JPH0111930Y2 - - Google Patents
Info
- Publication number
- JPH0111930Y2 JPH0111930Y2 JP16497782U JP16497782U JPH0111930Y2 JP H0111930 Y2 JPH0111930 Y2 JP H0111930Y2 JP 16497782 U JP16497782 U JP 16497782U JP 16497782 U JP16497782 U JP 16497782U JP H0111930 Y2 JPH0111930 Y2 JP H0111930Y2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- permanent magnet
- valve body
- internal combustion
- combustion engine
- 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
Links
- 238000002485 combustion reaction Methods 0.000 claims description 25
- 239000000446 fuel Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000007847 structural defect Effects 0.000 description 1
Landscapes
- Valve Device For Special Equipments (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Description
【考案の詳細な説明】
技術分野
本考案は、内燃機関の混合気の吸入又は排気の
排出に好適な弁装置に関する。DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a valve device suitable for intake of air-fuel mixture or discharge of exhaust gas from an internal combustion engine.
背景技術
従来、内燃機関の弁装置は、シリンダの燃焼室
に通ずる連通孔に、混合気の吸入用又は燃焼の結
果生じた排気の排出用として、カム駆動による吸
気弁と排気弁を設けた構成であつた。かかるカム
駆動のものは、カムが内燃機関の出力軸の回転を
スプロケツトとチエーン又は歯車を介してカム軸
に伝達された動力で回転するものであり、このカ
ムの回転をプツシユロツドとロツカアームを介し
て弁体に伝達するのが一般的である。このように
カム駆動は、複雑な構成と多くの可動部を必要と
し、しかも各可動部がいずれも慣性質量をもち、
摩擦面を有するため、振動や騒音が発生しやす
く、機械的損失ゆえに動作の円滑性や加速性が劣
る等の欠点があつた。BACKGROUND ART Conventionally, a valve device for an internal combustion engine has a configuration in which a cam-driven intake valve and an exhaust valve are provided in a communication hole communicating with a combustion chamber of a cylinder for intake of an air-fuel mixture or discharge of exhaust gas generated as a result of combustion. It was hot. In such a cam drive, the cam rotates the output shaft of the internal combustion engine using power transmitted to the camshaft via a sprocket and chain or gears, and the rotation of the cam is transmitted via a push rod and a rocker arm. Generally, the signal is transmitted to the valve body. In this way, cam drive requires a complex configuration and many moving parts, and each moving part has an inertial mass.
Since it has a friction surface, it tends to generate vibration and noise, and has disadvantages such as poor smoothness and acceleration due to mechanical loss.
また、カム駆動の弁装置は、弁体の開閉タイミ
ングが固定されているため、設定された回転速度
より機関の回転が遅い場合は、排気が吸気に混じ
つてシリンダー内に吸い込まれ、実質上の圧縮比
が減少して出力が減少するばかりでなく、混合気
の吸き抜けによる燃料の無駄が生じて生ガスが排
出される。また逆に、機関の回転が速い場合は、
吸気の慣性を充分利用出来ないだけでなく排気ガ
スの排出をさまたげるので、充分な出力が得られ
なくなる構造上の欠点を有していた。 In addition, in a cam-driven valve device, the opening and closing timing of the valve body is fixed, so if the engine rotation is slower than the set rotation speed, the exhaust gas will be mixed with the intake air and sucked into the cylinder, causing the actual Not only does the compression ratio decrease and the output decrease, but also fuel is wasted due to the air-fuel mixture being sucked out and raw gas is discharged. Conversely, if the engine rotates quickly,
This has a structural defect that not only does it not make sufficient use of the inertia of the intake air, but also prevents exhaust gas from being discharged, making it impossible to obtain sufficient output.
考案の開示
本考案は、上記従来の弁装置の諸欠点に鑑みて
提案されたものであり、従来カムにより機械的に
駆動していた弁を、電磁駆動部により駆動するよ
うにして、機械的摩擦による騒音や振動の問題を
解消すると共に、回転速度や負荷に応じた最適の
タイミングで吸気・排気を制御できるようにした
弁装置を提供することを目的とする。DISCLOSURE OF THE INVENTION The present invention was proposed in view of the various drawbacks of the conventional valve devices mentioned above. The purpose of the present invention is to provide a valve device that eliminates the problems of noise and vibration caused by friction and that can control intake and exhaust at optimal timing according to rotational speed and load.
