JPS59185877A - Ignition system for internal-combustion engine - Google Patents
Ignition system for internal-combustion engineInfo
- Publication number
- JPS59185877A JPS59185877A JP58059655A JP5965583A JPS59185877A JP S59185877 A JPS59185877 A JP S59185877A JP 58059655 A JP58059655 A JP 58059655A JP 5965583 A JP5965583 A JP 5965583A JP S59185877 A JPS59185877 A JP S59185877A
- Authority
- JP
- Japan
- Prior art keywords
- ignition
- coil
- spark plug
- housing
- ignition 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T13/00—Sparking plugs
- H01T13/40—Sparking plugs structurally combined with other devices
- H01T13/44—Sparking plugs structurally combined with other devices with transformers, e.g. for high-frequency ignition
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P13/00—Sparking plugs structurally combined with other parts of internal-combustion engines
Abstract
Description
【発明の詳細な説明】
本発明は内燃機関用点火装置に関し、詳しくは点火プラ
グと点火コイルとの接続、さらにエンジン不休との接続
構造に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an ignition device for an internal combustion engine, and more particularly to a connection structure between an ignition plug and an ignition coil, and a structure for connecting the ignition coil to an engine.
火花点火内燃機関における点火プラグはメインテナンス
フリーとなる傾向にあり、白金プラグ等の耐久性に優れ
た点火プラグも開発されている。Spark plugs in spark-ignition internal combustion engines tend to be maintenance-free, and highly durable spark plugs such as platinum plugs have also been developed.
このような状況においては、点火プラグ交換の不必要性
から現状の点火プラグのようにエンジン外部からネジに
より組み付ける必要性は全く無くなる訳である。つまり
エンジン本体に直接点火プラグが設けてあれば良い。In such a situation, since there is no need to replace the spark plug, there is no need to assemble the spark plug from the outside of the engine with screws as with the current spark plug. In other words, it is sufficient if the spark plug is installed directly in the engine body.
一方内燃機関の燃費改善の為に、希薄燃焼、高圧縮化か
ら点火プラグ、点火コイルの面から着火性の向上が図ら
れている。On the other hand, in order to improve the fuel efficiency of internal combustion engines, efforts are being made to improve ignition performance in terms of lean combustion, high compression, spark plugs, and ignition coils.
その１つに、点火プラグの電極を燃焼室中心部へ突き出
ず方法がある。しかし現実的には、高負荷時に電極温度
が上昇しプレイグニツシヨンを起こしやすくなる。さら
に電極の消耗も著しく増大してしまうという欠点がある
。これは現状の点火プラグがエンジンにネジで固定され
ている為、エンジンとの接触部は線接触となり、プラグ
電極の熱の引けが充分に行なわれない為と考えられる。One method is to prevent the spark plug electrode from protruding into the center of the combustion chamber. However, in reality, when the load is high, the electrode temperature rises, making pre-ignition more likely to occur. Furthermore, there is a drawback that the consumption of the electrodes increases significantly. This is thought to be because the current spark plug is fixed to the engine with screws, so the contact part with the engine is a line contact, and the plug electrode does not draw enough heat.
プラグ電極の熱の引けを良好にする為にはエンジン本体
との接触面積を増大させれば良く、例えば燃焼室内から
点火プラグを打ち込むといったような方法が考えられる
。さらに打ち込みによれば、点火プラグを直接エンジン
の冷却水で冷却する構造にすることも可能となってくる
。In order to improve the heat sink of the plug electrode, it is sufficient to increase the contact area with the engine body, for example, a method such as driving the spark plug from inside the combustion chamber can be considered. Furthermore, according to the design, it will be possible to create a structure in which the spark plug is directly cooled by the engine's cooling water.
一方、高圧縮化、希薄燃焼のエンジンの要求から点火コ
イルに対する要求電圧の上昇９点火エネルギーの増大の
要求が強まっているがエネルギーを増すには、体格が大
きくなる等の問題がある。On the other hand, the demand for higher compression and leaner burn engines has led to an increase in the voltage required for the ignition coil, and a stronger demand for an increase in ignition energy, but increasing the energy poses problems such as increasing the size of the engine.
