JP3488862B2 - Solenoid valve - Google Patents
Solenoid valveInfo
- Publication number
- JP3488862B2 JP3488862B2 JP2000299442A JP2000299442A JP3488862B2 JP 3488862 B2 JP3488862 B2 JP 3488862B2 JP 2000299442 A JP2000299442 A JP 2000299442A JP 2000299442 A JP2000299442 A JP 2000299442A JP 3488862 B2 JP3488862 B2 JP 3488862B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- press
- mounting hole
- solenoid
- adjusting plug
- 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.)
- Expired - Lifetime
Links
Description
【発明の詳細な説明】
【０００１】
【発明の属する技術分野】本発明は、一端にソレノイド
部を付設したバルブ本体の弁孔に、ソレノイド部に発生
する電磁推力により一方向へ押圧されるスプール弁を嵌
装し、バルブ本体の他端に形成した取付孔に固定される
調節栓とスプール弁との間に、該弁を前記電磁推力と反
対方向へ付勢する弁ばねを縮設したソレノイド弁に関す
る。
【０００２】
【従来の技術】従来、かゝるソレノイド弁において、調
節栓をバルブ本体の取付孔に螺合して、その螺合深さに
より弁ばねのセット荷重を調節し、その調節後、調節栓
の螺合部をバルブ本体外側からかしめて固定することが
知られている（例えば特開平２−１２９４８４号公報参
照）。
【０００３】
【発明が解決しようとする課題】しかしながら、上記の
ようなソレノイド弁では、調節栓の螺合部の固定のため
に、かしめが不可欠であり、しかもそのかしめ時には、
螺合部の微小間隙により調節栓が軸方向に多少とも変位
して、調節済の弁ばねのセット荷重に狂いを生じること
がある。
【０００４】本発明は、かゝる事情に鑑みてなされたも
ので、弁ばねのセット荷重の調節後、調節栓の固定を確
実にして調節栓に無用な変位を生じさせることがない前
記ソレノイド弁を提供することを目的とする。
【０００５】
【課題を解決するための手段】上記目的を達成するため
に、本発明は、有底薄肉円筒状に形成した調節栓をバル
ブ本体の取付孔に圧入して、その圧入深さにより弁ばね
のセット荷重を調節し、前記圧入により調節栓を取付孔
に、該調節栓の無用の軸方向変位を防ぐように固定した
ことを特徴とする。
【０００６】
【作 用】本発明によれば、調節栓の取入孔への圧入深
さを加減することにより弁ばねのセット荷重を調整する
ことができる。そして調節栓は取付孔への圧入により既
に固定されているから、調節栓の無用な軸方向変位を防
ぐことができる。
【０００７】
【発明の実施の形態】以下、本発明の実施の形態を、添
付図面に例示した本発明の実施例に基づいて説明する。
【０００８】添付図面において、図１は、本発明の実施
例に係るソレノイドバルブの縦断面図、図２は図１の要
部の拡大断面図、図３は図１の要部の変形例を示す拡大
断面図、図４は図１の要部の別の変形例を示す拡大断面
図である。
【０００９】図１において、油圧制御用のソレノイド弁
１は、リニアソレノイド部Ｓとバルブ部Ｖとからなる。
リニアソレノイド部Ｓは、ハウジング３、コイル４、固
定コア５、可動コア６、及びこの可動コア６の中心部に
固設される出力杆７を備え、コイル４を流れる電流値に
比例した電磁推力が可動コア６に発生して、出力杆７を
図で左方へ作動するようになっている。出力杆７は固定
コア５に設けた軸受８に摺動自在に支承される。
【００１０】バルブ部Ｖは、固定コア５側でハウジング
３とかしめ結合されるバルブ本体１０と、このバルブ本
体１０に出力杆７と同軸状に形成された弁孔１１に嵌装
されて出力杆７の先端に当接するスプール弁１２と、こ
のスプール弁１２を出力杆７との当接方向へ付勢する弁
ばね１３と、バルブ本体１０に固定されて弁ばね１３の
外端を支承する調節栓１４とから構成される。スプール
弁体１２の外端には、弁ばね１３の内端が嵌合する短軸
１２ａが形成される。
【００１１】バルブ本体１０には、リニアソレノイド部
Ｓ側から順に第１〜第６ポート１５1 〜１５6 が設けら
れ、第１ポート１５1 は、出力杆７及びスプール弁１２
の当接部を収容するように形成されると共に、×印で示
すように油溜に開放される。また第２〜第５ポート１５
2 〜１５5 はそれぞれスプール弁１２の外周を囲むよう
に形成される。そして第４ポート１５4 は、油圧源１６
に連なる高圧油路１７に接続され、第３ポート１５
3 は、油圧作動部１８に連なる制御油路１９に接続さ
れ、第２，第５ポート１５2 ，１５5 は×印で示すよう
に油溜に開放される。また第６ポート１５6 は、スプー
ル弁１２の外端が臨む反力室２０に連通するように形成
され、且つオリフィス２１を介して制御油路１９の途中
に接続される。 而して、リニアソレノイド部Ｓの非通
電時には、スプール弁１２は弁ばね１３の弾発力をもっ
て、図１で右動限位置を占め、第３及び第４ポート１５
3 ，１５4 間を遮断すると共に、第２及び第３ポート１
５2 ，１５3 間を導通させるので、制御油路１９は油溜
に開放される。また、リニアソレノイド部Ｓの通電時に
は、その電流値に比例した電磁推力が可動コア６から出
力杆７を介してスプール弁１２に作用する。これに伴い
