JPH05296013A - Solenoid driving valve - Google Patents
Solenoid driving valveInfo
- Publication number
- JPH05296013A JPH05296013A JP4128252A JP12825292A JPH05296013A JP H05296013 A JPH05296013 A JP H05296013A JP 4128252 A JP4128252 A JP 4128252A JP 12825292 A JP12825292 A JP 12825292A JP H05296013 A JPH05296013 A JP H05296013A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- coil
- movable coil
- magnet
- magnetic
- 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.)
- Granted
Links
Landscapes
- Valve Device For Special Equipments (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は内燃機関のシリンダの吸
排気口に配置され、電磁力により駆動される電磁駆動バ
ルブに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electromagnetically driven valve which is arranged at an intake / exhaust port of a cylinder of an internal combustion engine and is driven by electromagnetic force.
【０００２】[0002]
【従来の技術】従来からシリンダに配置された吸排気バ
ルブはクランク軸の回転に基づき駆動されるカムシャフ
トやロッカーアームなどにより機械的に開閉が行われる
が、その開閉はクランク軸の回転位相に従うので自由度
が小さいため、機械的な伝達を避けて自由度を大にした
電磁駆動バルブが種々開発されている。2. Description of the Related Art Conventionally, an intake / exhaust valve arranged in a cylinder is mechanically opened / closed by a camshaft, a rocker arm, etc. driven based on the rotation of a crankshaft, and the opening / closing follows the rotational phase of the crankshaft. Therefore, since the degree of freedom is small, various electromagnetic drive valves have been developed which have a large degree of freedom while avoiding mechanical transmission.
【０００３】そして、この種の電磁駆動バルブとして、
例えば本出願人による特開平３−１０５００６号公報に
示された提案があるが、バルブステムに複数個の磁極を
有する可動子を設けたため、可動部分の重量が増す不都
合があり、また可動子にコイルを用いダイナミックスピ
ーカのボイスコイルのようにセンタ磁心に遊嵌させ、該
コイルの推力により吸排気バルブを駆動させるボイスコ
イルモータ（ＶＣＭ）構造の電磁バルブなどが試みられ
ている。As an electromagnetically driven valve of this type,
For example, there is a proposal shown in Japanese Patent Application Laid-Open No. 3-105006 by the present applicant, but since the valve stem is provided with a mover having a plurality of magnetic poles, there is an inconvenience that the weight of the movable part increases, and the mover has a disadvantage. An electromagnetic valve having a voice coil motor (VCM) structure in which a coil is loosely fitted to a center magnetic core like a voice coil of a dynamic speaker and an intake / exhaust valve is driven by thrust of the coil has been attempted.
【０００４】[0004]
【発明が解決しようとする課題】上述のようなＶＣＭ構
造の電磁バルブは可動部分に磁極がないため重量の増大
は抑えられるが、界磁からの磁束がセンタ磁心を通って
戻る軸方向磁束形構造では、可動コイルの起磁力による
磁束の乱れ（アマチュアリアクション）、センタ磁心と
の間に働く吸引力、センタ磁心による磁路断面積の絞り
などによる不具合が生じている。また、大きな駆動力を
得るには可動コイルの通電エネルギを大にすればよい
が、大電流による銅損のための温度上昇や、導体断面積
の増大に伴う可動子の重量の増加などが懸念される。In the electromagnetic valve having the VCM structure as described above, since the moving part has no magnetic pole, the increase in weight is suppressed, but the magnetic flux from the field returns to the axial magnetic flux type through the center magnetic core. In the structure, problems such as disturbance of magnetic flux due to the magnetomotive force of the movable coil (amateur action), attraction force acting with the center magnetic core, and reduction of the magnetic path cross-sectional area by the center magnetic core occur. Further, in order to obtain a large driving force, it is sufficient to increase the energization energy of the moving coil, but there is concern that the temperature will rise due to copper loss due to a large current, and the weight of the mover will increase due to an increase in the conductor cross-sectional area. To be done.