このような状況の中で、現状のエンジンはディストリビ
ュータによる分配を行なっている。ディストリビュータ
で、高電圧を分配する際、エアギャップの存在により、
点火エネルギーのロス、高エネルギー化に伴なう電波障
害の増大等の問題があり、ダイオード分配方式、ユニッ
ト点火方式等のディストリビュータを無くすことで、電
波障害を防ぎ、かつ点火プラグへ供給される点火エネル
ギーを増大することが可能となる。これらのうち、点火
コイルのユニット化が注目されている。ユニット化によ
るメリットは、ディストリビュータのようなエアギャッ
プがなくせる為、エネルギーロスが無くなる。又電波障
害が無くなる。さらに、ハイテンションコードがいらな
いといったメリットもある。又、ユニット化の問題とし
て、現状１ケで良かった点火コイルが、気筒数と同様の
個数必要となり、現状の点火コイルが気筒数、点火プラ
グの上に乗るとすると、体格的に大きくなってしまうと
いう点である。しかし、１次コイル、２次コイル部のみ
を、点火プラグに接触し、駆動部はエンジンから離すと
いった方法をとれば、小型化が可能である。Under these circumstances, current engines are distributed by distributors. When distributing high voltage with a distributor, due to the presence of an air gap,
There are problems such as loss of ignition energy and increase in radio wave interference due to higher energy consumption, so by eliminating distributors such as diode distribution systems and unit ignition systems, radio wave interference can be prevented and the ignition supplied to the spark plugs can be improved. It becomes possible to increase energy. Among these, unitization of the ignition coil is attracting attention. The advantage of unitization is that it eliminates the air gap found in distributors, which eliminates energy loss. Also, there will be no radio interference. Another advantage is that there is no need for a high tension cord. Also, as a problem with unitization, the number of ignition coils that currently only need one is now required to be the same as the number of cylinders, and if the current ignition coil is mounted on the number of cylinders and spark plugs, it will become physically larger. The point is to put it away. However, miniaturization is possible by making only the primary coil and secondary coil parts contact the spark plug and moving the drive part away from the engine.
又、前述のように点火プラグをエンジン燃焼室内から打
ぢ込む方法をとれば点火プラグをエンジンに埋設するこ
とが可能である為、点火コイルの取り付はスペースもか
なり余裕が得られてくる。Furthermore, by inserting the spark plug from within the combustion chamber of the engine as described above, it is possible to embed the spark plug in the engine, which provides a considerable amount of space for installing the ignition coil.
本発明は上記の点に鑑み、エンジンに対し点火プラグ及
び点火コイルを良好に一体的に接続固定することを目的
とするものである。SUMMARY OF THE INVENTION In view of the above-mentioned problems, an object of the present invention is to properly connect and fix an ignition plug and an ignition coil integrally to an engine.
以下本発明を図に示す実施例について説明する。The present invention will be described below with reference to embodiments shown in the drawings.
まず、第１図に示す本発明の第１実施例について説明す
る。First, a first embodiment of the present invention shown in FIG. 1 will be described.
１は本発明の点火装置、２はエンジンのシリンダヘッド
である。点火装置１は点火プラグ部１１゜点火コイル部
１２により成る。1 is an ignition device of the present invention, and 2 is a cylinder head of an engine. The ignition device 1 includes an ignition plug section 11° and an ignition coil section 12.
点火プラグ部１１は、先端に白金チップを固着したＮ
ｉ −Ｃｒ合金より成る中心電極１１１、この中心電極
１１１の先端と対向する接地電極１１２、これら両者を
絶縁するアルミナ磁器より成るインシュレータ１１３、
ケイ素鋼板より成り、点火コイル部１２の鉄心として使
用する中軸１１４、中心電極１１１と中軸１１４とを電
気的に接続し、かつシールを行なう為の銅ガラスより成
るシール材１１５、インシュレータ１１３を固定する為
のハウジング１１６、接地電極１１２が固着されたホル
ダ１１７、シールの為の銅パツキン１１８゜１１９より
成る。そして、点火プラグ部１１はエンジンのシリンダ
ヘッド２に燃焼室３側から打ち込みにより固定シールさ
れる。２１はシール部である。燃焼室３側から打ち込む
為、燃焼室３内の圧力が上昇しても点火プラグ部１１が
外部へぬけることはない。The spark plug part 11 is an N spark plug with a platinum tip fixed to the tip.