本考案に係る内燃機関用弁装置は、内燃機関の
シリンダ燃焼室の内外を連通する連通孔に設けら
れる弁体と、この弁体を電磁力により変位せしめ
る電磁駆動部とからなり、弁体に対する開閉タイ
ミング制御を電磁駆動部が支配的に行なうように
したことを特徴とするものである。そして上記弁
体を駆動する電磁駆動部は、複数の磁脚を有する
コアに弁体の開閉用のコイルを磁脚によつて独立
的に配設されて成る構成を有する。しかして、弁
軸に固定された永久磁石と電磁駆動部のコア間と
の磁力安定位置が、該弁体の開閉位置とほゞ対応
した上下２個所になるよう構成される。従つて、
弁体の開閉駆動がコイル通電の電磁駆動によつて
支配的になされると共に、上記永久磁石と電磁駆
動部のコア間の磁力によつて確実に開閉状態が保
持されるものである。 The valve device for an internal combustion engine according to the present invention includes a valve body provided in a communication hole that communicates the inside and outside of a cylinder combustion chamber of an internal combustion engine, and an electromagnetic drive section that displaces this valve body by electromagnetic force. This is characterized in that the opening/closing timing control is predominantly performed by the electromagnetic drive section. The electromagnetic drive unit that drives the valve body has a structure in which a coil for opening and closing the valve body is independently disposed in a core having a plurality of magnetic legs. Therefore, the magnetically stable positions between the permanent magnet fixed to the valve shaft and the core of the electromagnetic drive section are configured to be at two positions, upper and lower, which approximately correspond to the opening and closing positions of the valve body. Therefore,
The opening/closing drive of the valve body is predominantly performed by electromagnetic driving of the coil energization, and the open/closed state is reliably maintained by the magnetic force between the permanent magnet and the core of the electromagnetic drive unit.
このような本考案の内燃機関弁装置によれば、
従来のカム駆動の弁装置と異なり、振動や騒音が
少なく、また弁体の開閉タイミング制御が自在に
行なえ、上記従来のカム駆動に於ける諸欠点が改
善される。 According to such an internal combustion engine valve device of the present invention,
Unlike conventional cam-driven valve devices, there is less vibration and noise, and the opening/closing timing of the valve body can be freely controlled, thus improving the various drawbacks of the conventional cam-driven valve device.
考案を実施するための最良の形態
次に、本考案の実施例について、図面を参照し
て説明する。第１図は本考案の内燃機関用弁装置
を適用した内燃機関の一実施例を示す概略構成
図、第２図ＡないしＣは、夫々上記内燃機関用弁
装置の動作を説明するためのタイミングチヤート
図である。BEST MODE FOR CARRYING OUT THE INVENTION Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic configuration diagram showing an embodiment of an internal combustion engine to which the internal combustion engine valve device of the present invention is applied, and FIGS. 2 A to C show timing diagrams for explaining the operation of the internal combustion engine valve device, respectively. It is a chart diagram.
第１図中、内燃機関１は、シリンダ２の燃焼室
２ａ内で燃料と空気の混合気を燃焼させ、ピスト
ン３を動作させるものであり、自動車用エンジン
として用いられる。弁装置４を構成する吸気弁５
及び排気弁６は、従来のカム駆動とは異なり、電
磁駆動によつて開閉するようになつている。すな
わち、これらの吸気弁５或いは排気弁６は、車速
或いは走行負荷等に応じて開閉タイミングを変え
ることができるよう、中央処理装置７に接続され
た駆動回路１５，１６によつて夫々駆動される。 In FIG. 1, an internal combustion engine 1 burns a mixture of fuel and air in a combustion chamber 2a of a cylinder 2 to operate a piston 3, and is used as an automobile engine. Intake valve 5 constituting valve device 4
The exhaust valve 6 is opened and closed by electromagnetic drive, unlike the conventional cam drive. That is, these intake valves 5 and exhaust valves 6 are respectively driven by drive circuits 15 and 16 connected to the central processing unit 7 so that the opening and closing timing can be changed depending on the vehicle speed, running load, etc. .
中央処理装置７は、その入力端子７ａ，７ｂ，
７ｃに夫々クランク角度基準信号、クランク角度
信号及びバツテリ電圧や冷却水温度或いは大気圧
や吸気負圧といつた運転状態を示す信号が供給さ
れ、上述した弁装置４の開閉タイミングや点火回
路（図示せず）による点火時期の制御等を行な
う。 The central processing unit 7 has its input terminals 7a, 7b,
7c are supplied with a crank angle reference signal, a crank angle signal, and signals indicating operating conditions such as battery voltage, cooling water temperature, atmospheric pressure, and intake negative pressure. (not shown) to control ignition timing, etc.
