心１３との間に電磁吸引力が生起し、可動鉄心１４は固定鉄心１３に吸引され、先端部１４ａを含む可動鉄心１４は図５において先端Ｂ側に移動する。   A conventionally used electromagnetic fluid control valve is shown in FIG. Referring to FIG. 9, the electromagnetic device S is formed by the following. Reference numeral 10 denotes a coil bobbin in which an upper flange portion 10b is formed on the rear end A side of the cylindrical tube portion 10a and a lower flange portion 10c is formed on the tip end B side. The coil 12 is wound. In the following description, the rear end A refers to the upper side in the figure, and the front end B refers to the lower side in the figure. The fixed iron core 13 is fixedly arranged on the front end B side of the cylindrical portion 10a of the coil bobbin 10. The rear end A side of the fixed iron core 13 is inserted into the cylindrical portion 10a, and the front end side of the fixed iron core 13 is the cylindrical portion. A flange 13a is formed that protrudes toward the tip B from 10a and expands outward. Reference numeral 14 denotes a movable iron core that is movably disposed in the cylindrical portion 10 a of the coil bobbin 10 and that is opposed to the rear end surface 13 b of the fixed iron core 13, and the front end portion 14 a of the movable iron core 14 is the center of the fixed iron core 13. It passes through the collar 13a and protrudes toward the tip B side. Reference numeral 15 denotes a tip-side magnetic pole piece disposed on the rear end face of the flange portion 13a of the fixed iron core 13. This tip-side magnetic pole piece 15 is magnetically coupled to a connecting magnetic pole piece 16 formed in a bent shape. The The winding start line and the winding end line (not shown) of the electromagnetic coil are electrically connected to two terminals 17a and 17b protruding into the coupler 17, respectively, and are connected to the electromagnetic coil 12 via the terminals 17a and 17b. Energized. According to the electromagnetic device S having the above-described configuration, when electricity is supplied to the electromagnetic coil 12 via the terminals 17a and 17b, an electromagnetic attractive force is generated between the movable iron core 14 and the fixed iron core 13, and the movable iron core. 14 is sucked by the fixed iron core 13, and the movable iron core 14 including the tip 14a moves to the tip B side in FIG.

そして、前記電磁装置は、弁本体１８にネジ等によって螺着配置されるものであり、可動鉄心１４の先端部１４ａには、弁本体１８に穿設される流路を流入側流路１９ａと流出側流路１９ｂとに区分する弁座１９ｃに臨む弁体２０が配置される。弁体２０は、可動鉄心１４の先端部１４ａに図６に示される如く配置される。まず可動鉄心１４の先端部１４ａには、以下が形成される。１４ｂは縮小径部であって、縮小径部１４ｂの先端Ｂ側には、側方に向かう平坦面１４ｃをなす下方係止部１４ｄが形成され、縮小径部１４ｂの後端Ａ側には側方に向かう平坦面１４ｅをなす第１上方係止部１４ｆが形成される。又、第１上方係止部１４ｆより更に後端Ａ側には第１上方係止部１４ｆの直径より大なる直径を有し、側方に向かう平坦面１４ｇをなす第２上方係止部１４ｈが形成される。いいかえると、縮小径部１４ｂは下方係止部１４ｄと第１上方係止部１４ｆとの間に形成され、下方係止部１４ｄの平坦面１４ｃは後端Ａ側に臨む環状平面を有し、第１上方係止部１４ｆの平坦面１４ｅ、第２上方係止部１４ｈの平坦面１４ｇは先端Ｂ側に臨む環状平面を有する。弁体２０は平板状のゴム材料によって形成され、中心部に挿入孔２０ａが貫通して形成され、先端Ｂ側には平坦面をなす弁座面２０ｂが形成され、後端Ａ側には平坦面をなす上面２０ｃが形成される。尚、挿入孔２０ａの孔径は、縮小径部１４ｂの直径と同径かもしくは少し小径であることが望ましい。２１は、金属材料によって形成される平板部材であり、その中心には、第１上方係止部１４ｆの直径より大径で且つ第２係止部１４ｈの直径より小径をなすバカ孔２１ａが穿設され、更にその板厚は第１上方係止部１４ｆの高さより小さく形成される。   The electromagnetic device is screwed to the valve main body 18 with a screw or the like, and a flow path drilled in the valve main body 18 is connected to the inflow side flow path 19a at the distal end portion 14a of the movable iron core 14. A valve body 20 facing the valve seat 19c divided into the outflow side flow path 19b is arranged. The valve body 20 is disposed at the distal end portion 14a of the movable iron core 14 as shown in FIG. First, the following is formed at the front end portion 14 a of the movable iron core 14. Reference numeral 14b denotes a reduced diameter portion, and a lower locking portion 14d forming a laterally flat surface 14c is formed on the distal end B side of the reduced diameter portion 14b, and a side on the rear end A side of the reduced diameter portion 14b. A first upper locking portion 14f is formed, which forms a flat surface 14e that faces the direction. Further, the second upper locking portion 14h having a diameter larger than the diameter of the first upper locking portion 14f on the rear end A side further than the first upper locking portion 14f and forming a flat surface 14g toward the side. Is formed. In other words, the reduced diameter portion 14b is formed between the lower locking portion 14d and the first upper locking portion 14f, and the flat surface 14c of the lower locking portion 14d has an annular plane facing the rear end A side, The flat surface 14e of the first upper locking portion 14f and the flat surface 14g of the second upper locking portion 14h have an annular flat surface facing the tip B side. The valve body 20 is formed of a flat rubber material, and an insertion hole 20a is formed through the center thereof. A flat seat surface 20b is formed on the front end B side, and a flat surface is formed on the rear end A side. A top surface 20c forming a surface is formed. The hole diameter of the insertion hole 20a is preferably the same as or slightly smaller than the diameter of the reduced diameter portion 14b. Reference numeral 21 denotes a flat plate member made of a metal material, and a fool hole 21a having a diameter larger than that of the first upper locking portion 14f and smaller than that of the second locking portion 14h is formed at the center thereof. Furthermore, the plate | board thickness is formed smaller than the height of the 1st upper latching | locking part 14f.