A center electrode 111 made of i-Cr alloy, a ground electrode 112 facing the tip of this center electrode 111, an insulator 113 made of alumina porcelain that insulates these two,
A center shaft 114 made of a silicon steel plate and used as the iron core of the ignition coil portion 12, a sealing material 115 made of copper glass for electrically connecting the center electrode 111 and the center shaft 114 and for sealing, and an insulator 113 are fixed. It consists of a housing 116 for a ground electrode 112, a holder 117 to which a ground electrode 112 is fixed, and copper gaskets 118 and 119 for sealing. Then, the spark plug portion 11 is fixedly sealed into the cylinder head 2 of the engine by driving from the combustion chamber 3 side. 21 is a seal portion. Since the spark plug part 11 is driven from the combustion chamber 3 side, even if the pressure inside the combustion chamber 3 increases, the spark plug part 11 will not escape to the outside.
点火コイル部１２は、銅線を巻いた１次コイル１２１と
２次コイル１２２、これらコイル１２１゜１２２か巻か
れる絶縁性の樹脂より成る１次コイルボビン１２３と２
次コイルボビン１２４、及びハウジング１２５より成り
、１次コイル１２１の銅線の−ｉは１次コイルボビン１
２３に設けた端子１２６に接続される。他端は接地用の
端子１２７に接続される。２次コイル１２２の一端は２
次コイルボビン１２４に設けた高電圧端子１２８ζこ接
続暴れ、他端は接地用の端子１２７（こ接続されている
。１次コイル１２１と２次コイル１２２の巻き数比は１
５０程度であり、１次側に２００■乃至２５０■程度の
電圧を印加すると、２次コイル１２２に３０ＫＶ乃至３
７ＫＶ程度の高電圧が発生ずる。高電圧端子１２８と前
記点火プラグ部１１の中軸１１４との間にはスプリング
１２９が挿入されており、高電圧端子１２８と中軸１１
４との間にエアーギャップが形成されることなく、つま
りエネルギーロスなしに２次コイル１２２で発生した高
電圧を点火プラグ部１１の中心電極１１１に印加するこ
とができる。そして、中心電極１１１と接地−電極１１
２の間で火花放電をイテなう。The ignition coil section 12 includes a primary coil 121 and a secondary coil 122 wound with copper wire, and primary coil bobbins 123 and 2 made of insulating resin around which these coils 121 and 122 are wound.
Consists of a secondary coil bobbin 124 and a housing 125, -i of the copper wire of the primary coil 121 is the primary coil bobbin 1
It is connected to a terminal 126 provided at 23. The other end is connected to a grounding terminal 127. One end of the secondary coil 122 is 2
The high voltage terminal 128ζ provided on the secondary coil bobbin 124 is connected, and the other end is connected to the grounding terminal 127.The turn ratio of the primary coil 121 and secondary coil 122 is 1.
50, and when a voltage of about 200 to 250 is applied to the primary side, the voltage of 30 to 3 is applied to the secondary coil 122.
A high voltage of about 7KV is generated. A spring 129 is inserted between the high voltage terminal 128 and the center shaft 114 of the spark plug section 11.
The high voltage generated in the secondary coil 122 can be applied to the center electrode 111 of the ignition plug section 11 without forming an air gap between the secondary coil 122 and the spark plug 122, that is, without energy loss. Then, the center electrode 111 and the ground electrode 11
Let's create a spark discharge between 2.
点火コイル部１２の）＼ウジンク′１２５と点火プラグ
部１１の１ノ＼ウジング１１６との間Ｇこ番まＯＩノン
グ２２が設けてありシールが行なわれる。さらＧこ点火
コイル１２のｌ＼ウジング１２５とシＩＪンタ゛ヘッド
２との間もＯリング２３によりシール力＜嗜テなわれる
。ハウジング１２５と１次コイルボビン１２３３とはボ
ルト２４によりシリンダへ・ノド２Ｇこ固定される。A G-shaped OI tongue 22 is provided between the housing 125 of the ignition coil section 12 and the housing 116 of the spark plug section 11 for sealing. Furthermore, the O-ring 23 also maintains a sealing force between the housing 125 of the ignition coil 12 and the IJ control head 2. The housing 125 and the primary coil bobbin 1233 are fixed to the cylinder by bolts 24 at the throat 2G.
