JPS61171977A - Multipolar solenoid valve - Google Patents
Multipolar solenoid valveInfo
- Publication number
- JPS61171977A JPS61171977A JP1240385A JP1240385A JPS61171977A JP S61171977 A JPS61171977 A JP S61171977A JP 1240385 A JP1240385 A JP 1240385A JP 1240385 A JP1240385 A JP 1240385A JP S61171977 A JPS61171977 A JP S61171977A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- iron core
- armature
- tooth
- alternately
- 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
Links
Landscapes
- Magnetically Actuated Valves (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は、内燃機関用の燃料噴射装置の多極電磁弁に関
するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a multipole solenoid valve for a fuel injection device for an internal combustion engine.
燃料噴射装置の電磁弁としては、例えば、特開昭58−
133468号公報に示されるような、平面接極子型電
磁石を用い平面接極子にスプール弁が固定結合されたも
のがある。スプール弁を用いることにより弁動作への流
体圧力影響を小さくできるが、弁ストロークはポペット
弁などに比べて大きくなる。このため、弁応答時間を短
くする必要から吸引力を大きくしようとすると、接極子
径を大きくして吸引部面積を増すことになシ、接極子重
量が大幅に増加し慣性力が大きくなると云う問題がある
。尚、この種の電磁弁に関連するものとして、例えば、
5AE810462 Co1enoidaucluat
ors −Further l)evelopment
inExtremely Fast acting 5
olenoidsが知られている。As a solenoid valve for a fuel injection device, for example, JP-A-58-
As shown in Japanese Patent No. 133468, there is a device in which a flat surface pole electromagnet is used and a spool valve is fixedly connected to the flat surface pole. Although the influence of fluid pressure on valve operation can be reduced by using a spool valve, the valve stroke is larger than that of a poppet valve or the like. Therefore, if you try to increase the suction force to shorten the valve response time, you will have to increase the armature diameter to increase the suction area, which will significantly increase the armature weight and increase the inertia force. There's a problem. In addition, as related to this type of solenoid valve, for example,
5AE810462 Co1enoidaucluat
ors-Further l)development
inExtremely Fast acting 5
olenoids are known.
本発明は上記の状況に鑑みなされたものであり、接極子
電量の増大を少なくシ、吸引力を大きくし、弁の動作特
性を向上できる多極電磁弁を提供することを目的とした
ものである。The present invention was made in view of the above-mentioned situation, and an object of the present invention is to provide a multi-pole solenoid valve that can reduce the increase in armature current, increase the attractive force, and improve the operating characteristics of the valve. be.
本発明の多極ta弁は、強磁性材料からなる鉄心に導電
コイルが巻回され該導電コイルが励磁されることにより
接極子が吸引され該接極子に固定された弁体を開閉する
ように構成されてな夛、櫛形状の板の平面部に複数個の
溝部及び歯形部が交互に形成された上記鉄心と、それぞ
れの上記歯形部端面が交互に異磁極を形成するように上
記溝部に巻回された上記導電コイルと、平板状に形成さ
れ上記鉄心の平板状中心部を貫通する軸に対し同軸方向
に移動自在に配設され上記歯形部端面に対し所定の空隙
を設けて取シ付けられた上記接極子とを設けたものであ
る。In the multi-polar TA valve of the present invention, a conductive coil is wound around an iron core made of a ferromagnetic material, and when the conductive coil is excited, an armature is attracted and a valve body fixed to the armature is opened and closed. The iron core is configured such that a plurality of grooves and toothed portions are alternately formed on a flat surface of a comb-shaped plate, and the grooves are arranged such that the end faces of each of the toothed portions alternately form different magnetic poles. The wound conductive coil is arranged to be movable coaxially with respect to an axis that is formed into a flat plate and passes through the flat central part of the iron core, and is mounted with a predetermined gap provided to the end face of the toothed part. The above-mentioned armature is provided.