【０００５】本発明はこのような種々の問題に鑑みてな
されたものであり、その目的は可動コイルを平板状に巻
回して、上下の界磁部による強力な磁界を有する上下の
空隙間に配置し、強い推力を発生させて連結した電磁バ
ルブを駆動しようとする電磁駆動バルブを提供すること
にある。The present invention has been made in view of these various problems, and an object thereof is to wind a movable coil in a flat plate shape and to provide a space between upper and lower air gaps having a strong magnetic field by upper and lower field magnet portions. An object of the present invention is to provide an electromagnetically driven valve that is arranged to generate a strong thrust to drive a connected electromagnetic valve.
【０００６】[0006]
【課題を解決するための手段】上述の目的を達成するた
めに本発明によれば、吸／排気バルブの上方に取付けら
れ四角な平板状に集中巻されて上下方向に移動して開閉
弁させる可動コイルと、該可動コイルの上下辺を形成す
る水平方向の巻線部分を介在させる上下の磁気回路の空
隙にそれぞれ磁界を生ぜしめる磁石および励磁巻線を備
えた上下の界磁部とを備え、該励磁巻線および前記可動
コイルへの通電により開閉駆動される電磁駆動バルブが
提供される。To achieve the above object, according to the present invention, the valve is mounted above an intake / exhaust valve, concentratedly wound in a rectangular flat plate shape, and vertically moved to open and close the valve. A movable coil and upper and lower field magnet portions each having a magnet and an excitation winding for generating a magnetic field in the air gaps of the upper and lower magnetic circuits interposing horizontal winding portions forming the upper and lower sides of the movable coil. Provided is an electromagnetically driven valve that is opened and closed by energizing the excitation winding and the movable coil.
【０００７】[0007]
【作用】吸排気バルブの上方の可動コイルを四角な平板
状に巻回した形状とし、磁石と励磁巻線により強力な磁
界が得られる上下の界磁部の空隙に、可動コイルの上下
辺となる水平方向の巻線部分を配置し空隙の磁束を直角
に鎖交させるので、可動コイルへの通電時には効率のよ
い電磁力が働いて力強く電磁バルブが駆動される。[Function] The moving coil above the intake / exhaust valve is wound into a rectangular flat plate shape, and the upper and lower sides of the moving coil are arranged in the gap between the upper and lower field parts where a strong magnetic field is obtained by the magnet and the excitation winding. By arranging the horizontal winding part, the magnetic flux in the air gap is linked at a right angle, so that an efficient electromagnetic force works to energize the electromagnetic valve when the moving coil is energized.
【０００８】[0008]
【実施例】つぎに本発明の実施例について図面を用いて
詳細に説明する。Embodiments of the present invention will now be described in detail with reference to the drawings.
【０００９】図１は本発明にかかる電磁駆動バルブの一
実施例を示す上面図および縦断面図である。FIG. 1 is a top view and a vertical sectional view showing an embodiment of an electromagnetically driven valve according to the present invention.
【００１０】同図において、１は電磁バルブで、そのス
テム１１はバルブガイド１２により上下に往復自在に軸
承され、閉弁時には吸／排気口に弁部１３が密接してそ
の流路を遮断する。In FIG. 1, reference numeral 1 denotes an electromagnetic valve, a stem 11 of which is vertically reciprocally supported by a valve guide 12, and a valve portion 13 is in close contact with an intake / exhaust port to close its flow path when the valve is closed. .
【００１１】そして、ステム１１の上方には固定具１４
を介し、スプリング１５の上部を支持するアッパーシー
ト１６が取付けられ、さらにその上方には後述する可動
コイルが接続される連結具１７が設けられている。なお
スプリング１５はその弾性力により電磁バルブ１を閉弁
方向に押上げるものである。A fixing member 14 is provided above the stem 11.
The upper seat 16 that supports the upper part of the spring 15 is attached via the above, and a coupling tool 17 to which a movable coil described later is connected is provided above the upper seat 16. The spring 15 pushes up the electromagnetic valve 1 in the valve closing direction by its elastic force.