スプール弁１２が弁ばね１２の反発力に抗して左方へ変
位すると、第２及び第３ポート１５2 ，１５3 間を遮断
すると共に、第３及び第４ポート１５3 ，１５4 間を導
通させることにより、高圧油路１７から制御油路１９に
油圧が供給される。そして、その油圧は、油圧作動部１
８に直ちに供給される外、オリフィス２１を介して反力
室２０にも伝達し、その油圧による押圧力と弁ばね１３
の反発力とが反力としてスプール弁１２に作用し、これ
を出力杆７側へ押圧する。その結果、スプール弁１２
は、出力杆７の電磁推力と上記反力との釣合いを図るよ
うに左右動し、油圧作動部１８には、リニアソレノイド
部Ｓに流れる電流値に比例した油圧を供給するようにな
る。
【００１２】さて、調節栓１４のバルブ本体１０への取
付構造について図２により説明する。バルブ本体１０の
外端部には、弁孔１１と同軸状に大径の取付孔２２が設
けられ、これに調節栓１４が取付けられる。この調節栓
１４は、金属板の絞り加工により、円筒状周壁１４ａの
一端に閉塞端壁１４ｂを連設して薄肉有底円筒状に成形
される。その際、閉塞端壁１４ｂには前記弁ばね１３外
端に嵌入する支持凸部２３が同時に形成される。
【００１３】この調節栓１４はバルブ本体１０の取付孔
２２に圧入されるものであって、その圧入後、調節栓１
４の周壁１４ａは、それを内側からかしめピン２７で押
圧することにより、取付孔２２の内周壁に部分的に食込
むようにかしめられる。即ち、両者の圧入嵌合面に互い
に密合する凹，凸部２５，２６が形成される。
【００１４】次に、この実施例の作用について説明す
る。
【００１５】ソレノイド弁１のバルブ部Ｖの組立に際し
ては、先ずスプール弁１２を取付孔２２を通してバルブ
本体１０の弁孔１１に挿入し、続いて弁ばね１３を挿入
して、その内端部をスプール弁１２外端の短軸１２ａに
嵌合する。次いで閉塞端壁１４ｂの支持凸部２３で弁ば
ね１３の外端を支承しながら調節栓１４の周壁１４ａを
取付孔２２に没入するまで圧入し、その圧入深さにより
弁ばね１３のセット荷重を調節する。この場合、第４ポ
ート１５4 （入力ポート）に油圧源１６を接続した状態
でリニアソレノイド部Ｓに規定の電流を流して、第３ポ
ート１５3 （出力ポート）の油圧を測定しながら調節栓
１４の取付孔２２への圧入を徐々に進めていき、第３ポ
ート１５3 の油圧が所定値まで低下したときが弁ばね１
３に所定のセット荷重が与えられたときであり、このと
き調節栓１４の圧入を止める。
【００１６】調節栓１４の圧入後は、前述のように調節
栓１４の周壁１４ａをその内側からかしめピン２７で押
圧することにより、両者の圧入嵌合面に互いに密合する
凹，凸部２５，２６を形成して、調節栓１４の固定をよ
り確実にするのであるが、調節栓１４は取入孔２２への
圧入により既に固定されているから、かしめピン２７に
よるかしめ時でも調節栓１４の無用な軸方向変位を防
ぎ、弁ばね１３のセット荷重の狂いを回避できる。また
前記密合する凹，凸部２５，２６は、いずれもかしめ加
工により初めて形成されるものであり、予め取付孔２２
内周面に設けた凹部に合せて調節栓１４の周壁１４ａに
凸部をかしめ形成するものと異なり、周壁１４ａにおけ
るかしめ位置の許容範囲が広く、かしめ加工を容易、確
実に行うことができる。さらに取付孔２２に没入した調
節栓１４は他物との衝突を回避できるから、位置ずれを
起こすこともない。
【００１７】図３は本発明の変形例を示すもので、調節
栓１４の閉塞端壁１４ｂに弁ばね１３の固定端を受容す
る支持凹部２４を形成した点を除けば前記実施例と同様
の構成であり、図中、前記実施例との対応部には同一符
号を付す。
【００１８】この変形例によれば、支持凹部２４の深さ
分だけ弁ばね１３の長さを増加させ、ばね定数を低めに
設定することができる。
【００１９】図４は本発明の別の変形例を示すもので、
取付孔２２内面及び周壁１４ａにかしめ加工される凹，
凸部２５，２６を環状に形成した点を除けば前記実施例
と同様の構成であり、図中、前記実施例との対応部には
同一の符号を付す。
【００２０】この実施例によれば、かしめによる調節栓
１４の固定強度をより高めることができる。
【００２１】本発明は、上記実施例及び変形例に限定さ
れるものではなく、その要旨を逸脱することなく、種々
の設計変更が可能である。例えば、かしめにより形成さ
れる凹、凸部２５，２６を図２の半球状に代えて円錐状
あるいは角錐状とすることもでき、またその形成個数は
１個でも複数個でもよい。
【００２２】
【発明の効果】以上のように本発明によれば、有底薄肉
円筒状に形成した調節栓をバルブ本体の取付孔に圧入す
る際、その圧入深さを加減することにより、弁ばねのセ
ット荷重を調整することができる。そして、この調節栓
は、上記圧入により、該調節栓の無用な軸方向変位を防
ぐように固定されていることから、弁ばねのセット荷重
を狂わすことがない。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spool which is pressed in one direction by electromagnetic thrust generated in a solenoid portion into a valve hole of a valve body having a solenoid portion at one end. Solenoid having a valve spring fitted between a control valve and a spool valve fixed to a mounting hole formed at the other end of the valve body and biasing the valve in a direction opposite to the electromagnetic thrust. About the valve. 