第１図に示すごとく点火プラク゛１１のノ＼ウジング１
１６と点火コイル部１２のノ＼ウシンク゛１２５はシリ
ンダヘッド２の水道路２５内Ｇこ１申入され、点火プラ
グ部１１と点火コイル部１２番ま冷却される。As shown in FIG.
16 and the sink 125 of the ignition coil portion 12 are inserted into the waterway 25 of the cylinder head 2, and the spark plug portion 11 and the ignition coil portion 12 are cooled.
点火プラグ部１１のインシュレータ１１３の上部外周に
は雄ネジ部１１３Ａが形成されてし）る。A male threaded portion 113A is formed on the upper outer periphery of the insulator 113 of the spark plug portion 11.
又、点火コイル部１２の２次コイルボビン１２４内周に
も雌ネジ部１２４Ａが形成されてむ）る。Further, a female screw portion 124A is also formed on the inner periphery of the secondary coil bobbin 124 of the ignition coil portion 12.
組付は順序は、■点火プラグ部１１を燃焼室３側からシ
リンダへ・ノド２に打込むつ■点火コイル部１２のハウ
ジング１２５をシリンダヘッド２の水道路２５内に挿入
する。０２次コイルポビン１２４の雌ネジ部１２４Ａを
点火プラグ部１１のインシュレータ１１３の雌ネジ部１
１３Ａにねじ込む。０１次コイル１２３をその上よりか
ぶせる。The assembly order is as follows: 1) Drive the ignition plug part 11 into the cylinder from the combustion chamber 3 side into the throat 2; 2) Insert the housing 125 of the ignition coil part 12 into the waterway 25 of the cylinder head 2. Connect the female screw portion 124A of the secondary coil pobbin 124 to the female screw portion 1 of the insulator 113 of the spark plug portion 11.
Screw into 13A. 01 primary coil 123 is placed over it.
■端子１２６，１２７部に１次コイル１２１．２次コイ
ル１２２の銅線及び、リード線４１．４２をハンダ付け
により接続する。(2) Connect the copper wires of the primary coil 121 and secondary coil 122 and the lead wires 41 and 42 to the terminals 126 and 127 by soldering.
次に、本発明の特徴効果について説明する。Next, the characteristic effects of the present invention will be explained.
第１の特徴について述べる。点火プラグ部１１の電極つ
まり中心電極１１１及び接地電極１１２の熱の引けを良
好とする為、点火プラグ部１１のハウジング１１６、及
びホルダ１１７が打ち込みで固定されており、さらにハ
ウジング１１６の一部はシリンダヘッド２の水道路２５
内に面している為、電極部は速やかに冷却される。同様
に点火コイル部１２のハウジング１２５も水通路に一部
が面しておりコイルの発熱を防止できる。The first feature will be described. In order to improve the heat dissipation of the electrodes of the spark plug part 11, that is, the center electrode 111 and the ground electrode 112, the housing 116 and the holder 117 of the spark plug part 11 are fixed by hammering, and a part of the housing 116 is Water road 25 of cylinder head 2
Since it faces inward, the electrode part is quickly cooled. Similarly, a portion of the housing 125 of the ignition coil portion 12 faces the water passage, thereby preventing the coil from generating heat.
第２の特徴について述べる。点火プラグ部１１の中軸１
１４を点火コイル部１２の鉄心として利用した点である
。この構成により、点火装置１の小型化が可能となる。The second feature will be described. Center shaft 1 of spark plug part 11
14 is used as the iron core of the ignition coil section 12. This configuration allows the ignition device 1 to be downsized.
第３の特徴を説明する。点火プラグ部１１の中軸１１４
と点火コイル部１２の高電圧端子１２８の電気的接合に
スプリング１２９を使用した為、両者の間にエアーギャ
ップが形成されることがなく、点火エネルギーのロス及
び電波障害が無くなる。The third feature will be explained. Center shaft 114 of spark plug section 11
Since the spring 129 is used to electrically connect the high voltage terminal 128 of the ignition coil section 12 to the high voltage terminal 128 of the ignition coil section 12, no air gap is formed between the two, eliminating loss of ignition energy and radio wave interference.