【００１２】２は可動コイルで、図２に示すように四角
な平板状に集中巻され、上下辺となる水平方向の巻線の
有効長が大になされたもので連結具１７により電磁バル
ブ１の上方に連結されており、上辺２１と下辺２２との
水平方向の巻線部分に鎖交する磁束と、該コイルへの通
電による電磁力との推力により垂直方向に駆動されるも
のである。Reference numeral 2 denotes a movable coil, which is concentratedly wound in a rectangular flat plate shape as shown in FIG. 2 and has a large effective length of horizontal windings as upper and lower sides. Is coupled to the upper side of the coil, and is driven in the vertical direction by the thrust of the magnetic flux interlinking the horizontal winding portions of the upper side 21 and the lower side 22 and the electromagnetic force generated by energizing the coil.
【００１３】３は上界磁部で、可動コイル２の上辺２１
の巻線部分に磁束を鎖交させるもので、そのコアー部３
０は一対の内磁極３１、一対の磁石３２、一対の外磁極
３３およびヨーク３４とを備えて、一対の内磁極３１の
間に空隙３５を形成させたものであり、さらにヨーク３
４には一対の巻線３６が巻回され、駆動力を大にする場
合には該巻線３６に通電して空隙３５の磁束を強めるよ
うに構成されている。Reference numeral 3 denotes an upper magnetic field portion, which is an upper side 21 of the movable coil 2.
The magnetic flux is linked to the winding part of the core part 3
Reference numeral 0 denotes a pair of inner magnetic poles 31, a pair of magnets 32, a pair of outer magnetic poles 33, and a yoke 34, and a gap 35 is formed between the pair of inner magnetic poles 31.
A pair of windings 36 are wound around 4, and when the driving force is increased, the winding 36 is energized to strengthen the magnetic flux in the gap 35.
【００１４】４は下界磁部で、可動コイル２の下辺２２
の巻線部分に磁束を鎖交させるもので、そのコアー部４
０は内磁極４１、磁石４２、外磁極４３やヨーク４４が
用いられて前述とほぼ同様な構成となって空隙４５が形
成され、ヨーク４４に巻回した一対の巻線４６への通電
により空隙４５の磁束が強められるものであり、なお、
空隙３５と空隙４５との磁束の方向は互いに逆方向にさ
れて、可動コイル２の上辺２１と下辺２２との電流が互
いに逆方向となるように対応されている。Reference numeral 4 denotes a lower magnetic field portion, which is a lower side 22 of the movable coil 2.
The magnetic flux is linked to the winding part of the core part 4
0 is an air gap 45 formed by using the inner magnetic pole 41, the magnet 42, the outer magnetic pole 43, and the yoke 44, and has a structure similar to that described above. The air gap is generated by energizing the pair of windings 46 wound around the yoke 44. The magnetic flux of 45 is strengthened.
The directions of the magnetic flux of the air gap 35 and the air gap 45 are made opposite to each other, and the currents of the upper side 21 and the lower side 22 of the movable coil 2 are made to correspond to each other.
【００１５】また、上述の一対の内磁極３１や一対の内
磁極４１の垂直方向の寸法は可動コイル２の可動範囲よ
り十分に長くとられており、したがってこれら磁極が形
成する空隙３５および空隙４５の上下長は電磁バルブ１
のストロークより長くなり、可動コイル２への磁束も均
一となるものである。The vertical dimension of the pair of inner magnetic poles 31 and the pair of inner magnetic poles 41 is set sufficiently longer than the movable range of the movable coil 2. Therefore, the gaps 35 and 45 formed by these magnetic poles are formed. The vertical length of the solenoid valve 1
The stroke is longer than the stroke, and the magnetic flux to the movable coil 2 becomes uniform.