以下本発明の多極電磁弁を実施例を用い第1図により説
明する。第1図は開弁状態の縦断面図である。図におい
て、1は弁ケーシングで、升ケーシング1内には案内部
材2が取り付けられ案内部材2は開弁用鉄心3を弁ケー
シングlに押し付けて固定している。開弁用鉄心3は、
櫛形状の円板で平面部に(I数個の溝部4及び歯形部5
が形成されている。溝部4には導電コイル6が装着され
て歯形部5の端面に、N億あるいはS極の@極が発生す
るように形成されている。この磁極は、各歯形部5毎で
交互に異なるように、導電コイル6の巻方向が七nそれ
交互に異なシ巻回されている。DESCRIPTION OF THE PREFERRED EMBODIMENTS The multi-pole solenoid valve of the present invention will be explained below using an embodiment with reference to FIG. FIG. 1 is a longitudinal sectional view of the valve in the open state. In the figure, reference numeral 1 denotes a valve casing, and a guide member 2 is attached within the square casing 1, and the guide member 2 presses and fixes the valve opening core 3 against the valve casing l. The valve opening iron core 3 is
A comb-shaped disc is provided on the flat surface (I several grooves 4 and toothed portions 5).
is formed. A conductive coil 6 is attached to the groove portion 4 and formed on the end face of the toothed portion 5 so that a @ pole of N or S pole is generated. In this magnetic pole, the conductive coil 6 is wound in seven different winding directions so that the winding direction is alternately different for each toothed portion 5.
7は接極子で、開弁用鉄心3に対して同軸的に配−され
ておシ、一方の端面が歯形部5の端面と空mt−形成し
対向し弁ケージング1内に設けられている。接触子7を
挾んで池の一方の端面側には、開弁用鉄心3と同じよう
な形状の閉弁用鉄心8が弁ケージング1内に固定されて
いる。閉弁用鉄心 !8の溝部4には開弁用鉄
心3と同様に導電コイル6が巻方向がそれぞれ交互に異
なるように巻回されている。Reference numeral 7 denotes an armature, which is disposed coaxially with respect to the valve-opening iron core 3, and is provided in the valve casing 1 with one end face forming a space mt-to the end face of the toothed portion 5 and opposing it. . A valve-closing core 8 having the same shape as the valve-opening core 3 is fixed in the valve casing 1 on one end surface side of the pond with the contactor 7 in between. Valve closing iron core! Similarly to the valve opening core 3, conductive coils 6 are wound in the grooves 4 of 8 so that the winding directions are alternately different from each other.
開弁用鉄心3の歯形部5は閉弁用鉄心8の溝部4と対向
し、閉弁用鉄心8の歯形部5は開弁用鉄心3の溝部4と
対向するように配置され、導電コイル6に励磁電流が供
給されない側の鉄心に磁束が流れないようにしている。The toothed portion 5 of the valve-opening core 3 is arranged to face the groove 4 of the valve-closing core 8, and the toothed portion 5 of the valve-closing core 8 is arranged to face the groove 4 of the valve-opening core 3. 6, magnetic flux is prevented from flowing to the iron core on the side to which no excitation current is supplied.
接極子7にはスプール弁9が同軸的に結合され、スプー
ル弁9には中心孔10を有しており、スプール弁9は弁
ケーシング1に取シ付けられた弁本体11に形成された
内孔12に摺動可能に嵌合されている。中心孔10は、
一方では本体13に形成された低圧室14に連通され、
他方ではスプール弁9の外周に設けられた制御線15に
通じている。本体13に設けられた逃し通路16は弁本
体11の内孔まで伸びている。案内部材2とスプール弁
9の開弁用鉄心3側端面との間には閉弁保持ばね17が
収納されてスプール弁9を弁本体ll側に押し付け、逃
し通路16と制御線15とが合致しないように保持して
いる。逃し通路16と制御線15とが合致すると逃し通
路16の燃料が中心孔10を経て低圧室14に流出する
ことができるようになっている。A spool valve 9 is coaxially connected to the armature 7 , and the spool valve 9 has a center hole 10 . It is slidably fitted into the hole 12. The center hole 10 is
On the one hand, it communicates with a low pressure chamber 14 formed in the main body 13,
On the other hand, it leads to a control line 15 provided on the outer periphery of the spool valve 9. A relief passage 16 provided in the main body 13 extends to the inner hole of the valve main body 11. A valve-closing holding spring 17 is housed between the guide member 2 and the end face of the spool valve 9 on the side of the valve-opening iron core 3, and presses the spool valve 9 toward the valve body 11 side, so that the relief passage 16 and the control line 15 match. Don't hold back. When the relief passage 16 and the control line 15 match, the fuel in the relief passage 16 can flow out into the low pressure chamber 14 through the center hole 10.