第４の特徴は、点火プラグ１１のインシュレーク１１３
の上部外周に雄ネジ部１１３Ａ、及び２次コイルボビン
１２４の内面に雌ネジ部１２４Ａを設けた点である。こ
れらネジ部１１３Ａ、１２４Ａを設けたことにより、所
謂コルゲーションの役目ができ、高電圧端子１２８と点
火プラグ部１１のハウジング１１６との沿面距離が長く
でき、沿面におけるリークを防止できる。The fourth feature is that the insulation 113 of the spark plug 11
A male threaded portion 113A is provided on the upper outer periphery of the coil bobbin 124, and a female threaded portion 124A is provided on the inner surface of the secondary coil bobbin 124. The provision of these threaded portions 113A and 124A serves as a so-called corrugation, increasing the creeping distance between the high voltage terminal 128 and the housing 116 of the spark plug portion 11, and preventing leakage along the creeping surface.
以上の構成により、シリンダへ・ノド２に、点火プラグ
部１１と点火コイル部１２とを結合した点火装ｗ１をコ
ンパクトに収納することができる。With the above configuration, the ignition device w1 that combines the spark plug part 11 and the ignition coil part 12 can be housed in the cylinder throat 2 in a compact manner.
なお、上述した実施例においては、ケイ素鋼板より成る
中軸１１４を点火プラグ部１１に固定したが、２次コイ
ルボビン１２４に中軸１１４を固定し、端子１２８を点
火プラグ１１にシール材１１５で固定し、スプリング１
２９を中軸１１４と端子１２８の間に設けて電気的接続
を行なっても良い。この時２次コイル１２２の銅線の一
端は端子１２８でなく中軸１１４に接続される。In the above embodiment, the center shaft 114 made of a silicon steel plate was fixed to the spark plug part 11, but the center shaft 114 was fixed to the secondary coil bobbin 124, the terminal 128 was fixed to the spark plug 11 with the sealing material 115, Spring 1
29 may be provided between the center shaft 114 and the terminal 128 for electrical connection. At this time, one end of the copper wire of the secondary coil 122 is connected not to the terminal 128 but to the center shaft 114.
また、上述した実施例においては、点火プラグ部１１を
シリンダヘッドの燃焼室側から打ち込んだが、点火プラ
グと点火コイルより成る点火装置１を一体で形成し、エ
ンジン外部から打ち込んで固定しても良い。Further, in the above-described embodiment, the spark plug part 11 is driven in from the combustion chamber side of the cylinder head, but the ignition device 1 consisting of the spark plug and the ignition coil may be integrally formed and then driven in and fixed from outside the engine. .
また、上述した実施例では、中軸１１４と高電圧端子１
２８を接続するスプリング１２９にコイルスプリングを
使用したが、皿バネ等を用いても良い。即ち、エアギヤ
ツブが形成されなければ良い。Furthermore, in the embodiment described above, the center shaft 114 and the high voltage terminal 1
Although a coil spring is used for the spring 129 connecting 28, a disc spring or the like may also be used. That is, it is sufficient if no air gear is formed.
また、上述した実施例では、コルゲーションのかわりに
ネジ部１１３Ａ、１２４Ａを設けたが、２次コイルボビ
ン１２４の全長が、沿面で高電圧端子１２８と点ｒプラ
グ部１１のハウ″グ１１６との間でリークしない距離が
得られるならば、ネジ部を設けなくても良い。Further, in the embodiment described above, the threaded portions 113A and 124A are provided instead of the corrugation, but the entire length of the secondary coil bobbin 124 is between the high voltage terminal 128 and the housing 116 of the point R plug portion 11 on the creeping surface. If it is possible to obtain a distance that prevents leakage, there is no need to provide a threaded portion.
また、上述した実施例では０リング２２．２３を用いて
シールを行なったが、アスベスト等のガスケットを使用
しても良い。Further, in the above-described embodiment, sealing was performed using O-rings 22 and 23, but a gasket made of asbestos or the like may also be used.