ここで、弁装置４の構成を説明する上で、吸気
弁５も排気弁６も大略同一構成であるため、便宜
上同一部分には同一符号を付して説明する。 Here, in explaining the configuration of the valve device 4, since the intake valve 5 and the exhaust valve 6 have substantially the same configuration, the same parts will be described with the same reference numerals for convenience.
シリンダ２の燃焼室２ａを形成するシリンダヘ
ツド部分には、吸気用と排気用に夫々連通孔２
５，２６が形成されており、各連通孔２５，２６
の開口部に夫々弁座８が形成されている。弁体９
は、タペツト状であり、保持筒１０に保持された
弁軸１１の下端部に一体形成してある。弁軸１１
には、その中間部に最大開弁位置を決めるための
ストツパ１２が又、上端部に永久磁石１３が、
夫々固定してある。永久磁石１３は、断面Ｅ字状
のコア１４ａにコイル１４ｂを巻回した電磁駆動
部１４によつて囲まれた空間内にあり、コイル１
４ｂへの通電方向を変えて電磁駆動部１４の極性
を切り換えることにより、弁軸１１を軸線方向に
沿つて上下動させることができる。更に詳しく
は、永久磁石１３の長さは、図示するように、電
磁駆動部１４のコア１４ａの長さの約1/2程度に
形成されており、従つて永久磁石１３はＥ字状コ
ア１４ａの上端部と中央部、及び中央部と下端部
とに対応する上下２箇所で安定状態が得られるよ
うに構成されていて、弁体９はこれらの安定状態
位置で閉弁及び開弁状態に保持される。つまり、
この閉弁及び開弁状態に於いては、電磁駆動部１
４のコイル１４ｂに通電することなく、永久磁石
１３と電磁駆動部１４のコア１４ａ間の磁力で安
定して閉弁又は開弁状態が保持される。 The cylinder head part forming the combustion chamber 2a of the cylinder 2 has communication holes 2 for intake and exhaust, respectively.
5, 26 are formed, and each communication hole 25, 26
A valve seat 8 is formed in each opening. Valve body 9
has a tapepet shape and is integrally formed at the lower end of the valve shaft 11 held in the holding cylinder 10. Valve stem 11
A stopper 12 for determining the maximum valve opening position is located in the middle of the valve, and a permanent magnet 13 is located at the upper end of the valve.
Each is fixed. The permanent magnet 13 is located in a space surrounded by an electromagnetic drive section 14 that has a core 14a having an E-shaped cross section and a coil 14b wound around it.
By changing the direction of energization to 4b and switching the polarity of the electromagnetic drive unit 14, the valve shaft 11 can be moved up and down along the axial direction. More specifically, as shown in the figure, the length of the permanent magnet 13 is approximately 1/2 of the length of the core 14a of the electromagnetic drive unit 14. The valve body 9 is configured so that a stable state can be obtained at two locations, upper and lower, corresponding to the upper end and the center, and the center and the lower end, and the valve body 9 is in the closed and opened states at these stable state positions. Retained. In other words,
In this valve closed and opened state, the electromagnetic drive unit 1
The closed or open state of the valve is stably maintained by the magnetic force between the permanent magnet 13 and the core 14a of the electromagnetic drive unit 14 without energizing the coil 14b of No. 4.
そして、電磁駆動部１４のコイル１４ｂに所定
方向に通電することにより電磁駆動部１４の永久
磁石１３に作用する磁力方向を変えて位置変位さ
せ、永久磁石１３を他の安定状態に導くことによ
り弁体９の開閉切換えがなされる。 Then, by energizing the coil 14b of the electromagnetic drive unit 14 in a predetermined direction, the direction of the magnetic force acting on the permanent magnet 13 of the electromagnetic drive unit 14 is changed to displace the permanent magnet 13, and the permanent magnet 13 is guided to another stable state. The body 9 is switched between opening and closing.
次に弁装置４の閉弁状態及び開弁状態を、第１
図を用いて説明する。 Next, the closed state and open state of the valve device 4 are changed to the first state.
This will be explained using figures.