上記の構成において次に動作を説明する。制御装置(図
示せず)から励磁電流が開弁用鉄心3の導電コイル6に
供給されると、磁束は第1図に点線で示したように流れ
、開弁用鉄心3の歯形部5の端面と対向した接極子7の
端面に電磁エネルギを減少させる方向である、即ち、近
接させるように軸方向に吸引力が働く。この吸引力によ
シ接触子7に固定されたスプール−7l’9の端部が、
閉弁保持ばね17の張力に抗して開弁用鉄心3側へ移動
し、スプール弁9の制御f115が逃し通路16と合致
して開弁状態になる。このため、燃料逃し通路16、中
心孔10を経て燃料が低圧室14へ流出する。Next, the operation of the above configuration will be explained. When an exciting current is supplied from a control device (not shown) to the conductive coil 6 of the valve opening core 3, magnetic flux flows as shown by the dotted line in FIG. An attractive force acts in the axial direction to reduce the electromagnetic energy on the end face of the armature 7 facing the end face, that is, to bring the end face closer to the end face. Due to this suction force, the end of the spool 7l'9 fixed to the contactor 7
It moves toward the valve-opening iron core 3 side against the tension of the valve-closing holding spring 17, and the control f115 of the spool valve 9 coincides with the relief passage 16, so that the valve is in the open state. Therefore, fuel flows out into the low pressure chamber 14 via the fuel relief passage 16 and the center hole 10.
次に、開弁用鉄心3の導電コイル6への励磁電流の供給
が止められ、閉弁用鉄心8の導電コイル6に励磁電流が
供給されると、磁束は第3図に点線で示したように流れ
、閉弁用鉄心8の歯形部5の端面と接触子7の端面との
間に軸方向の吸引力が働く。この吸引力によりスプール
弁9が弁本体11方向に移動し、逃し通路16と制御線
15とが合致しない閉弁状態となる。このため、燃料は
逃し通路16から流出しなくなる。次に閉弁用鉄心8の
導電コイル6への励磁電流の供給が止められると、閉弁
保持ばね17によって閉弁状態が保持される。Next, when the supply of exciting current to the conductive coil 6 of the valve-opening core 3 is stopped and the exciting current is supplied to the conductive coil 6 of the valve-closing core 8, the magnetic flux changes as shown by the dotted line in FIG. As a result, an axial suction force acts between the end surface of the toothed portion 5 of the valve-closing core 8 and the end surface of the contactor 7. This suction force causes the spool valve 9 to move toward the valve body 11, resulting in a closed state in which the relief passage 16 and the control line 15 do not match. Therefore, fuel no longer flows out from the relief passage 16. Next, when the supply of excitation current to the conductive coil 6 of the valve closing iron core 8 is stopped, the valve closing state is maintained by the valve closing retaining spring 17.
このように本実施例の多@電磁弁は、鉄心が櫛形状の板
の平面部に複数個の溝部及び歯形部を交互に形成して構
成され、それぞれの歯形部端面が交互に異磁極を形成す
るように溝部に導電コイルを巻き付け、接極子を平板状
に形成し鉄心の平板状中心部を貫通する軸に対し同軸方
向に移動自在に歯形部端面に対し所定の空隙を設けて配
設したので、鉄心の歯形部端面に各導電コイルによシ磁
束が重なシ合って複数個の磁極を発生させ、また、半径
方向に拡大された薄い円板状の接極子としたことによシ
接極子の重量増加分を抑制し吸引力を大きくできるっさ
らに接極子を挾んで両側に開。In this way, the multi-electromagnetic valve of this embodiment is constructed by forming a plurality of grooves and tooth sections alternately on the flat surface of a plate with a comb-shaped iron core, and the end surfaces of each tooth section alternately have different magnetic poles. A conductive coil is wound around the groove so that the armature is formed into a flat plate, and the armature is arranged with a predetermined gap between the end face of the toothed part so as to be movable coaxially with respect to the axis that passes through the flat central part of the iron core. Therefore, the magnetic flux from each conductive coil is overlapped on the end face of the tooth profile of the iron core to generate multiple magnetic poles, and the armature is made into a thin disc-shaped armature expanded in the radial direction. The increase in weight of the armature can be suppressed and the suction force can be increased.Furthermore, the armature can be held open on both sides.