そして可動鉄心１４の先端部１４ａに弁体２０が以下によって組付けられる。まず、可動鉄心１４の先端から後端Ａ側に向けて平板部材２１のバカ孔２１ａが挿入配置され、次いでゴム材料によって形成された弁体２０の挿入孔２０ａが側方に引張られてその直径が拡開され、この状態で挿入孔２０ａが縮小径部１４ｂに嵌着される。以上によると、挿入孔２０ａは、縮小径部１４ｂに対して軽圧縮状態で挿入配置され、弁体２０の弁座面２０ｂの中心部が下方係止部１４ｄの平坦面１４ｃに当接配置されるとともに上面２０ｃの中心部が第１上方係止部１４ｆの平坦面１４ｅに当接配置される。一方、平板部材２１はバカ孔２１ａが第１上方係止部１４ｆの外周に臨んで配置されるとともに平板部材２１は、弁体２０の上面２０ｃと第２上方係止部１４ｈの平坦面１４ｇとの間に配置される。尚２２は可動鉄心１４を固定鉄心１３の後端面１３ｂより離反するよう付勢するスプリングである。（スプリング２２は図５に示される）   And the valve body 20 is assembled | attached to the front-end | tip part 14a of the movable iron core 14 by the following. First, the fool hole 21a of the flat plate member 21 is inserted and arranged from the front end of the movable iron core 14 toward the rear end A side, and then the insertion hole 20a of the valve body 20 formed of a rubber material is pulled sideways and the diameter thereof is increased. In this state, the insertion hole 20a is fitted into the reduced diameter portion 14b. According to the above, the insertion hole 20a is inserted and disposed in a lightly compressed state with respect to the reduced diameter portion 14b, and the center portion of the valve seat surface 20b of the valve body 20 is disposed in contact with the flat surface 14c of the lower locking portion 14d. In addition, the center portion of the upper surface 20c is disposed in contact with the flat surface 14e of the first upper locking portion 14f. On the other hand, the flat plate member 21 is arranged such that the hole 21a faces the outer periphery of the first upper locking portion 14f, and the flat plate member 21 includes the upper surface 20c of the valve body 20 and the flat surface 14g of the second upper locking portion 14h. It is arranged between. Reference numeral 22 denotes a spring that urges the movable iron core 14 to move away from the rear end surface 13 b of the fixed iron core 13. (Spring 22 is shown in FIG. 5)

以上をもって電磁流体制御弁が形成されるもので、図９において、電磁コイル１２の非通電状態において、固定鉄心１３と可動鉄心１４との間に電磁吸引力が生起しないので、可動鉄心１４はスプリング２２のバネ力によって後端Ａ側に付勢され、弁体２０は弁座１９ｃを開放保持し、流入側流路１９ａと流出側流路１９ｂとが連通される。一方、端子１７ａ、１７ｂより電磁コイル１２に向けて通電されると、固定鉄心１３と可動鉄心１４との間に磁気吸引力が生起し、可動鉄心１４はスプリング２２のバネ力に抗して固定鉄心１４に吸引されて、先端Ｂ側へ移動し、これによって弁体２０の弁座面２０ｂが弁座１９ｃに当接して、流入側流路１９ａと流出側流路１９ｂとを遮断することができる。   The electromagnetic fluid control valve is formed as described above. In FIG. 9, when the electromagnetic coil 12 is not energized, no electromagnetic attractive force is generated between the fixed iron core 13 and the movable iron core 14, so that the movable iron core 14 is a spring. 22 is urged toward the rear end A by the spring force, and the valve body 20 holds the valve seat 19c open, and the inflow side channel 19a and the outflow side channel 19b communicate with each other. On the other hand, when energized from the terminals 17 a and 17 b toward the electromagnetic coil 12, a magnetic attractive force is generated between the fixed iron core 13 and the movable iron core 14, and the movable iron core 14 is fixed against the spring force of the spring 22. It is sucked by the iron core 14 and moves to the tip B side, whereby the valve seat surface 20b of the valve body 20 comes into contact with the valve seat 19c, thereby blocking the inflow side flow path 19a and the outflow side flow path 19b. it can.

かかる従来の電磁流体制御弁によると、弁本体１８に形成された弁座１９ｃに直交する弁座１９ｃの長手軸心線Ｘ−Ｘと、可動鉄心１４の長手軸心線Ｙ−Ｙとが同芯に配置されず、図１０に示されるごとく相対的に交差角Ｚをもって配置された場合、弁体２０の弁座面２０ｂによる弁座１９ｃの良好な閉塞を得られない。   According to such a conventional electromagnetic fluid control valve, the longitudinal axis XX of the valve seat 19c perpendicular to the valve seat 19c formed in the valve body 18 and the longitudinal axis YY of the movable iron core 14 are the same. When the valve seat 19c is not disposed on the core and is disposed at a relatively intersecting angle Z as shown in FIG. 10, the valve seat 19c cannot be satisfactorily blocked by the valve seat surface 20b of the valve body 20.