また、上述した実施例においては、点火プラグ部１１の
中軸１１４を点火コイル部１２の鉄心として構成したが
、第２図に示す第２＊施例の如く、点火コイル部１１と
点火プラグ部１２を別体として構成し、両者を接続して
も良い。この第２図において、１１４Ａは点火コイル部
１１に設けた鉄心、１１４Ｂは点火プラグ部１２の中軸
、１１３Ｂは点火プラグ部１１のインシュレータ１１３
の先端外周に設けられたコルゲーション、１２４Ｂは点
火コイル部１２のハウジング１２５のプラグ側突出筒１
２５Ａの内周に設けられたコルゲーションで、これら両
コルゲージ２ン１１３Ｂ、１２４Ｂは互いに対向させで
ある。１３０はコイル部１２を水冷する為、水道路２５
と連通させてハウジング１２５に形成した通路である。Further, in the embodiment described above, the center shaft 114 of the ignition plug section 11 was configured as the iron core of the ignition coil section 12, but as in the second* embodiment shown in FIG. It is also possible to construct them as separate bodies and connect them together. In FIG. 2, 114A is the iron core provided in the ignition coil section 11, 114B is the center shaft of the ignition plug section 12, and 113B is the insulator 113 of the ignition plug section 11.
A corrugation 124B is provided on the outer periphery of the tip of the plug-side protruding tube 1 of the housing 125 of the ignition coil section 12.
25A, and these two corrugations 113B and 124B are opposed to each other. 130 is a water road 25 for cooling the coil part 12 with water.
This is a passage formed in the housing 125 in communication with the housing 125.
１２９は鉄心１１４ Ａと中軸１１４Ｂをエアギヤツブ
なしで接続する為のスプリングである。また、プラグ側
突出筒１２５Ａの外周には雄ネジ部１２５Ｂが形成され
、シリンダヘッド２に形成した筒状保持部２Ａ内周に形
成した雌ネジ部にねじ込まれている。129 is a spring for connecting the iron core 114A and the center shaft 114B without an air gear. Further, a male threaded portion 125B is formed on the outer periphery of the plug-side protruding cylinder 125A, and is screwed into a female threaded portion formed on the inner periphery of the cylindrical holding portion 2A formed on the cylinder head 2.
第１図および第２図は本発明装置の第１および第２実施
例を示す縦断面図である。
１・・・点火装置、２・・・シリンダヘッド、３・・・
燃焼室、１１・・・点火プラグ部、１２・・・点火コイ
ル部、２４・・・ボルト、２５．・・・水通路、１１１
・・・中心電極、１１２・・・接地電極、１１°３・・
・インシュレータ、１１３Ａ・・・雄ネジ部、１１３Ｂ
・・・コルゲーション、１１４・・・電極の一部をなす
とともに鉄心をかねる中軸、１１４Ｂ・・・中軸、１１
６・・・ハウジング、１２１・・・１次コイル、１２２
・・・２次コイル、１２３・・・１次コイルボビン、１
２４・・・２次コイルボビン、１２４Ａ・・・雌ネジ部
、１２゜５・・・ハウジング、１２５Ｂ・・・雄ネジ部
、１２８・・・高電圧端子、１２９・・・コイルスプリ
ング。
代理人弁理士 岡 部 隆
第１図
第２図1 and 2 are longitudinal sectional views showing first and second embodiments of the apparatus of the present invention. 1... Ignition device, 2... Cylinder head, 3...
Combustion chamber, 11... Spark plug part, 12... Ignition coil part, 24... Bolt, 25. ...Water passage, 111
...Center electrode, 112...Ground electrode, 11°3...