閉弁用の鉄心を設は一方の鉄心の溝部を他方の鉄心の歯
形部を対向させたことにより、開、閉弁ともに速い応答
を得ることができる。The valve-closing iron core is arranged so that the groove portion of one iron core is opposed to the toothed portion of the other iron core, so that a quick response can be obtained for both opening and closing of the valve.
以上記述した如く本発明の多極′f71m弁は、接極子
重量の増大を少なくシ、吸引力を大きくし、弁の動作特
性が向上できる効果を有するものである。As described above, the multi-pole 'f71m valve of the present invention has the effect of reducing the increase in the weight of the armature, increasing the suction force, and improving the operating characteristics of the valve.
第1図は本発明の多4’を磁弁の実施例の升閉鎖時の断
面図、第2図は第1図の■−■矢視断面説明図、第3図
は開弁状態の第1図と同部分の断面図である。
3・・・開弁用鉄心、4・・・溝部、5・・・歯形部、
6・・・4第 l 幻
手続補正書(方式)
昭和60年 6月 2gFig. 1 is a cross-sectional view of an embodiment of the magnetic valve according to the present invention when the cell is closed, Fig. 2 is an explanatory cross-sectional view taken along arrows -■ in Fig. 1, and Fig. 3 is a cross-sectional view of the magnetic valve in the open state. FIG. 1 is a sectional view of the same portion as in FIG. 3... Valve opening iron core, 4... Groove portion, 5... Tooth profile portion,
6...4 No. l Phantom procedural amendment (method) June 1985 2g
Claims (2)
導電コイルが励磁されることにより接極子が吸引され該
接極子に固定された弁体を開閉するように構成されたも
のにおいて、櫛形状の板の平面部に複数個の溝部及び歯
形部が交互に形成された上記鉄心と、それぞれの上記歯
形部端面が交互に異磁極を形成するように上記溝部に巻
回された上記導電コイルと、平板状に形成され上記鉄心
の平板状中心部を貫通する軸に対し同軸方向に移動自在
に配設され上記歯形部端面に対し所定の空隙を設けて取
り付けられた上記接極子とを設けたことを特徴とする多
極電磁弁。1. A conductive coil is wound around an iron core made of a ferromagnetic material, and when the conductive coil is excited, an armature is attracted and a valve body fixed to the armature is opened and closed. The iron core has a plurality of grooves and teeth formed alternately on a flat surface of the plate, and the conductive coil is wound around the groove so that the end faces of the teeth alternately form different magnetic poles. and the armature, which is formed in a flat plate shape and is disposed so as to be movable coaxially with respect to an axis passing through the flat central part of the iron core, and is attached to the end face of the toothed part with a predetermined gap. A multi-pole solenoid valve featuring:
記鉄心が配設され、一方の上記鉄心のそれぞれの溝部に
他方の上記鉄心のそれぞれの歯形部が対向されている特
許請求の範囲第1項記載の多極電磁弁。2. Claims in which the valve-opening and valve-opening iron cores are disposed on both sides of the armature, and the grooves of one of the iron cores are opposed to the toothed portions of the other iron core. The multi-pole solenoid valve according to item 1.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1240385A JPS61171977A (en) | 1985-01-28 | 1985-01-28 | Multipolar solenoid valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1240385A JPS61171977A (en) | 1985-01-28 | 1985-01-28 | Multipolar solenoid valve |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS61171977A true JPS61171977A (en) | 1986-08-02 |
Family
ID=11804291
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1240385A Pending JPS61171977A (en) | 1985-01-28 | 1985-01-28 | Multipolar solenoid valve |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61171977A (en) |
-
1985
- 1985-01-28 JP JP1240385A patent/JPS61171977A/en active Pending
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