【００１６】つぎにこのように構成された本実施例の作
動を説明すると、開閉弁に際して上下の空隙３５と空隙
４５の磁束を強めるため、まず巻線３６と巻線４６とに
所定方向の電流を通ずるとともに、開弁時には可動コイ
ル２に対して図３に示す方向の電流を通電する。このた
め、可動コイル２の通電による電磁力が、その上方では
空隙３５の磁束との間にて弱め合い、また下方では空隙
４５の磁束との間で強め合うことにより、このため可動
コイル２の上辺２１と下辺２２とには下方向の推力が生
じて電磁バルブ１を開弁させることになる。Next, the operation of the present embodiment thus constructed will be explained. In order to strengthen the magnetic flux in the upper and lower air gaps 35 and 45 at the time of opening and closing the valve, first, the current in the predetermined direction is applied to the windings 36 and 46. While passing through the valve, a current in the direction shown in FIG. 3 is applied to the movable coil 2 when the valve is opened. Therefore, the electromagnetic force due to the energization of the movable coil 2 weakens the magnetic flux in the air gap 35 above it and strengthens it with the magnetic flux in the air gap 45 below it. A downward thrust is generated on the upper side 21 and the lower side 22 to open the electromagnetic valve 1.
【００１７】また、閉弁時には図４に示す方向の電流を
可動コイル２に通ずると、前述とは逆に通電による電磁
力が上方では空隙３５の磁束と強め合い、下方では空隙
４５の磁束と弱め合って上下辺による上方向の推力が生
じ、スプリング１５の弾性力も加わって電磁バルブ１を
閉弁させることになる。When a current in the direction shown in FIG. 4 is passed through the movable coil 2 when the valve is closed, contrary to the above, the electromagnetic force due to energization strengthens the magnetic flux in the air gap 35 in the upper part and the magnetic flux in the air gap 45 in the lower part. When they weaken each other, an upward thrust is generated by the upper and lower sides, and the elastic force of the spring 15 is also applied to close the electromagnetic valve 1.
【００１８】以上、本発明を上述の実施例によって説明
したが、本発明の主旨の範囲内で種々の変形が可能であ
り、これらの変形を本発明の範囲から排除するものでは
ない。Although the present invention has been described with reference to the above embodiments, various modifications are possible within the scope of the gist of the present invention, and these modifications are not excluded from the scope of the present invention.
【００１９】[0019]
【発明の効果】上述の実施例のように本発明によれば、
電磁バルブのステム上方に取付けた可動コイルを四角な
平板状に集中巻して上下の界磁部の空隙の磁束を直角方
向に鎖交させ、可動コイルへの通電によって上下辺の２
段の電磁力と上下の空隙の磁束とにより上／下方向の推
力を生じさせるので、可動コイルに連結された電磁バル
ブが力強く駆動されるという効果が得られる。According to the present invention as in the above embodiments,
The moving coil mounted above the stem of the electromagnetic valve is concentratedly wound into a rectangular flat plate shape so that the magnetic fluxes in the air gaps in the upper and lower field parts are linked in the right angle direction.
Since the upward / downward thrust is generated by the electromagnetic force of the step and the magnetic flux of the upper and lower air gaps, the electromagnetic valve connected to the movable coil is strongly driven.
【００２０】また本発明では上下の界磁部を磁石と巻線
とによって励磁するので、該巻線への通電を大にするこ
とにより駆動力の増大が行えるという利点がある。Further, in the present invention, since the upper and lower field parts are excited by the magnet and the winding, there is an advantage that the driving force can be increased by energizing the winding.
【図１】本発明にかかる電磁駆動バルブの一実施例を示
す上面図および縦断面図である。FIG. 1 is a top view and a vertical sectional view showing an embodiment of an electromagnetically driven valve according to the present invention.
【図２】本実施例の可動コイルを示す斜視図である。FIG. 2 is a perspective view showing a movable coil of this embodiment.
【図３】本実施例の開弁時の通電方向を示す説明図であ
る。FIG. 3 is an explanatory diagram showing the energization direction when the valve is opened in the present embodiment.