・Insulator, 113A...Male thread part, 113B
... Corrugation, 114 ... Center shaft that forms part of the electrode and also serves as the iron core, 114B ... Center shaft, 11
6...Housing, 121...Primary coil, 122
...Secondary coil, 123...Primary coil bobbin, 1
24... Secondary coil bobbin, 124A... Female threaded part, 12°5... Housing, 125B... Male threaded part, 128... High voltage terminal, 129... Coil spring. Representative Patent Attorney Takashi Okabe Figure 1 Figure 2
Claims (1)
で成る点火コイル部と、中心電極、接地電極。 これら両者を絶縁するインシュレータおよびハウジング
を含んで成る点火プラグ部とを備え、前記点火コイル部
と点火プラグ部とを直接接続して一体的に構成すると共
に、前記点火コイル部の２次コイル側の高電圧端子と前
記点火プラグ部の入力端子とをスプリングで接続した内
燃機関用点火装置。 （２）前記点火プラグの電極の少なくとも一部を点火コ
イル部の鉄心として構成してなる特許請求の範囲第１項
に記載の点火装置。 （３）前記点火プラグ部と点火コイル部とのハウジング
の少な（とも一部が内燃機関の水通路に直接面している
特許請求の範囲第１項あるいは第２項に記載の点火装置
。 （４）前記点火プラグ部のインシュレータ及び前記点火
コイル部の２次コイルボビンの少なくとも一部にネジ部
が形成され、これら両者が結合されてなる特許請求の範
囲第１項または第２項または第３項に記載の点火装置。 （５）前記点火コイル部のハウジングにコルゲージジン
が形成されてなる特許請求の範囲第１項乃至第４項のい
ずれかに記載の点火装置。 （６）前記点火コイル部は内燃機関に固定されてな−る
特許請求の範囲第１項乃至第５項のいずれかに記載の点
火装置。 （７）前記点火プラグ部は燃焼室側からシリンダヘッド
に打ち込み固定されてなる特許請求の範囲第１項乃至第
６項のいずれかに記載の点火装置。[Claims] (111) An ignition coil section including an 111st coil, a secondary coil, and a housing, a center electrode, and a ground electrode; an ignition plug section including an insulator and a housing for insulating these two; An internal combustion engine in which the ignition coil section and the ignition plug section are directly connected to form an integral structure, and the high voltage terminal on the secondary coil side of the ignition coil section and the input terminal of the ignition plug section are connected by a spring. (2) The ignition device according to claim 1, wherein at least a part of the electrode of the spark plug is configured as an iron core of an ignition coil portion. (3) The spark plug portion and the ignition coil. The ignition device according to claim 1 or 2, wherein a portion of the housing of the spark plug portion and a portion thereof directly face the water passage of the internal combustion engine. The ignition device according to claim 1, 2, or 3, wherein a threaded portion is formed in at least a portion of the secondary coil bobbin of the ignition coil portion, and the two are coupled. The ignition device according to any one of claims 1 to 4, wherein a corrugated gin is formed in the housing of the ignition coil portion. (6) The ignition device according to any one of claims 1 to 4, wherein the ignition coil portion is fixed to an internal combustion engine. The ignition device according to any one of claims 1 to 5. (7) Claims 1 to 6, wherein the spark plug portion is driven and fixed into the cylinder head from the combustion chamber side. The ignition device according to any of the above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58059655A JPS59185877A (en) | 1983-04-04 | 1983-04-04 | Ignition system for internal-combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58059655A JPS59185877A (en) | 1983-04-04 | 1983-04-04 | Ignition system for internal-combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59185877A true JPS59185877A (en) | 1984-10-22 |
Family
ID=13119432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58059655A Pending JPS59185877A (en) | 1983-04-04 | 1983-04-04 | Ignition system for internal-combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59185877A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4768477A (en) * | 1986-10-03 | 1988-09-06 | Caterpillar Inc. | Pressurized ignition system |
| US4903674A (en) * | 1989-03-13 | 1990-02-27 | General Motors Corporation | Spark developing apparatus for internal combustion engines |
| US4989575A (en) * | 1987-12-02 | 1991-02-05 | Sanshin Kogyo Kabushiki Kaisha | Ignition device for internal combustion engine |
| US5003958A (en) * | 1988-12-27 | 1991-04-02 | Nissan Motor Co., Ltd. | Ignition coil mounting structure for engine |
-
1983
- 1983-04-04 JP JP58059655A patent/JPS59185877A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4768477A (en) * | 1986-10-03 | 1988-09-06 | Caterpillar Inc. | Pressurized ignition system |
| US4989575A (en) * | 1987-12-02 | 1991-02-05 | Sanshin Kogyo Kabushiki Kaisha | Ignition device for internal combustion engine |
| US5003958A (en) * | 1988-12-27 | 1991-04-02 | Nissan Motor Co., Ltd. | Ignition coil mounting structure for engine |
| US4903674A (en) * | 1989-03-13 | 1990-02-27 | General Motors Corporation | Spark developing apparatus for internal combustion engines |
| JPH02284375A (en) * | 1989-03-13 | 1990-11-21 | General Motors Corp <Gm> | Spark generator |
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