これは以下の理由による。図１１、図１２を用いて詳細に説明する。図１１は、弁体２０の弁座面２０ｂが弁座１９ｃに対して、初期の当接状態を示すもので、図１１において弁座面２０ｂの左方端面２０ｂ１が弁座１９ｃの左方端部１９ｃ１に当接するも、弁座面２０ｂの右方端面２０ｂ２と弁座１９ｃの右方端部１９ｃ２との間には交差角Ｚに相当する間隙Ｗが存在する。そして、前記弁座面２０ｂの右方端面２０ｂ２を弁座１９ｃの右方端部１９ｃ２に当接させる為には、可動鉄心１４を更に先端Ｂ側へ移動させるものであるが、このとき可動鉄心１４の先端Ｂ側への押圧力は可動鉄心１４の長手軸心方向Ｙ−Ｙにおいて、第２上方係止部１４ｈの平坦面１４ｇから平板部材２１の後端面に加えられ、更に平板部材２１の先端面が弁体２０の上面２０ｃを押圧し、弁体２０の左方端面２０ｂ１を図１２の二点鎖線に示す如く大きく圧縮変形させることにより弁座面２０ｂの右方端面２０ｂ２をはじめて弁座１９ｃの右方端部１９ｃ２に当接し、もって弁体２０の弁座面２０ｂによって弁座１９ｃを閉塞することができるものである。   This is due to the following reason. This will be described in detail with reference to FIGS. 11 shows an initial contact state of the valve seat surface 20b of the valve body 20 with respect to the valve seat 19c. In FIG. 11, the left end surface 20b1 of the valve seat surface 20b is the left end of the valve seat 19c. Although contacting the portion 19c1, there is a gap W corresponding to the crossing angle Z between the right end surface 20b2 of the valve seat surface 20b and the right end portion 19c2 of the valve seat 19c. In order to bring the right end surface 20b2 of the valve seat surface 20b into contact with the right end portion 19c2 of the valve seat 19c, the movable iron core 14 is further moved to the tip B side. 14 is applied to the rear end surface of the flat plate member 21 from the flat surface 14g of the second upper locking portion 14h in the longitudinal axis direction YY of the movable iron core 14, and further, The front end surface presses the upper surface 20c of the valve body 20, and the left end surface 20b1 of the valve body 20 is largely compressed and deformed as shown by the two-dot chain line in FIG. 12 to thereby form the right end surface 20b2 of the valve seat surface 20b for the first time. The valve seat 19c can be closed by the valve seat surface 20b of the valve body 20 by contacting the right end 19c2 of 19c.

以上によると、弁座面２０ｂの左方端面２０ｂ１を図１２の二点鎖線に示す如く大きく圧縮変形する為の強い磁気吸引力を可動鉄心１４に付与する必要があり、これによると電磁コイル１２の巻き数を増加したり、あるいは電磁コイル１２への供給電流を増加する必要があり、電磁装置の大型化、消費電流の増加につながり好ましいものでない。又、弁座面２０ｂの左方端面２０ｂ１が強い押圧力をもって大きく圧縮変形され、これが長期間に渡って行われることによると、弁座面２０ｂの左方端面２０ｂ１の磨耗が弁座面２０ｂの右方端面２０ｂ２より早期に進行する恐れがあり、良好な閉塞を長期間に渡って得られない恐れがあり、弁体２０の交換時期を早める必要がある。   According to the above, it is necessary to apply a strong magnetic attraction force to the movable iron core 14 for greatly compressing and deforming the left end surface 20b1 of the valve seat surface 20b as shown by a two-dot chain line in FIG. It is necessary to increase the number of windings or increase the current supplied to the electromagnetic coil 12, which leads to an increase in the size of the electromagnetic device and an increase in current consumption. Further, when the left end surface 20b1 of the valve seat surface 20b is greatly compressed and deformed with a strong pressing force, and this is performed over a long period of time, the wear of the left end surface 20b1 of the valve seat surface 20b causes the wear of the valve seat surface 20b. There is a possibility of progressing earlier than the right end face 20b2, and there is a possibility that good blockage may not be obtained over a long period of time, and the replacement timing of the valve body 20 needs to be advanced.

本発明は、前記課題に鑑み成されたもので、電磁コイル、消費電流を大きく増加させることがなく、長期間に渡って安定して弁座を開閉制御することのできる電磁流体制御弁を提供することを目的とするものである。   The present invention has been made in view of the above problems, and provides an electromagnetic fluid control valve capable of controlling the opening and closing of a valve seat stably over a long period of time without greatly increasing the electromagnetic coil and current consumption. It is intended to do.

本発明になる電磁流体制御弁は前記目的達成の為に、周囲に電磁コイルが巻回されたコイルボビンの内方に、固定鉄心と、固定鉄心に対向する可動鉄心が配置され、可動鉄心の先端に配置される平板状の弁体が、弁本体に穿設される流路を、流入側流路と流出側流路とに区分する弁座に対向配置される電磁流体制御弁において、弁支持体は、その先端部にゴム材料にて平板状に形成される弁体が装着され、後端部に向けて可動鉄心挿入孔が開口して穿設され、前記弁支持体の後端部に開口する可動鉄心挿入孔内に可動鉄心の先端部を挿入して可動鉄心の先端面を可動鉄心挿入孔の底部に当接配置するとともに、可動鉄心の先端面又は可動鉄心挿入孔の底部の少なくとも何れか一方を球状面として形成したことを第1の特徴とする。   In order to achieve the above object, the electromagnetic fluid control valve according to the present invention has a fixed iron core and a movable iron core facing the fixed iron core disposed inside a coil bobbin around which an electromagnetic coil is wound. In the electromagnetic fluid control valve in which the flat plate-shaped valve body is arranged opposite to the valve seat that divides the flow path drilled in the valve body into an inflow side flow path and an outflow side flow path, The body is provided with a valve body formed in a flat plate shape with a rubber material at its front end, a movable iron core insertion hole is opened toward the rear end, and the rear end of the valve support is formed at the rear end. The tip of the movable core is inserted into the opening of the movable core insertion hole, the tip end surface of the movable core is placed in contact with the bottom of the movable core insertion hole, and at least the tip surface of the movable core or the bottom of the movable core insertion hole. The first feature is that either one is formed as a spherical surface.