【図４】本実施例の閉弁時の通電方向を示す説明図であ
る。FIG. 4 is an explanatory diagram showing the energizing direction when the valve is closed in the present embodiment.
１…電磁バルブ ２…可動コイル ３…上界磁部 ４…下界磁部 ３２，４２…磁石 ３５，４５…空隙 ３６，４６…巻線 DESCRIPTION OF SYMBOLS 1 ... Electromagnetic valve 2 ... Moving coil 3 ... Upper field part 4 ... Lower field part 32,42 ... Magnet 35,45 ... Air gap 36,46 ... Winding
Claims (1)
平板状に集中巻されて上下方向に移動して開閉弁させる
可動コイルと、該可動コイルの上下辺を形成する水平方
向の巻線部分を介在させる上下の磁気回路の空隙にそれ
ぞれ磁界を生ぜしめる磁石および励磁巻線を備えた上下
の界磁部とを備え、該励磁巻線および前記可動コイルへ
の通電により開閉駆動されることを特徴とする電磁駆動
バルブ。1. A movable coil mounted above an intake / exhaust valve, concentratedly wound in the shape of a rectangular flat plate, and moved vertically to open / close the valve, and a horizontal winding forming upper and lower sides of the movable coil. A magnet for generating a magnetic field and upper and lower field parts having an excitation winding are provided in the air gaps of the upper and lower magnetic circuits interposing parts, and are opened and closed by energizing the excitation winding and the movable coil. Electromagnetically driven valve characterized by.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12825292A JP3291757B2 (en) | 1992-04-21 | 1992-04-21 | Electromagnetic drive valve for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12825292A JP3291757B2 (en) | 1992-04-21 | 1992-04-21 | Electromagnetic drive valve for internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05296013A true JPH05296013A (en) | 1993-11-09 |
| JP3291757B2 JP3291757B2 (en) | 2002-06-10 |
Family
ID=14980260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12825292A Expired - Fee Related JP3291757B2 (en) | 1992-04-21 | 1992-04-21 | Electromagnetic drive valve for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3291757B2 (en) |
-
1992
- 1992-04-21 JP JP12825292A patent/JP3291757B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP3291757B2 (en) | 2002-06-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3629362B2 (en) | Driving method of electromagnetic valve for driving engine valve | |
| US6763789B1 (en) | Electromagnetic actuator with permanent magnet | |
| JP3186462B2 (en) | Electromagnetic valve drive for internal combustion engine | |
| JP3573263B2 (en) | Electromagnetic actuator | |
| JP2007056777A (en) | Solenoid-operated valve | |
| JP3291757B2 (en) | Electromagnetic drive valve for internal combustion engine | |
| JP2003056741A (en) | Electromechanical valve train | |
| JP3547115B2 (en) | Electromagnetic drive valve | |
| JPH05195732A (en) | Solenoid valve | |
| JP3175265B2 (en) | Electromagnetic drive valve for intake and exhaust of engine | |
| JP3175241B2 (en) | Electromagnetic drive valve for intake and exhaust of engine | |
| JP3216223B2 (en) | Electromagnetically driven valves for internal combustion engines | |
| JP3175400B2 (en) | Electromagnetic drive valve | |
| JPH05332108A (en) | Solenoid valve | |
| JPH05321621A (en) | Solenoid drive valve | |
| JPH0526014A (en) | Electromagnetic driven valve for internal combustion engine | |
| JPH05202717A (en) | Electromagnetic driving valve | |
| JPH05195733A (en) | Solenoid valve | |
| JPH05332470A (en) | Solenoid valve | |
| JPH05202716A (en) | Solenoid valve | |
| JP2009019619A (en) | Solenoid driving valve device | |
| JPH05280316A (en) | Electromagnetic drive valve | |
| JP2002122264A (en) | Electromagnetically driven valve | |
| JPH05280314A (en) | Electromagnetic drive valve | |
| JP2830935B2 (en) | Polarized electromagnet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |