JPH06288211A - Eelectromagnetic drive valve - Google Patents
Eelectromagnetic drive valveInfo
- Publication number
- JPH06288211A JPH06288211A JP5096771A JP9677193A JPH06288211A JP H06288211 A JPH06288211 A JP H06288211A JP 5096771 A JP5096771 A JP 5096771A JP 9677193 A JP9677193 A JP 9677193A JP H06288211 A JPH06288211 A JP H06288211A
- Authority
- JP
- Japan
- Prior art keywords
- permanent magnet
- valve
- plunger
- force
- coil
- 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
- Valve Device For Special Equipments (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】内燃機関のシリンダの吸排気口に
配置され、電磁力により開閉す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 arranged at an intake / exhaust port of a cylinder of an internal combustion engine and opened / closed by an electromagnetic force.
【０００２】[0002]
【従来の技術】シリンダの吸排気口に配置される吸排気
バルブは、通常クランク軸の回転に基づくタイミングベ
ルトなどを介し機械的に駆動されて吸排気口の開閉を行
っているが、その開閉の自由度が小さいため電磁力を利
用して自由度を大きくした電磁バルブが開発されてい
る。2. Description of the Related Art An intake / exhaust valve arranged at an intake / exhaust port of a cylinder is normally mechanically driven via a timing belt based on rotation of a crankshaft to open / close the intake / exhaust port. Since the degree of freedom is small, an electromagnetic valve that uses electromagnetic force to increase the degree of freedom has been developed.
【０００３】この種の電磁バルブには平板型電磁石を用
いたものが考案されており、例えば特開平２−１２３２
１０号公報には永久磁石により閉方向に常時バイアスさ
れた吸排気バルブを電磁力により開方向に駆動するバル
ブ制御装置として平板型電磁石を使用した電磁バルブが
示されている。As this type of electromagnetic valve, one using a flat plate type electromagnet has been devised, for example, Japanese Patent Laid-Open No. 2-1232.
No. 10 discloses an electromagnetic valve that uses a flat electromagnet as a valve control device that drives an intake / exhaust valve that is always biased in a closing direction by a permanent magnet in an opening direction by an electromagnetic force.
【０００４】[0004]
【発明が解決しようとする課題】上述の平板型電磁石を
使用の電磁バルブはその構造上、吸引するストロークが
大になると、空隙における磁束密度が十分に確保でき
ず、このため大きな吸引力が得られないという問題があ
り、また、吸引力を生ずる電気エネルギーは消費され
て、回収できないという不都合もある。Due to the structure of the electromagnetic valve using the above-mentioned flat plate electromagnet, the magnetic flux density in the air gap cannot be sufficiently secured due to its structure, so that a large attractive force can be obtained. There is also a problem that the electric energy that causes the suction force is consumed and cannot be recovered.
【０００５】本発明はこのような問題に鑑みてなされた
ものであり、その目的は大きなストロークでも十分な吸
引力が得られるとともに、エネルギー回収の行える電磁
駆動バルブを提供しようとするものである。The present invention has been made in view of the above problems, and an object thereof is to provide an electromagnetically driven valve that can obtain a sufficient suction force even with a large stroke and can recover energy.
【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、吸排気バルブのステムに取付けた
磁性体のプランジャを電磁石の吸引力にて駆動して開弁
し、スプリングの弾性力により閉弁する電磁駆動バルブ
において、前記のステムに取付けられ開弁時に電磁石の
吸引力を付勢する方向に着磁された永久磁石と、該永久
磁石からの磁束に鎖交して永久磁石の移動に応じて起電
力を生ずる回収コイルとを備えた電磁駆動バルブが提供
される。To achieve the above object, according to the present invention, a plunger made of a magnetic material attached to a stem of an intake / exhaust valve is driven by an attractive force of an electromagnet to open the valve, and a spring is opened. In an electromagnetically driven valve that is closed by the elastic force of, the permanent magnet that is attached to the stem and is magnetized in the direction that urges the attraction force of the electromagnet when the valve is opened, and the magnetic flux from the permanent magnet Provided is an electromagnetically driven valve including a recovery coil that generates an electromotive force in response to movement of a permanent magnet.