又、本発明は前記第１の特徴に加え、前記可動鉄心の先端部又は可動鉄心挿入孔の底部の少なくとも一方を合成樹脂材料によって形成したことを第2の特徴とする。   Further, in addition to the first feature, the present invention has a second feature that at least one of the tip of the movable core or the bottom of the movable core insertion hole is formed of a synthetic resin material.

本発明の電磁流体制御弁の第１の特徴によると、弁本体に形成された弁座に直交する弁座の長手軸心線Ｘ−Ｘと、可動鉄心の長手軸心線Ｙ−Ｙとが相対的に交差角Ｚをもって配置された場合、弁体の弁座面が弁座に対して初期の当接状態において、弁座面の左方端面が弁座の左方端部に当接し、弁座面の右方端面と弁座の右方端部との間に交差角Ｚに相当する間隙Ｗが存在する。然しながら、可動鉄心が更に先端側へ吸引されて移動すると、可動鉄心の先端面の球状面によって押圧される弁支持体は、間隙Ｗが形成される側の弁座面の右方端面が弁座の右方端部に近づくよう回転し、弁体の弁座面は確実に弁座に当接される。従って、従来の電磁流体制御弁の如く、弁体の弁座面の一部を大きく圧縮変形させることがないので、可動鉄心に対して大なる磁気吸引力を付与する必要がなく、もって電磁コイルの大型化、及び消費電流を増加することなく、確実に弁体により弁座を閉塞制御できたものである。又、弁体の弁座面の大なる圧縮変形がなくなったことにより弁座面の局部的な磨耗がなく、長期間に渡って安定した弁体の閉塞性を維持でき、メンテナンス期間を長くすることができる。   According to the first feature of the electromagnetic fluid control valve of the present invention, the longitudinal axis XX of the valve seat orthogonal to the valve seat formed in the valve body and the longitudinal axis YY of the movable iron core are When the valve seat surface of the valve body is in an initial contact state with respect to the valve seat, the left end surface of the valve seat surface contacts the left end portion of the valve seat when the valve seat surface of the valve body is in an initial contact state with the valve seat. A gap W corresponding to the crossing angle Z exists between the right end surface of the valve seat surface and the right end portion of the valve seat. However, when the movable iron core is further sucked and moved to the tip side, the valve support pressed by the spherical surface of the tip surface of the movable iron core has the right end surface of the valve seat surface on the side where the gap W is formed as the valve seat. The valve seat surface of the valve body is reliably brought into contact with the valve seat. Therefore, unlike the conventional electromagnetic fluid control valve, a part of the valve seat surface of the valve body is not greatly compressed and deformed, so that it is not necessary to apply a large magnetic attractive force to the movable iron core, and the electromagnetic coil The valve seat can be reliably closed and controlled by the valve body without increasing the size and increasing the current consumption. In addition, since there is no significant compression deformation of the valve seat surface of the valve body, there is no local wear of the valve seat surface, stable valve body obstruction can be maintained over a long period of time, and the maintenance period is extended. be able to.

又、本発明の第２の特徴によると、可動鉄心の先端部又は可動鉄心挿入孔の底部の少なくとも一方を合成樹脂材料によって形成したので、可動鉄心の先端面と可動鉄心挿入孔との当接部における摩擦抵抗を小さくすることができ、これによって弁支持体を極めて軽い押圧力をもって且つ円滑に回転移動することができるもので、弁体による弁座の閉塞性をより向上できる。   According to the second feature of the present invention, since at least one of the tip of the movable core or the bottom of the movable core insertion hole is formed of a synthetic resin material, the contact between the tip surface of the movable core and the movable core insertion hole The frictional resistance at the portion can be reduced, whereby the valve support can be rotated and moved smoothly with a very light pressing force, and the closing of the valve seat by the valve can be further improved.

以下、本発明になる電磁制御弁の一実施例について説明する。尚、本発明の電磁流体制御弁と図９に示される従来の電磁制御弁とは、可動鉄心の先端部の形状及び弁体部分が異なるもので同一構造部分は同一符号を使用して説明を省略する。図１には本発明の電磁流体制御弁の一実施例が示される。図１及び図２を用いて説明する。１は可動鉄心であり、可動鉄心１の先端部１ａは固定鉄心１３の鍔部１３ａより更に先端Ｂ側に向かって突出し、下端の先端面１ｂは、球状に形成される。２は弁支持体であり、図２において先端Ｂから後端Ａに向かう筒部２ａが形成され、その後端部２ｇから先端Ｂ側に向けて可動鉄心挿入孔２ｈが穿設される。そして、弁支持体２の先端Ｂ側の先端部２ｂには平板状であってゴム材料よりなる弁体３と平板状の平板部材４が装着される。具体的には、弁支持体２の先端部２ｂに縮小径部２ｃが形成され、縮小径部２ｃの先端Ｂ側に平坦面をなす下方係止部２ｄが形成され、縮小径部２ｃの後端Ａ側に平坦面をなす第１上方係止部２ｄが形成され、更に第１上方係止部２ｄの後端Ａ側に平坦面をなす第２上方係止部２ｅが形成される。すなわち、下方係止部２ｄの平坦面は後端Ａ側に臨んで環状に形成され、第１及び第２上方係止部２ｄ、２ｅの平坦面は先端Ｂ側に臨んで環状に形成される。弁体３は、先端Ｂ側に平坦面をなす弁座面３ａが形成され、弁体３の中心部には縮小径部２ｃに対して軽圧縮状態で挿入される挿入孔３ｂが貫通して穿設される。４は弁体３の上面３ｃ上に配置される平板部材であり、その中心部には縮小径部２ｃの直径より大径であって第２上方係止部２ｅの直径より小径をなすバカ孔４ａが穿設される。   Hereinafter, an embodiment of an electromagnetic control valve according to the present invention will be described. The electromagnetic fluid control valve of the present invention and the conventional electromagnetic control valve shown in FIG. 9 are different in the shape of the tip of the movable iron core and the valve body part, and the same structural parts are described using the same reference numerals. Omitted. FIG. 1 shows an embodiment of the electromagnetic fluid control valve of the present invention. This will be described with reference to FIGS. Reference numeral 1 denotes a movable iron core, the tip end portion 1a of the moveable iron core 1 protrudes further toward the tip end B side than the flange portion 13a of the fixed iron core 13, and the tip end surface 1b at the lower end is formed in a spherical shape. In FIG. 2, a valve support 2 is formed with a cylindrical portion 2a from the tip B to the rear end A, and a movable core insertion hole 2h is drilled from the rear end 2g toward the tip B. A valve body 3 made of a rubber material and a flat plate member 4 are mounted on the tip 2b of the valve support 2 on the tip B side. Specifically, a reduced diameter portion 2c is formed at the distal end portion 2b of the valve support body 2, a lower locking portion 2d having a flat surface is formed on the distal end B side of the reduced diameter portion 2c, and the rear end of the reduced diameter portion 2c. A first upper locking portion 2d having a flat surface is formed on the end A side, and a second upper locking portion 2e having a flat surface is formed on the rear end A side of the first upper locking portion 2d. That is, the flat surface of the lower locking portion 2d is formed in an annular shape facing the rear end A, and the flat surfaces of the first and second upper locking portions 2d, 2e are formed in an annular shape facing the tip B side. . The valve body 3 is formed with a valve seat surface 3a that forms a flat surface on the tip B side, and an insertion hole 3b that is inserted into the reduced diameter portion 2c in a light compression state passes through the central portion of the valve body 3. Drilled. Reference numeral 4 denotes a flat plate member disposed on the upper surface 3c of the valve body 3, and a central hole having a diameter larger than the diameter of the reduced diameter portion 2c and smaller than the diameter of the second upper locking portion 2e. 4a is drilled.