まず、第１図において、排気弁６は閉弁状態に
ある。この状態で永久磁石１３は、上述したよう
にコア１４ａの上端側の安定状態にあり、電磁駆
動部１４が通電されていなくても、永久磁石１３
は上方向の磁力を受ける位置で停止している。す
なわち、弁体９は、永久磁石１３の磁力によつて
弁座８に着座させられ、閉弁状態を保持してい
る。従つて、永久磁石１３の上動限界位置は、第
１図中一点鎖線で示した永久磁石１３と電磁駆動
部１４の上端がほぼ同じ高さとなる安定位置より
も、僅か下方に設定しておくとよい。 First, in FIG. 1, the exhaust valve 6 is in a closed state. In this state, the permanent magnet 13 is in a stable state on the upper end side of the core 14a as described above, and even if the electromagnetic drive unit 14 is not energized, the permanent magnet 13
is stopped at a position where it receives an upward magnetic force. That is, the valve body 9 is seated on the valve seat 8 by the magnetic force of the permanent magnet 13, and maintains the valve closed state. Therefore, the upper limit position of the permanent magnet 13 is set slightly below the stable position indicated by the dashed line in FIG. Good.
また、第１図において、吸気弁５は開弁状態に
あるが、この状態で、永久磁石１３はコア１４ａ
の下端側で安定状態にあり、仮に電磁駆動部１４
に通電されておらず、コア１４ａ自体が磁化され
ていなくても永久磁石１３は図中二点鎖線で示し
た安定位置よりも僅か上方で下動限界位置に達す
るようにしてある。すなわち、永久磁石１３は、
電磁駆動部１４によつて下方への磁力を受けた状
態で、ストツパ１２が保持筒１０に係止されて下
動停止する構成としてある。 Further, in FIG. 1, the intake valve 5 is in an open state, but in this state, the permanent magnet 13 is inserted into the core 14a.
is in a stable state at the lower end side of the electromagnetic drive unit 14.
Even if the core 14a is not energized and the core 14a itself is not magnetized, the permanent magnet 13 reaches its lower limit position slightly above the stable position indicated by the two-dot chain line in the figure. That is, the permanent magnet 13 is
The stopper 12 is engaged with the holding tube 10 and stops moving downward while receiving a downward magnetic force from the electromagnetic drive section 14.
次に、弁装置４の開閉動作につき、第２図Ａな
いしＣを併せ説明する。 Next, the opening/closing operation of the valve device 4 will be explained with reference to FIGS. 2A to 2C.
まず、閉弁状態にある排気弁６が開弁するとき
は、電磁駆動部１４に対し第２図Ｃに示した正極
性の駆動電圧Vdが印加され、僅かな時間をおい
て制動用の負極性の駆動電圧Vdが印加される。
正極性の駆動電圧Vdが印加されると、コイル１
４ｂにはパルス状の駆動電流idが流れ、同時に電
磁駆動部１４の磁力に反発して永久磁石１３は下
方に変位し弁体９が開弁を開始する。永久磁石１
３が下動限界位置に近づくと、コイル１４ｂには
パルス幅の小なる負極性の駆動電圧Vbが印加さ
れるため、波高値の小なるパルス状の駆動電流ib
が流れ、永久磁石１３はその変位を妨げる向きの
磁力を受け、第２図Ａ，Ｂに示した如く制動され
る。 First, when the exhaust valve 6 in the closed state opens, the positive drive voltage V d shown in FIG. A driving voltage V d of negative polarity is applied.
When positive drive voltage V d is applied, coil 1
A pulsed drive current i d flows through 4b, and at the same time, the permanent magnet 13 is repelled by the magnetic force of the electromagnetic drive unit 14, and the permanent magnet 13 is displaced downward, and the valve body 9 starts opening. Permanent magnet 1
3 approaches the lower limit position, a negative drive voltage V b with a small pulse width is applied to the coil 14b, so a pulse-like drive current i b with a small peak value
flows, and the permanent magnet 13 receives a magnetic force in a direction that prevents its displacement, and is braked as shown in FIGS. 2A and 2B.
そして、ストツパ１２が保持筒１０に当接係止
される直前にコイル１４ｂは非通電状態となり、
電磁駆動部１４は消磁される。従つて、ストツパ
１２は、弁体９等の可動部分の慣性質量と、前記
した磁力のみにより保持筒１０に当接係止され、
排気弁６は全開状態となる。このように、電磁駆
動部１４に永久磁石１３の変位を妨げる方向に制
動する駆動パルスを印加することにより弁体９の
全開時の衝撃力が緩和され、振動や騒音防止が達
成される。 Immediately before the stopper 12 is brought into contact with the holding cylinder 10, the coil 14b becomes de-energized.