【０００７】[0007]
【作用】ステムに設けたプランジャの上方に永久磁石を
取付け、該永久磁石の磁極を開弁時の電磁石の吸引力を
付勢する方向に着磁するとともに、永久磁石の磁束に鎖
交する回収コイルを固定側に設けたので、電磁石の励磁
コイルに通電して電磁バルブの開弁時には該電磁石の吸
引力に永久磁石の磁気力が加わって力強い駆動力が得ら
れ、また永久磁石の移動により回収コイルに起電力が生
じて電力回生が行われる。Operation: A permanent magnet is attached above the plunger provided on the stem, and the magnetic pole of the permanent magnet is magnetized in the direction of energizing the attraction force of the electromagnet when the valve is opened, and the recovery is linked to the magnetic flux of the permanent magnet. Since the coil is installed on the fixed side, when the exciting coil of the electromagnet is energized and the electromagnetic valve is opened, the magnetic force of the permanent magnet is added to the attractive force of the electromagnet to obtain a strong driving force. An electromotive force is generated in the recovery coil and power is regenerated.
【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。図１は本発明にかかる電磁駆動バルブ
の一実施例を示す縦断面図であり、図２は本実施例にお
ける開弁位置の電磁機構を示す断面図である。Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a vertical sectional view showing an embodiment of an electromagnetically driven valve according to the present invention, and FIG. 2 is a sectional view showing an electromagnetic mechanism at a valve opening position in the present embodiment.
【０００９】これらの図面において、１は電磁バルブで
あり、そのステム１１はバルブガイド１２により軸承さ
れ、閉弁時にはバルブシート１３に弁部１４が着座して
流路を閉鎖する。In these drawings, reference numeral 1 denotes an electromagnetic valve, the stem 11 of which is supported by a valve guide 12, and when the valve is closed, a valve portion 14 is seated on a valve seat 13 to close the flow path.
【００１０】２はスプリングで、ステム１１の所定位置
に取付けられたアッパーシート２１とシリンダ上壁１５
との間に配置され、弾性力によって電磁バルブ１を常に
上方位置、すなわち閉弁位置にバイアスするものであ
る。Reference numeral 2 denotes a spring, which is an upper seat 21 attached to a predetermined position of the stem 11 and a cylinder upper wall 15.
It is arranged between and, and always biases the electromagnetic valve 1 to the upper position, that is, the valve closing position by the elastic force.
【００１１】３は強磁性体からなるプランジャでステム
１１の上方に取付けられ、後述する電磁駆動部４に吸引
されて電磁バルブ１を開弁するもので、該プランジャ３
の上部にはリング状の永久磁石３１が設けられ、その着
磁は例えば図示のように上方がＮ極、下方がＳ極に磁化
されている。Reference numeral 3 denotes a plunger made of a ferromagnetic material, which is attached above the stem 11 and is attracted by an electromagnetic drive unit 4 which will be described later to open the electromagnetic valve 1.
A ring-shaped permanent magnet 31 is provided on the upper part of the magnet, and its magnetization is magnetized, for example, as shown in the figure, the upper N pole and the lower S pole.
【００１２】電磁駆動部４は外鉄型のコア４１と該コア
４１を励磁するリング状の励磁コイル４２、およびコア
４１の上方に配置した環状の回収コイル４３を備え、シ
リンダ上壁１５の上方の所定位置に取付けられている。
そして励磁コイル４２への通電による電磁力により永久
磁石３１を備えたプランジャ３を下方に吸引するととも
に、該吸引時やスプリング２の弾性力により移動する永
久磁石３１の磁束によって回収コイル４３には起電力が
生ずるように構成されている。The electromagnetic drive unit 4 is provided with an outer iron type core 41, a ring-shaped exciting coil 42 for exciting the core 41, and an annular recovery coil 43 arranged above the core 41, and above the cylinder upper wall 15. It is installed at a predetermined position of.