そして、弁支持体２の先端部２ｂから後端Ａ側に向けて平板部材４のバカ孔４ａが挿入され、次いで弁体３の挿入孔３ｂが側方に拡開されて縮小径部２ｃの外周に軽圧縮状態で挿入配置される。以上によると、弁体３は、縮小径部２ｃに対して軽圧縮状態で挿入配置され、弁座面３ａが弁支持体２の下方係止部２ｄの平坦面上に配置される。すなわち弁座面３ａは、先端Ｂ側に臨んで配置される。又、平板部材４は、弁体３の上面３ｃと第２上方係止部２ｅとの間に配置される。上記によれば弁体３及び平板部材４は、下方係止部２ｄと第２上方係止部２ｅとの間に固定配置される。   Then, the hole 4a of the flat plate member 4 is inserted from the front end portion 2b of the valve support 2 toward the rear end A side, and then the insertion hole 3b of the valve body 3 is expanded laterally to form the reduced diameter portion 2c. Inserted into the outer periphery in a lightly compressed state. According to the above, the valve body 3 is inserted and arranged in a light compression state with respect to the reduced diameter portion 2 c, and the valve seat surface 3 a is arranged on the flat surface of the lower locking portion 2 d of the valve support 2. That is, the valve seat surface 3a is arranged facing the tip B side. The flat plate member 4 is disposed between the upper surface 3c of the valve body 3 and the second upper locking portion 2e. According to the above, the valve body 3 and the flat plate member 4 are fixedly disposed between the lower locking portion 2d and the second upper locking portion 2e.

そして、前記弁体を備える弁支持体２の可動鉄心挿入孔２ｈ内に可動鉄心１が挿入配置されるもので、このとき弁体支持体２はスプリング２２によって後端Ａ側に付勢されるので、可動鉄心挿入孔２ｈの底部２ｈ１が可動鉄心１の先端面１ｂに弾性的に付勢されて当接される。   The movable core 1 is inserted into the movable core insertion hole 2h of the valve support 2 including the valve body. At this time, the valve body support 2 is biased toward the rear end A by the spring 22. Therefore, the bottom 2h1 of the movable core insertion hole 2h is elastically urged and brought into contact with the front end surface 1b of the movable core 1.

以上によると、電磁コイル１２に通電されて、固定鉄心１３と可動鉄心１との間に磁気吸引力が作用すると、可動鉄心１は固定鉄心１３に吸引されて先端Ｂ側へ移動するもので、これによると可動鉄心１の先端面１ｂが可動鉄心挿入孔２ｈの底部２ｈ１を先端Ｂ側へ押圧するもので、可動鉄心１と弁支持体２は同期的に先端Ｂ側へ移動し、弁体３の弁座面３ａが弁座１９ｃに当接し、流入側流路１９ａと流出側流路１９ｂとを遮断する。   According to the above, when the electromagnetic coil 12 is energized and a magnetic attractive force acts between the fixed iron core 13 and the movable iron core 1, the movable iron core 1 is attracted to the fixed iron core 13 and moves to the tip B side. According to this, the front end surface 1b of the movable iron core 1 presses the bottom 2h1 of the movable iron core insertion hole 2h toward the front end B, and the movable iron core 1 and the valve support body 2 move synchronously to the front end B side. 3 is in contact with the valve seat 19c to block the inflow side channel 19a and the outflow side channel 19b.

ここで、本発明になる電磁流体制御弁によると、弁本体１８に形成された弁座１９ｃに直交する弁座１９ｃの長手軸心線Ｘ−Ｘと可動鉄心１の長手軸心線Ｙ−Ｙとが同芯に配置されず、図３に示される如く相対的に交差角Ｚをもって配置された場合であっても弁体３の弁座面３ａにより、弁座１９ｃを良好に閉塞できる。   Here, according to the electromagnetic fluid control valve according to the present invention, the longitudinal axis XX of the valve seat 19c perpendicular to the valve seat 19c formed in the valve body 18 and the longitudinal axis YY of the movable iron core 1 are provided. Are not arranged concentrically, and the valve seat 19c can be satisfactorily closed by the valve seat surface 3a of the valve body 3 even when arranged with a relative crossing angle Z as shown in FIG.