The electromagnetic drive unit 14 is demagnetized. Therefore, the stopper 12 is held in contact with the holding cylinder 10 only by the inertial mass of the movable parts such as the valve body 9 and the above-mentioned magnetic force.
The exhaust valve 6 is fully open. In this way, by applying a driving pulse that brakes the electromagnetic drive unit 14 in a direction that prevents the displacement of the permanent magnet 13, the impact force when the valve body 9 is fully opened is alleviated, and vibration and noise prevention can be achieved.
次に、排気弁６を閉弁駆動するときは、コイル
１４ｂに対し、負極性、正極性の順でパルス状の
駆動電圧Vd，Vbが印加される。これにより、永
久磁石１３は、開弁時とは逆の経過をたどりなが
ら上動し、弁体９が弁座８に着座するまで変位す
る。この場合も、排気弁６が全閉したときにはコ
イル１４ｂに対する制動用の電流供給が断たれる
ため、永久磁石１３は前記したとおりコア１４ａ
との間の磁力により排気弁６は全閉状態に保たれ
る。すなわち、上述したように電磁駆動部１４の
コイル１４ｂに印加される駆動電圧Vdを制御す
ることにより、電磁駆動部１４における複数の磁
脚を有するコア１４ａと永久磁石１３間の磁力に
よつて永久磁石１３はその上下端部のいずれかが
コア１４ａの磁脚間に磁力安定状態をもつて位置
するように停止することになり、この時、弁体９
は開状態もしくは閉状態に保持されることにな
る。この結果、弁体９の開閉動作を極めて確実
に、かつ安定的に行わせることができる。さら
に、弁体９の開閉状態では永久磁石１３がコア１
４ａの磁脚に吸引されているために、コイル１４
ａに通電しておく必要がなく、電磁駆動部１４の
不所望な発熱を避けることができ、長寿命化、高
信頼化を図ることができる。 Next, when driving the exhaust valve 6 to close, pulsed drive voltages V d and V b are applied to the coil 14b in the order of negative polarity and positive polarity. As a result, the permanent magnet 13 moves upward while following the reverse course of the valve opening, and is displaced until the valve body 9 is seated on the valve seat 8. In this case as well, when the exhaust valve 6 is fully closed, the braking current supply to the coil 14b is cut off, so the permanent magnet 13 is connected to the core 14a as described above.
The exhaust valve 6 is kept fully closed due to the magnetic force between the two. That is, by controlling the drive voltage V d applied to the coil 14b of the electromagnetic drive unit 14 as described above, the magnetic force between the core 14a having a plurality of magnetic legs in the electromagnetic drive unit 14 and the permanent magnet 13 is The permanent magnet 13 is stopped such that either its upper or lower end is positioned between the magnetic legs of the core 14a with a stable magnetic force, and at this time, the valve body 9
may be held open or closed. As a result, the opening and closing operations of the valve body 9 can be performed extremely reliably and stably. Furthermore, when the valve body 9 is open or closed, the permanent magnet 13 is connected to the core 1.
Because it is attracted to the magnetic leg of 4a, the coil 14
There is no need to energize the electromagnetic drive unit 14, and undesired heat generation of the electromagnetic drive unit 14 can be avoided, resulting in a longer life and higher reliability.
なお、吸気弁５は、排気弁６と開閉タイミング
こそ異なるものの、ほぼ同様の動作を行なう。 Note that although the intake valve 5 and the exhaust valve 6 have different opening and closing timings, they operate in substantially the same way.
このように、排気弁６或いは吸気弁５の開閉
は、夫々駆動回路１６，１５によつてコイル１４
ｂに印加される駆動電圧を制御し、夫々所定のタ
イミングで行なわせることができる。 In this way, the opening and closing of the exhaust valve 6 or the intake valve 5 is controlled by the coil 14 by the drive circuits 16 and 15, respectively.
It is possible to control the drive voltage applied to b to perform each operation at a predetermined timing.
従つて、低速走行時と高速走行時において、吸
気弁５と排気弁６のそれぞれの開閉タイミングを
中央処理装置７の演算結果に応じて最適タイミン
グに制御することが可能である。 Therefore, it is possible to control the opening/closing timing of each of the intake valve 5 and the exhaust valve 6 to the optimum timing in accordance with the calculation results of the central processing unit 7 during low-speed driving and high-speed driving.