Then, the plunger 3 having the permanent magnet 31 is attracted downward by the electromagnetic force generated by the energization of the exciting coil 42, and the magnetic flux of the permanent magnet 31 that moves during the attraction or the elastic force of the spring 2 causes the recovery coil 43 to wake up. It is configured to generate power.
【００１３】なお、５は整流回路で、例えばダイオード
やコンデンサなどを備えて回収コイル４３の起電力を直
流に変換するものであり、該整流回路５からの出力は例
えば補機類やバッテリなどに導かれるように結線されて
いる。Reference numeral 5 denotes a rectifying circuit, which is provided with, for example, a diode or a capacitor to convert the electromotive force of the recovery coil 43 into a direct current. It is wired so as to be guided.
【００１４】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。電磁バルブ１の開弁に際して励磁コイル
４１に図１に示す方向の電流を通ずると、その電磁力に
より強磁性体のプランジャ３の吸引力を生ずるととも
に、コア４１の上方の磁極部はＮ極に磁化されて永久磁
石３１の下方のＳ極を力強く吸引して両者の推力により
ステム１１を下方に移動してストロークが多少長くても
電磁バルブ１を開弁させる。このとき永久磁石３１から
の磁束は回収コイル４３を鎖交しながら移動するため、
回収コイル４３には起電力が生じて整流回路５に流入す
ることになる。Next, the operation of the present embodiment thus constructed will be described. When a current in the direction shown in FIG. 1 is passed through the exciting coil 41 when the electromagnetic valve 1 is opened, the electromagnetic force causes an attractive force of the plunger 3 of the ferromagnetic body, and the magnetic pole portion above the core 41 becomes the N pole. When magnetized, the south pole below the permanent magnet 31 is strongly attracted, and the thrust of both moves the stem 11 downward to open the electromagnetic valve 1 even if the stroke is somewhat long. At this time, since the magnetic flux from the permanent magnet 31 moves while interlinking the recovery coil 43,
An electromotive force is generated in the recovery coil 43 and flows into the rectifier circuit 5.
【００１５】ついで、電磁バルブ１の閉弁時に励磁コイ
ル４２への通電を断つと、下方に吸引されていたプラン
ジャ３はスプリング２の弾性力により上方に駆動されて
電磁バルブ１は閉弁となるが、図２に示す位置の永久磁
石３１は上方に戻るため、回収コイル４３には永久磁石
３１の磁束が鎖交して起電力が生じ、整流回路５に流入
して回収されることになる。When the electromagnetic coil 1 is closed, the exciting coil 42 is de-energized, and the plunger 3 attracted downward is driven upward by the elastic force of the spring 2 to close the electromagnetic valve 1. However, since the permanent magnet 31 at the position shown in FIG. 2 returns upward, the magnetic flux of the permanent magnet 31 is linked to the recovery coil 43 to generate electromotive force, which flows into the rectifier circuit 5 and is recovered. .
【００１６】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-described embodiments, various modifications can be made within the scope of the gist of the present invention, and these modifications are not excluded from the scope of the present invention.