2. Description of the Related Art Conventionally, in such a solenoid valve, an adjusting plug is screwed into a mounting hole of a valve body, and a set load of a valve spring is adjusted by a screwing depth. It is known that a screwing portion of an adjusting plug is caulked from the outside of the valve body and fixed (for example, see Japanese Patent Application Laid-Open No. 2-129484). [0003] However, in the solenoid valve as described above, caulking is indispensable for fixing the screwing portion of the adjusting plug, and at the time of caulking,
The adjusting plug may be displaced in the axial direction more or less due to the minute gap in the threaded portion, and the set load of the adjusted valve spring may be deviated. SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and the above-described solenoid which ensures that the adjusting plug is securely fixed after the set load of the valve spring is adjusted so as not to cause unnecessary displacement of the adjusting plug. The purpose is to provide a valve. [0005] In order to achieve the above object, the present invention provides an adjusting plug formed in a thin cylindrical shape with a bottom and press-fitted into a mounting hole of a valve body, and the press-fitting depth is determined by the press-fitting depth. The set load of the valve spring is adjusted , and the adjusting plug is fixed to the mounting hole by the press-fitting so as to prevent unnecessary axial displacement of the adjusting plug . According to the present invention, the set load of the valve spring can be adjusted by adjusting the depth of press-fitting of the adjusting plug into the intake hole. Since the adjusting plug is already fixed by press-fitting into the mounting hole, unnecessary axial displacement of the adjusting plug can be prevented. An embodiment of the present invention will be described below based on an embodiment of the present invention illustrated in the accompanying drawings. FIG. 1 is a longitudinal sectional view of a solenoid valve according to an embodiment of the present invention, FIG. 2 is an enlarged sectional view of a main part of FIG. 1, and FIG. 3 is a modified example of a main part of FIG. FIG. 4 is an enlarged sectional view showing another modification of the main part of FIG. In FIG. 1, a solenoid valve 1 for hydraulic control comprises a linear solenoid portion S and a valve portion V.
The linear solenoid section S includes a housing 3, a coil 4, a fixed core 5, a movable core 6, and an output rod 7 fixed to the center of the movable core 6. Is generated in the movable core 6 to move the output rod 7 to the left in the figure. The output rod 7 is slidably supported by a bearing 8 provided on the fixed core 5. The valve portion V is fitted to a valve body 10 which is caulked to the housing 3 on the fixed core 5 side, and is fitted into a valve hole 11 formed coaxially with the output rod 7 in the valve body 10 so that the output rod is provided. 7, a valve spring 13 for urging the spool valve 12 in the direction of contact with the output rod 7, and an adjustment fixed to the valve body 10 to support the outer end of the valve spring 13. And a stopper 14. At the outer end of the spool valve body 12, a short shaft 12a into which the inner end of the valve spring 13 fits is formed. [0011] valve body 10, first to sixth ports 15 1 to 15 6 is provided from the linear solenoid portion S side in this order, the first port 15 1, the output rod 7 and the spool valve 12
And is opened to the oil reservoir as indicated by the mark x. Also, the second to fifth ports 15
Each 2-15 5 is formed so as to surround the outer periphery of the spool valve 12. The fourth port 15 4, the hydraulic source 16
The third port 15 is connected to the high pressure oil passage 17
3 is connected to a control oil passage 19 leading to the hydraulic unit 18, the second, the fifth port 15 2, 15 5 is opened to the oil reservoir, as indicated by × marks. The sixth port 15 6, are formed so as to communicate with the reaction chamber 20 facing the outer end of the spool valve 12, is and connected to the middle of the control oil passage 19 via the orifice 21. When the linear solenoid portion S is not energized, the spool valve 12 occupies the rightmost position in FIG.
3, 15 with blocking between 4, second and third ports 1
5 2, 15 since the conduction between 3, the control oil passage 19 is opened to the oil reservoir. When the linear solenoid S is energized, an electromagnetic thrust proportional to the current value acts on the spool valve 12 from the movable core 6 via the output rod 7. Accordingly, when the spool valve 12 is displaced to the left against the repulsive force of the valve spring 12, the connection between the second and third ports 15 2 and 15 3 is cut off, and the third and fourth ports 15 3 and 15 3 are closed. By conducting between the four , hydraulic pressure is supplied from the high-pressure oil passage 17 to the control oil passage 19. The hydraulic pressure is applied to the hydraulic operating unit 1
8 and is also transmitted to the reaction force chamber 20 through the orifice 21 so that the pressing force by the oil pressure and the valve spring 13
The repulsive force acts on the spool valve 12 as a reactive force, and presses this toward the output rod 7 side. As a result, the spool valve 12
Moves left and right so as to balance the electromagnetic thrust of the output rod 7 with the above-mentioned reaction force, and supplies a hydraulic pressure proportional to a current value flowing through the linear solenoid portion S to the hydraulic operating portion 18. Now, a structure for attaching the adjusting plug 14 to the valve body 10 will be described with reference to FIG. At the outer end of the valve body 10, a large-diameter mounting hole 22 is provided coaxially with the valve hole 11, and the adjusting plug 14 is mounted on the mounting hole 22. The adjusting plug 14 is formed into a thin-walled bottomed cylinder by drawing a metal plate and connecting a closed end wall 14b to one end of a cylindrical peripheral wall 14a. At this time, a support projection 23 that fits into the outer end of the valve spring 13 is formed on the closed end wall 14b at the same time. The adjusting plug 14 is press-fit into the mounting hole 22 of the valve body 10, and after the press-fitting, the adjusting plug 1
The peripheral wall 14 a of 4 is caulked so as to partially bite into the inner peripheral wall of the mounting hole 22 by pressing it from the inside with the caulking pin 27. That is, concave and convex portions 25 and 26 are formed on the two press-fitting surfaces so as to be in close contact with each other. Next, the operation of this embodiment will be described. At the time of assembling the valve portion V of the solenoid valve 1, first, the spool valve 12 is inserted into the valve hole 11 of the valve body 10 through the mounting hole 22, and then the valve spring 13 is inserted. The spool valve 12 is fitted to the short shaft 12a at the outer end. Next, while supporting the outer end of the valve spring 13 with the support projection 23 of the closed end wall 14b, the peripheral wall 14a of the adjusting plug 14 is pressed into the mounting hole 22 until it is inserted into the mounting hole 22, and the set load of the valve spring 13 is reduced by the press-fitting depth. Adjust. In this case, while the hydraulic pressure source 16 is connected to the fourth port 15 4 (input port), a specified current is applied to the linear solenoid unit S, and while the hydraulic pressure of the third port 15 3 (output port) is measured, the adjustment plug is adjusted. 14 will promote gradually pressed into the mounting hole 22 of the valve spring 1 when the oil pressure of the third port 15 3 is lowered to a predetermined value
This is a time when a predetermined set load is applied to 3, and at this time, the press-fitting of the adjusting plug 14 is stopped. After the adjusting plug 14 is press-fitted, the peripheral wall 14a of the adjusting plug 14 is pressed by the caulking pin 27 from the inside thereof as described above, so that the concave and convex portions 25 which are closely fitted to the press-fitting fitting surfaces of both. , 26 are formed to make the adjustment plug 14 more secure. Since the adjustment plug 14 is already fixed by press-fitting into the intake hole 22, the adjustment plug 14 is secured even when swaging with the caulking pin 27. Of the valve spring 13 can be prevented, and the set load of the valve spring 13 can be avoided. Further, the indented concave and convex portions 25 and 26 are formed for the first time by caulking.
Unlike the case where the convex portion is formed on the peripheral wall 14a of the adjusting plug 14 by caulking in accordance with the concave portion provided on the inner peripheral surface, the allowable range of the caulking position on the peripheral wall 14a is wide, and the caulking can be performed easily and reliably. Furthermore, since the adjusting plug 14 immersed in the mounting hole 22 can avoid collision with another object, no displacement occurs. FIG. 3 shows a modification of the present invention, which is the same as the above embodiment except that a supporting recess 24 for receiving the fixed end of the valve spring 13 is formed in the closed end wall 14b of the adjusting plug 14. This is a configuration, and in the figure, the same reference numerals are given to parts corresponding to the above-described embodiment. According to this modification, the length of the valve spring 13 can be increased by the depth of the support recess 24, and the spring constant can be set lower. FIG. 4 shows another modification of the present invention.
A recess formed by caulking the inner surface of the mounting hole 22 and the peripheral wall 14a,
The configuration is the same as that of the above-described embodiment except that the convex portions 25 and 26 are formed in an annular shape. According to this embodiment, the fixing strength of the adjusting plug 14 by caulking can be further increased. The present invention is not limited to the above embodiments and modified examples, and various design changes can be made without departing from the gist thereof. For example, the concave and convex portions 25 and 26 formed by caulking may be formed in a conical shape or a pyramid shape instead of the hemispherical shape in FIG. 2, and the number of the formed shapes may be one or more. As described above, according to the present invention, when the adjusting plug formed in a thin cylindrical shape with a bottom is press-fitted into the mounting hole of the valve body, the depth of the press-fitting is adjusted. The set load of the spring can be adjusted. The adjustment plug prevents unnecessary axial displacement of the adjustment plug by the press-fitting.
The valve spring is fixed so that the set load of the valve spring is not disturbed.
【図面の簡単な説明】
【図１】本発明の実施例に係るソレノイドバルブの縦断
面図
【図２】図１の要部の拡大断面図
【図３】図１の要部の変形例を示す拡大断面図
【図４】図１の要部の別の変形例を示す拡大断面図
【符号の説明】
Ｓ ソレノイド部
Ｖ バルブ部
１ ソレノイド弁
１０ バルブ本体
１１ 弁孔
１２ スプール弁
１３ 弁ばね
１４ 調節栓
２２ 取付孔BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal sectional view of a solenoid valve according to an embodiment of the present invention. FIG. 2 is an enlarged sectional view of a main part of FIG. 1. FIG. FIG. 4 is an enlarged sectional view showing another modified example of the main part of FIG. 1. [Description of References] S Solenoid part V Valve part 1 Solenoid valve 10 Valve body 11 Valve hole 12 Spool valve 13 Valve spring 14 Adjustment stopper 22 Mounting hole
Claims (1)
ルブ本体（１０）の弁孔（１１）に、ソレノイド部
（Ｓ）に発生する電磁推力により一方向へ押圧されるス
プール弁（１２）を嵌装し、バルブ本体（１０）の他端
に形成した取付孔（２２）に固定される調節栓（１４）
とスプール弁（１２）との間に、該弁（１２）を前記電
磁推力と反対方向へ付勢する弁ばね（１３）を縮設した
ソレノイド弁において、 有底薄肉円筒状に形成した調節栓（１４）をバルブ本体
（１０）の取付孔（２２）に圧入して、その圧入深さに
より弁ばね（１３）のセット荷重を調節し、前記圧入に
より調節栓（１４）を取付孔（２２）に、該調節栓（１
４）の無用の軸方向変位を防ぐように固定したことを特
徴とする、ソレノイド弁。(57) [Claim 1] A unidirectional valve is provided in a valve hole (11) of a valve body (10) having a solenoid portion (S) at one end by electromagnetic thrust generated in the solenoid portion (S). Adjusting valve (14) fitted with a spool valve (12) pressed to the other end and fixed to a mounting hole (22) formed at the other end of the valve body (10).
A solenoid valve having a valve spring (13) for urging the valve (12) in a direction opposite to the electromagnetic thrust between the spool valve and the spool valve (12); (14) is press-fitted into the mounting hole (22) of the valve body (10), the set load of the valve spring (13) is adjusted by the press-fitting depth, and the adjusting plug (14) is fitted by the press-fitting. ) , The control plug (1)
4) A solenoid valve which is fixed so as to prevent unnecessary axial displacement .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000299442A JP3488862B2 (en) | 2000-09-29 | 2000-09-29 | Solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000299442A JP3488862B2 (en) | 2000-09-29 | 2000-09-29 | Solenoid valve |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10725595A Division JP3160747B2 (en) | 1995-05-01 | 1995-05-01 | Solenoid valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001124231A JP2001124231A (en) | 2001-05-11 |
| JP3488862B2 true JP3488862B2 (en) | 2004-01-19 |
Family
ID=18781248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000299442A Expired - Lifetime JP3488862B2 (en) | 2000-09-29 | 2000-09-29 | Solenoid valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3488862B2 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003139261A (en) | 2001-08-23 | 2003-05-14 | Denso Corp | Solenoid valve device and method of manufacturing the same |
| BRPI0616229B1 (en) * | 2005-09-20 | 2019-03-19 | Mitsuba Corporation | FUEL POWER DEVICE |
| US8499795B2 (en) * | 2009-11-24 | 2013-08-06 | Keihin Corporation | Solenoid valve device |
| JP5617753B2 (en) * | 2011-04-14 | 2014-11-05 | 株式会社デンソー | Spring load adjustment device |
| JP2012225429A (en) * | 2011-04-20 | 2012-11-15 | Denso Corp | Solenoid valve |
| JP5720643B2 (en) * | 2012-08-24 | 2015-05-20 | 株式会社デンソー | Solenoid valve |
| JP7305598B2 (en) | 2020-04-02 | 2023-07-10 | 愛三工業株式会社 | flow control valve |
| DE112021000729T5 (en) * | 2020-04-02 | 2022-11-10 | Aisan Kogyo Kabushiki Kaisha | FLOW CONTROL VALVE |
-
2000
- 2000-09-29 JP JP2000299442A patent/JP3488862B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2001124231A (en) | 2001-05-11 |
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