また、弁装置４は、電磁駆動であるから、可動
部の機械的摩擦や機械的損失が少なく、これによ
り低騒音、低振動化が可能である。 Further, since the valve device 4 is electromagnetically driven, the mechanical friction and mechanical loss of the movable parts are small, thereby making it possible to reduce noise and vibration.
なお、上記実施例において、吸気弁５と排気弁
６の夫々の弁軸１１に、弁体９を閉弁方向に附勢
するばねを設けてもよい。 In the above embodiment, a spring may be provided on each of the valve shafts 11 of the intake valve 5 and the exhaust valve 6 to bias the valve body 9 in the valve closing direction.
第１図は本考案の内燃機関用弁装置を適用した
内燃機関の一実施例を示す概略構成図、第２図Ａ
ないしＣは、夫々上記内燃機関用弁装置の動作を
説明するためのタイミングチヤート図である。
１……内燃機関、２……シリンダ、２ａ……燃
焼室、３……ピストン、４……弁装置、５……吸
気弁、６……排気弁、９……弁体、１３……永久
磁石、１４……電磁駆動部。
Fig. 1 is a schematic configuration diagram showing an embodiment of an internal combustion engine to which the internal combustion engine valve device of the present invention is applied, and Fig. 2A
1 to 3 are timing chart diagrams for explaining the operation of the internal combustion engine valve device, respectively. 1... Internal combustion engine, 2... Cylinder, 2a... Combustion chamber, 3... Piston, 4... Valve device, 5... Intake valve, 6... Exhaust valve, 9... Valve body, 13... Permanent Magnet, 14... Electromagnetic drive unit.
Claims (1)
焼させてピストンを動作させる内燃機関の該シリ
ンダに設けられ、前記燃焼室の内外を連通する連
通孔と、該連通孔を開閉する如く変位する弁体
と、該弁体より延びる弁軸の上端部に固定された
永久磁石と、複数の磁脚を有するコアに前記弁体
の開閉用のコイルを磁脚によつて独立的に配設さ
れて成る電磁駆動部とを具備し、前記弁体の開状
態もしくは閉状態における前記永久磁石の停止位
置を、該永久磁石の上下端のいずれかが前記コア
の磁脚間となるように前記電磁駆動部を制御する
ことを特徴とする内燃機関用弁装置。 A communication hole that is provided in a cylinder of an internal combustion engine that operates a piston by burning a mixture of fuel and air in the combustion chamber of the cylinder, and that communicates between the inside and outside of the combustion chamber, and a valve that is displaced to open and close the communication hole. a permanent magnet fixed to the upper end of a valve shaft extending from the valve body; and a core having a plurality of magnetic legs, and a coil for opening and closing the valve body is independently arranged by the magnetic legs. and an electromagnetic drive unit configured to control the stopping position of the permanent magnet when the valve body is in an open state or a closed state so that either the upper or lower end of the permanent magnet is between the magnetic legs of the core. A valve device for an internal combustion engine, characterized in that the valve device controls the internal combustion engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16497782U JPS5970013U (en) | 1982-10-31 | 1982-10-31 | Valve equipment for internal combustion engines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16497782U JPS5970013U (en) | 1982-10-31 | 1982-10-31 | Valve equipment for internal combustion engines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5970013U JPS5970013U (en) | 1984-05-12 |
| JPH0111930Y2 true JPH0111930Y2 (en) | 1989-04-07 |
Family
ID=30361550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16497782U Granted JPS5970013U (en) | 1982-10-31 | 1982-10-31 | Valve equipment for internal combustion engines |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5970013U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999030068A1 (en) * | 1997-12-08 | 1999-06-17 | Toyota Jidosha Kabushiki Kaisha | Device for driving solenoid valve |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2652802B2 (en) * | 1988-12-28 | 1997-09-10 | 株式会社いすゞセラミックス研究所 | Electromagnetic valve drive |
| JP4073584B2 (en) * | 1998-11-04 | 2008-04-09 | 株式会社ミクニ | Valve drive device |
-
1982
- 1982-10-31 JP JP16497782U patent/JPS5970013U/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999030068A1 (en) * | 1997-12-08 | 1999-06-17 | Toyota Jidosha Kabushiki Kaisha | Device for driving solenoid valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5970013U (en) | 1984-05-12 |
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