【００１７】[0017]
【発明の効果】上述の実施例のように本発明によれば、
ステムに取付けたプランジャの上方に永久磁石を取付
け、その磁極の極性を吸引時のコアのそれと逆極性とし
て互いに引合うように着磁するとともに、該永久磁石の
磁束に鎖交する位置に回収コイルを配置したので、電磁
バルブの開弁時には電磁石の吸引力と、永久磁石の推力
とがともに働いてバルブストロークが多少長くても力強
く駆動するとともに、開、閉弁時の永久磁石の移動によ
り回収コイルに起電力が生じて電力回生が行われるとい
う効果が得られる。According to the present invention as in the above embodiments,
A permanent magnet is attached above the plunger attached to the stem, and the polarity of the magnetic pole is magnetized so as to attract each other with the polarity opposite to that of the core at the time of attraction, and the recovery coil is located at the position interlinking with the magnetic flux of the permanent magnet. Since the electromagnetic valve is installed, the attraction force of the electromagnet and the thrust force of the permanent magnet work together when the electromagnetic valve is opened to drive strongly even if the valve stroke is a little longer, and the permanent magnet is moved to open and close the valve for recovery. The effect that electromotive force is generated in the coil and power is regenerated is obtained.
【図１】本発明にかかる電磁駆動バルブの一実施例を示
す縦断面図である。FIG. 1 is a vertical sectional view showing an embodiment of an electromagnetically driven valve according to the present invention.
【図２】本実施例におけるバルブ吸引時の電磁機構を示
す断面図である。FIG. 2 is a cross-sectional view showing an electromagnetic mechanism at the time of valve suction in the present embodiment.
１…電磁バルブ ２…スプリング ３…プランジャ ４…電磁駆動部 １１…ステム ３１…永久磁石 ４１…コア ４２…励磁コイル ４３…回収コイル 1 ... Electromagnetic valve 2 ... Spring 3 ... Plunger 4 ... Electromagnetic drive unit 11 ... Stem 31 ... Permanent magnet 41 ... Core 42 ... Excitation coil 43 ... Recovery coil
Claims (1)
プランジャを電磁石の吸引力にて駆動して開弁し、スプ
リングの弾性力により閉弁する電磁駆動バルブにおい
て、前記のステムに取付けられ開弁時に電磁石の吸引力
を付勢する方向に着磁された永久磁石と、該永久磁石か
らの磁束に鎖交して永久磁石の移動に応じて起電力を生
ずる回収コイルとを備えたことを特徴とする電磁駆動バ
ルブ。1. An electromagnetically driven valve in which a magnetic plunger mounted on the stem of an intake / exhaust valve is driven by the attraction force of an electromagnet to open the valve and closed by the elastic force of a spring. A permanent magnet magnetized in a direction in which the attraction force of the electromagnet is biased when the valve is opened, and a recovery coil that interlinks with the magnetic flux from the permanent magnet and generates an electromotive force according to the movement of the permanent magnet. Electromagnetically driven valve characterized by.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5096771A JPH06288211A (en) | 1993-03-31 | 1993-03-31 | Eelectromagnetic drive valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5096771A JPH06288211A (en) | 1993-03-31 | 1993-03-31 | Eelectromagnetic drive valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06288211A true JPH06288211A (en) | 1994-10-11 |
Family
ID=14173903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5096771A Pending JPH06288211A (en) | 1993-03-31 | 1993-03-31 | Eelectromagnetic drive valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06288211A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5884591A (en) * | 1997-05-30 | 1999-03-23 | Ina Walzlager Schaeffler Ohg | Drive mechanism for periodically moving at least one valve |
| EP1078750A2 (en) | 1999-08-24 | 2001-02-28 | Canon Kabushiki Kaisha | Printing apparatus, control method of the apparatus, and computer-readable memory |
| JP6035441B1 (en) * | 2015-09-15 | 2016-11-30 | 幸徳 川本 | Internal combustion engine |
-
1993
- 1993-03-31 JP JP5096771A patent/JPH06288211A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5884591A (en) * | 1997-05-30 | 1999-03-23 | Ina Walzlager Schaeffler Ohg | Drive mechanism for periodically moving at least one valve |
| EP1078750A2 (en) | 1999-08-24 | 2001-02-28 | Canon Kabushiki Kaisha | Printing apparatus, control method of the apparatus, and computer-readable memory |
| JP6035441B1 (en) * | 2015-09-15 | 2016-11-30 | 幸徳 川本 | Internal combustion engine |
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