これは以下の理由による。図３は、弁座１９ｃの長手軸心線Ｘ−Ｘと可動鉄心１の長手軸心線Ｙ−Ｙとが相対的に交差角Ｚをもって配置されるとともに弁支持体２が可動鉄心１の長手軸心線Ｙ−Ｙと同芯状態で配置され、弁体３の弁座面３ａが弁座１９ｃを開放した状態であり、弁体３の弁座面３ａが弁座１９ｃに傾斜配置されても弁座１９ｃは開放保持される。   This is due to the following reason. In FIG. 3, the longitudinal axis XX of the valve seat 19 c and the longitudinal axis YY of the movable iron core 1 are arranged with a relative crossing angle Z, and the valve support 2 is the longitudinal length of the movable iron core 1. The valve seat surface 3a of the valve body 3 is in a state of opening the valve seat 19c, and the valve seat surface 3a of the valve body 3 is inclined to the valve seat 19c. The valve seat 19c is held open.

次に弁体３による弁座１９ｃの閉塞行程について説明する。図４は、弁体３による弁座１９ｃの閉塞初期行程を示すもので、電磁コイル１２に向けて端子１７ａ、１７ｂより通電される。以上によると、固定鉄心１３と可動鉄心１との間に磁気吸引力が生起し、可動鉄心１は、スプリング２２（図９に示される）のバネ力に抗して先端Ｂ側へ移動するとともに可動鉄心１の先端面１ｂが弁支持体２の可動鉄心挿入孔２ｈの底部２ｈ１を押圧し、かかる閉塞初期行程において、弁体３の弁座面３ａの図４における左方端面３ａ１がまず弁座１９ｃの左方端部１９ｃ１に当接する。かかる状態において、弁座面３ａの右方端面３ａ２と弁座１９ｃの右方端部１９ｃ２との間には交差角Ｚに相当する間隙Ｗが存在する。   Next, the closing stroke of the valve seat 19c by the valve body 3 will be described. FIG. 4 shows an initial closing process of the valve seat 19 c by the valve body 3, and electricity is supplied from the terminals 17 a and 17 b toward the electromagnetic coil 12. According to the above, a magnetic attractive force is generated between the fixed iron core 13 and the movable iron core 1, and the movable iron core 1 moves to the tip B side against the spring force of the spring 22 (shown in FIG. 9). The front end surface 1b of the movable iron core 1 presses the bottom 2h1 of the movable iron core insertion hole 2h of the valve support 2, and in this initial closing process, the left end surface 3a1 of the valve seat surface 3a of the valve body 3 in FIG. It contacts the left end 19c1 of the seat 19c. In such a state, a gap W corresponding to the crossing angle Z exists between the right end surface 3a2 of the valve seat surface 3a and the right end portion 19c2 of the valve seat 19c.

そして可動鉄心１は、前記磁気吸引力によって更に継続して先端Ｂ側へ押圧されるものであり、これによると可動鉄心１の先端面１ｂを形成する球状面が弁支持体２を図５において時計方向に回転させる。すなわち、弁座面３ａの左方端面３ａ１と弁座１９ｃの左方端部１９ｃ１の当接部を基準として時計方向に回転させる。これによって弁体３の右方端面３ａ２が弁座１９ｃの右方端部１９ｃ２に当接し、もって弁体３の弁座面３ａ全体を弁座１９ｃに当接でき、弁座１９ｃを弁座面３ａによって確実に閉塞できる。かかる弁体２による閉塞終期行程が図５に示される。   The movable iron core 1 is continuously pressed toward the tip B side by the magnetic attraction force. According to this, the spherical surface forming the tip surface 1b of the movable iron core 1 serves as the valve support 2 in FIG. Rotate clockwise. That is, the valve seat surface 3a is rotated clockwise with reference to the contact portion between the left end surface 3a1 of the valve seat surface 3a and the left end portion 19c1 of the valve seat 19c. As a result, the right end surface 3a2 of the valve body 3 abuts on the right end portion 19c2 of the valve seat 19c, so that the entire valve seat surface 3a of the valve body 3 can abut on the valve seat 19c, and the valve seat 19c is brought into contact with the valve seat surface. It can be reliably closed by 3a. FIG. 5 shows the closing end stroke of the valve body 2.

以上の如く、本発明の電磁流体制御弁によると、可動鉄心１と弁体３が装着される弁支持体２とが分離されるとともに、可動鉄心１の先端部１ａが弁支持体２の可動鉄心挿入孔２ｈ内に挿入配置され、更に可動鉄心１の先端面１ｂに形成される球状面が可動鉄心挿入孔２ｈの平坦面に形成される底部２ｈ１に当接して配置されたので、弁体３による閉塞終期行程において弁支持体２を交差角Ｚに応じて回転させることができ、もって可動鉄心１の長手軸心線Ｙ−Ｙと弁座１９ｃの長手軸心線Ｘ−Ｘとが交差角Ｚをもって配置された場合にあっても電磁コイル１２の磁気吸引力を増加させることなく確実に弁座１９ｃを閉塞できる。従って、電磁コイル１２の大型化、電磁コイル１２の消費電流を増加させる必要がない。又、弁体３による弁座１９ｃの閉塞終期行程において、弁支持体２を回転させて弁体３を弁座１９ｃに当接したので、従来の如く、弁体の弁座面の一部を局所的に大きく圧縮変形させることがないので、弁座面の一部が異常に磨耗することがなく長期に渡って閉塞性のすぐれた電磁流体制御弁を提供できる。   As described above, according to the electromagnetic fluid control valve of the present invention, the movable iron core 1 and the valve support 2 to which the valve body 3 is attached are separated, and the tip 1a of the movable iron core 1 is movable of the valve support 2. Since the spherical surface formed on the front end surface 1b of the movable core 1 is disposed in contact with the bottom 2h1 formed on the flat surface of the movable core insertion hole 2h. 3, the valve support 2 can be rotated in accordance with the crossing angle Z in the closing stroke end stroke, so that the longitudinal axis YY of the movable iron core 1 and the longitudinal axis XX of the valve seat 19c intersect. Even when arranged with the angle Z, the valve seat 19c can be reliably closed without increasing the magnetic attractive force of the electromagnetic coil 12. Therefore, it is not necessary to increase the size of the electromagnetic coil 12 and increase the current consumption of the electromagnetic coil 12. Further, in the closing stroke end stage of the valve seat 19c by the valve body 3, the valve support body 2 is rotated and the valve body 3 is brought into contact with the valve seat 19c. Since there is no large local compression and deformation, a part of the valve seat surface does not wear abnormally, and an electromagnetic fluid control valve that is excellent in blockage over a long period of time can be provided.

又、可動鉄心１の先端部１ａの先端面１ｂとそれに当接する可動鉄心挿入孔２ｈの底部２ｈ１は、その何れか一方が球状面をなすか、あるいは図６に示す如く、先端面１ｂ、底部２ｈ１ともに球状面をなしてもよい。このとき底部２ｈ１の球状面の半径Ｒ１を先端面１ｂの球状面の半径Ｒ２より大とすると更に好ましい。   Further, either one of the tip surface 1b of the tip portion 1a of the movable core 1 and the bottom portion 2h1 of the movable core insertion hole 2h that abuts on it forms a spherical surface, or as shown in FIG. Both 2h1 may form a spherical surface. At this time, it is more preferable that the radius R1 of the spherical surface of the bottom portion 2h1 is larger than the radius R2 of the spherical surface of the tip surface 1b.

更に、可動鉄心１の先端部１ａの先端面１ｂ、あるいは可動鉄心挿入孔２ｈの底部２ｈ１の何れか一方を６−６ナイロン等の合成樹脂材料によって形成すると、先端面１ｂと底部２ｈ１との摩擦抵抗を軽減でき、弁体３の閉塞終期行程において、弁支持体２の回転をより一層円滑に行うことができ弁座１９ｃの閉塞性を更に向上できる。図７には可動鉄心１の先端面１ｂを含む先端部１ａを合成樹脂材料で形成した樹脂プラグ７を可動鉄心１に装着した例が示されるもので、図８には可動鉄心挿入孔２ｈを有底筒状の樹脂ボビン８によって形成し、この樹脂ボビン８が弁支持体２に挿入した例が示される。   Furthermore, if either one of the front end surface 1b of the front end 1a of the movable iron core 1 or the bottom 2h1 of the movable iron core insertion hole 2h is formed of a synthetic resin material such as 6-6 nylon, the friction between the front end surface 1b and the bottom 2h1. The resistance can be reduced, and the valve support 2 can be rotated more smoothly in the final closing stroke of the valve body 3, and the closing performance of the valve seat 19c can be further improved. FIG. 7 shows an example in which a resin plug 7 in which a distal end portion 1a including a distal end surface 1b of the movable iron core 1 is formed of a synthetic resin material is attached to the movable iron core 1. FIG. 8 shows a movable iron core insertion hole 2h. An example in which the bottomed cylindrical resin bobbin 8 is formed and the resin bobbin 8 is inserted into the valve support 2 is shown.

本発明になる電磁流体制御弁の一実施例を示す縦断面図。The longitudinal cross-sectional view which shows one Example of the electromagnetic fluid control valve which becomes this invention. 図１の弁支持体を含む可動鉄心の先端部及び弁座部分を示す要部拡大図。The principal part enlarged view which shows the front-end | tip part and valve seat part of a movable iron core containing the valve support body of FIG. 図１における可動鉄心の長手軸心線Ｙ−Ｙと弁座孔の長手軸心線Ｘ−Ｘとが交差角Ｚをもって配置され、且つ弁座の開放状態を示す要部拡大図。The principal part enlarged view which shows the open state of the valve seat which the longitudinal axis YY of the movable iron core in FIG. 1 and the longitudinal axis XX of the valve seat hole are arrange | positioned with the crossing angle Z. 図３の状態にある弁体が弁座に当接された初期閉塞行程における要部拡大図。FIG. 4 is an enlarged view of a main part in an initial closing process in which the valve body in the state of FIG. 3 is in contact with a valve seat. 図４の状態にある弁体が弁座に当接された終期閉塞行程における要部拡大図。FIG. 5 is an enlarged view of a main part in an end-stage closing stroke in which the valve body in the state of FIG. 4 is in contact with a valve seat. 本発明の電磁流体制御弁の可動鉄心と弁支持体の他の実施例を示す要部拡大断面図。The principal part expanded sectional view which shows the other embodiment of the movable iron core of the electromagnetic fluid control valve of this invention, and a valve support body. 本発明の電磁流体制御弁の可動鉄心の他の実施例を示す要部拡大断面図。The principal part expanded sectional view which shows the other Example of the movable iron core of the electromagnetic fluid control valve of this invention. 本発明の電磁流体制御弁の弁支持体の他の実施例を示す要部拡大断面図。The principal part expanded sectional view which shows the other Example of the valve support body of the electromagnetic fluid control valve of this invention. 従来の電磁流体制御弁を示す縦断面図。The longitudinal cross-sectional view which shows the conventional electromagnetic fluid control valve. 図９の弁体を含む可動鉄心と弁座部分を示す要部拡大図であって可動鉄心の長手軸心線Ｙ−Ｙと弁座の長手軸心線Ｘ−Ｘとが交差角Ｚをもって配置され、且つ弁座の開放状態を示す要部拡大図。9 is an enlarged view of a main part including the movable iron core and the valve seat portion including the valve body of FIG. 9, and the longitudinal axis YY of the movable core and the longitudinal axis XX of the valve seat are arranged with an intersection angle Z. The principal part enlarged view which is made and shows the open state of a valve seat. 図１０における弁体が弁座を閉塞した閉塞初期行程における要部拡大図。The principal part enlarged view in the obstruction | occlusion initial stroke which the valve body in FIG. 10 obstruct | occluded the valve seat. 図１１における弁体が弁座を閉塞した閉塞終期行程における要部拡大図。The principal part enlarged view in the obstruction | occlusion end process in which the valve body in FIG. 11 obstruct | occluded the valve seat.

符号の説明Explanation of symbols

１ 可動鉄心
１ａ 先端部
１ｂ 先端面
２ 弁支持体
２ｂ 先端部
２ｇ 後端部
２ｈ 可動鉄心挿入孔
２ｈ１ 底部
３ 弁体
１９ｃ 弁座
DESCRIPTION OF SYMBOLS 1 Movable iron core 1a Front end part 1b Front end surface 2 Valve support body 2b Front end part 2g Rear end part 2h Movable core insertion hole 2h1 Bottom part 3

Claims (2)

周囲に電磁コイルが巻回されたコイルボビンの内方に、固定鉄心と、固定鉄心に対向する可動鉄心が配置され、可動鉄心の先端に配置される平板状の弁体が、弁本体に穿設される流路を、流入側流路と流出側流路とに区分する弁座に対向配置される電磁流体制御弁において、弁支持体２は、その先端部２ｂにゴム材料にて平板状に形成される弁体３が装着され、後端部２ｇに向けて可動鉄心挿入孔２ｈが開口して穿設され、
前記弁支持体の後端部２ｇに開口する可動鉄心挿入孔２ｈ内に可動鉄心１の先端部１ａを挿入して可動鉄心１の先端面１ｂを可動鉄心挿入孔２ｈの底部２ｈ１に当接配置するとともに、可動鉄心１の先端面１ｂ又は可動鉄心挿入孔２ｈの底部２ｈ１の少なくとも何れか一方を球状面として形成したことを特徴とする電磁流体制御弁。 A fixed iron core and a movable iron core facing the fixed iron core are placed inside a coil bobbin around which an electromagnetic coil is wound, and a flat plate-like valve element placed at the tip of the movable iron core is drilled in the valve body. In the electromagnetic fluid control valve disposed opposite to the valve seat that divides the flow path into the inflow side flow path and the outflow side flow path, the valve support 2 is formed in a flat plate shape with a rubber material at the tip 2b. The formed valve body 3 is mounted, and the movable iron core insertion hole 2h is opened toward the rear end 2g.
The distal end portion 1a of the movable core 1 is inserted into the movable core insertion hole 2h that opens at the rear end 2g of the valve support, and the distal end surface 1b of the movable core 1 is disposed in contact with the bottom 2h1 of the movable core insertion hole 2h. In addition, the electromagnetic fluid control valve is characterized in that at least one of the front end surface 1b of the movable iron core 1 or the bottom 2h1 of the movable iron core insertion hole 2h is formed as a spherical surface. 前記可動鉄心の先端部１ａ又は可動鉄心挿入孔２ｈの底部２ｈ１の少なくとも一方を合成樹脂材料によって形成したことを特徴とする請求項１記載の電磁流体制御弁。

2. The electromagnetic fluid control valve according to claim 1, wherein at least one of the front end portion 1a of the movable iron core or the bottom portion 2h1 of the movable iron core insertion hole 2h is formed of a synthetic resin material.

JP2006132135A 2006-05-11 2006-05-11 Electromagnetic fluid control valve Pending JP2007303542A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012154295A (en) * 2011-01-28 2012-08-16 Denso Corp High pressure pump
JP2013087802A (en) * 2011-10-14 2013-05-13 Aisin Seiki Co Ltd Fluid control valve
JP2015152093A (en) * 2014-02-14 2015-08-24 株式会社ケーヒン solenoid valve
JP2015532480A (en) * 2012-09-28 2015-11-09 エマーソン プロセス マネージメント レギュレーター テクノロジーズインコーポレイテッド Self-aligning disc
JP2018040486A (en) * 2016-09-09 2018-03-15 アイシン精機株式会社 Fluid control valve
CN111692345A (en) * 2019-03-13 2020-09-22 株式会社不二工机 Electromagnetic valve
JP7433187B2 (en) 2020-10-08 2024-02-19 三菱電機株式会社 Butterfly valve and exhaust gas recirculation valve

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012154295A (en) * 2011-01-28 2012-08-16 Denso Corp High pressure pump
JP2013087802A (en) * 2011-10-14 2013-05-13 Aisin Seiki Co Ltd Fluid control valve
JP2015532480A (en) * 2012-09-28 2015-11-09 エマーソン プロセス マネージメント レギュレーター テクノロジーズインコーポレイテッド Self-aligning disc
JP2015152093A (en) * 2014-02-14 2015-08-24 株式会社ケーヒン solenoid valve
JP2018040486A (en) * 2016-09-09 2018-03-15 アイシン精機株式会社 Fluid control valve
CN111692345A (en) * 2019-03-13 2020-09-22 株式会社不二工机 Electromagnetic valve
CN111692345B (en) * 2019-03-13 2024-01-05 株式会社不二工机 Electromagnetic valve
JP7433187B2 (en) 2020-10-08 2024-02-19 三菱電機株式会社 Butterfly valve and exhaust gas recirculation valve

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